Research activity information

• Jan. 2017 Transportation Infrastructure Geotechnology, THE FUMIO TATSUOKA BEST PAPER AWARD 2016, Axial Behavior of Buried Rehabilitated Pipe in Liquefaction Ground; Geosynthetic-Reinforced Walls and Embankments

  TOSIHINORI KAWABATA

  International academic award


• Nov. 2012 ジオシンセティックス学会日本支部, 技術奨励賞, ジオグリッドによる圧力管屈曲部の耐震化工法の研究開発

  KAWABATA TOSHINORI, SAWADA YUTAKA, 毛利栄征

  Japan society


• Sep. 2011 農業農村工学会, 優秀論文賞, 圧力曲管部スラスト防護工法の設計手法の提案

  SAWADA YUTAKA, KAWABATA TOSHINORI, 毛利 栄征

  Japan society


• Aug. 2006 農業土木学会, 農業土木学会沢田賞, 管路の浅埋設工法の開発と普及

  Kawabata Toshinori


• Dec. 2002 国際ジオシンセティックス学会日本支部, ジオシンセティックス学会技術賞, ジオグリッドによるパイプラインの浅埋設施工について

  Kawabata Toshinori

• Centrifuge Model Studies on the Mechanical Behavior of a Buried Pipe with Voids Surrounding the Bottom and the Effectiveness of EPS as a Countermeasure

  Yusuke Sonoda, Yutaka Sawada, Hoe I. Ling, Liming Li, Toshinori Kawabata

  American Society of Civil Engineers (ASCE), Aug. 2024, Journal of Geotechnical and Geoenvironmental Engineering, 150(8) (8)

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• A Labor-Saving Method of Pipe Uplifting Countermeasure with Geocell-Geotextile Combination

  Taishi Nagatani, Yutaka Sawada, Ruka Ikebata, Shuji Ito, Yusuke Sonoda, Toshinori Kawabata

  Abstract In this study, we proposed a new method which mitigates pipe uplifting by utilizing geocells and geotextiles. The method resulted in labor saving in construction. To verify the effectiveness of the proposed method, we reproduced pipe uplift by conducting push-up tests using a 150-mm-diameter pipe. The test results showed that the proposed method increased the peak resistance and the resistance at large displacement by 1.47 and 3.35 times, respectively, compared to the unreinforced method. The proposed method also increased the peak resistance by 1.13 times compared to the conventional method widely used in Japan. It demonstrated consistently high resistance even after the peak. This indicated that the proposed method is very effective as a countermeasure against pipe uplift. Furthermore, increasing the overall width of the geocell improved the resistance. In this study, two different approaches were used to evaluate the uplift resistance of the pipe. The approaches showed that, with geocell reinforcement, most of the dead weight at the pipe sides and above them contributed to the peak resistance. It was also found that the peak resistance of the proposed method can be predicted to some extent by modifying the previously proposed equation.

  Springer Science and Business Media LLC, Jun. 2024, Transportation Infrastructure Geotechnology

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• New geocell utilisation as a pipe uplifting countermeasure and its validation using model experiments

  Taishi Nagatani, Yutaka Sawada, Yusuke Inoue, Shuji Ito, Hoe I. Ling, Toshinori Kawabata

  Dec. 2023, Geotextiles and Geomembranes, English, International magazine, Co-authored internationally

  [Refereed]

  Scientific journal


• Improved Thrust Restraint Design Considering Displacement of Pipe Bend and Joint Separation

  Yoko Ohta, Yutaka Sawada, Megumi Kitada, Toshinori Kawabata

  May 2023, JOURNAL OF PIPELINE SYSTEMS ENGINEERING AND PRACTICE, 14(2) (2), English

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Lateral Force-displacement Relationships for Shallowly Buried Pipe Reinforced by Geocell

  Yutaka Sawada, Megumi Kitada, Hoe I. Ling, Toshinori Kawabata

  Geocell reinforcements are proposed as a thrust countermeasure for shallowly buried pipeline bends and tees. The proposed method is easy to construct and has shorter construction time than the use of conventional concrete blocks since it does not require curing. Lateral loading tests were conducted on plates reproducing pipe bends or tees to verify their effectiveness while understanding deformation mechanisms. In addition to changing the plate width and geocell pocket size, additional experiments were conducted with different geocell reinforcement dimensions, geocell tensile stiffnesses and tensile properties of the seams. An equation for predicting the force–displacement relationship was developed as part of the proposed design method. The experimental results showed that the sides of the reinforced ground were not fully integrated when the width of the geocell reinforcement was large relative to the plate width. It was also found that the maximum force hardly decreased, although the displacement increased slightly due to the reduction of the tensile stiffness of the geocells and the tensile force at the geocell seams. Moreover, a hyperbolic approximation of the force–displacement relationship of the geocell reinforcement was developed and the calculated values agreed well with the experimental values.

  Thomas Telford Ltd., 2023, Geosynthetics International, 1 - 14, English, International magazine

  [Refereed]

  Scientific journal


• Investigation of Orientation Angle of Short Glass Fiber in Polyethylene Pipe Using X-ray CT

  時吉 充亮, 竹内 翔吾, 木津 遼太郎, 澤田 豊, 河端 俊典

  The Japanese Society of Irrigation, Drainage and Rural Engineering, 2023, Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering, 91(1) (1), IV_1 - IV_4, Japanese


• EFFECTIVENESS OF EXISTING CHANNEL WALL ON THRUST RESTRAINT FOR PIPE BENDS AND EFFECT OF GEOGRID ON REINFORCEMENT OF CHANNEL

  Yoko OHTA, Taishi NAGATANI, Yutaka SAWADA, Toshinori KAWABATA

  Japan Chapter of International Geosynthetics Society, Oct. 2022, Geosynthetics Engineering Journal, 37, 1 - 8

  Scientific journal


• MODEL TESTS ON EFFECTIVENESS OF EPS FOUNDATION AS A COUNTERMEASURE AGAINST INSUFFICIENT COMPACTION AROUND BURIED PIPE

  SONODA Yusuke, SAWADA Yutaka, IKAWA Chihaya, TAKAHARA Gentaro, KAWABATA Toshinori

  It is difficult to backfill and compact the narrow space in the bottom side of the pipe and ensure sufficient quality. Insufficient backfilling may cause unexpected deformation and stress concentration in the pipe. In this study, a method of installing EPS as a pipe foundation was proposed, and its effectiveness was examined through a model experiment using 300 polyethylene pipes. The results showed that, when EPS is installed, depending on its geometry, slightly larger strains may occur at the bottom of the pipe or at the contact point between the pipe and EPS, but these strains are significantly smaller than the strain concentrations caused by insufficient backfilling and are not large enough to cause pipe failure, indicating the effectiveness of the EPS as a pipe foundation.

  Japan Chapter of International Geosynthetics Society, Oct. 2022, Geosynthetics Engineering Journal, 37, 85 - 92, Japanese


• Three-dimensional Deformation Behavior for Buried Pipe Joints Subjected to Local Differential Settlement Using Three-direction Strain Measurement

  Yusuke Sonoda, Yutaka Sawada, Kohei Ono, Yoko Ohta, Toshinori Kawabata

  Springer Science and Business Media LLC, Aug. 2022, Transportation Infrastructure Geotechnology

  [Refereed]

  Scientific journal


• Effects of gravel layer as thrust restraint for pipe bends subjected to earthquake loading

  Yoko Ohta, Yutaka Sawada, Mitsuru Ariyoshi, Yoshiyuki Mohri, Toshinori Kawabata

  Thomas Telford Ltd., Mar. 2022, International Journal of Physical Modelling in Geotechnics, 22(2) (2), 99 - 110, English, International magazine

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Development of Flexible Structural Precast Concrete Conduits for Earth Dams

  Yutaka Sawada, Junichi Arita, Masaki Omori, Mitsuru Ariyoshi, Toshinori Kawabata

  Feb. 2022, Journal of Pipeline Systems Engineering and Practice, 13(1) (1)

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Improvement of Calculation for Phreatic Lines in Small Earth Dams

  MATSUMOTO Takeru, SAWADA Yutaka, SHIMIZU Masayoshi, KAWABATA Toshinori

  In recent years, many small earth dams have been retrofitted because of deterioration. The phreatic lines in small earth dams with sloping cores are geometrically calculated with the sectional shape of embankment, the water elevation and the permeability of soil materials in the current design. However, there is possibility that actual phreatic lines and calculated ones are different because of the assumption that the foundation ground is impermeable. In this study, the problems of the calculation method for phreatic line in the current design have been organized based on the results of FEM analysis. As a result, it was found that when the permeability of the sloping core is low, the phreatic line calculated by the design calculation is on the dangerous side, and that the seepage flow of the foundation soil affects the phreatic line. To solve these two problems, we proposed methods to reduce the calculation error of the current design by using functions that include the permeability of each embankment material and to obtain results that are closer to the actual phreatic lines.

  The Japanese Society of Irrigation, Drainage and Rural Engineering, 2022, Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering, 90(2) (2), I_259 - I_266, Japanese

  [Refereed]


• Development and Performance Evaluation of Rotary Underwater Abrasion Tester

  KANAMORI Takuya, ARITA Junichi, ASANO Isamu, KAWABE Shohei, AOYANAGI Kunio, KAWABATA Toshinori, SAWADA Yutaka, MORI Mitsuhiro

  We developed a rotary underwater abrasion tester that can be applied to high strength concrete materials with a large coarse aggregate. In this study, firstly, we experimentally investigated the test conditions under which the developed tester can generate stable flow and large abrasion action. The results confirmed that (1) a stable water flow can be generated when the initial water level is 40 cm and rotational speed is 70 rpm and (2) a large abrasive force was generated by using an abrasive material in the shape of a prism with a length of 19 mm, width of 19 mm, and height of 20 mm. Secondly, we performed an accelerated abrasion test for concrete and mortar and confirmed the characteristics of abrasion on the specimens. The results indicated that, when dissimilar materials are adjacent to each other, the downstream specimen, where the materials are switched, is affected by the dissimilar materials. Conversely, it was confirmed that a longer flow distance of the same material was effective in reducing the effect of the dissimilar materials.

  The Japanese Society of Irrigation, Drainage and Rural Engineering, 2022, Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering, 90(1) (1), I_139 - I_148, Japanese

  [Refereed]


• ジオグリッドによる矢板引抜き時のたわみ性管の変形抑制効果について

  園田悠介, 徳増美月, 澤田豊, 河端俊典

  Dec. 2021, ジオシンセティックス論文集, 36, 37 - 44, Japanese

  [Refereed]

  Scientific journal


• ジオシンセティッククレイライナーが敷設されたため池堤体の浸潤線設定方法の提案

  澤田 豊, 松本 赳, 井上 和徳, 浦部 朋子, 河端 俊典

  Dec. 2021, 農業農村工学会論文集, 89(2) (2), I_363 - I_369, Japanese

  [Refereed]

  Scientific journal


• Changes of Deformation and Earth Pressure for Flexible Pipe during Sheet-Pile Extraction and Effect of the Breadth of Sheet-Pile

  SONODA Yusuke, TOKUMASU Mizuki, SAWADA Yutaka, KAWABATA Toshinori

  Sheet pile construction has often been adopted for installations of pipelines in cases such as limited worksites or high ground water level. However, the sheet-pile extraction is likely to cause significant damage to buried flexible pipe. In the Japanese current design standard for irrigation pipeline, the influence of the sheet-pile extraction is empirically considered only by reducing the coefficient of subgrade reaction e´₀. Thus, the difference in construction conditions is not accurately reflected in the design. In this study, the model tests on the sheet-pile extraction were conducted under the difference conditions of breadth of sheet-pile, using the flexible pipe in which the 20 biaxial load cells were installed circumferentially. As a result, the significant decrease in the earth pressure acting on the pipe and most of the pipe deformation occurred before the lower end of sheet-pile was extracted to the top of pipe. In addition, the wider the breadth between sheet-piles in this study was, the smaller the pipe deflection was, because the reduction of horizontal earth pressure was suppressed and vertical one was decreased.

  The Japanese Society of Irrigation, Drainage and Rural Engineering, Dec. 2021, Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering, 89(2) (2), I_379 - I_386, Japanese

  [Refereed]


• 基礎材料に固結工法を用いた屈曲管路のスラスト力対策工法に関する遠心振動実験

  有吉 充, 太田 遥子, 澤田 豊, 毛利 栄征, 泉 明良, 河端 俊典

  Jul. 2021, 農業農村工学会論文集, 89(2) (2), I_235 - I_231, Japanese

  [Refereed]

  Scientific journal


• Scour reduction in sand beds against vertical jets by applying sheet-like countermeasures

  Takegawa, N., Sawada, Y., Kawabata, T.

  Informa UK Limited, Jun. 2021, Marine Georesources & Geotechnology, 39(6) (6), 649 - 658

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Mitigating tsunami damage by promoting ground erosion

  Naoki Takegawa, Yutaka Sawada, Toshinori Kawabata

  Apr. 2021, Journal of Earthquake and Tsunami, 15(2) (2), English, International magazine

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Geocell Reinforcements for Pipe Bends Under Lateral Loading

  Megumi Kitada, Yutaka Sawada, Toshinori Kawabata

  2021, Transportation Infrastructure Geotechnology, 10(1) (1), 82 - 97, English, International magazine

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• Damage characteristics of conduits in irrigation earth dams

  Yutaka Sawada, Junichi Arita, Masaki Omori, Toshinori Kawabata

  Jan. 2021, Paddy and Water Environment, 19(1) (1), 239 - 247, English, International magazine

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• A Review of Data on Biodegradable Resin Concrete and Future Tasks

  Mariko Suzuki, Kazuya Inoue, Toshinori Kawabata

  Springer Singapore, 2021, Lecture Notes in Civil Engineering, 3 - 12, English, International magazine

  [Refereed]

  In book

  Link to Kobe Univ. Repository (Kernel)


• MECHANICAL BEHAVIOR OF SHALLOWLY BURIED PIPELINE USING GEOGRIDS DURING SHEET-PILE EXTRACTION

  Toda Mayu, Miyazaki Noritake, Sawada Yutaka, Kawabata Toshinori

  Sheet-piles are used in order to install pipelines. Sheet-pile extraction causes pipe damages such as excessive deformation and cracks. In recent years, it is required that pipelines be buried shallowly because of reduction of construction cost. There are few studies on the influence of construction on the shallowly buried pipe using geogrid. In the present study, model experiments were conducted in order to clarify the influence of sheet-pile extraction on shallowly buried pipe using geogrid. Test results showed that the pipe deformation was small in the case of using geogrid and gravel. However, the reduction of bedding due to the sheet-pile extraction may cause the concentration of earth pressure on the bottom of the pipe.

  Japan Chapter of International Geosynthetics Society, Dec. 2020, Geosynthetics Engineering Journal, 35, 179 - 184, Japanese

  [Refereed]

  Link to Kobe Univ. Repository (Kernel)


• Seismic performance and numerical simulation of earth-fill dam with geosynthetic clay liner in shaking table test

  Kyungbeom Jeong, Satoru Shibuya, Toshinori Kawabata, Yutaka Sawada, Hiroshi Nakazawa

  Apr. 2020, Geotextiles and Geomembranes, 48(2) (2), 190 - 197, English, International magazine

  [Refereed]

  Scientific journal


• Model Experiment for Influence of Sheet Pile Characteristics on Mechanical Behavior of Buried Flexible Pipe

  Mizuki Tokumasu, Yutaka Sawada, Takuya Ishikawa, Ohta Yoko, Toshinori Kawabata

  2020, Pipelines 2020: Utility Engineering, Surveying, and Multidisciplinary Topics - Proceedings of Sessions of the Pipelines 2020 Conference, 31 - 39, English, International magazine

  [Refereed]

  International conference proceedings


• Post-Earthquake Performances of Small Earth Dams with Geosynthetic Clay Liners

  Nakazawa, H., Sawada, Y., Oda, T., Shibuya, S., Kawabata, T.

  Jan. 2020, Journal of the Society of Materials Science, 69(1) (1), 21 - 28, Japanese, Domestic magazine

  [Refereed]

  Scientific journal


• Geogrid-based countermeasures against scour behind coastal dikes under tsunami overflow

  Takegawa, N, SAWADA YUTAKA, KAWABATA TOSHINORI

  Taylor & Francis, Jan. 2020, Marine Georesources & Geotechnology, 38(1) (1), 64 - 72, English

  [Refereed]

  Scientific journal


• Effect of installation geometry on dynamic stability of small earth dams retrofitted with a geosynthetic clay liner

  Sawada, Y., Nakazawa, H., Take, W.A., Kawabata, T.

  Elsevier BV, Dec. 2019, Soils and Foundations, 59(6) (6), 1830 - 1844, English

  [Refereed]

  Scientific journal


• In Situ Water Level Measurement in a Small Earth Dam Repaired with Geosynthetic Clay Liners

  SAWADA Yutaka, MAKI Riku, KAMINOBU Koichi, TANIMOTO Mikio, NAKAZAWA Hiroshi, KAWABATA Toshinori

  In recent years, geosynthetic clay liners (GCLs) have been used for repair of deteriorated small earth dams because of exhaustion of high quality cohesive soils. However, the design method has not been established yet, and the long term performance remains unclear. In this study, in-situ water level measurement has been carried out for about one year in a small earth dam repaired with GCLs to examine the water barrier performance and the phreatic line. In addition to the field measurement, FEM seepage analysis have been performed for this site to estimate the phreatic line. As a result, the water barrier performance of the GCLs sufficiently maintained. Furthermore, it was revealed that the phreatic line rose by more than 1 m due to the heavy rainfall which occurred during this measurement period. As for the numerical analysis, the phreatic line obtained from FEM analysis was good agreement with the observed value, and a comparison of the models with and without GCLs showed the effects of lowering the phreatic line and reducing the leakage.

  The Japanese Society of Irrigation, Drainage and Rural Engineering, Dec. 2019, Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering, 309(2) (2), Ⅰ_357 - 363, Japanese

  [Refereed]

  Scientific journal


• Shaking table tests for buried pipe bends with thrust restraints using geogrid and gravel in liquefied ground

  Ohta, Y, Sawada, Y, Kawamura, M, Ono, K, KAWABATA TOSHINORI

  International Society of Ocean and Polar Engineering, Jun. 2019, Proceedings of the 29th International Society of Ocean and Polar Engineering Conference, 2, 2373 - 2377, English

  [Refereed]

  International conference proceedings


• Model Experiments on Influence of Sheet-pile Extraction on Mechanical Behavior of Twin Buried Flexible Pipes

  Toda, M, Sawada, Y, Miyazaki, N, Ishikawa, T, KAWABATA TOSHINORI

  International Society of Ocean and Polar Engineering, Jun. 2019, Proceedings of the 29th International Society of Ocean and Polar Engineering Conference, 2, 2383 - 2387, English

  [Refereed]

  International conference proceedings


• Effects of angle and interface friction of buried pipe bend on lateral resistance force

  Kawamura, M, Sawada, Y, Ohta, Y, Ono, K, KAWABATA TOSHINORI

  International Society of Ocean and Polar Engineering, Jun. 2019, Proceedings of the 29th International Society of Ocean and Polar Engineering Conference, 2, 2378 - 2382, English

  [Refereed]

  International conference proceedings


• Full scale investigation of GCL damage mechanisms in small earth dam retrofit applications under earthquake loading

  SAWADA YUTAKA, Nakazawa, H, Take, W.A, KAWABATA TOSHINORI

  Elsevier, 2019, Geotextiles and Geomembranes, 47(4) (4), 502 - 513, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• ベントナイト系遮水シートの設置方法がため池堤体の耐震生に与える影響

  NAKAZAWA HIROSHI, SAWADA YUTAKA, SHIGEMOTO RINTARO, FURUBAYASHI TOMOHIRO, TANIMOTO MIKIO, SHIBUYA SATORU, KAWABATA TOSHINORI, MORITA AKIHIRA, ODA TETSUYA, KAJIHARA KOICHI, INOUE TAKAHITO

  Jan. 2019, 防災科学技術研究所研究資料, (425) (425), 102, Japanese

  Research institution


• ジオグリッドを用いた埋設管スラスト防護工法の形状寸法が付加抵抗力に与える影響について

  太田 遥子, 澤田 豊, 小野 耕平, 河村 未奈, KAWABATA TOSHINORI

  国際ジオシンセティックス学会日本支部, Dec. 2018, Geosynthetics Engineering Journal, (33) (33), 55 - 60, Japanese

  [Refereed]

  Scientific journal


• Seismic behavior and numerical simulation of earth-fill dam with geosynthetic clay liner in shaking table test

  Kyungbeom Jeong, Satoru Shibuya, Satsuki Kataoka, Jemin Baek, Toshinori Kawabata, Yutaka Sawada, Hiroshi Nakazawa

  International Geosynthetics Society, Sep. 2018, 11th International Conference on Geosynthetics 2018, ICG 2018, 4, 2935 - 2942, English

  [Refereed]

  International conference proceedings


• Lateral force–displacement prediction for buried pipe under different effective stress condition

  Kohei Ono, Yu Yokota, Yutaka Sawada, Toshinori Kawabata

  Taylor and Francis Ltd., Jul. 2018, International Journal of Geotechnical Engineering, 12(4) (4), 420 - 428, English

  [Refereed]

  Scientific journal


• Fluid Coupled-DEM Simulation of Lateral Loading Experiment for Buried Pipe in Saturated Sand

  Kohei Ono, Kenji Terada, Yutaka Sawada, Hoe I. Ling, Toshinori Kawabata

  Springer US, Jun. 2018, Transportation Infrastructure Geotechnology, 5(2) (2), 93 - 113, English

  [Refereed]

  Scientific journal


• 内圧及び外圧作用時の低剛性埋没管の円周方向ひずみの評価

  有吉 充, 泉 明良, KAWABATA TOSHINORI

  公益社団法人 農業農村工学会, Jun. 2018, 農業農村工学会論文集No.306(86-1), Japanese

  [Refereed]

  Scientific journal


• Model Experiments on Influence of the Bending Angles on Lateral Resistance Acting on Buried Pipe Bends

  Ohta,Y, Sawada,Y, Ono,K, Hoe I.Ling, KAWABATA TOSHINORI

  International Society of Ocean and Polar Engineering, Jun. 2018, Proceedings of the 28th International Society of Offshore and Polar Engineering Conference, 2018-June, 589 - 593, English

  [Refereed]

  International conference proceedings


• 開水路継ぎ目部近傍の土砂吸い出し過程に関する実験的検討

  竹川 尚希, SAWADA YUTAKA, KAWABATA TOSHINORI

  公益社団法人 土木学会, Feb. 2018, 土木学会論文集B1(水工学), 74(4) (4), I_703 - I_708, Japanese

  [Refereed]

  Scientific journal


• Influence of liquefaction on scour behind coastal dikes due to tsunami overflow

  Naoki Takegawa, Yutaka Sawada, Kazuki Murai, Toshinori Kawabata

  Taylor and Francis Ltd., Jan. 2018, International Journal of Geotechnical Engineering, 12(1) (1), 40 - 45, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• EFFECTS OF SHAPE DIMENSIONS OF THE LIGHTWEIGHT THRUST RESTRAINT METHOD FOR BURIED PIPE BEND ON ADDITIONAL LATERAL RESISTANCE

  Yoko OHTA, Yutaka SAWADA, Kohei ONO, Mina KAWAMURA, Toshinori KAWABATA

  Japan Chapter of International Geosynthetics Society, 2018, Geosynthetics Engineering Journal, 33, 55 - 60

  Scientific journal


• In Situ and Laboratory Testing of Small Diameter PVC Irrigation Pipes for Investigation of Fatigue Failure.

  Ariyoshi, M, Tanaka, Y, Izumi, A, KAWABATA TOSHINORI

  Jan. 2018, Transportation Infrastructure Geotechnology, English

  [Refereed]

  International conference proceedings


• Shear Strength Characteristics of Internal Bentonite Layer of Needle-Punched GCL Used in Small Earth Dams under Cyclic Loading

  R. Shigemoto, Y. Sawada, R. Maki, T. Kawabata

  American Society of Civil Engineers (ASCE), 2018, Geotechnical Special Publication, 2018-(293) (293), 365 - 372, English

  [Refereed]

  International conference proceedings


• Seismic performance of small earth dams with sloping core zones and geosynthetic clay liners using full-scale shaking table tests

  Yutaka Sawada, Hiroshi Nakazawa, Tetsuya Oda, Seita Kobayashi, Satoru Shibuya, Toshinori Kawabata

  Japanese Geotechnical Society, 2018, Soils and Foundations, 58(3) (3), 519 - 533, English

  [Refereed]

  Scientific journal

  Link to Kobe Univ. Repository (Kernel)


• ベントナイト系遮水シートとため池堤体土のせん断強度特性

  重元 凜太郎, SAWADA YUTAKA, 眞木 陸, KAWABATA TOSHINORI

  国際ジオシンセティックス学会日本支部, Nov. 2017, ジオシンセティックス論文集, 32, 73 - 80, Japanese

  [Refereed]

  Scientific journal


• 津波越流により生じる海岸堤防裏法尻の洗掘形状の簡易推定法

  竹川 尚希, SAWADA YUTAKA, KAWABATA TOSHINORI

   In the 2011 off the Pacific coast of Tohoku Earthquake, massive tsunami caused serious damage to coastal structures, such as coastal dikes and seawalls. One of the failure mechanisms of coastal dikes has been considered as local scour at landward toes of coastal dikes. Therefore, prediction of scour profile is indispensable in order to propose scour countermeasures and design of coastal dikes. In the present study, hydraulic model experiments were conducted to clarify scour process at landward toes of coastal dikes. Furthermore, on the basis of the present experimental results and previous studies, two predictive equations for scour profile behind coastal dikes were examined. It has been revealed that the predictive equation approximately agrees with the results of the experiments and the field survey.

  公益社団法人土木学会, Oct. 2017, 土木学会論文集B2（海岸工学）, 73(2) (2), I_1045 - I_1050, Japanese

  [Refereed]

  Scientific journal


• 実大規模震動実験におけるため池堤体の残留変形調査

  中澤 博志, SAWADA YUTAKA, 小田 哲也, 古林 智宏, 小林 成太, KAWABATA TOSHINORI, SHIBUYA SATORU, KATAOKA SATSUKI, 山下 拓三

   In this study, full-scale shaking table tests for embankments were carried out in order to estimate the earthquake resistance of small earth dams with geosynthetics clay liner for a short supply of clay material which requires sloping core zones at many sites. In the experiment, two types of embankments of 3 m of height were constructed in large soil containers respectively. The dynamic behaviors of embankments were observed by sinusoidal wave of maximum acceleration of 471 Gal. After shaking, several longitudinal cracks without water leakage were occurred at the crest of the embankment with geosynthetics clay liner. Finally, a series of the three-dimensional terrestrial laser measurements was tried to grasp the characteristics on the residual deformations of the embankments. As a result, it was found out that some locations and forms of the cracks can be confirmed relatively. Therefore, it was indicated that three-dimensional terrestrial laser scanner is effective as a utility of the measurement method.

  公益社団法人土木学会, Sep. 2017, 土木学会論文集A1（構造・地震工学）, 73(4) (4), I_815 - I_826, Japanese

  [Refereed]

  Scientific journal


• Model Experiment on Earth Pressure Acting on Buried Pipe during Sheet Pile Extraction

  Terada, K, Takahara, S, Ono, K, SAWADA YUTAKA, KAWABATA TOSHINORI

  ASCE, Aug. 2017, Proceedings of the Pipelines 2017 Conference, English

  [Refereed]

  International conference proceedings


• Effect of Scour Protections against Tsunami Overflow at a Landward Toe of Coastal Dikes

  Takegawa, N, SAWADA YUTAKA, KAWABATA TOSHINORI

  International Society of Offshore and Polar Engineering, Jun. 2017, Proceedings of the 27th International Society of Ocean and Polar Engineering Conference, 976 - 980, English

  [Refereed]

  International conference proceedings


• 動水勾配と載荷速度の変化が埋設管の水平抵抗力に与える影響

  小野 耕平, 横田 木綿, 井谷 昌功, SAWADA YUTAKA, KAWABATA TOSHINORI

  公益社団法人農業農村工学会, Feb. 2017, 農業農村工学会論文集, (304) (304), I_29 - I_35, Japanese

  [Refereed]

  Scientific journal


• An Experimental Study on Earthquake Resistance of Small Earth Dam-Estimation of Earthquake-Resistant Performance of Embankments with Sloping Core Zone and Geosynthetic Clay Liner-

  NAKAZAWA HIROSHI, SAWADA YUTAKA, FURUBAYASHI TOMOHIRO, ODA TETSUYA, KOBAYASHI SEITA, KAWABATA TOSHINORI, SHIBUYA SATORU, KATAOKA SATSUKI, YAMASHITA TAKUZO, KAJIHARA KOICHI, INOUE TAKAHITO

  Feb. 2017, 防災科学技術研究所研究資料, (410) (410), 87p, Japanese

  [Refereed]

  Research institution


• Lateral Loading Experiments for Pipe-Soil Interactions in Liquefied Sandy Soil

  Kohei Ono, Yu Yokota, Yoko Ohta, Yutaka Sawada, Hoe I. Ling, Toshinori Kawabata

  American Society of Civil Engineers (ASCE), 2017, Pipelines 2017: Planning and Design - Proceedings of Sessions of the Pipelines 2017 Conference, 44 - 53, English, International magazine

  [Refereed]

  International conference proceedings


• 地盤のせん断変形を受ける更生埋設管の変形挙動について

  泉 明良, 三木 太貴, SAWADA YUTAKA, KAWABATA TOSHINORI

  In recent years, many irrigation pipelines require a repair work by the deterioration. The aging pipelines have a risk for a leakage, a decrease of a capacity of flow and a serious damage during earthquake. As the repair work for aging pipelines, pipe rehabilitation has been used. However, the dynamic behavior of the rehabilitated pipe during earthquake has not been cleared. In this study, in order to clarify an influence of a shear deformation of grounds on the behavior of the buried rehabilitated pipe, shear tests and DEM analyses were conducted. As the results, it was revealed that the degree of the influence of the aging host pipe on the deformation of the rehabilitated pipe was divided into three types according to the damage levels of the host pipe and the relative density of the backfill material. In addition, the prediction equation on the deformation of the rehabilitated pipe to the shear deformation was proposed in consideration of the damage levels of the host pipe, the deformation modulus of the backfill material and the bending ring stiffness of the rehabilitated pipe.

  公益社団法人 農業農村工学会, Dec. 2016, 農業農村工学会論文集, 84(303) (303), I_241 - I_249, Japanese

  [Refereed]

  Scientific journal


• 前刃金工法および遮水シート工法により改修されたため池堤体の実大規模振動実験

  SAWADA YUTAKA, 中澤 博志, KATAOKA SATSUKI, 小林 成太, 小田 哲也, 古林 智宏, SHIBUYA SATORU, 山下 拓三, 谷 和夫, 梶原 浩一, KAWABATA TOSHINORI

  ジオシンセティックス学会日本支部, Dec. 2016, ジオシンセティックス論文集, 31, 167 - 174, Japanese

  [Refereed]

  Scientific journal


• 階段状に設置したベントナイト系遮水シートがため池堤体の地震時挙動におよぼす影響

  小田 哲也, SAWADA YUTAKA, 中澤 博志, 小林 成太, SHIBUYA SATORU, KAWABATA TOSHINORI

  ジオシンセティックス学会日本支部, Dec. 2016, ジオシンセティックス論文集, 31, 175 - 182, Japanese

  [Refereed]

  Scientific journal


• 液状化地盤のせん断抵抗力に与えるジオグリッドの補強効果に関する埋設管の水平載荷実験

  小野 耕平, 横田 木綿, SAWADA YUTAKA, KAWABATA TOSHINORI

  ジオシンセティックス学会日本支部, Dec. 2016, ジオシンセティックス論文集, 31, 261 - 268, Japanese

  [Refereed]

  Scientific journal


• 遮水シートで改修されたため池堤体の耐震性

  SHIBUYA SATORU, KAWABATA TOSHINORI

  Nov. 2016, ジオシンセティックス技術情報, 32(3) (3), 25‐34,1(1), Japanese

  Symposium


• Model experiment and numerical simulation on influence of liquefaction on scour at a landward toe of coastal dykes due to tsunami overflow

  Takegawa, N, SAWADA YUTAKA, Murai, K, KAWABATA TOSHINORI

  CRC Press, Sep. 2016, Proceedings of the 8th International Conference on Scour and Erosion, 343 - 348, English

  [Refereed]

  International conference proceedings


• Long-Term behavior of grlass fiber reunified polyethylene

  Tokiyoshi,M, Vanspeybroeck,P, Inoue,K, Fullgrabe,S, Kuriyama,T, KAWABATA TOSHINORI, Hinobayashi,J

  Sep. 2016, Proceedings of the 18th Plastic Pipes Conference, English

  [Refereed]

  International conference proceedings


• Lateral Loading Experiments for Buried Pipe in Reinforced Ground with Geogrids under Different Hydraulic Gradient

  Ono, K, Yokota, Y, SAWADA YUTAKA, KAWABATA TOSHINORI

  Sep. 2016, Proceedings of the 6th European Geosynthetics Congress, 1322 - 1331, English

  [Refereed]

  International conference proceedings


• Lateral Loading Test for Buried Pipe under Different Hydraulic Gradient

  Ono, K, Yokota, Y, SAWADA YUTAKA, KAWABATA TOSHINORI

  International Society of Offshore and Polar Engineering, Jun. 2016, Proceedings of the 26th International Society of Ocean and Polar Engineering Conference, 2016-January, 664 - 669, English

  [Refereed]

  International conference proceedings


• Influence of Effective Stress of Soil on Scour at Landward Toe of Coastal Dykes under Tsunami Overflow

  SAWADA YUTAKA, Takegawa, N, Murai, K, KAWABATA TOSHINORI

  International Society of Offshore and Polar Engineering, Jun. 2016, Proceedings of the 26th International Society of Ocean and Polar Engineering Conference, 2016-January, 843 - 847, English

  [Refereed]

  International conference proceedings


• Axial Behavior of Buried Rehabilitated Pipe in Liquefaction Ground

  Akira Izumi, Kohei Ono, Syo Takahara, Yutaka Sawada, Toshinori Kawabata

  Springer US, Jun. 2016, Transportation Infrastructure Geotechnology, 3(2) (2), 60 - 73, English

  [Refereed]

  Scientific journal


• Development of Biodegradable Resin Concrete toward Geo-Environmental Load Reduction

  Suzuki,M, Kotake,N, KAWABATA TOSHINORI

  May 2016, Proc. of the 15th Japan-Korea-France-Canada Joint Seminar on Geoenvironmental Engineering, English

  [Refereed]

  International conference proceedings


• Centrifugal Modeling of Gabion Facing Geosynthetic Reinforced Soil Retaining Walls

  Xu,Lei, Ling, Hoe I, Collin, James G, Han, Jie, Leshchinsky, Dov, Tanyu, Burak, Li, Liming, KAWABATA TOSHINORI, Rimoldi, Pietro

  ASCE, Apr. 2016, Proceedings of the International Conference, Pipeline 2015, English

  [Refereed]

  International conference proceedings


• 同一環剛性を有する管厚の異なるたわみ性埋設パイプの動的挙動特性

  泉明良, 日野林譲二, 毛利栄征, 有吉充, 河端俊典

  Mar. 2016, 農業農村工学会論文集, 84(2) (2), Ⅰ_113 - 120

  [Refereed]


• 液状化地盤における管路屈曲部の設計に関する検討

  井谷昌功, 藤田信夫, 毛利栄征, 河端俊典

  Mar. 2016, 農業農村工学会論文集, 84(2) (2), Ⅳ_5 - 6

  [Refereed]


• 地盤のせん断変形がたわみ性埋設管のたわみ量に与える影響

  泉 明良, SAWADA YUTAKA, 三木 太貴, KAWABATA TOSHINORI

  A deformation behavior of a buried flexible pipe used as an irrigational pipeline is not substantially clear during earthquake. In this study, in order to clarify an influence of a deformation of ground on the dynamic behavior of the buried flexible pipe, cyclic shear tests for buried flexible pipes having an outside diameter of 140 mm and 150 mm in the laminar box and DEM analyses were conducted. As the results, it was found that the 45-225 and 135-315 degrees deflection of the buried flexible pipe were larger than the 0-180 deg. (vertical) and 90-270 deg. (horizontal) deflection. This tendency became remarkable as the relative density of the backfill material increased. It was indicated that the relationships between the deflection of the pipe and the shear strain obtained from the analyses results could be in good agreement with the test results. In addition, the buried flexible pipe was deformed due to the contact force acted on the oblique direction of the pipe during earthquake.

  公益社団法人土木学会, Feb. 2016, 土木学会論文集A2（応用力学）, 71(2) (2), I_869 - I_877, Japanese

  [Refereed]

  Scientific journal


• 液状化地盤中の管路屈曲部の動的挙動に関する検討

  井谷 昌功, 藤田 信夫, 有吉 充, 毛利 栄征, KAWABATA TOSHINORI

  公益社団法人農業農村工学会, Feb. 2016, 農業農村工学会論文集, (301) (301), 1 - 8, Japanese

  [Refereed]

  Scientific journal


• Seismic behavior and numerical simulation of a small-sized earth-fill with bentonite sheet observed in shaking table test

  Jeong Kyung-Beom, Shibuya Satoru, Kataoka Satsuki, Baek Je-Min, Kawabata Toshinori, Sawada Yutaka

  Recently, a bentonite sheet is often employed in deteriorated earth-fill dams for preventing water leakage. However, it is concerned that a slipping type of failure may occur at the boundary between the bentonite sheet and the fill material in the event of seismic attack. In this paper, seismic behavior of a small-sized earth fill model inside which a bentonite sheet was mantled was examined in shaking table test, and it was simulated by numerical analysis. It is manifested in the shaking table test that a shallow slip surface developed in the fill above the bentonite sheet, and no harmful deformation was observed along the bentonite sheet when subjected to seismic motion, noting also that the shallow failure was successfully simulated by pseudo static limit equilibrium analysis. In addition, it was confirmed that the seismic response of the model earth-fill was unaffected by the existence of bentonite sheet as examined by FEM seismic numerical simulations.

  The Japanese Geotechnical Society, 2016, Japanese Geotechnical Society Special Publication, 4(2) (2), 27 - 30, English, International magazine

  [Refereed]

  International conference proceedings


• Seismic behavior and numerical simulation of a full-scale earth-fill dam in shaking table test

  JEONG KYUNGBEOM, SHIBUYA SATORU, KATAOKA SATSUKI, BAEK JEMIN, KAWABATA TOSHINORI, SAWADA YUTAKA, 中澤 博志

  地盤工学会, 2016, 地盤工学シンポジウム論文集, 60, 249 - 254, Japanese

  [Refereed]

  Symposium


• 生分解性樹脂コンクリートの統計的劣化予測

  鈴木麻里子, 久保京子, 河端俊典

  コンクリート工学会, Jan. 2016, コンクリート工学会論文集, 27, 1 - 6, Japanese

  [Refereed]

  Scientific journal


• PBSA, PLAを用いた生分解性樹脂コンクリートの劣化比較

  鈴木麻里子, 久保京子, 河端俊典

  コンクリート工学会, Jan. 2016, コンクリート工学会論文集, 27, 7 - 12, Japanese

  [Refereed]

  Scientific journal


• Model Experiments for the Mechanical Behavior of Buried Rehabilitated Pipes under Eccentric Loading

  S. Takahara, K. Ono, Y. Sawada, T. Kawabata

  2016, PIPELINES 2016 - OUT OF SIGHT, OUT OF MIND, NOT OUT OF RISK, 1698 - 1709, English, International magazine

  [Refereed]

  International conference proceedings


• DEM Analysis on the Mechanical Behavior of Buried Pipe during Sheet-Pile Extraction

  K. Terada, K. Ono, S. Takahara, T. Miki, Y. Sawada, T. Kawabata

  2016, PIPELINES 2016 - OUT OF SIGHT, OUT OF MIND, NOT OUT OF RISK, 1207 - 1217, English, International magazine

  [Refereed]

  International conference proceedings


• 水平載荷時の継手構造管路屈曲部の挙動メカニズム

  井谷 昌功, 藤田 信夫, YOKOTA YU, 有吉 充, 毛利 栄征, KAWABATA TOSHINORI

  The behavior of pipeline in liquefied ground is not fully elucidated. Therefore, the seismic design is not established systematically. The thrust force due to the bending angle and internal pressure constantly acts on the bend. The resistance for the thrust force is passive earth pressure behind the bend, but it is not considered that the passive earth pressure decreases when the liquefaction occurs. In this study, lateral loading tests were carried out in order to discuss the mechanical behavior of flexible joints pipeline with a bend in the liquefied ground. As a result, it was revealed that the horizontal resistance force decreases significantly, and the horizontal displacement of pipeline increases during liquefaction. In addition, it was confirmed that the numerical simulation modeled by beam and spring elements agreed well with the lateral loading tests.

  公益社団法人農業農村工学会, Dec. 2015, 農業農村工学会論文集, 83(300) (300), 177 - 183, Japanese

  [Refereed]

  Scientific journal


• 補強体を有する混成堤の津波外力作用下の安定性に関する解析的検討

  SAWADA YUTAKA, 三宅 達夫, 宮本 順司, KAWABATA TOSHINORI

  公益社団法人土木学会, Nov. 2015, 土木学会論文集C（地圏工学）, 71(4) (4), 352 - 364, Japanese

  [Refereed]

  Scientific journal


• MPS法を用いた津波による海岸構造物背後地盤の洗掘に関する数値解析

  村井 和樹, SAWADA YUTAKA, KAWABATA TOSHINORI

  公益社団法人地盤工学会関西支部, Nov. 2015, Kansai Geo-Symposium 2015 論文集, 7 - 12, Japanese

  [Refereed]

  Symposium


• Numerical Analysis on Stability of Caisson-Type Breakwaters under Tsunami-Induced Seepage

  Yutaka Sawada, Michio Miyake, Junji Miyamoto, Toshinori Kawabata

  Springer US, Sep. 2015, Transportation Infrastructure Geotechnology, 2(3) (3), 120 - 138, English

  [Refereed]

  Scientific journal


• Centrifuge Modeling for Mechanical Behavior of Liners in Damaged Host Pipes

  Kohei Ono, Yusuke Sonoda, Yutaka Sawada, Hoe I. Ling, Toshinori Kawabata

  Springer US, Sep. 2015, Transportation Infrastructure Geotechnology, 2(3) (3), 139 - 154, English

  [Refereed]

  Scientific journal


• 生分解性樹脂コンクリートの推進管への適用

  SUZUKI MARIKO, 久保京子, KAWABATA TOSHINORI

  公益社団法人農業農村工学会, Apr. 2015, IDRE Journal, (296) (296), Ⅳ5 - 6, Japanese

  [Refereed]

  Scientific journal


• 推進工法適用へ向けた生分解性樹脂コンクリート管の力学的検討

  鈴木麻里子, 久保京子, 河端俊典

  Apr. 2015, 農業農村工学会論文集, (296) (296), Ⅳ - 5-Ⅳ-6, Japanese

  [Refereed]

  Scientific journal


• Effect of Different Exposure Conditions on Degradation Characteristics of Biodegradable Resin Mortar

  Suzuki, M, Kubo, K, Suzuki, T, Sawada, Y, Kawabata, T

  公益社団法人農業農村工学会, Apr. 2015, JIDRE Journal, I_19 - I_24, English

  [Refereed]

  Scientific journal


• 農業用パイプラインにおける漏水事故実態に関する調査研究−琵琶湖周辺の幹線系パイプラインの事例—

  井谷昌功, 西山竜朗, 井端洸, KAWABATA TOSHINORI

  日本雨水学会, Feb. 2015, Journal of Rainwater Catchment Systems, 20(2) (2), 61 - 66, Japanese

  [Refereed]

  Scientific journal


• 横波共振法を適用した農業用パイプラインの機能診断に関する研究

  茨田 匠, 井谷 昌功, SAWADA YUTAKA, KAWABATA TOSHINORI

  Recently, the irrigation pipelines gradually lose its performance due to the deterioration and other factors, and the replacement or the improvement are required. It is necessary to develop a diagnosis technique which is advantage in the cost in order to maintain the performance of the pipeline. In the present study, in order to discuss the application of a shear wave resonating method to the diagnosis technique for ductile iron pipes, several experiments were carried out using an examination object in which the corrosion was simulated. As a result, it is found that the corrosion can be detected by comparing the measurement wave form of normal part and damage part. In addition, in order to evaluate the deterioration degree, the classification method has been proposed on the basis of the power spectrum by the plurality of frequency bands.

  公益社団法人農業農村工学会, Feb. 2015, 農業農村工学会論文集, 83(295) (295), 31 - 38, Japanese

  [Refereed]

  Scientific journal


• 液状化地盤における埋設管の水平抵抗力に関する模型実験

  井谷 昌功, 藤田 信夫, SAWADA YUTAKA, 有吉 充, 毛利 栄征, KAWABATA TOSHINORI

  Generally, the damage of pipeline becomes heavy when liquefaction occurs. However, the seismic behavior of pipeline in the liquefied ground is unknown enough. Therefore, the seismic design are not established systematically. In particular, the thrust force due to internal pressure constantly acts on pipe bend of the pressure line, such as irrigation pipelines. The resistance for the thrust force is passive earth pressure behind the pipe bend, but it is not considered that the passive earth pressure decreases when the liquefaction occurs. In the present study, model experiments were carried out in order to discuss the mechanical behavior of the pipe bend laterally loaded in the liquefied ground. As a result, it was revealed that the horizontal displacement of the pipe is increase and the horizontal resistance force is decrease significantly during liquefaction. In addition, it was found that the coefficient of subgrade reaction in the liquefied ground was reduced to 1/7 to 1/8 compared to that in non-liquefied ground.

  公益社団法人農業農村工学会, Feb. 2015, 農業農村工学会論文集, 83(295) (295), 77 - 83, Japanese

  [Refereed]

  Scientific journal


• DEM analyses on L-shaped breakwaters subjected to lateral loads

  Y. Sawada, T. Kawabata

  2015, Computer Methods and Recent Advances in Geomechanics, 1779 - 1784, English

  [Refereed]

  International conference proceedings


• Shaking Table Test for Axial Behavior of Buried Inner Rehabilitated Pipes Affected by Aging Pipes in Liquefied Ground

  A. Izumi, K. Ono, S. Takahara, Y. Sawada, M. Ariyoshi, Y. Mohri, T. Kawabata

  American Society of Civil Engineers (ASCE), 2015, Pipelines 2015: Recent Advances in Underground Pipeline Engineering and Construction - Proceedings of the Pipelines 2015 Conference, 316 - 324, English

  [Refereed]

  International conference proceedings


• 防波堤背後の洗掘が水平抵抗力に及ぼす影響

  SAWADA YUTAKA, KAWABATA TOSHINORI

  土木学会, Oct. 2014, 土木学会論文集B3（海洋開発）, 70(2) (2), 510 - 515, Japanese

  [Refereed]

  Scientific journal


• 同一環剛性を有する管厚の異なるたわみ性パイプの力学挙動特性

  泉明良, 澤田豊, 日野林譲二, 毛利栄征, 有吉充, 河端俊典

  Aug. 2014, 農業農村工学会論文集, 82(4) (4), 49 - 57

  [Refereed]


• 同一環剛性を有する管厚の異なるたわみ性パイプの力学挙動特性

  泉 明良, SAWADA YUTAKA, 日野林 譲二, 毛利 栄征, 有吉 充, KAWABATA TOSHINORI

  公益社団法人 農業農村工学会, Aug. 2014, 農業農村工学会論文集, (292) (292), 231 - 239, Japanese

  [Refereed]

  Scientific journal


• Mechanical Approach to Eco-Frendly Biodegradable Resin Concrete

  鈴木麻里子, 鈴木武志, 河端俊典

  コンクリート工学会, Jul. 2014, Concrete Reseach and Technology, Vol.25, 119 - 124, Japanese

  [Refereed]

  Scientific journal


• 既設老朽管の損傷レベルが更生管力学挙動に与える影響

  SAWADA YUTAKA, 園田 悠介, 小野 耕平, INOUE KAZUYA, 毛利 栄征, 有吉 充, KAWABATA TOSHINORI

  近年，耐用年数を迎える農業用管路の増加に伴い，非開削での施工が可能な管路更生工法の採用が進展している。しかしながら，更生管の力学挙動は未解明で，設計手法も確立されていない現状にある。更生工法では，老朽化した既設管を撤去せずに管路を更新するため，半永久的に更生管外周に既設管が残存する。本研究では，既設管損傷レベルと荷重条件を変化させた土中埋設実験を実施し，既設管が更生管力学挙動に与える影響について検討した。その結果，既設管損傷レベルの進行に伴い，更生管のたわみが増大することが明らかになった。また，損傷状態によっては，既設管と更生管が点接触することで，局所的に卓越したひずみが発生することがわかった。さらに，地表面偏心荷重の場合，ひずみが卓越する箇所が損傷レベルにより異なることが明らかになった。

  農業農村工学会, Jun. 2014, 農業農村工学会論文集, (291) (291), 25 - 31, Japanese

  [Refereed]

  Scientific journal


• Mechanical Characteristics of Environmetally-friendly Biodegradable Resin Concrete

  Suzuki, M, Kubo, K, SAWADA YUTAKA, KAWABATA TOSHINORI

  Jun. 2014, Cocrete Innovation Conference 2014, 7pages, English

  [Refereed]

  International conference proceedings


• Finite Element Analyses on Mechanical Behavior of Inner Rehabilitated Pipes Affected by Outer Aging Pipes

  Ono, K, SAWADA YUTAKA, Izumi, A, Miki, T, Sonoda, Y, INOUE KAZUYA, KAWABATA TOSHINORI, Ligh, H. I, Hinobayashi, J

  Jun. 2014, Proceedings of the 24th International Society of Offshore and Polar Engineering Conference, 709 - 714, English

  [Refereed]

  International conference proceedings


• Pore Water Pressure and Liquefaction in Saturated Sand Bed Induced by Tsunami

  SAWADA YUTAKA, Miyake, M, Sumida, H, KAWABATA TOSHINORI

  Apr. 2014, IDRE Journal, (290) (290), 55 - 62, English

  [Refereed]

  Scientific journal


• Lateral Behavior of L-Shaped Breakwaters Subjected to Scour

  SAWADA YUTAKA, KAWABATA TOSHINORI

  Research Center for Urban Safety and Security, Kobe University, Mar. 2014, Report of Research Center for Urban Safety and Security, 18, 198 - 202, English

  Research institution


• Influences of Damage Levels of Outer Aging Pipes on Mechanical Behavior of Rehabilitated Pipes

  SAWADA Yutaka, SONODA Yusuke, ONO Kohei, INOUE Kazuya, MOHRI Yoshiyuki, ARIYOSHI Mitsuru, KAWABATA Toshinori

  Recently, trenchless rehabilitation methods for aging irrigation pipes are often used. In this method, a new pipe is inserted into an aging pipe. Therefore, the rehabilitated pipeline consists of the outer aging pipe and the inner rehabilitated pipe. However, the mechanical influences of the damaged outer pipes on the inner rehabilitated pipes are not clear. In the present study, in order to reveal the influences, model experiments were conducted under the different damage levels of the aging pipe and loading positions. Experimental results indicate that the deflection of the rehabilitated pipe increases according to the damage level of the aging pipe. In addition, the strain concentration occurs at the top and the bottom of the rehabilitated pipe due to the point contact of the edge of the aging pipe. It is also found that the deflection and the strain distribution of the rehabilitated pipe under the eccentric load are significantly affected by the damage level of the aging pipe.

  The Japanese Society of Irrigation, Drainage and Rural Engineering, 2014, Journal of the Agricultural Engineering Society, Japan, 82(3) (3), 157 - 163, Japanese


• Revisiting Nigawa landslide of the 1995 Kobe earthquake

  H. Ling, H. I. Ling, T. Kawabata

  2014, GEOTECHNIQUE, 64(5) (5), 400 - 404, English

  [Refereed]

  Scientific journal


• Centrifuge model test for buried inner rehabilitated pipes affected by aging pipes with different damage levels

  K. Ono, K. Inoue, Y. Sawada, A. Izumi, Y. Sonoda, T. Miki, Y. Mohri, H. I. Ling, L. Li, J. Hinobayashi, T. Kawabata

  American Society of Civil Engineers (ASCE), 2014, Pipelines 2014: From Underground to the Forefront of Innovation and Sustainability - Proceedings of the Pipelines 2014 Conference, 1040 - 1048, English

  [Refereed]

  International conference proceedings


• 基床部の乱れがたわみ性埋設管の力学挙動に与える影響

  KAWABATA TOSHINORI

  In order to clarify the behavior of buried pipe on the non-uniform bedding, experiments and 3-dimentional finite element analyses were conducted. By removing the soil from the valves of the bottom of test pit after backfilling uniformly, loose area was made in the ground. In the analysis, different input parameters made it possible to simulate the non-uniform ground. The pipe behavior was monitored at the three cross sections. Two sections are surrounded by the loosened ground locally. Another is between former two sections. From the results, it was clear that circumferential tensile strain acted on the part of the pipe by local swelling at the sections surrounded by the loosened ground. On the other hand, even circumferential tensile strain did not act but maximum shear strain increased at the middle section because of a kind of twisting force.

  土木学会, Sep. 2013, 土木学会論文集 A2(応用力学), 69(2) (2), 779 - 786, Japanese

  [Refereed]

  Scientific journal


• Mechanical Behavior of Buried Inner Rehabilitated Pipes Affected by Aging Pipes with Different Damage Level

  KAWABATA TOSHINORI, MOHRI YOSHIYUKI

  ISOPE, Jul. 2013, Proceedings of 23rd International Offshore and Polar Engineering Conference,, CD, 1 - 10, English

  [Refereed]

  International conference proceedings


• Experiments for Buried Flexible Pipe Supported by Non-Uniform Bedding

  KAWABATA TOSHINORI

  ISOPE, Jul. 2013, , Proceedings of 23rd International Offshore and Polar Engineering Conference,, CD, 1 - 10, English

  [Refereed]

  International conference proceedings


• The Influence of Non-uniform Bedding on the Mechanical Behavior of Buried Flexible Pipe,

  KAWABATA TOSHINORI, Ling Hoe I

  ASCE, Jun. 2013, Proceedings of International Conference for Pipeline Engineering, ASCE, Forth worth，TX, USA., CD, 1 - 12, English

  [Refereed]

  International conference proceedings


• ため池コア材への旧堤体土・底泥土再利用に関する一考察―兵庫県下における老朽化ため池を事例として―

  SUZUKI MARIKO, KAWABATA TOSHINORI, UCHIDA KAZUNORI

  農業農村工学会, Apr. 2013, 農業農村工学会論文集, 81(284) (284), 171 - 176, Japanese

  [Refereed]

  Scientific journal


• 環境に配慮した仮設資材開発のための基礎的研究-生分解性受信コンクリートの力学的検討-

  鈴木麻里子, 久保京子, 秦栄三, 中村誠, 吉村睦, 河端俊典

  Mar. 2013, 神戸大学都市安全研究センター研究報告, (17) (17), 309 - 313, Japanese

  [Refereed]

  Research institution

  Link to Kobe Univ. Repository (Kernel)


• 大口径パイプラインの地震被害 —被害状況と復旧の考え方—

  河端 俊典, 毛利 栄征

  Dec. 2012, 地盤工学ジャーナル, Vol.7, No.1, Japanese

  [Refereed]

  Scientific journal


• Lateral response of buried bend restrained by reinforcement using geogrid

  ARIYOSHI MITSURU, MOHRI YOSHIYUKI, KAWABATA TOSHINORI

  IGS Euro, Sep. 2012, Proceedings of Euro-Geo 5, Valencia, Spain, CD, 1 - 12, English

  [Refereed]

  International conference proceedings


• Dynamic behavior for buried flexible pipe subjected to ground shear deformation

  KAWABATA TOSHINORI, MOHRI YOSHIYUKI

  ISOPE, Jun. 2012, Proceedings of 22nd International Offshore and Polar Engineering Conference, ISOPE2012, Rhodes, Greece, Proceedings of 23rd International Offshore and Polar Engineering Conference,, CD, 1 - 10, English

  [Refereed]

  International conference proceedings


• Deposited Muddy Soil Reuse Technique Using Industrial Waste for Reconstruction of Small Earth fill Dams

  KAWABATA TOSHINORI

  ISOPE, Jun. 2012, Proceedings of 22nd International Offshore and Polar Engineering Conference, ISOPE2012, Rhodes, Greece, Proceedings of 23rd International Offshore and Polar Engineering Conference,, CD, 1 - 10, English

  [Refereed]

  International conference proceedings


• 老朽ため池改修における池底泥土の再利用に関する基礎研究

  SUZUKI MARIKO, KAWABATA TOSHINORI, UCHIDA KAZUNORI

  Mar. 2012, 神戸大学都市安全研究センタ-研究報告, (16) (16), 339 - 344, Japanese

  Research institution

  Link to Kobe Univ. Repository (Kernel)


• Dynamic behavior of buried flexible pipes of varying thickness using the shaking table test

  T. Kawabata, Y. Sonoda, Y. Mohri, M. Ariyoshi, Y. Iwasaki

  ASCE, 2012, Pipelines 2012: Innovations in Design, Construction, Operations, and Maintenance - Doing More with Less - Proceedings of the Pipelines 2012 Conference, CD, 1015 - 1024, English

  [Refereed]

  International conference proceedings


• 液状化地盤内における内圧管路屈曲部スラスト防護工法の動的挙動に関する検討

  KAWABATA TOSHINORI, SAWADA YUTAKA, 毛利 栄征, LING Hoe I

  Sep. 2011, 土木学会論文集C（地圏工学）, 67(3) (3), 399 - 406, Japanese

  [Refereed]

  Scientific journal


• Dynamic Behavior of Buried Circular Structures during Earthquake by Discrete Element Method

  KAWABATA TOSHINORI, LING Hoe I, MOHRI YOSHIYUKI

  ISOPE, Jun. 2011, , Proceedings of 21st International Offshore and Polar Engineering Conference, ISOPE2011, Hawaii, USA, CD, 1 - 10, English

  [Refereed]

  International conference proceedings


• 施工過程を考慮した埋設パイプの数値解析

  毛利栄征, 有吉充, 河端俊典, 田中忠次

  May 2011, 農業農村工学会誌, 79(5) (5), 333 - 336

  [Refereed]


• 個別要素法による埋設管路の水平載荷時挙動解析

  河端俊典, 澤田豊, 柏木歩, 毛利栄征, 有吉充

  May 2011, 農業農村工学会誌, 79(5) (5), 11 - 14

  [Refereed]


• 施工過程を考慮した埋設パイプの数値解析

  毛利栄征, KAWABATA TOSHINORI

  農業農村工学会, May 2011, 水土の知，農業農村工学会誌, Vol.79(No.5) (No.5), 7 - 10, Japanese

  [Refereed]

  Scientific journal


• 個別要素法による埋設管路の水平載荷挙動解析

  KAWABATA TOSHINORI, SAWADA YUTAKA, 柏木 歩, 有吉 充, 毛利 栄征

  農業農村工学会, May 2011, 水土の知, 79(5) (5), 337 - 340, Japanese

  [Refereed]

  Scientific journal


• Experiments and Numerical Analyses for Spillway on Small Earth Dam Subjected to Simple Shear

  KAWABATA TOSHINORI, LING Hoe I, MOHRI YOSHIYUKI

  ASCE, Mar. 2011, Proceedings of Geo-Frontiers, ASCE, Dallas, USA, CD, 1 - 10, English

  [Refereed]

  International conference proceedings


• Mechanical behavior of blended geo-materials for impermeable core zone of small earth-fill dams using recycled materials

  Kawabata Toshinori, Suzuki Mariko, Uchida Kazunori, Suzuki Takeshi

  2011, DEFORMATION CHARACTERISTICS OF GEOMATERIALS, PTS 1 AND 2, 762 - 765, English

  [Refereed]

  International conference proceedings


• 地盤のせん断変形を受ける補強洪水吐の挙動メカニズムの検討

  KAWABATA TOSHINORI

  At the 1995 Hyogo Nanbu Earthquake, the spillways on small earth dam were seriously damaged. In general, spillways are made of heavy concrete materials. Therefore, if they are subjected to earthquake vibration, they can be displaced and failed due to inertia force. The authors of the study proposed the quakeproof lightweight spillway with geogrids and verified its validity by shaking table test. However, the mechanism of reinforced effect remains to be clarified. In this study, the shear deformation of surrounding ground was focused and the cyclic simple shear test was conducted against the proposed method. The small-scale tests with aluminum rods layer and the numerical simulations using the 2-dimensional discrete element method were conducted and mechanism of spillway behavior was clarified by these approaches. Both experiments and analyses found that the spillway displacement is decreased by pull-out resistance of reinforcement materials.

  国際ジオシンセティックス学会日本支部, Dec. 2010, ジオシンセティックス論文集, 25, 127 - 132, Japanese

  [Refereed]

  Scientific journal


• ジオグリッドを用いたパイプライン浅埋設工法の水平載荷時挙動

  KAWABATA TOSHINORI

  Recently it is required that pipelines are buried shallowly because of reduction of construction cost. Thrust force is generated at a pipeline bend due to internal water pressure. It was found that the method of shallowly buried pipeline is effective against uplift force by buoyancy. However it is not clarified that the method is effective against lateral force as a thrust force. We proposed that the method of shallowly buried pipeline is installed at a pipeline bend and a series of lateral loading tests for shallowly buried bend were carried out in order to verify the effectiveness of this method. The results show that the lateral resistance in the proposed method was increased. In addition, numerical analyses by the two dimensional discrete element methods (DEM) were performed in order to clarify the resistance mechanism of the ground against lateral loading of pipe.

  Japan Chapter of International Geosynthetics Society, Dec. 2010, ジオシンセティックス論文集, 25, 27 - 32, Japanese

  [Refereed]

  Scientific journal


• 組み合わせ荷重下における部分拡幅杭の水平支持機構，

  KAWABATA TOSHINORI

  農業農村工学会, Jun. 2010, 農業農村工学会論文集, (267) (267), 17 - 25, Japanese

  [Refereed]

  Scientific journal


• ため池の新しい改修技術

  UCHIDA KAZUNORI, TANAKA TSUTOMU, KAWABATA TOSHINORI, ABE YUKICHI, MATSUI TARUMINE, TSUNETOMO EIICHI, HOUDA KIMIYOSHI

  Under construction.

  農業農村工学会, Jun. 2010, 水土の知 (農業農村工学会誌), 78(6) (6), 3 - 6, Japanese

  [Refereed]

  Scientific journal


• Vertical loading tests for buried flexible pipes with equivalent ring stiffness

  KAWABATA TOSHINORI, MOHRI YOSHIYUKI, Ling Hoe I, Ariyoshi Mitsuru

  ISOPE, Jun. 2010, Proceedings of 20th International Offshore and Polar Engineering Conference, ISOPE2010, Beijing, China, CD, 1 - 10, English

  [Refereed]

  International conference proceedings


• Lateral Loading Experiments on Thrust Restraint for Shallowly Buried Pipelines using Geogrids

  KAWABATA TOSHINORI, MOHRI YOSHIYUKI, Ling Hoe I

  ISOPE, Jun. 2010, Proceedings of 20th International Offshore and Polar Engineering Conference, ISOPE2010, Beijing, China, CD, 1 - 10, English

  [Refereed]

  International conference proceedings


• Creation of the Soil for Impermeable Core Zone for Earth-fill Dams

  KAWABATA TOSHINORI

  ISOPE, Jun. 2010, Proceedings of 20th International Offshore and Polar Engineering Conference, ISOPE2010, Beijing, China, CD, 1 - 10, English

  [Refereed]

  International conference proceedings


• Clarification of dynamic behavior of spillway on small earth dam subjected to simple shear

  KAWABATA TOSHINORI, MOHRI YOSHIYUKI

  ISOPE, Jun. 2010, Proceedings of 20th International Offshore and Polar Engineering Conference, ISOPE2010, Beijing, China, CD, 1 - 10, English

  [Refereed]

  International conference proceedings


• Field verification test for buried bend with lightweight thrust restraint using geogrid

  KAWABATA TOSHINORI, SAWADA YUTAKA, Izumi, A, Kashiwagi, A, Hanazawa, T, Okuno, S, Suzuki, M

  May 2010, Proceedings of the 9th International Conference on Geosynthetics, 1327 - 1332, English

  [Refereed]

  International conference proceedings


• 圧力曲管部スラスト防護工法の設計手法の提案

  SAWADA YUTAKA, KAWABATA TOSHINORI, 毛利栄征

  In bends of pressure pipelines, thrust forces generated due to internal pressure. Thrust forces act on the bends outward and tend to move the bends. In our previous study, a lightweight thrust restraint using geogrids and an anchor plate was proposed. In addition, the advantage of the proposed thrust restraint was verified by laboratory model tests and full-scale tests and the resistance mechanism was revealed by numerical analyses. Based on the failure mechanism, the maximum lateral resistance was evaluated by solving equations for the force equilibrium. In the present study, the lateral resistance of the proposed method was formulated considering the tensile characteristics of the geogrid. In addition, the calculated results were compared with the experimental results in order to verify the accuracy of the proposed formula. As results, it was revealed that the lateral resistance can be evaluated by the proposed formula. Furthermore the design method for the lightweight thrust restraint was suggested.

  農業農村工学会, Feb. 2010, 農業農村工学会論文集, 78(265) (265), 33 - 40, Japanese

  [Refereed]

  Scientific journal


• Lateral loading experiment on buried pipe using liquefied stabilized soil as backfill material for thrust restraint

  Toshinori Kawabata, Ayumu Kashiwagi, Yutaka Sawada, Satoshi Okuno, Hoe I. Ling, Yoshiyuki Mohri

  2010, Pipelines 2010: Climbing New Peaks to Infrastructure Reliability - Renew, Rehab, and Reinvest - Proc. of the Pipelines 2010 Conference, 386, 1244 - 1254, English

  [Refereed]

  International conference proceedings


• 補強流動化処理土を用いたパイプラインのスラスト防護工法に関する水平載荷模型実験

  KAWABATA TOSHINORI

  Liquefied stabilized soil has been used as a backfill material of pipelines recently. Methods for thrust restraint using liquefied stabilized soil are proposed in this paper. We expect that the liquefied stabilized soil is effective backfill material against the thrust force. Model pit tests using a model pipe with a diameter of 260 mm were carried out in order to examine the effect of the liquefied stabilized soil for the thrust restraint of the buried bend. The liquefied stabilized soil was applied to the passive area of the model pipe and dry silica sand was used as backfill material. The model pipe was laterally loaded at 1 mm/min after backfilling to simulate the thrust force. The lateral resistance and the lateral displacement of the model pipe were both measured.
  The results showed that the lateral resistance in case using the reinforcement material was increased. Furthermore,it was verified that the types of reinforcement materials influenced the lateral resistance.

  国際ジオシンセティックス学会日本支部, Dec. 2009, ジオシンセティックス論文集, Vol.24, 171 - 176, Japanese

  [Refereed]

  Scientific journal


• 補強材を用いた流動化処理土の脆性改善に関する曲げ試験

  KAWABATA TOSHINORI

  Thrust force is generated at pipeline bends due to internal pressure. The thrust forces can induce joint separations of the pipelines. In Case of high internal pressure, effective methods for thrust restraint are required.
  Methods for thrust restraint using liquefied stabilized soil reinforced with geosynthetics are proposed in this paper. We expect that the liquefied stabilized soil is an effective backfill material against the thrust force. In addition, the geosynthetics contributes to restrain the failure of the liquefied stabilized soil.
  In this paper, bending tests of the liquefied stabilized soil and image analyses by PIV(Particle Image Velocimetry) in order to verify the effect of the proposed methods for thrust restraint are discussed.

  国際ジオシンセティックス学会日本支部, Dec. 2009, ジオシンセティックス論文集, Vol.24, 91 - 96, Japanese

  [Refereed]

  Scientific journal


• ジオグリッドを用いた補強地盤の透水特性に関する実験的研究

  UCHIDA KAZUNORI, KAWABATA TOSHINORI, INOUE KAZUYA, MATSUDA KOUHEI, IWADE IKUMI, MIYAKAWA TOMOHIRO

  To evaluate the permeability of the ground reinforced with Geogrid, two types of tests; a triaxial permeability test and a large scale-pit test were conducted. The former is an element test which is not allowed to move soil particles under different conditions. The latter is a model test which is not allowed to move soil particles under different conditions. The results of the former test concluded that there is no difference between specimen reinforced with Geogrid and specimen unreinforced Geogrid when their compaction degrees were enough. The results of the latter test concluded that Geogrid restricts the movement of soil particles.

  国際ジオシンセティックス学会日本支部, Dec. 2009, ジオシンセティックス論文集, 24, 49 - 54, Japanese

  [Refereed]

  Scientific journal


• ジオグリッドを用いた軽量スラスト防護工法の現場実証実験

  KAWABATA TOSHINORI, SAWADA YUTAKA, 泉明 良, 柏木 歩, 花澤 貴文

  Thrust forces are generated at bend pipes due to internal water pressures. Generally concrete blocks are installed at bends to resist thrust forces. However, it has been reported that concrete blocks were one of the weak spots of the pipe system during earthquake. To improve the pipe system during earthquake, we previously proposed to replace concrete blocks with a lightweight thrust restraint technique using geogrids. In this study, the field test on the lightweight thrust restraint for buried bend pipe was carried out in order to examine the behavior of the bend pipe in the field. From the test results, it was found that the steel bend pipe with the proposed method performed satisfactorily under internal water pressures.

  ジオシンセティックス学会日本支部, Dec. 2009, ジオシンセティックス論文集, 24, 165 - 170, Japanese

  [Refereed]

  Scientific journal


• Large Scale Experiments on Lightweight Thrust Restraint for Buried Bend under Internal Pressure

  KAWABATA Toshinori, SAWADA Yutaka, MOHRI Yoshiyuki

  In bends, unbalanced force, which is called thrust force, is generated. Generally a concrete block is installed at the bend to provide the lateral resistance. However, the heavy concrete block is weak point in earthquake. In our previous study, a lightweight thrust restraint using geogrid was suggested and the effect was proved by laboratory small tests. In the present study, the large-scale tests for the new method were carried out in a large pit (8.4m×5.4m×4m), using a pipe bend having a diameter 300mm. As the results the lateral displacement of the bend was reduced by the proposed method. In addition, it was revealed that the effect was depended on the stiffness, length and installation of geogrid.

  The Japanese Society of Irrigation, Drainage and Rural Engineering, Aug. 2009, Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering, 77(4) (4), 439 - 445, Japanese


• 圧力管曲部の軽量スラスト防護工法の実規模埋設実験

  KAWABATA TOSHINORI, SAWADA YUTAKA, 毛利 栄征

  農業農村工学会, Aug. 2009, 農業農村工学会論文集, (262) (262), 111 - 117, Japanese

  [Refereed]

  Scientific journal


• Full scale loading tests of liquefied stabilized soil reinforced with geosynthetics

  KAWABATA TOSHINORI, Izumi, A, Kashiwagi, A

  Jun. 2009, Proceedings of 19th International Offshore and Polar Engineering Conference, 2(CD) (CD), English

  [Refereed]

  International conference proceedings


• Field Test on Lightweight Thrust Restraint for Buried Bend

  KAWABATA TOSHINORI, Hanazawa, T, SAWADA YUTAKA, Izumi, A, Kashiwagi, A, Shigenaka, A, Nanno, I

  Jun. 2009, Proceedings of 19th International Offshore and Polar Engineering Conference, 2, 62 - 66, English

  [Refereed]

  International conference proceedings


• Evaluation of Permeability for Reinforced Ground with Geogrid

  Uchida Kazunori, KAWABATA TOSHINORI, INOUE KAZUYA

  Jun. 2009, Proceedings of 19th International Offshore and Polar Engineering Conference, 2(CD) (CD), English

  [Refereed]

  International conference proceedings


• Evaluation of Lateral Resistance for Buried Conditions around Pipe with Horizontal Loading

  Kashiwagi, A, KAWABATA TOSHINORI

  Jun. 2009, Proceedings of 19th International Offshore and Polar Engineering Conference, 2(CD) (CD), English

  [Refereed]

  International conference proceedings


• Effect of pipe thickness on the behavior of flexible pipes with equivalent bending ring stiffness

  KAWABATA TOSHINORI, Shoda Daisuke, Izumi, A, INOUE KAZUYA, Mohri Yoshiyuki, Ariyoshi Mitsuru

  Jun. 2009, Proceedings of 19th International Offshore and Polar Engineering Conference, 2(CD) (CD), English

  [Refereed]

  International conference proceedings


• Distinct element analysis for group piles subjected to vertical loading

  KAWABATA TOSHINORI, Uchida Kazunori

  Jun. 2009, Proceedings of 19th International Offshore and Polar Engineering Conference, 2(CD) (CD), English

  [Refereed]

  International conference proceedings


• 個別要素法を用いた一次元上昇浸透流による粒子間力の低減と粒子移動特性の把握

  TANAKA TSUTOMU, HIROSE TETAUO, UCHIDA KAZUNORI, KAWABATA TOSHINORI, NAKASE HITOSHI

  Under construction.

  神戸大学都市安全研究センター, Mar. 2009, 神戸大学都市安全研究センター研究報告, (13) (13), 243 - 253, Japanese

  [Refereed]

  Research institution

  Link to Kobe Univ. Repository (Kernel)


• 軽量曲管スラスト防護工法による付加抵抗力算定式

  SAWADA YUTAKA, KAWABATA TOSHINORI, 毛利 栄征, UCHIDA KAZUNORI

  Thrust force acts on pipe bend due to internal pressure. In previous study, the lightweight thrust restraint with geogrid and anchor plate has proposed and the effect has been proved by conducting lateral loading model tests. In the present study, a series of model tests for changing depth of cover and length of restraint were carried out, and image analysis for the ground surface in the model tests were carried out to discuss the failure mechanism of proposed method. Furthermore, the failure mechanisms in front of the anchor plate were assumed and the additional resistances due to the proposed method were calculated based on the force equilibrium. In addition, in order to examine the accuracy for the proposed formula, calculated values were compared with experimental values. As the results, additional resistance from calculation was corresponding to experimental value.

  農業農村工学会, Feb. 2009, 農業農村工学会論文集, 77(259) (259), 43 - 51, Japanese

  [Refereed]

  Scientific journal


• Bending test for liquefied stabilized soil with steel rebar

  Toshinori Kawabata, Takafumi Hanazawa, Ayumu Kashiwagi, Akira Izumi, Motohiro Kanda, Yoshiyuki Mohri, Kazunobu Shimura

  2009, Proceedings of the International Offshore and Polar Engineering Conference, 101 - 104, English

  International conference proceedings


• ジオシンセティックスで補強した曲管部背面地盤の水平抵抗力に関する検討

  KAWABATA TOSHINORI, SAWADA YUTAKA, 柏木 歩, 毛利 栄征, UCHIDA KAZUNORI

  Thrust forces can be generated at the bend of a pipeline due to internal water pressure. Commonly, the thrust force is resisted by passive resistance acting on the bend. A concrete block can be installed at the bend when the thrust force is larger than the passive resistance. However, the heavy concrete block can become a weak point during an earthquake, because the concrete block moves largely due to inertia force. Therefore, new methods for thrust restraint are required.
  In this paper, new backfill methods for thrust restraint using geogrids are proposed. The new method comprised geogrids, installed in the passive area to improve the strength of the ground. In addition, gravel was used as backfill material in the passive area of the bend. In order to verify the effect of the proposed methods, lateral loading experiments were carried out using a model pipe with a diameter of 114 mm. The model pipe was backfilled with dry sand. After backfilling, the model pipe was laterally loaded at 0.5 mm/min. using a jack. The lateral resistance and lateral displacement acting on the model pipe were both measured. It was confirmed that the lateral resistance increased when using the proposed methods.
  In addition, numerical analyses (DEM) were performed to assess the resistance mechanism of the proposed methods. It was concluded that the lateral resistance was generated by the tensile force of the geogrid of the vertical side below the rupture surface.

  ジオシンセティックス学会日本支部, Dec. 2008, ジオシンセティックス論文集, 23, 127 - 132, Japanese

  [Refereed]

  Scientific journal


• ジオグリッドを用いた曲管部軽量スラスト防護工法の耐震性の検討

  KAWABATA TOSHINORI, SAWADA YUTAKA, 毛利 栄征, 泉明 良, 有吉 充, 平井 貴雄, 斉藤 喜久雄

  At a bend in a pressure pipeline, thrust force is generated by the bending angle and internal pressure. Generally a concrete block is installed around a bend. However, the concrete block is a weak point for an earthquake. Therefore, in our previous study, the lightweight thrust restrain using geogrids was suggested. Lateral loading tests, large scale tests and numerical analysis were conducted, and it is verified that the proposed restraint was effective against thrust force. In this study, four shaking table tests were conducted in order to verify the dynamic behavior of the proposed restraint. From the result, in case of the proposed restraint, the movement of the bend was restrained. In addition, using gravel around the geogrid, the lateral movement was extremely small.

  ジオシンセティックス学会日本支部, Nov. 2008, ジオシンセティックス論文集, 23, 133 - 138, Japanese

  [Refereed]

  Scientific journal


• Lateral Loading Tests for New Thrust Restraint Technique Using Liquefied Stabilized Soil with Geosynthetics

  KAWABATA TOSHINORI, SAWADA YUTAKA, Mohri, Y, Kashiwagi, A, Izumi, A, UCHIDA KAZUNORI

  Sep. 2008, Proceedings of the 4th European Geosynthetics Conference, English

  [Refereed]

  International conference proceedings


• Dynamic Behavior of Buried Pipe Bend with Lightweight Thrust Restraint during Liquefaction

  KAWABATA TOSHINORI, Mohri, Y, SAWADA YUTAKA, Izumi, A, Kashiwagi, A, Ariyoshi, M, UCHIDA KAZUNORI

  Sep. 2008, Proceedings of the 4th European Geosynthetics Conference, English

  [Refereed]

  International conference proceedings


• 部分拡幅杭の凸部底面に作用する極限支持力の算定

  KAWABATA TOSHINORI

  農業農村工学会, Aug. 2008, 農業農村工学会論文集, (第256号) (第256号), 1 - 8, Japanese

  [Refereed]

  Scientific journal


• Shaking Table Experiments on Lightweight Thrust Restraint for Buried Bend

  KAWABATA TOSHINORI, Mohri, Y, SAWADA YUTAKA, Izumi, A, Kashiwagi, A, Ariyoshi, M, UCHIDA KAZUNORI

  ASCE, Jul. 2008, Proceedings of International Conference of Pipeline 2008, 321, English

  [Refereed]

  International conference proceedings


• New Thrust Restraint Technique Using Geosynthetics for Buried Bend

  KAWABATA TOSHINORI, Mohri, Y, SAWADA YUTAKA, Kashiwagi, A, Izumi, A, UCHIDA KAZUNORI

  Jul. 2008, Proceedings of International Conference of Pipeline 2008, 321, English

  [Refereed]

  International conference proceedings


• Field Measurement and Numerical Analysis for Buried Large Diameter Steel Pipes

  KAWABATA TOSHINORI, Mohri, Y, Shoda DAisuke, Ariyoshi, M

  ASCE, Jul. 2008, Proceedings of International Conference on Pipeline 2008, CD, English

  [Refereed]

  International conference proceedings


• 埋設管の地震被害と耐震対策

  KAWABATA TOSHINORI

  農業農村工学会, Feb. 2008, 水土の知，農業農村工学会誌, Vol.76(No.2) (No.2), 3 - 6, Japanese

  [Refereed]

  Scientific journal


• Finite Element Analysis of Pipe Buried in Saturated Soil Deposit Subject to Earthquake Loading

  Ling Hoe I, Sun Lixum, Liu Huabei, Mohri Yoshiyuki, KAWABATA TOSHINORI

  Feb. 2008, Journal of Earthquake and Tsunami, Vol. 2(No. 1) (No. 1), 1 - 17, English

  [Refereed]

  Scientific journal


• Full-scale experiments on bend of pressure pipeline using geogrid

  Y. Sawada, T. Kawabata, K. Uchida, A. Totsugi, J. Hironaka

  2008, NEW HORIZONS IN EARTH REINFORCEMENT, 545 - 549, English

  [Refereed]

  International conference proceedings


• Dynamic behavior for lightweight spillway with geosynthetics on small earth dam

  Toshinori Kawabata, Kazunori Uchida, Tomohiro Kitano, Koji Watanabe, Yoshiyuki Mohri

  ASCE, 2008, Geotechnical Special Publication, CD(181) (181), English

  [Refereed]

  International conference proceedings


• The Effect of Liquefied Stabilized Soil with Geosynthetics against Thrust Force of Buried Bend

  Toshinori Kawabata, Yutaka Sawada, Ayumu Kashiwagi, Akira Izumi, Kazunori Uchida, Yoshiyuki Mohri, Hirofumi Nakashima

  2008, PROCEEDINGS OF THE EIGHTEENTH (2008) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 2, (2) (2), 660 - +, English

  [Refereed]

  International conference proceedings


• Lateral Loading Tests for Buried Bend with Light-Weight Thrust Restraint in Liquefaction

  Toshinori Kawabata, Yutaka Sawada, Akira Izumi, Ayumu Kashiwagi, Kazunori Uchida, Yoshiyuki Mohri, Mitsuru Ariyoshi

  2008, PROCEEDINGS OF THE EIGHTEENTH (2008) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 2, (2) (2), 768 - +, English

  [Refereed]

  International conference proceedings


• Closed form solution and finite element analysis for buried flexible pipe under high fills

  Toshinori Kawabata, Daisuke Shoda, Hoe I. Ling, Yoshiyuki Mohri

  Dec. 2007, SOILS AND FOUNDATIONS, 47(6) (6), 1101 - 1107, English

  [Refereed]

  Scientific journal


• ジオシンセティックにより補強したため池洪水吐の動的挙動

  KAWABATA TOSHINORI

  During 1995 Hyogoken-Nanbu earthquake, heavy concrete spillway on the embankment of small reservoir were significantly damaged. Especially, it was pointed out that some spillways were detached from the embankment because of the inertia force, and the incidents could be the cause of secondary disaster in downstream area in floods. In this paper, firstly, a series of shaking table tests on heavy rigid spillway model was discussed. As the result, newly proposed lightweight spillway by geogrid has earthquake resistance. Moreover backfill ground was integrated by geogrid and affects the displacement and deformation of spillway.

  国際ジオシンセティックス学会日本支部, Nov. 2007, ジオシンセティックス論文集, 22(Vol.22) (Vol.22), 243 - 248, Japanese

  [Refereed]

  Scientific journal


• ジオグリッドの伸び特性を考慮した圧力管曲部軽量スラスト防護工法の水平抵抗力算定手法

  SAWADA YUTAKA, 河端 俊典, 毛利 栄征, 内田 一徳

  In a bend of pressure pipeline, thrust force is generated due to internal pressure. A concrete block is used at the bend to resist the thrust force. However the concrete block will be a weak point during earthquake. In our previous study, a lightweight thrust restraint using geogrids and an anchor plate was proposed. In addition, the advantage of the proposed thrust restraint was verified from results of laboratory model tests and full-scale tests, and the resistance mechanism was examined by numerical analyses. Based on the failure mechanism, the maximum lateral resistance was evaluated by solving equations for force equilibrium. In the present study, the lateral resistance of the proposed method was formulated considering the elongation of geogrids. In addition, results calculated by the proposed formula were compared with experimental results. As the results, it was concluded that the lateral resistance can be evaluated by proposed formula.

  ジオシンセティックス学会日本支部, Nov. 2007, ジオシンセティックス論文集, 22, 253 - 258, Japanese

  [Refereed]

  Scientific journal


• Large Scale Tests of Buried Bend with Lightweight Thrust Restraint Method

  KAWABATA TOSHINORI, SAWADA YUTAKA, Ogushi, K, Totsugi, A, Hironaka, J, UCHIDA KAZUNORI

  Jul. 2007, Proceedings of 17th International Offshore and Polar Engineering Conference, 908 - 9013, English

  [Refereed]

  International conference proceedings


• Formulation for Lateral Resistance of Lightweight Thrust Restraint Considering Elongation of Geogrid

  SAWADA YUTAKA, Kawabata, T, Mohri, Y, Uchida, K

  Research Center for Urban Safety and Security, Kobe University, Mar. 2007, Report of Research Center for Urban Safety and Security, 11, 367 - 376, English

  Research institution


• Large scale tests of buried bend with lightweight thrust restraint using geosynthetics

  Toshinori Kawabata, Yutaka Sawada, Ken Ogushi, Atushi Totsugi, Junichi Hironaka, Kazunori Uchida

  2007, PROCEEDINGS OF THE SEVENTEENTH (2007) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 1- 4, PROCEEDINGS, 908 - +, English

  [Refereed]

  International conference proceedings


• Shaking table tests for lightweight spillway on small earth dam

  Toshinori Kawabata, Kazunori Uchida, Tomohiro Kitano, Koji Watanabe, Yoshiyuki Mohri

  2007, PROCEEDINGS OF THE SEVENTEENTH (2007) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 1- 4, PROCEEDINGS, 3562 - +, English

  [Refereed]

  International conference proceedings


• Analysis of ultimate bearing capacity for nodal base of pile with multi-stepped two diameters

  Daisuke Shoda, Kazunori Uchida, Toshinori Kawabata, Yuta Nadamoto

  2007, PROCEEDINGS OF THE SEVENTEENTH (2007) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 1- 4, PROCEEDINGS, CD, 1433 - +, English

  [Refereed]

  International conference proceedings


• Estimation of incremental resistance of lightweight thrust restraint for buried bend using geosynthetics

  Yutaka Sawada, Toshinori Kawabata, Yoshiyuki Mohri, Kazunori Uchida

  2007, PROCEEDINGS OF THE SEVENTEENTH (2007) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 1- 4, PROCEEDINGS, 914 - +, English

  [Refereed]

  International conference proceedings


• An evaluation of dispersion characteristics through a sandy mud soil layer

  K. Inoue, T. Kawabata, K. Uchida, T. Tanaka

  2007, PROCEEDINGS OF THE SEVENTEENTH (2007) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 1- 4, PROCEEDINGS, 530 - +, English

  [Refereed]

  International conference proceedings


• Large-Scale Experiments on Pipe Bend with Lightweight Thrust Restraint Using Geogrid

  Kawabata Toshinori

  Dec. 2006, Geosynthetics Engineering Journal, Vol.21, Japanese

  [Refereed]

  Scientific journal


• ジオグリッドを用いた圧力管スラスト防護工法の増加抵抗力算定手法

  SAWADA YUTAKA, KAWABATA TOSHINORI, 毛利 栄征, UCHIDA KAZUNORI

  農業用パイプラインなどの圧力管曲部には内圧と曲がり角度に応じて不平衡力が作用する.このスラスト力に対して,曲管にジオグリッドならびにアンカープレートを連結した耐震性に優れたスラスト対策工法を考案し,模型実験および数値解析から,その有効性ならびに抵抗メカニズムを明らかにしてきた.本論では,これらのメカニズムに基づいた増加抵抗力-変位関係式を提案し,そのパラメータである最大抵抗力と最大抵抗力発生変位の決定手法に関して検討を行った.さらに,提案された増加抵抗力-変位関係で模型実験をシミュレーションし,提案算定式の精度の検証を行った.その結果,提案式が高い精度を有していることが明らかになった.

  ジオシンセティックス学会日本支部, Dec. 2006, ジオシンセティックス論文集, 21, 97 - 104, Japanese

  [Refereed]

  Scientific journal


• ジオグリッドを用いた圧力管スラスト防護工法の実規模実験

  KAWABATA TOSHINORI, SAWADA YUTAKA, 大串 賢, 戸継 昭人, 弘中 淳市, 毛利 栄征, UCHIDA KAZUNORI

  圧力管曲部に作用するスラスト力に対して,一般的にコンクリートブロックが打設される.著者らは,耐震性を考慮し,ジオグリッドを用いた軽量なスラスト防護工法を考案した.また,その有効性を模型実験より確認した.本研究では,8.4m×5.4m×4mの大型土槽内で,口径300mmの90度曲管を含む,試験管路を作製し,実規模埋設実験を実施した.実験結果から当工法では,スラスト力に対する水平抵抗力の増加が見られた.また,ジオグリッドの剛性および長さを変えた実験から,それらの要素が増加抵抗力に影響を及ぼすことが確認された.

  ジオシンセティックス学会日本支部, Dec. 2006, ジオシンセティックス論文集, 21, 105 - 110, Japanese

  [Refereed]

  Scientific journal


• 強震時における埋設管浮上メカニズム

  TOSHINORI KAWABATA

  Nov. 2006, Earthquake Engineering Symposium, Vol.12, Japanese

  [Refereed]

  Scientific journal


• Behavior of buried flexible pipe under high fills and design implications

  Toshinori Kawabata, Hoe I. Ling, Yoshiyuki Mohri, Daisuke Shoda

  Oct. 2006, JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING, 132(10) (10), 1354 - 1359, English

  [Refereed]

  Scientific journal


• 模型実験による軽量曲管スラスト防護工法の機能検証とその発現機構

  KAWABATA TOSHINORI, SAWADA YUTAKA, 毛利 栄征, UCHIDA KAZUNORI

  農業土木学会, Aug. 2006, 農業土木学会論文集, (244) (244), 179 - 185, Japanese

  [Refereed]

  Scientific journal


• Mechanism of Bearing Capacity for Pile with Mult-Stepped Two Diameters Subjected to Vertical Load

  Kawabata Toshinori

  農業土木学会, Feb. 2006, Transaction of JSIDRE，, Vol. 241(1) (1), 79 - 85, Japanese

  [Refereed]

  Scientific journal


• Field test for buried large steel pipes with thin wall

  Toshinori Kawabata, Yoshiyuki Mohri, Hiroyuki Tamura, Daisuke Shoda, Tetsuya Oda

  2006, Proceedings of the 2006 Pipeline Division Specialty Conference - Pipelines 2006: Service to the Owner, 211, 78, English

  [Refereed]

  International conference proceedings


• Model pit test and DEM analysis on buried pipe subject to lateral loading

  Toshinori Kawabata, Yoshiyuki Mohri, Hoe I. Ling, Tomohiro Kitano

  2006, Proceedings of the 2006 Pipeline Division Specialty Conference - Pipelines 2006: Service to the Owner, 211, 84, English

  [Refereed]

  International conference proceedings


• Model tests for new lightweight thrust restraint using geogrid

  T. Kawabata, Y. Sawada, K. Uchida, T. Kitano, H. I. Ling, T. Hirai, K. Saito

  2006, GEOSYNTHETICS, VOLS 1-4, 1695 - +, English

  [Refereed]

  International conference proceedings


• Lateral load capacity for pile with multi-stepped two diameters embedded in sand

  Kazunori Uchida, Toshinori Kawabata, Aki Ohara, Daisuke Shoda

  2006, PROCEEDINGS OF THE SIXTEENTH (2006) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 2, 524 - 529, English

  [Refereed]

  International conference proceedings


• The behavior of buried flexible pipe in peat ground

  Toshinori Kawabata, Hoe I. Ling, Masato Osawa, Yutaka Sawada, Tetsuya Matsukawa

  ASCE, 2006, Proceedings of the 2006 Pipeline Division Specialty Conference - Pipelines 2006: Service to the Owner, 211, 81, English

  [Refereed]

  International conference proceedings


• ジオグリッドを用いた圧力管曲部スラスト防護工法の抵抗メカニズムに関する検討

  澤田 豊, 河端 俊典, 内田 一徳, 北野 知洋

  圧力管曲部に発生するスラスト力に抵抗するために通常,曲管部にコンクリート製ブロックを設けるが,これらの従来工法では,曲管部が重量構造物となり,局部沈下や地震時の位相差による継手離脱の誘因となる.本研究では,この従来工法に変わる新たな工法として,ジオグリッドを用いたスラスト防護工法を考案し,その実用性を図る.これまで,∅90の模型パイプを対象とした水平載荷模型実験から当工法の有効性を明らかにした.今回,当工法の抵抗メカニズムを検討するため,個別要素法による数値解析を実施した.さらに模型実験において地表面粒子挙動をPIV(粒子画像測定法)解析から検討した.数値解析および画像解析結果から,ジオグリッドで囲まれた領域およびその上方地盤が一体化することが明らかとなった.

  国際ジオシンセティックス学会 日本支部, Dec. 2005, ジオシンセティックス論文集，, Vol. 20,217-222, 217 - 222, Japanese

  [Refereed]

  Scientific journal


• ジオグリッドを用いたスラスト防護工法の水平抵抗メカニズムに関する検討

  SAWADA YUTAKA, KAWABATA TOSHINORI, 北野 知洋, UCHIDA KAZUNORI, 平井 貴雄, 斉藤 喜久雄

  圧力管曲部に発生するスラスト力に抵抗するために通常,曲管部にコンクリート製ブロックを設けるが,これらの従来工法では,曲管部が重量構造物となり,局部沈下や地震時の位相差による継手離脱の誘因となる.本研究では,この従来工法に変わる新たな工法として,ジオグリッドを用いたスラスト防護工法を考案し,その実用性を図る.これまで,∅90の模型パイプを対象とした水平載荷模型実験から当工法の有効性を明らかにした.今回,当工法の抵抗メカニズムを検討するため,個別要素法による数値解析を実施した.さらに模型実験において地表面粒子挙動をPIV(粒子画像測定法)解析から検討した.数値解析および画像解析結果から,ジオグリッドで囲まれた領域およびその上方地盤が一体化することが明らかとなった.

  ジオシンセティックス学会日本支部, Dec. 2005, ジオシンセティックス論文集, 20, 217 - 222, Japanese

  [Refereed]

  Scientific journal


• 繰返し単純せん断を受ける埋設管の浮上メカニズム

  河端 俊典, 大石 順司, 中瀬 仁, 毛利 栄征, 内田 一徳

  農業土木学会, Oct. 2005, 農業土木学会論文集, 第239号,.59-66(5) (5), 521 - 528, Japanese

  [Refereed]

  Scientific journal


• Lateral Loading Experiments on Thrust Protecting Method for Buried Bend with Geogrid

  KAWABATA TOSHINORI, SAWADA YUTAKA, UCHIDA KAZUNORI, Hirai, T, Saito, K

  ASCE, Jul. 2005, Proceedings of Geo-Frontiers 2005, (130-142) (130-142), 2763 - 2770, English

  [Refereed]

  International conference proceedings


• Experiments for Aseismic Thrust Protection Using Geogrid

  KAWABATA TOSHINORI, SAWADA YUTAKA, Kitano, T, UCHIDA KAZUNORI

  Jul. 2005, Proceedings of International Conference on Energy, Environment and Disasters, English

  [Refereed]

  International conference proceedings


• Examination of aseismic thrust protection for buried pipe using geogrid

  Kawabata Toshinori, Sawada Yutaka, Kitano Tomohiro, Uchida Kazunori

  Jul. 2005, Proceedings of International Conference on Energy, Environment and Disasters (INCEED 2005),Charlotte, NC, USA, English

  [Refereed]

  International conference proceedings


• 横波超音波共振法による農業用水管路の探傷の有効性

  茨田 匠, 吉村 睦, 河端 俊典, 石黒 覚

  農業土木学会, Jun. 2005, 農業土木学会論文集, 第237号,.123-128 (with English A(3) (3), 323 - 328, Japanese

  Scientific journal


• Research on the Dynamic Action of Earthquakes Contributing to Uplifting of Underground Structures,

  Suehiro, T, Nakase, H, Mohri, Y, Kawabata, Toshinori

  Jun. 2005, Proceedings of 15th International Offshore and Polar Engineering Conference, ISOPE2005, Seoul, Korea,, 746- 749, English

  [Refereed]

  International conference proceedings


• Mechanical behavior of model pile with multiple stepped two diameters,

  Uchida Kazunori, Kawabata Toshinori, Imai M, Shoda D, Nakase H

  Jan. 2005, Proceedings of Geofrontiers 2005, ASCE, Austin, USA，, GSP132,.1-10, English

  [Refereed]

  International conference proceedings


• Lateral Loading Experiments on Thrust Protecting Method for Buried Bend with Geogrid,

  Kawabata, Toshinori, Uchida Kazunori, Sawada Yutaka, Hirai T, Saito K

  Jan. 2005, Proceedings of Geofrontiers 2005, ASCE, Austin, TX,USA,, GSP140, .1-8(130-142) (130-142), 2763 - 2770, English

  [Refereed]

  International conference proceedings


• Uplift mechanism of underground structures in dry sand subjected to cyclic simple shear by DEM

  T Kawabata, K Uchida, J Ooishi, H Nakase

  2005, PROCEEDINGS OF THE FIFTEENTH (2005) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 2, 539-542, 539 - 542, English

  [Refereed]

  International conference proceedings


• Load bearing behavior for pile with multiple stepped two diameters embedded in decomposed granite soil

  K Uchida, T Kawabata, M Imai, D Shoda

  2005, PROCEEDINGS OF THE FIFTEENTH (2005) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 2, 543-547, 543 - 547, English

  [Refereed]

  International conference proceedings


• ジオグリッドを用いた圧力管路曲管部スラスト防護工法に関する実験

  河端 俊典, 内田 一徳, 澤田 豊, 平井 貴雄, 斉藤 喜久雄

  ジオグリッドを用いたスラスト防護工法の有効性を明らかにするために,従来工法であるコンクリートブロックを模擬した矩形断面を有する模型ならびにジオグリッドを用いたスラスト防護工法を設置した∅90の模型パイブを対象として,乾燥砂地盤内で横引き実験を行い,その挙動特性について検討した.その結果,パイプ後方に籠状にジオグリッドを設置する工法が極めてスラスト防護に有効であることが明らかになった.また,土被りを変化させた実験結果から,ジオグリッドによる増加抵抗力に関して,籠状領域の上下面引抜き抵抗に基づく設計のモデル化を行い,増加抵抗力の算定式を提案した.

  国際ジオシンセティックス学会 日本支部, Dec. 2004, ジオシンセティックス学会論文集, Vol.19,59-64, 59 - 64, Japanese

  Scientific journal


• ジオグリッドを用いた圧力管路曲管部スラスト防護工法に関する実験

  KAWABATA TOSHINORI, SAWADA YUTAKA, UCHIDA KAZUNORI, 平井 貴雄, 斉藤 喜久雄

  ジオグリッドを用いたスラスト防護工法の有効性を明らかにするために,従来工法であるコンクリートブロックを模擬した矩形断面を有する模型ならびにジオグリッドを用いたスラスト防護工法を設置した∅90の模型パイブを対象として,乾燥砂地盤内で横引き実験を行い,その挙動特性について検討した.その結果,パイプ後方に籠状にジオグリッドを設置する工法が極めてスラスト防護に有効であることが明らかになった.また,土被りを変化させた実験結果から,ジオグリッドによる増加抵抗力に関して,籠状領域の上下面引抜き抵抗に基づく設計のモデル化を行い,増加抵抗力の算定式を提案した.

  ジオシンセティックス学会日本支部, Dec. 2004, ジオシンセティックス論文集, 19, 59 - 64, Japanese

  [Refereed]

  Scientific journal


• Distribution of Traffic Loads for Shallowly Buried Pipe by D.E.M Analyses.

  KAWABATA Toshinori, ARIYOSHI M, UCHIDA Kazunori, LING H I, NAKASE H, SAWADA Y, MOHRI Y

  Aug. 2004, Proceedings of Pipeline 2004, CD Dir.9B.1-10, 255 - 264, English

  International conference proceedings


• Distribution of Traffic Loads for Shallowly Buried Pipe by D.E.M. Analyses

  KAWABATA TOSHINORI, Ariyoshi, M, UCHIDA KAZUNORI, Ling, H. I, Nakase, H, SAWADA YUTAKA, Mohri, Y

  ASCE, Aug. 2004, Proceedings of International Conference of Pipeline 2004, English

  [Refereed]

  International conference proceedings


• ジオグリッドを用いたライフライン曲管部のスラスト防護に関する基礎的研究（その2）

  KAWABATA TOSHINORI, UCHIDA KAZUNORI, TANAKA YASUO, SAWADA YUTAKA, 平井 貴雄, 斉藤 喜久雄

  Apr. 2004, 神戸大学都市安全研究センター報告, 8, 327 - 333, Japanese

  Research institution

  Link to Kobe Univ. Repository (Kernel)


• Evaluation of load bearing mechanism for pile with multiple stepped two diameters

  K Uchida, T Kawabata, H Nakase, M Imai, D Syoda, J Ooishi

  2004, PROCEEDINGS OF THE FOURTEENTH (2004) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 2, 未記入, 525 - 530, English

  International conference proceedings


• Lateral loading tests for buried pipe with geosynthetics

  T Kawabata, K Uchida, HI Ling, H Nakase, Y Sawada, J Hirai, K Saito

  2004, GEOTECHNICAL ENGINEERING FOR TRANSPORTATION PROJECTS, VOL 1, Voi.1,609-616(126) (126), 609 - 616, English

  International conference proceedings


• Lateral loading tests for buried pipe with geosynthetics

  T Kawabata, K Uchida, HI Ling, H Nakase, Y Sawada, J Hirai, K Saito

  2004, GEOTECHNICAL ENGINEERING FOR TRANSPORTATION PROJECTS, VOL 1, 126(126) (126), 609 - 616, English

  [Refereed]

  International conference proceedings


• Centrifugal modeling of seismic behavior of large-diameter pipe in liquefiable soil

  HI Ling, Y Mohri, T Kawabata, HB Liu, C Burke, LX Sun

  Dec. 2003, JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING, 129(12) (12), 1092 - 1101, English

  Scientific journal


• ジオシンセティックスを用いた曲管部スラスト防護工法に関する基礎研究

  KAWABATA TOSHINORI, UCHIDA KAZUNORI, 田中 泰雄, 平井 貴雄, 斉藤 喜久雄, SAWADA YUTAKA, 中瀬 仁, 平山 豪隆, 今井 正幸

  本論では,ジオシンセティクスを活用したスラスト防護工法の有効性を明らかにするため,∅90の模型パイプを対象に,乾燥砂地盤内で横引き実験を行い,その抵抗力について検討した.その結果,パイプの後方にジオグリッドを鉛直方向に設置する工法が,スラスト防護工法として極めて有効であるこが明らかになった.さらに,そのメカニズムについてDEM解析から検討を加えた.

  ジオシンセティックス学会日本支部, Dec. 2003, ジオシンセティックス論文集, 18, 215 - 220, Japanese

  [Refereed]

  Scientific journal


• ジオグリッドを用いたライフライン曲管部のスラスト防護に関する基礎的研究

  KAWABATA TOSHINORI, TANAKA YASUO, UCHIDA KAZUNORI, 中瀬 仁, 平井 貴雄, 斉藤 喜久雄, SAWADA YUTAKA, 今井 正幸

  神戸大学都市安全研究センター, Mar. 2003, 神戸大学都市安全研究センター報告, 7, 299 - 305, Japanese

  Research institution

  Link to Kobe Univ. Repository (Kernel)


• 大型振動台実験による埋設管の浮上と個別要素法解析

  中瀬 仁, 本田 中, 末広 俊夫, 毛利 栄征, 河端 俊典, 安田 進

  2003, 地盤工学シンポジウム論文集, Vol.48,pp.185-192, Japanese

  Scientific journal


• 液状化による地中構造物の浮き上がり被害に関する研究

  河端 俊典

  2003, 液状化による地中構造物の浮き上がり被害に関する受託研究委員会，地盤工学会, 未記入, Japanese

  Scientific journal


• ジオシンセティックスを用いた曲管部スラスト防護工法に関する基礎研究

  河端 俊典, 内田 一徳, 田中 泰雄, 平井 貴雄, 斎藤 喜久雄, 澤田 豊, 中瀬 仁, 平山 豪隆, 今井 正幸

  本論では,ジオシンセティクスを活用したスラスト防護工法の有効性を明らかにするため,∅90の模型パイプを対象に,乾燥砂地盤内で横引き実験を行い,その抵抗力について検討した.その結果,パイプの後方にジオグリッドを鉛直方向に設置する工法が,スラスト防護工法として極めて有効であるこが明らかになった.さらに,そのメカニズムについてDEM解析から検討を加えた.

  国際ジオシンセティックス学会 日本支部, 2003, ジオシンセティックス論文集, Vol.18, 215 - 220, Japanese

  [Refereed]

  Scientific journal


• Full-Scale Experiments on Uplift of Underground Structures Due to Liquefaction by Dynamite Blasting

  NAKASE H, MOHRI Y, KAWABATA Toshinori, YASUDA S

  2003, 港湾・臨海部都市機能の耐震性向上に関するシンポジウム論文集，地盤工学会, pp.162-165, English

  Scientific journal


• Experiments on Buried Flexible Pipe Using Backfill of Cover with Geosynthetics, New Pipeline Technologies, Security, and Safety

  KAWABATA Toshinori, UCHIDA Kazunori, HIRAI T, MOHRI Y, LING H. I, KOYAMA N

  2003, Proc. of Int. Conf. onPipeline Engineering and Construction, ASCE,Baltimore, MD, USA, Vol.2,pp.1271-1278, English

  International conference proceedings


• D.E.M. Analyses on Behavior of Shallowly Buried Pipe Subject to Traffic Loads, New Pipeline Technologies, Security, and Safety

  KAWABATA Toshinori, UCHIDA Kazunori, ARIYOSHI M, NAKASE H, MOHRI Y, LING H. I

  2003, Proc. of Int. Conf. onPipeline Engineering and Construction, ASCE,Baltimore, MD, USA, Vol.2,pp.1218-1227, English

  International conference proceedings


• ジオグリッドによるパイプラインの浅埋設施工について

  Ling Hoe. I., 毛利 栄征, 河端 俊典

  Japan Chapter of International Geosynthetics Society, 2002, ジオシンセティックス技術情報, 18(1) (1), 16 - 25, Japanese


• Earth pressure distribution for buried pipe bend subject to internal pressure

  Toshinori Kawabata, Yoshiyuki Mohri, Hoe I. Ling

  2002, Pipelines 2002 - Beneath Our Feet: Challengers and Solutions - Proceedings of the Pipeline Division Specialty Conference, 65, English

  [Refereed]

  International conference proceedings


• Permanent displacement of composite breakwaters subject to wave impact

  Hoe I. Ling, Alexander H.-D. Cheng, Yoshiyuki Mohri, Toshinori Kawabata

  ASCE, Jan. 1999, Journal of Waterway, Port, Coastal and Ocean Engineering, 125(1) (1), 1 - 8, English

  [Refereed]

  Scientific journal


• Tensile properties of geogrids under cyclic loadings

  Hoe I. Ling, Yoshiyuki Mohri, Toshinori Kawabata

  ASCE, Aug. 1998, Journal of Geotechnical and Geoenvironmental Engineering, 124(8) (8), 782 - 787, English

  [Refereed]

  Scientific journal


• Estimation of municipal solid waste landfill settlement

  Hoe I. Ling, Dov Leshchinsky, Yoshiyuki Mohri, Toshinori Kawabata

  ASCE - American Society of Civil Engineers, 1998, Journal of Geotechnical and Geoenvironmental Engineering, 124(1) (1), 21 - 28, English

  [Refereed]

  Scientific journal


• Large-Scale Experiment Related to Effects of Geogrid on Flotation of Buried Pipeline

  Mohri Yoshiyuki, Kawabata Toshinori, Fujita Nobuo, Ling Hoe I.

  The behavior of buried pipeline is influenced by ground water and subjected to uplift force. Therefore, pipeline must be installed to the suitable depth of cover to prevent from floating. Because of this condition, the construction cost of pipeline becomes much expensive. Since large diameter pipeline particularly needs to excavate a deep trench, it is significantly required to bury shallowly due to the declining budget of construction.
  This paper discusses the effect of geosynthetics for prevention from shallowly buried pipe floatation based on the results of large-scale pit tests using a FRPM pipe (∅1100). It is found that geosynthetics set on the pipe fixes to the backfill material around the pipe and that total weight of fixed material is effective against pipe floatation.
  In addition, a mechanism of prevention from floatation of pipe is estimated about the result that geosynthetics works not with simply pulled out mode but bending mode in the soil.

  Japan Chapter of International Geosynthetics Society, 1997, Geosynthetics Engineering Journal, 12, 98 - 106

• レキの掃流摩耗を模擬した「回転式水中摩耗試験」 : 河川構造物の耐摩耗性の評価に活用

  金森 拓也, 有田 淳一, 浅野 勇, 川邉 翔平, 青柳 邦夫, 河端 俊典, 澤田 豊, 森 充広

  東京 : 農業農村整備情報総合センター, Oct. 2022, ARIC情報 / 農業農村整備情報総合センター 編, (147) (147), 8 - 13, Japanese


• ベントナイト系遮水シートにより改修されるため池の耐震性

  SAWADA YUTAKA, 中澤 博志, KAWABATA TOSHINORI

  新樹社, Apr. 2019, 防水ジャーナル, (2019年4月号) (2019年4月号), 68 - 71, Japanese

  [Invited]

  Introduction commerce magazine


• 遮水シートを用いたため池堤体の耐震性に関する実大実験(その1)-プロジェクト概要-

  中澤博志, 澤田豊, 重元凜太郎, 古林智宏, 豊吉巧也, 谷本幹夫, 小田哲也, 澁谷啓, 河端俊典

  2018, 地盤工学研究発表会発表講演集(CD-ROM), 53rd


• 遮水シートを用いたため池堤体の耐震性に関する実大実験(その2)-実験後の堤体損傷状況-

  重元凜太郎, 澤田豊, 豊吉巧也, 中澤博志, 古林智宏, 澁谷啓, 河端俊典

  2018, 地盤工学研究発表会発表講演集(CD-ROM), 53rd


• 農業農村整備におけるジオシンセティックスの活用

  SAWADA YUTAKA, KAWABATA TOSHINORI

  国際ジオシンセティックス学会日本支部, Jul. 2016, ジオシンセティックス技術情報, 32(2) (2), 24 - 29, Japanese

  [Invited]

  Introduction scientific journal


• 兵庫県におけるため池の耐震調査と保全・管理について

  小田 哲也, 森脇 馨, 谷垣 和彦, 野村 純数, SAWADA YUTAKA, KAWABATA TOSHINORI

  公益社団法人農業農村工学会, Dec. 2015, 水土の知, 83(12) (12), 7 - 10, Japanese

  [Refereed]

  Introduction scientific journal


• ジオグリッドによる圧力管屈曲部の耐震化工法の研究開発

  KAWABATA TOSHINORI, SAWADA YUTAKA, 毛利 栄征

  ジオシンセティックス学会日本支部, Jul. 2011, ジオシンセティックス技術情報, 27(2) (2), 28 - 35, Japanese

  [Refereed]

  Introduction scientific journal


• Mechanical Behavior on Pile with Multi-Stepped Two Diameters under Combined Load

  SHODA Daisuke, KAWABATA Toshinori, UCHIDA Kazunori

  The model tests under lateral and combined load were conducted to verify the mechanical behavior on the rigid pile with multi-stepped two diameters. From the results of lateral load tests, the bearing capacity increases with the frontal projected area. For each pile, the lateral bearing capacity on the lateral load tests is smaller than the one on the combined load tests. Under combined load tests, the lateral soil pressure in MS-pile increases around the concave part to be push by vertical load. DEM analysis was also performed to evaluate the mechanical behavior under combined load. As the result of the DEM, the vertical loading before the lateral loading has the effect on the increase of the contact force between particles. <br> Based on above test results, the ultimate lateral bearing capacity was calculated. Under combined loading tests, the calculation method involves three assumptions. The predicted values using the method are in close agreement with the measured values at about 4% of lateral displacement ratio.

  The Japanese Society of Irrigation, Drainage and Rural Engineering, 25 Jun. 2010, Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering, 78(3) (3), 157 - 165, Japanese

  [Refereed]


• New technology improvement work for irrigation pond

  内田 一徳, 田中 勉, 河端 俊典

  農業農村工学会, Jun. 2010, 水土の知, 78(6) (6), 485 - 488, Japanese


• 流動化処理土による大口径パイプラインの埋設

  MOHRI YOSHIYUKI, KAWABATA TOSHINORI

  総合土木研究所, Apr. 2010, 基礎工, 38(4) (4), 60 - 62, Japanese

  [Refereed]

  Report scientific journal


• University Education for Engineers in Circle of Industry-Government-Academia Collaborations

  KAWABATA Toshinori

  農業農村工学会, 01 Feb. 2009, 水土の知 : 農業農村工学会誌 : journal of the Japanese Society of Irrigation, Drainage and Rural Engineering, 77(2) (2), 89 - 92, Japanese


• 産官学連携の環に中における大学の技術者教育

  KAWABATA TOSHINORI

  農業農村工学会, Feb. 2009, 水土の知，農業農村工学会誌, Vol.77(No.2) (No.2), 7 - 10, Japanese

  [Refereed][Invited]

  Introduction scientific journal


• 農業水利施設へのジオシンセティックスの応用について

  KAWABATA TOSHINORI

  国際ジオシンセティックス学会日本支部, Nov. 2008, ジオシンセティックス学会誌，, Vol.24(No.3) (No.3), 26 - 31, Japanese

  [Refereed]

  Introduction scientific journal


• Evaluation of Ultimate Vertical Bearing Capacity for Pile with Multi-Stepped Two Diameters

  SHODA Daisuke, KAWABATA Toshinori, UCHIDA Kazunori

  農業農村工学会, 25 Aug. 2008, Transactions of the Japanese Society of Irrigation, Drainage and Rural Engineering, 76(4) (4), 343 - 350, Japanese


• Earthquake Damage and Countermeasure for Buried Pipeline

  MOHRI Yoshiyuki, FUJITA Nobuo, KAWABATA Toshinori

  農業農村工学会, 01 Feb. 2008, 水土の知 : 農業農村工学会誌 :, 76(2) (2), 95 - 98, Japanese


• Verification of Effectiveness for Lightweight Thrust Restraint Method of Buried Bend and Mechanism of Lateral Resistance by Model Tests

  KAWABATA Toshinori, SAWADA Yutaka, MOHRI Yoshiyuki, UCHIDA Kazunori

  農業土木学会, 25 Aug. 2006, Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, 74(4) (4), 581 - 587, Japanese


• ジオグリッドを用いたライフライン曲管部のスラスト防護に関する基礎的研究（その２）

  河端 俊典, 内田 一徳, 田中 泰雄, 澤田 豊, 平井 貴雄, 斉藤 喜久雄

  Apr. 2004, 神戸大学都市安全研究センター報告, 第8号,327-333, Japanese

  Others

  Link to Kobe Univ. Repository (Kernel)


• Load Bearing Mechanism of a Pile with Multiple Stepped Two Diameters

  Shoda Daisuke, Uchida Kazunori, Kawabata Toshinori, Imai Masayuki, Nakase Hitoshi

  部分拡幅杭は、杭の中間部に拡大部を設けた現場打ちソイルセメント杭であり、コスト削減、建設廃土軽減などの特徴が挙げられる。前回は半割杭の実験を行ったが、杭と壁面との摩擦などの影響が懸念される。そこで本研究では円形杭を用い、下記の観点から検討を行う。

  The Japanese Geotechnical Society, 2004, Proceedings of the Japan National Conference on Geotechnical Engineering, 39(0) (0), 1507 - 1508


• Model Tests on behavior of burried pipe in reinforced embankment

  Shoda Daisuke, Kawabata Toshinori, Uchida Kazunori, Hirai Takao, Koyama Nozomi, Sawada Yutaka, Mohri Yoshiyuki

  近年、ジオシンセティックス等を用いた補強盛土が広く普及してきている.このような補強盛土においては,周辺地山からの湧水や雨水排水などを主目的として,排水パイプが埋設される場合があるが,補強盛土中に埋設されるパイプの挙動特性は明らかになっておらず,適切な設計手法の確立が望まれているところである.今回、二方向ロードセルを20個配置したφ150のたわみ性模型パイプを作製し,中型土槽を用いた埋設実験を実施し,沈下に伴うパイプならびに周辺地盤の挙動について検討した.

  The Japanese Geotechnical Society, 2003, Proceedings of the Japan National Conference on Geotechnical Engineering, 38(0) (0), 1767 - 1768


• ジオグリッドを用いたライフライン曲管部のスラスト防護に関する基礎的研究

  河端 俊典, 田中 泰雄, 内田 一徳, 平井 貴雄, 中瀬 仁, 斉藤 喜久雄, 澤田 豊, 今井 正幸

  2003, 神戸大学都市安全研究センター研究報告, 7 299-305, Japanese

  Others

  Link to Kobe Univ. Repository (Kernel)


• Field Observation of Buried Flexible Pipe under High Fills

  KAWABATA Toshinori, MOHRI Yoshiyuki, LING Hoe I.

  A long-term observation of the behavior of buried flexible pipe under a cover depth of 47.1m was carried out. It was found out that the current sewerage design guidelines resulted in extremely conservative design values. A general solution for the thin-wall ring under external pressure was derived. Based on the measured deflections and strains of the pipe, the earth pressure that acts on the flexible pipe under high fills was estimated. In comparing the measured and calculated results, it was found that the vertical earth pressure distribution was concave in shape having 90% of average earth pressure at the pipe top.

  地盤工学会, 01 Nov. 2002, 土と基礎 = Soil mechanics and foundation engineering, 50(11) (11), 12 - 14, Japanese


• Verification of Shallow Cover for Buried Pipeline Reinforced with Geogrids

  MOHRI Yoshiyuki, KAWABATA Toshinori, FUJITA Nobuo

  農業土木学会, 25 Aug. 2000, Transactions of the Agricultural Engineering Society,Japan, 68(4) (4), 551 - 559, Japanese


• Model Tests of Uplift Resistance on Buried Pipe

  MOHRI Yoshiyuki, KAWABATA Toshinori, LING Hoe I., SUN Lixun

  農業土木学会, 25 Feb. 2000, Transactions of the Agricultural Engineering Society,Japan, 68(1) (1), 25 - 33, Japanese


• 大口径低外圧剛性パイプの埋設挙動--現場埋設実験と施工過程を考慮した非線形弾性解析

  河端 俊典, 毛利 栄征, 近藤 武

  農業土木学会, Oct. 1993, 農業土木学会論文集, (167) (167), p19 - 27, Japanese


• 強化プラスチック複合管の砕石埋戻し工法 (水<特集>)

  河端 俊典, 藤田 信夫

  クボタ技術企画室, 1991, Kubota technical report, (23) (23), p199 - 211, Japanese


• 大口径可とう性パイプの土中挙動--矢板施工の場合

  毛利 栄征, 河端 俊典

  農業土木技術研究会, Jun. 1987, 水と土, (69) (69), p7 - 14, Japanese

• New Horizons in Earth Reinforcement, Shaking Table Test for Lightweight Spillway with Geogrid

  KAWABATA TOSHINORI, UCHIDA KAZUNORI

  Joint work, Taylor & Francis /Balkema,, Jan. 2008, English

  Scholarly book


• New Horizons in Earth Reinforcement, Full-Scale Experiments on Bend of Pressure Pipeline Using Geogrid

  SAWADA YUTAKA, KAWABATA TOSHINORI, Totsugi, A, Hironaka, J, UCHIDA KAZUNORI

  Joint work, Taylor & Francis, Nov. 2007, English

  Scholarly book


• Model Tests for New Lightweight Thrust Restraint Using Geogrid

  Kawabata Toshinori

  Joint work, Geosynthetics, Sep. 2006, English

  Scholarly book


• Geosynthetics, Model tests for new lightweight thrust restrain using geogrid

  KAWABATA TOSHINORI, SAWADA YUTAKA, UCHIDA KAZUNORI, Kitano, T, Ling, H.I, Hirai, T, Saito, K

  Joint work, Millpress Science, Sep. 2006, English

  Scholarly book


• Effect of Geosynthetic Reinforcement on Soil-Pipe Interaction-,

  Kawabata Toshinori

  Joint work, Geosynthetics and Geosynthetic-Engineered Structures, Jul. 2005, English

  Scholarly book


• Geosynthetic Reinforcement in the Mitigation of Pipeline Flotation

  Kawabata Toshinori

  Joint work, Reinforced Soil Engineering, Advances in Research and Practice, Aug. 2003, English

  Scholarly book


• 5.3.4 Pipe, 8.3 Pipeline

  kawabata Toshinori

  Joint work, Construction Materials, Feb. 2003, Japanese

  Scholarly book


• Geosynthetic Reinforcement in the Mitigation of Pipeline Flotation -, Advances in Reinforced Soil Research and Practice

  MOHRI Y, KAWABATA Toshinori, LING H I

  Joint work, Dekker, Inc., New York, 2003, English

  Scholarly book


• 5.3.4 パイプ，8.3 パイプライン，建設材料 － 地域環境の創造（青山咸康ほか編集）

  河端 俊典

  Joint work, 朝倉書店, 2003, Japanese

  Scholarly book


• Performance of shallow cover method with Geogrid on Pipe at Site

  Kawabata Toshinori

  Joint work, Geosynthetics- state of the Art – Recent Developments,, Sep. 2002, English

  Scholarly book


• FEM Simulation Analysis on Liquefaction - induced Countermeasure Test for Underground PipelinesEarthquake Geotechnical Engineering,

  Kawabata Toshinori

  Joint work, Balkema, Jun. 1999, English

  Scholarly book

• ベントナイト系遮水シートを敷設したため池堤体の浸潤線の位置に関する解析的検討

  阿部春輝,眞木 陸,澤田 豊,河端 俊典

  第76回農業農村工学会京都支部研究発表会, Nov. 2019, Japanese, Domestic conference

  Oral presentation


• ベントナイト系遮水シートを敷設したため池堤体の現地水位計測

  眞木 陸,澤田 豊,河端 俊典,神信 浩一,谷本 幹夫,中澤 博志

  第76回農業農村工学会京都支部研究発表会, Nov. 2019, Japanese, Domestic conference

  Oral presentation


• 3次元FEMによる軟弱地盤内のPE管及び継手の挙動に関する検討

  上田前向,徳増美月,高原源太朗,日野林譲二,澤田豊,河端俊典

  2019年度農業農村工学会大会講演会, Sep. 2019, Japanese, Domestic conference

  Oral presentation


• EPS 破砕片を用いた地盤侵食の促進に関する水理実験

  竹川尚希,角川莉央,澤田 豊,河端俊典

  2019年度農業農村工学会大会講演会, Sep. 2019, Japanese, Domestic conference

  Oral presentation


• 矢板施工時における二条埋設管の敷設間隔が変形挙動に及ぼす影響

  戸田 茉優, 宮崎 礼丈, 石川 拓也, SAWADA YUTAKA, KAWABATA TOSHINORI

  第54回地盤工学研究発表会, Jul. 2019, Japanese, さいたま市, Domestic conference

  Oral presentation


• 埋設管の屈曲角度が水平抵抗力に与える影響に関する3次元個別要素法解析

  廣川 慎, 寺田 健司, SAWADA YUTAKA, KAWABATA TOSHINORI

  第54回地盤工学研究発表会, Jul. 2019, Japanese, さいたま市, Domestic conference

  Oral presentation


• 屈曲角度および表面摩擦が異なる曲管の水平載荷実験

  河村 未奈, 太田 遥子, SAWADA YUTAKA, KAWABATA TOSHINORI

  第54回地盤工学研究発表会, Jul. 2019, Japanese, さいたま市, Domestic conference

  Oral presentation


• ジオグリッドと砕石を用いた圧力管路屈曲部スラスト対策工法に関する1G場小型振動実験②（液状化地盤での有効性の検討）

  太田 遥子, 河村 未奈, 喜多田 恵, SAWADA YUTAKA, KAWABATA TOSHINORI

  第54回地盤工学研究発表会, Jul. 2019, Japanese, さいたま市, Domestic conference

  Oral presentation


• ジオグリッドと砕石を用いた圧力管路屈曲部スラスト対策工法に関する1G場小型振動実験①（耐震性の検討）

  喜多田 恵, 太田 遥子, 河村 未奈, SAWADA YUTAKA, KAWABATA TOSHINORI

  第54回地盤工学研究発表会, Jul. 2019, Japanese, さいたま市, Domestic conference

  Oral presentation


• 矢板引抜きが二条埋設たわみ性管に及ぼす影響関するDEM解析

  宮崎 礼丈, 石川 拓也, 戸田 茉優, 澤田 豊, KAWABATA TOSHINORI

  農業農村工学会京都支部第75回研究発表会, Nov. 2018, Japanese, Domestic conference

  Oral presentation


• 不同沈下させたポリエチレン管路の繰り返し内水圧負荷時の力学的挙動

  上田 前向, 澤田 豊, KAWABATA TOSHINORI, 日野林 讓二, 髙原 源太朗

  農業農村工学会京都支部第75回研究発表会, Nov. 2018, Japanese, Domestic conference

  Oral presentation


• 軽量スラスト防護工法の形状寸法効果に関する一考察

  太田 遥子, 河村 未奈, 澤田 豊, KAWABATA TOSHINORI

  農業農村工学会京都支部第75回研究発表会, Nov. 2018, Japanese, Domestic conference

  Oral presentation


• 圧力管路屈曲部の角度が水平スラスト抵抗力に与える影響

  河村 未奈, 太田 遥子, 澤田 豊, KAWABATA TOSHINORI

  農業農村工学会京都支部第75回研究発表会, Nov. 2018, Japanese, Domestic conference

  Oral presentation


• ガラス繊維強化ポリエチレン管の泥炭地盤における埋設挙動（その２）

  日野林 讓二, 髙原 源太朗, 加後 郁也, 高橋 勝徳, 花山 一典, 中村 和正, 大久保 天, KAWABATA TOSHINORI

  第67回農業農村工学会北海道支部研究発表講演会, Nov. 2018, Japanese, Domestic conference

  Oral presentation


• 基床部の緩みが埋設管継手部近傍の管体挙動に与える影響

  石川 拓也, 小野 耕平, 澤田 豊, 春本 朋洋, 森上 浩伸, KAWABATA TOSHINORI

  平成30年度農業農村工学会大会講演会, Sep. 2018, Japanese, Domestic conference

  Oral presentation


• 海岸堤防を越流する津波想定した鉛直噴に対する洗堀策の実験的検討

  竹川 尚希, 戸田 茉優, 澤田 豊, KAWABATA TOSHINORI

  平成30年度農業農村工学会大会講演会, Sep. 2018, Japanese, Domestic conference

  Oral presentation


• ジオグリッドを用いた埋設管屈曲部のスラスト防護工法に関する個別要素法シミュレーション

  寺田 健司, 廣川 慎, 澤田 豊, KAWABATA TOSHINORI

  平成30年度農業農村工学会大会講演会, Sep. 2018, Japanese, Domestic conference

  Oral presentation


• コンクリート製柔構造底樋の動的挙動に関する実験的検討

  宮崎 礼丈, 有吉 充, 有田 淳一, 澤田 豊, KAWABATA TOSHINORI

  平成30年度農業農村工学会大会講演会, Sep. 2018, Japanese, Domestic conference

  Oral presentation


• ガラス繊維強化ポリエチレン管システムの地盤変状による管軸方向変位が生じた場合の繰り返し内水圧による挙動

  髙原 源太朗, 上田 前向, 澤田 豊, 日野林 譲二, 加後 郁也, 中村 和正, KAWABATA TOSHINORI

  平成30年度農業農村工学会大会講演会, Sep. 2018, Japanese, Domestic conference

  Oral presentation


• ガラス繊維強化ポリエチレン管システムEF 継手の変形挙動解析

  瀬戸 敦詞, 髙原 源太朗, 日野林 譲二, 栗山 卓, KAWABATA TOSHINORI

  平成30年度農業農村工学会大会講演会, Sep. 2018, Japanese, Domestic conference

  Oral presentation


• ガラス繊維強化ポリエチレン管システムEF 継手の内圧挙動解析

  山田 和毅, 瀬戸 敦詞, 髙原 源太朗, 日野林 譲二, 栗山 卓, KAWABATA TOSHINORI

  平成30年度農業農村工学会大会講演会, Sep. 2018, Japanese, Domestic conference

  Oral presentation


• 遮水シートを用いたため池堤体の耐震性に関する実大実験（その2）-実験後の堤体損傷状況-

  重元 凜太郎, 澤田 豊, 豊吉 巧也, 中澤 博志, 古林 智宏, 澁谷 啓, KAWABATA TOSHINORI

  第53回地盤工学研究発表会, Jul. 2018, Japanese, 高松市, Domestic conference

  Oral presentation


• 遮水シートを用いたため池堤体の耐震性に関する実大実験(その1)-プロジェクト概要-

  中澤 博志, 澤田 豊, 重元 凜太郎, 古林 智宏, 豊吉 巧也, 谷本 幹夫, 小田 哲也, 澁谷 啓, KAWABATA TOSHINORI

  第53回地盤工学研究発表会, Jul. 2018, Japanese, Domestic conference

  Oral presentation


• 遮水シートの敷設方法がため池堤体の動的挙動に及ぼす影響

  Maki, R, Shigemoto, R, Sawada, Y, Kotake, N, Suzuki, M, Kawabata, T

  第53回地盤工学研究発表会, Jul. 2018, Japanese, 高松市, Domestic conference

  Oral presentation


• ガラス繊維強化ポリエチレン管の開発と泥炭地盤での埋設挙動

  髙原源太朗, 時吉充亮, 加後郁也, 花山一典, 栗山卓, 中村和正, KAWABATA TOSHINORI

  農業農村工学会北海道支部第66回研究発表会講演会, Nov. 2017, Japanese, 札幌市, Domestic conference

  Oral presentation


• 開水路継目部における背面土砂の吸い出しに関する水理模型実験

  竹川尚希, 澤田豊, KAWABATA TOSHINORI

  農業農村工学会京都支部第74回研究発表会講演会, Oct. 2017, Japanese, 金沢市, Domestic conference

  Oral presentation


• 個別要素法による矢板引抜き時における埋設管と周辺地盤の相互作用に関する検討

  寺田 健司, 高原 祥, SAWADA YUTAKA, KAWABATA TOSHINORI

  第52回地盤工学研究発表会, Sep. 2017, Japanese, 名古屋市, Domestic conference

  Oral presentation


• 異なる矢板設置条件におけるたわみ性埋設管の力学挙動に関する模型実験

  寺田 健司, 高原 祥, 宮崎 礼丈, 小野 耕平, 太田 遥子, SAWADA YUTAKA, KAWABATA TOSHINORI

  第52回地盤工学研究発表会, Sep. 2017, Japanese, 名古屋市, Domestic conference

  Oral presentation


• 内圧及び輪荷重が作用した塩化ビニル管の現地計測

  有吉充, 田中良和, 泉明良, KAWABATA TOSHINORI

  平成29年度農業農村工学会大会講演会, Aug. 2017, Japanese, 藤沢市, Domestic conference

  Oral presentation


• 泥炭地盤におけるガラス繊維強化ポリエチレン管システムの埋設挙動

  髙原源太朗, 日野林讓二, 加後郁也, 花山一典, 中村和正, 栗山卓, KAWABATA TOSHINORI

  平成29年度農業農村工学会大会講演会, Aug. 2017, Japanese, 藤沢市, Domestic conference

  Oral presentation


• 津波越流により生じる海岸堤防背後における洗掘形状の推定について

  竹川 尚希, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成29年度農業農村工学会大会講演会, Aug. 2017, Japanese, 藤沢市, Domestic conference

  Oral presentation


• 地盤沈下に伴うポリエチレン管及びその継手部近傍の変形挙動に関する模型実験

  上田 前向, 高原 源太朗, 日野林 譲二, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成29年度農業農村工学会大会講演会, Aug. 2017, Japanese, 藤沢市, Domestic conference

  Oral presentation


• 遮水シート工法により改修されたため池堤体の動的挙動に関する小型振動実験

  重元 凜太郎, 眞木 陸, 澤田 豊, 小竹 望, 鈴木 麻里子, 清水 敬三, 井上 和徳, 神信 浩一, 中澤 博志, 小田 哲也, 河端 俊典

  平成29年度農業農村工学会大会講演会, Aug. 2017, Japanese, 藤沢市, Domestic conference

  Oral presentation


• 基床部の緩みが継手を有するたわみ性埋設管の力学挙動に及ぼす影響

  小野 耕平, 石川 拓也, SAWADA YUTAKA, 春本 朋洋, 森上 浩伸, KAWABATA TOSHINORI

  平成29年度農業農村工学会大会講演会, Aug. 2017, Japanese, 藤沢市, Domestic conference

  Oral presentation


• ため池堤体内に設置されるベントナイト系遮水シートの力学特性に関する検討

  重元 凜太郎, SAWADA YUTAKA, 清水 敬三, 西村 達也, 神信 浩一, KAWABATA TOSHINORI

  平成29年度農業農村工学会大会講演会, Aug. 2017, Japanese, 藤沢市, Domestic conference

  Oral presentation


• ジオグリッドを用いた海岸堤防背後地盤の洗掘対策に関する模型実験

  竹川 尚希, 堀尾 有加, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成29年度農業農村工学会大会講演会, Aug. 2017, Japanese, 藤沢市, Domestic conference

  Oral presentation


• ガラス繊維強化ポリエチレン管の曲げの特性

  青山勇基, 時吉充亮, 日野林讓二, 加後郁也, 花山一典, 中村和正, 栗山卓, KAWABATA TOSHINORI

  平成29年度農業農村工学会大会講演会, Aug. 2017, Japanese, 藤沢市, Domestic conference

  Oral presentation


• ガラス繊維強化ポリエチレン管システムの曲げの特性（継手）

  瀬戸敦詞, 髙原源太朗, 日野林讓二, 加後郁也, 花山一典, 中村和正, 栗山卓, KAWABATA TOSHINORI

  平成29年度農業農村工学会大会講演会, Aug. 2017, Japanese, 藤沢市, Domestic conference

  Oral presentation


• ガラス繊維強化ポリエチレン管システムの開発

  時吉充亮, 日野林讓二, 加後郁也, 花山一典, 栗山卓, KAWABATA TOSHINORI

  平成29年度農業農村工学会大会講演会, Aug. 2017, Japanese, 藤沢市, Domestic conference

  Oral presentation


• Model Experiment on Earth Pressure Acting on Buried Pipe during Sheet Pile Extraction

  TERADA KENJI, TAKAHARA SHO, ONO KOHEI, SAWADA YUTAKA, Hoe I. Ling, KAWABATA TOSHINORI

  International Conference of Pipeline 2017, ASCE, Aug. 2017, English, Phoenix, Arizona, International conference

  Poster presentation


• 様々な有効応力下における埋設管の水平抵抗力の予測

  小野 耕平, 横田 木綿, 太田 遥子, SAWADA YUTAKA, KAWABATA TOSHINORI

  第52回地盤工学研究発表会, Jul. 2017, Japanese, 名古屋市, Domestic conference

  Oral presentation


• 水平力を受ける埋設管の液状化時の変位特性に関する模型実験

  小野 耕平, 横田 木綿, 太田 遥子, SAWADA YUTAKA, KAWABATA TOSHINORI

  第52回地盤工学研究発表会, Jul. 2017, Japanese, 名古屋市, Domestic conference

  Oral presentation


• ニューマーク法による実物大ため池堤体加振実験の残留すべり解析

  丁 經凡, 白 濟民, SHIBUYA SATORU, KAWABATA TOSHINORI, KATAOKA SATSUKI, SAWADA YUTAKA, 中澤 博志

  第52回地盤工学研究発表会, Jul. 2017, Japanese, 名古屋, Domestic conference

  Oral presentation


• 矢板引抜きによる埋設管のたわみに関するDEM解析

  寺田 健司, 小野 耕平, 高原 祥, 上田 前向, SAWADA YUTAKA, KAWABATA TOSHINORI

  第51回地盤工学研究発表会, Sep. 2016, Japanese, 岡山市, Domestic conference

  Oral presentation


• 地盤のせん断変形を受ける埋設管たわみの予測について

  高原 祥, 泉 明良, 三木 太貴, 小野 耕平, SAWADA YUTAKA, KAWABATA TOSHINORI

  第51回地盤工学研究発表会, Sep. 2016, Japanese, 岡山市, Domestic conference

  Oral presentation


• 異なる動水勾配下における埋設管の水平抵抗力と載荷速度の関係

  小野 耕平, 横田 木綿, 重元 凛太郎, SAWADA YUTAKA, KAWABATA TOSHINORI

  第51回地盤工学研究発表会, Sep. 2016, Japanese, 岡山市, Domestic conference

  Oral presentation


• ベントナイトシートを敷設した小型ため池堤体模型の振動台実験

  丁 經凡, 白 濟民, SHIBUYA SATORU, KAWABATA TOSHINORI, KATAOKA SATSUKI, SAWADA YUTAKA

  第51回地盤工学研究発表会, Sep. 2016, Japanese, 岡山市, Domestic conference

  Oral presentation


• せん断変形を受ける二重構造管の既設管損傷過程を考慮した個別要素法解析

  高原 祥, 泉 明良, 三木 太貴, 小野 耕平, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成28年度農業農村工学会大会講演会, Sep. 2016, Japanese, 仙台市, Domestic conference

  Oral presentation


• 津波越流による海岸堤防裏法尻の最大洗掘深の予測について

  竹川 尚希, SAWADA YUTAKA, 村井 和樹, KAWABATA TOSHINORI

  平成28年度農業農村工学会大会講演会, Aug. 2016, Japanese, 仙台市, Domestic conference

  Oral presentation


• 水中暴露した生分解性樹脂コンクリートの強度低下比較

  鈴木麻里子, 足立優斗, 秦栄三, 中村誠, 吉村睦, 河端俊典

  農業農村工学会, Aug. 2016, Japanese, Domestic conference

  Oral presentation


• 海岸堤防背後地盤の液状化が津波越流による洗掘に及ぼす影響

  SAWADA YUTAKA, 竹川 尚希, 村井 和樹, KAWABATA TOSHINORI

  平成28年度農業農村工学会大会講演会, Aug. 2016, Japanese, 仙台市, Domestic conference

  Oral presentation


• 液状化地盤における埋設管の水平載荷実験に関するPIV解析

  小野 耕平, 横田 木綿, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成28年度農業農村工学会大会講演会, Aug. 2016, Japanese, 仙台市, Domestic conference

  Oral presentation


• ジオグリッドを用いた補強地盤における埋設管の水平抵抗力と液状化程度の関係

  横田 木綿, 小野 耕平, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成28年度農業農村工学会大会講演会, Aug. 2016, Japanese, 仙台市, Domestic conference

  Oral presentation


• 地盤せん断変形時のたわみ性埋設管に作用する土圧分布に関する考察

  三木 太貴, 泉 明良, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成27年度農業農村工学会京都支部講演会, Nov. 2015, Japanese, 大津市, Domestic conference

  Oral presentation


• 循環型地域環境に配慮した生分解性樹脂コンクリートに関する基礎的研究

  鈴木麻里子, 佐藤隆治, 河端俊典, 中村誠, 吉村睦

  平成27年度地盤工学会四国支部技術研究発表会，pp.51-52（高松）, Nov. 2015, Japanese, 高松市, Domestic conference

  Oral presentation


• 基床厚が埋設管のたわみに与える影響に関する一考察

  高原 祥, 小野 耕平, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成27年度農業農村工学会京都支部講演会, Nov. 2015, Japanese, 大津市, Domestic conference

  Oral presentation


• 液状化地盤における管路挙動 －隈戸川地区幹線用水路の被災事例－

  春本朋洋, 宮田 勉, KAWABATA TOSHINORI, Ariyoshi Mitsuru, 毛利 栄征, Itani Yoshinori

  平成27年度農業農村工学会京都支部講演会, Nov. 2015, Japanese, 大津市, Domestic conference

  Oral presentation


• ため池の耐震調査と整備について～兵庫県の事例～

  小田 哲也, 谷垣 和彦, 野村 純数, KAWABATA TOSHINORI, SAWADA YUTAKA

  平成27年度農業農村工学会京都支部講演会, Nov. 2015, Japanese, 大津市, Domestic conference

  Oral presentation


• 偏心荷重を受ける更生管の力学挙動に関する模型実験

  小野 耕平, 高原 祥, 竹川 尚希, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成27年度農業農村工学会大会講演会, Sep. 2015, Japanese, 岡山市, Domestic conference

  Oral presentation


• 偏心荷重を受ける更生管の力学挙動に関する3次元有限要素解析

  高原 祥, 小野 耕平, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成27年度農業農村工学会大会講演会, Sep. 2015, Japanese, 岡山市, Domestic conference

  Oral presentation


• 地盤のせん断変形がたわみ性管の力学挙動に与える影響

  泉 明良, 三木 太貴, 寺田 健司, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成27年度農業農村工学会大会講演会, Sep. 2015, Japanese, 岡山市, Domestic conference

  Oral presentation


• 生分解性レジンコンクリートの分解制御方法の検討

  SUZUKI TAKESHI, TOKOROTANI MOMOE, SUZUKI MARIKO, KUBO KYOKO, KAWABATA TOSHINORI, FUJITAKE NOBUHIDE

  日本土壌肥料学会京都大会, Sep. 2015, Japanese, 日本土壌肥料学会, 京都大学, Domestic conference

  Poster presentation


• 水平載荷実験による継手構造管路屈曲部の挙動

  ITANI YOSHINORI, FUJITA NOBUO, YOKOTA YU, ARIYOSHI MITSURU, MOHRI YOSHIYUKI, KAWABATA TOSHINORI

  平成27年度農業農村工学会大会講演会, Sep. 2015, Japanese, 岡山市, Domestic conference

  Oral presentation


• 衝撃弾性波によるトンネル背面空洞探査に関する実験

  茨田 匠, 浅尾 瞳, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成27年度農業農村工学会大会講演会, Sep. 2015, Japanese, 岡山市, Domestic conference

  Oral presentation


• 繰返しせん断変形を受ける更生管の変形挙動に関するDEM解析

  三木 太貴, 泉 明良, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成27年度農業農村工学会大会講演会, Sep. 2015, Japanese, 岡山市, Domestic conference

  Oral presentation


• 管路更生管の変形挙動に関する繰返しせん断実験

  泉 明良, 三木 太貴, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成27年度農業農村工学会大会講演会, Sep. 2015, Japanese, 岡山市, Domestic conference

  Oral presentation


• 液状化程度の異なる地盤の洗掘に関する検討

  SAWADA YUTAKA, 村井 和樹, KAWABATA TOSHINORI

  平成27年度農業農村工学会大会講演会, Sep. 2015, Japanese, 岡山市, Domestic conference

  Oral presentation


• 液状化地盤における継手構造管路屈曲部の動的挙動

  FUJITA NOBUO, ITANI YOSHINORI, ARIYOSHI MITSURU, MOHRI YOSHIYUKI, KAWABATA TOSHINORI

  平成27年度農業農村工学会大会講演会, Sep. 2015, Japanese, 岡山市, Domestic conference

  Oral presentation


• 液状化時における更生管軸方向挙動に関する振動台実験

  小野耕平, 泉 明良, 高原 祥, KAWABATA TOSHINORI, 毛利栄征, 有吉 充

  平成27年度農業農村工学会大会講演会, Sep. 2015, Japanese, 岡山市, Domestic conference

  Oral presentation


• 異なる樹脂を用いた生分解性モルタルの圧縮強度比較

  鈴木麻里子, 佐藤隆治, 河端俊典, 中村誠, 吉村睦

  平成27年度農業農村工学会大会講演会, Sep. 2015, Japanese, 岡山市, Domestic conference

  Oral presentation


• ため池堤体土の非排水繰返し載荷に伴う強度低下特性に関する実験的検討

  小林 成太, SAWADA YUTAKA, KAWABATA TOSHINORI, 野村 純数, 小田 哲也, 三輪 顕, 藤澤 大吾, 田平 健二

  平成27年度農業農村工学会大会講演会, Sep. 2015, Japanese, 岡山市, Domestic conference

  Oral presentation


• パイプラインの動的挙動に関する研究経緯について

  KAWABATA TOSHINORI

  H26年度農業農村工学会京都支部講習会・研修会, Feb. 2015, Japanese, 京都, Domestic conference

  [Invited]

  Invited oral presentation


• 農業用パイプラインに用いるダクタイル鋳鉄管の機能診断手法に関する研究

  IBATA TAKUMI, ITANI YOSHINORI, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成26年度農業農村工学会京都支部講演会, Nov. 2014, Japanese, 岐阜, Domestic conference

  Oral presentation


• 竹材による小規模斜面の補強効果に関する検討

  真木 貴也, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成26年度農業農村工学会京都支部講演会, Nov. 2014, Japanese, 岐阜, Domestic conference

  Oral presentation


• 繰返し載荷を受けるため池堤体土の強度低下特性の検討

  澤田豊, 小林成太, 泉明良, 鈴木麻里子, 小野耕平, 河端俊典, 野村純数, 小田哲也, 三輪顕, 藤澤大吾, 田平健二

  農業農村工学会京都支部研究発表会講演要旨集, Nov. 2014, Japanese, Domestic conference

  Others


• 繰り返し載荷を受けるため池堤体土の強度低下特性の検討

  SAWADA YUTAKA, KOBAYASHI SEITA, 泉 明良, 鈴木 麻里子, 小野 耕平, KAWABATA TOSHINORI

  平成26年度農業農村工学会京都支部講演会, Nov. 2014, Japanese, 岐阜, Domestic conference

  Oral presentation


• 埋設管の水平抵抗力と液状化程度の関係

  井谷 昌功, 藤田 信夫, SAWADA YUTAKA, KAWABATA TOSHINORI, 有吉 充, 毛利 栄征

  平成26年度農業農村工学会大会講演会, Aug. 2014, Japanese, 新潟市, Domestic conference

  Oral presentation


• 同一環剛性を有する管厚の異なるたわみ性パイプの遠心力模型実験

  泉 明良, SAWADA YUTAKA, INOUE KAZUYA, KAWABATA TOSHINORI, 日野林 譲二, Hoe I. Ling, 毛利 栄征

  平成26年度農業農村工学会大会講演会, Aug. 2014, Japanese, Domestic conference

  Oral presentation


• 損傷レベルの異なる既設管が更生管変形特性に与える影響に関する遠心力模型実験

  SAWADA YUTAKA, INOUE KAZUYA, 園田 悠介, 小野 耕平, 三木 太貴, 泉 明良, KAWABATA TOSHINORI, 高原 祥, 毛利 栄征, Ling H.I

  平成26年度農業農村工学会大会講演会, Aug. 2014, Japanese, 新潟市, Domestic conference

  Oral presentation


• 水分量の異なる環境下における生分解性樹脂コンクリートの曲げ強度変化

  KAWABATA TOSHINORI, SUZUKI TAKESHI, SUZUKI MARIKO

  H26年度農業農村工学会大会, Aug. 2014, Japanese, 新潟, Domestic conference

  Oral presentation


• 衝撃弾性波を用いたコンクリート構造物の背面空洞深さ測定に関する実験

  茨田 匠, 浅尾 瞳, SAWADA YUTAKA, KAWABATA TOSHINORI

  平成26年度農業農村工学会大会講演会, Aug. 2014, Japanese, Domestic conference

  Oral presentation


• 斜面を対象とした竹材の補強効果に関する模型実験

  SAWADA YUTAKA, 甲賀 洋輔, 真木 貴也, KAWABATA TOSHINORI, 横田 木綿

  平成26年度農業農村工学会大会講演会, Aug. 2014, Japanese, 新潟市, Domestic conference

  Oral presentation


• 材料施工分野の広報活動に関する事例紹介

  INOUE KAZUYA, SAWADA YUTAKA, KAWABATA TOSHINORI, TANAKA TSUTOMU

  平成26年度農業農村工学会大会, Aug. 2014, Japanese, 農業農村工学会, 新潟市, Domestic conference

  Oral presentation


• 管路更生工法に要求される材料長期性能と設計緒言への反映

  KAWABATA TOSHINORI

  H26年度農業農村工学会大会, Aug. 2014, Japanese, 新潟, Domestic conference

  Oral presentation


• 管路更生工法による単独管施工性試験の検討

  KAWABATA TOSHINORI

  H26年度農業農村工学会大会, Aug. 2014, Japanese, 新潟, Domestic conference

  Oral presentation


• 管路更生工法における単独管の内圧および内圧負荷時の継手部曲げ変形性能試験による照査技術の検討

  KAWABATA TOSHINORI

  H26年度農業農村工学会大会, Aug. 2014, Japanese, 新潟, Domestic conference

  Oral presentation


• 液状化地盤における断面形状の異なる埋設管の水平抵抗力

  藤田 信夫, 井谷 昌功, SAWADA YUTAKA, KAWABATA TOSHINORI, 有吉 充, 毛利 栄征

  平成26年度農業農村工学会大会講演会, Aug. 2014, Japanese, 新潟市, Domestic conference

  Oral presentation


• せん断変形を受ける埋設管のたわみ量に関する一考察

  SAWADA YUTAKA, 泉 明良, 原田 文, 小林 成太, KAWABATA TOSHINORI

  平成26年度農業農村工学会大会講演会, Aug. 2014, Japanese, 新潟市, Domestic conference

  Oral presentation


• 老朽既設管の影響を受ける更生管力学挙動に関する遠心力模型実験

  SAWADA YUTAKA, 園田 悠介, 小野 耕平, 三木 太貴, 高原 祥, 毛利 栄征, KAWABATA TOSHINORI

  第49回地盤工学研究発表会, Jul. 2014, Japanese, 北九州市, Domestic conference

  Oral presentation


• 竹材を利用した斜面補強に関する実験的検討

  SAWADA YUTAKA, 甲賀 洋輔, 真木 貴也, 横田 木綿, KAWABATA TOSHINORI

  第49回地盤工学研究発表会, Jul. 2014, Japanese, 北九州市, Domestic conference

  Oral presentation


• 生分解性樹脂コンクリートの劣化進度に関する一考察－分子量および樹脂含有率の影響－

  KAWABATA TOSHINORI, SUZUKI MARIKO

  第49回地盤工学研究発表会, Jul. 2014, Japanese, 北九州市, Domestic conference

  Oral presentation


• 生分解性樹脂コンクリートの劣化進度に関する一考察―分子量および樹脂含有率の影響―

  鈴木麻里子, 久保京子, 秦栄三, 中村誠, 吉村睦, 河端俊典

  地盤工学研究発表会発表講演集(CD-ROM), Jul. 2014, Japanese, Domestic conference

  Others


• 生分解性樹脂コンクリートの曲げ強度特性に与える埋設土の影響

  鈴木麻里子, 久保京子, 秦栄三, 中村誠, 吉村睦, 河端俊典

  地盤工学研究発表会発表講演集(CD-ROM), Jul. 2014, Japanese, Domestic conference

  Others


• せん断変形を受ける埋設管のたわみ量の評価

  SAWADA YUTAKA, 泉 明良, 原田 文, 小林 成太, KAWABATA TOSHINORI

  第49回地盤工学研究発表会, Jul. 2014, Japanese, 北九州市, Domestic conference

  Oral presentation


• MECHANICAL CHARACTERISTICS OF ENVIRONMENTALLY-FRIENDLY BIODEGRADABLE RESIN CONCRETE

  Suzuki M, Kubo K, Sawada Y, Kawabata T

  Concrete Innovation Conference 2014, Jun. 2014, English, International conference

  Oral presentation


• 不均一な地盤条件における埋設管力学挙動に関する模型実験―ロゼット解析法による実験的検討―

  KAWABATA TOSHINORI

  H25年度農業農村工学会大会講演会, Sep. 2013, Japanese, 東京農業大学, Domestic conference

  Oral presentation


• 不均一な地盤条件における埋設管力学挙動に関する検討―長軸大口径管を対象とした3次元有限要素法解析

  KAWABATA TOSHINORI

  H25年度農業農村工学会大会講演会, Sep. 2013, Japanese, 東京農業大学, Domestic conference

  Oral presentation


• 損傷レベルの異なる老朽既設管の影響を受ける更生管の力学挙動

  KAWABATA TOSHINORI

  H25年度農業農村工学会大会講演会, Sep. 2013, Japanese, 東京農業大学, Domestic conference

  Oral presentation


• 生分解性樹脂コンクリートの劣化速度に関する一考察―4ケ月土中養生―

  鈴木麻里子, 久保京子, 秦栄三, 中村誠, 吉村睦, 鈴木武志, 河端俊典

  農業農村工学会大会講演会講演要旨集, Sep. 2013, Japanese, Domestic conference

  Others


• 生分解性樹脂コンクリートの劣化速度に関する一考察 -4ヶ月土中養生-

  KAWABATA TOSHINORI

  H25年度農業農村工学会大会講演会, Sep. 2013, Japanese, 東京農業大学, Domestic conference

  Oral presentation


• 生分解性コンクリートの劣化による圧縮強度変化および加水分解性に関する一考察

  鈴木麻里子, 久保京子, 秦栄三, 中村誠, 吉村睦, 鈴木武志, 河端俊典

  農業農村工学会大会講演会講演要旨集, Sep. 2013, Japanese, Domestic conference

  Poster presentation


• 生分解性コンクリートの劣化による圧縮強度変化および加水分解性に関する一考察

  KAWABATA TOSHINORI

  H25年度農業農村工学会大会講演会, Sep. 2013, Japanese, 東京農業大学, Domestic conference

  Oral presentation


• 老朽既設管の影響を受ける更生管力学挙動に関する偏心載荷実験

  KAWABATA TOSHINORI

  第48回地盤工学研究発表会, Jul. 2013, Japanese, 富山, Domestic conference

  Oral presentation


• 分解性樹脂コンクリートの力学的アプローチによる劣化進度評価—4ヶ月土中養生−

  KAWABATA TOSHINORI

  第48回地盤工学研究発表会, Jul. 2013, Japanese, 富山, Domestic conference

  Oral presentation


• 分解性樹脂コンクリートの力学的アプローチによる劣化進度評価―4ケ月土中養生―

  鈴木麻里子, 久保京子, 秦栄三, 中村誠, 吉村睦, 河端俊典

  地盤工学研究発表会発表講演集(CD-ROM), Jul. 2013, Japanese, Domestic conference

  Others


• 埋設管周辺部グリッド補強効果に関する単純せん断実験

  KAWABATA TOSHINORI

  農業農村工学会京都支部第69回研究発表会, Nov. 2012, Japanese, 新潟, Domestic conference

  Oral presentation


• 周辺地盤密度を考慮した不均一地盤における埋設管力学挙動に関する模型実験

  KAWABATA TOSHINORI

  農業農村工学会京都支部第69回研究発表会, Nov. 2012, Japanese, 新潟, Domestic conference

  Oral presentation


• 不均一地盤が埋設管挙動に与える影響に関する有限要素法解析

  KAWABATA TOSHINORI

  H25年度農業農村工学会大会講演会, Sep. 2012, Japanese, 北海道大学, Domestic conference

  Oral presentation


• 不均一地盤が埋設管挙動に与える影響に関する模型実験

  KAWABATA TOSHINORI

  H25年度農業農村工学会大会講演会, Sep. 2012, Japanese, 北海道大学, Domestic conference

  Oral presentation


• 剛体基礎上たわみ性埋設管の動的挙動

  KAWABATA TOSHINORI

  H25年度農業農村工学会大会講演会, Sep. 2012, Japanese, 北海道大学, Domestic conference

  Oral presentation


• 管路更生工法による曲管内面シワの水理特性

  KAWABATA TOSHINORI

  H25年度農業農村工学会大会講演会, Sep. 2012, Japanese, 北海道大学, Domestic conference

  Oral presentation


• ため池改修時における旧堤体土・池底汚泥再利用技術に関する一考察

  SUZUKI MARIKO, KAWABATA TOSHINORI, UCHIDA KAZUNORI

  農業農村工学会大会講演会講演要旨集, Sep. 2012, Japanese, Domestic conference

  Poster presentation


• ため池改修時における旧堤体土・池底汚泥再利用技術に関する一考察

  KAWABATA TOSHINORI

  H25年度農業農村工学会大会講演会, Sep. 2012, Japanese, 北海道大学, Domestic conference

  Oral presentation


• 不均一な地盤条件における埋設管力学挙動に関する模型実験

  KAWABATA TOSHINORI

  第47回地盤工学研究発表会, Jul. 2012, Japanese, 八戸工大, Domestic conference

  Oral presentation


• 不均一な地盤条件における埋設管の力学挙動に関する有限要素法解析

  KAWABATA TOSHINORI

  第47回地盤工学研究発表会, Jul. 2012, Japanese, 八戸工大, Domestic conference

  Oral presentation


• 内部応力に基づく円環断面の力学挙動算定

  KAWABATA TOSHINORI

  第47回地盤工学研究発表会, Jul. 2012, Japanese, 八戸工大, Domestic conference

  Oral presentation


• 管厚が地盤のせん断変形を受けるたわみ性埋設管の変形挙動に及ぼす影響

  KAWABATA TOSHINORI

  第47回地盤工学研究発表会, Jul. 2012, Japanese, 八戸工大, Domestic conference

  Oral presentation


• せん断土槽を用いた同一環剛性を有するたわみ性埋設管の振動台実験に関する一考察

  KAWABATA TOSHINORI

  第47回地盤工学研究発表会, Jul. 2012, Japanese, 八戸工大, Domestic conference

  Oral presentation


• Deposited Muddy Soil Reuse Technique Using Industrial Waste for Reconstruction of Small Earth fill Dams

  Suzuki M, Kawabata T, Uchida K, Suzuki T

  -, Jun. 2012, English, International conference

  Oral presentation


• 地盤のせん断変形を受けるたわみ性埋設パイプの変形挙動に関する模型実験

  KAWABATA TOSHINORI

  農業農村工学会京都支部第68回研究発表会, Nov. 2011, Japanese, 奈良, Domestic conference

  Oral presentation


• 管剛性が地盤のせん断変形を受ける埋設管の挙動に与える影響

  KAWABATA TOSHINORI

  農業農村工学会京都支部第68回研究発表会, Nov. 2011, Japanese, 奈良, Domestic conference

  Oral presentation


• 管厚の変化が薄肉円環の応力挙動に与える影響に関する検討

  KAWABATA TOSHINORI

  農業農村工学会京都支部第68回研究発表会, Nov. 2011, Japanese, 奈良, Domestic conference

  Oral presentation


• ため池コア材への底泥土再利用技術に関する実験的検討

  KAWABATA TOSHINORI

  農業農村工学会京都支部第68回研究発表会, Nov. 2011, Japanese, 奈良, Domestic conference

  Oral presentation


• 流動化処理土を用いた軽量曲管スラスト対策工の現場実証実験

  KAWABATA TOSHINORI

  H23年度農業農村工学会大会講演会, Sep. 2011, Japanese, 九州大, Domestic conference

  Oral presentation


• 管口径が地盤のせん断変形を受ける埋設管の挙動に及ぼす影響

  KAWABATA TOSHINORI

  H23年度農業農村工学会大会講演会, Sep. 2011, Japanese, 九州大, Domestic conference

  Oral presentation


• パイプラインの評価・診断技術の適用性の確認

  KAWABATA TOSHINORI

  H23年度農業農村工学会大会講演会, Sep. 2011, Japanese, 九州大, Domestic conference

  Oral presentation


• ため池コア部への底泥土再利用に大型混錬機を用いる検討

  鈴木麻里子, 河端俊典, 吉原正博, 常友永市, 内田一徳

  農業農村工学会大会講演会講演要旨集, Sep. 2011, Japanese, Domestic conference

  Poster presentation


• ため池コア部への底泥土再利用に大型混錬機を用いる検討

  KAWABATA TOSHINORI

  H23年度農業農村工学会大会講演会, Sep. 2011, Japanese, 九州大, Domestic conference

  Oral presentation


• せん断変形をうけるたわみ性埋設管の変形挙動に関する実験的検討

  KAWABATA TOSHINORI

  H23年度農業農村工学会大会講演会, Sep. 2011, Japanese, 九州大, Domestic conference

  Oral presentation


• Mechanical behavior of blended geo-materials for impermeable core zone of small earth-fill dams using recycled materials

  Kawabata T, Suzuki M, Uchida K, Suzuki T

  International Symposium on Deformation Characteristics of Geomaterials, Deformation Characteristics of Geomaterials, Vol.2, Hanrimwon Co.,Ltd., Sep. 2011, English, International conference

  Oral presentation


• Airy の応力関数を用いた埋設管内部応力挙動精査

  KAWABATA TOSHINORI

  H23年度農業農村工学会大会講演会, Sep. 2011, Japanese, 九州大, Domestic conference

  Oral presentation


• 埋設管の挙動予測における薄肉円環の構造解の適用限界に関する一考察

  KAWABATA TOSHINORI, UCHIDA KAZUNORI

  46 回地盤工学研究発表会, Jul. 2011, Japanese, 神戸, Domestic conference

  Oral presentation


• 地盤のせん断変形を受ける剛性埋設パイプの浮上に関するDEM解析

  KAWABATA TOSHINORI

  46 回地盤工学研究発表会, Jul. 2011, Japanese, 神戸, Domestic conference

  Oral presentation


• 地盤のせん断変形を受けるたわみ性埋設パイプの変形挙動に関する一考察

  KAWABATA TOSHINORI

  46 回地盤工学研究発表会, Jul. 2011, Japanese, 神戸, Domestic conference

  Oral presentation


• 大型混錬機を用いたため池底泥土のコア材への適用に関する一考察

  鈴木麻里子, 河端俊典, 吉原正博, 常友永市, 内田一徳

  地盤工学研究発表会発表講演集(CD-ROM), Jul. 2011, Japanese, Domestic conference

  Others


• 大型混錬機を用いたため池底泥土のコア材への適用に関する一考察

  KAWABATA TOSHINORI

  46 回地盤工学研究発表会, Jul. 2011, Japanese, 神戸, Domestic conference

  Oral presentation


• ため池コア材への底泥土再利用技術に関する実験的検討

  SUZUKI MARIKO, KAWABATA TOSHINORI, UCHIDA KAZUNORI

  農業農村工学会京都支部研究発表会講演要旨集, 2011, Japanese, Domestic conference

  Others


• 砕石を用いた曲管部スラスト防護工法の水平載荷試験

  KAWABATA TOSHINORI

  農業農村工学会京都支部第67回研究発表会, Nov. 2010, Japanese, 津, Domestic conference

  Oral presentation


• 流動化処理土を用いた大口径パイプラインの埋設とその有効性について

  KAWABATA TOSHINORI

  H22年度農業農村工学会大会, Sep. 2010, Japanese, 神戸大学, Domestic conference

  Oral presentation


• 耐震性を考慮した軽量スラスト防護工法の解析的検討

  KAWABATA TOSHINORI

  H22年度農業農村工学会大会, Sep. 2010, Japanese, 神戸大学, Domestic conference

  Oral presentation


• パイプラインにおける適切な機能保全のための診断手法の検討

  KAWABATA TOSHINORI

  H22年度農業農村工学会大会講演会, Sep. 2010, Japanese, 神戸大学, Domestic conference

  Oral presentation


• 同一剛性を有する管厚の異なる低外圧剛性たわみ性パイプの埋設実験

  KAWABATA TOSHINORI

  第45 回地盤工学研究発表会論文集, Aug. 2010, Japanese, 愛媛大学, Domestic conference

  Oral presentation


• 鉄筋補強流動化処理土の曲げ特性

  KAWABATA TOSHINORI

  第45 回地盤工学研究発表会論文集, Aug. 2010, Japanese, 愛媛大学, Domestic conference

  Oral presentation


• 浅埋設圧力管路屈曲部のスラスト防護挙動に関する模型実験

  KAWABATA TOSHINORI

  第45 回地盤工学研究発表会論文集, Aug. 2010, Japanese, 愛媛大学, Domestic conference

  Oral presentation


• 浅埋設圧力管路屈曲部のスラスト防護挙動に関するDEM解析

  KAWABATA TOSHINORI

  第45 回地盤工学研究発表会論文集, Aug. 2010, Japanese, 愛媛大学, Domestic conference

  Oral presentation


• 環境に配慮したブレンドコア用土の力学挙動に関する検討

  UCHIDA KAZUNORI, SUZUKI MARIKO, KAWABATA TOSHINORI

  地盤工学研究発表会発表講演集, Aug. 2010, Japanese, Domestic conference

  Others


• 環境に配慮したブレンドコア用土の力学挙動に関する検討

  KAWABATA TOSHINORI

  第45 回地盤工学研究発表会論文集, Aug. 2010, Japanese, 愛媛大学, Domestic conference

  Oral presentation


• DEM解析による単純せん断を受ける矩形洪水吐の動的挙動の検討

  KAWABATA TOSHINORI

  第45 回地盤工学研究発表会論文集, Aug. 2010, Japanese, 愛媛大学, Domestic conference

  Oral presentation


• Creation of the Soil for Impermeable Core Zone for Earth-fill Dams

  Kawabata T, Suzuki M, Suzuki T, Uchida K

  20th Int. Conf. of ISOPE, Jun. 2010, English, International conference

  Oral presentation


• Field verification test for buried bend with lightweight thrust restraint using geogrid

  Kawabata T, Sawada Y, Izumi A, Kashiwagi A, Hanazawa T, Okuno S, Suzuki M

  Proceedings of International Geosynthetics Society, May 2010, English, International conference

  Oral presentation


• 台形の中空ゴムシールを用いた目地補修工法の変形追従性と止水性

  青柳邦夫, 小澤忠利, 河端俊典, 鈴木麻里子

  農業農村工学会京都支部研究発表会講演要旨集, Nov. 2009, Japanese, Domestic conference

  Others


• 産業廃棄物をブレンドしたコア用土の水質特性に関する実験的検討

  内田一徳, 斉田洋之, 鈴木麻里子, 岩出郁美, 河端俊典

  農業農村工学会大会講演会講演要旨集, Aug. 2009, Japanese, Domestic conference

  Others


• ブレンドしたため池コア用土の溶出成分特性に関する検討

  内田一徳, 斉田洋之, 河端俊典, 岩出郁美, 鈴木麻里子, 鈴木武志

  地盤工学研究発表会発表講演集, Aug. 2009, Japanese, Domestic conference

  Others


• 内圧管屈曲部背面地盤の補強効果に関する検討

  柏木 歩, SAWADA YUTAKA, KAWABATA TOSHINORI, 毛利 栄征, 有吉 充, 花澤 貴文, 志村 和信, 中島 博文

  平成20年度農業農村工学会京都支部講演会, Nov. 2008, Japanese, 福井市, Domestic conference

  Oral presentation


• 多孔質体の物理特性と分散性の関係

  Misa TABATA, Kazuya INOUE, Toshinori KAWABATA, Kazunori UCHIDA, Tsutomu TANAKA

  平成20年度農業農村工学会京都支部講演会, Nov. 2008, Japanese, 福井市, Domestic conference

  Oral presentation


• 圧力管曲部軽量スラスト防護工法の動的挙動の検討

  泉 明良, KAWABATA TOSHINORI, SAWADA YUTAKA, 毛利 栄征, 有吉 充, UCHIDA KAZUNORI

  平成20年度農業農村工学会京都支部講演会, Nov. 2008, Japanese, 福井市, Domestic conference

  Oral presentation


• 埋設曲管スラスト対策に関する振動台実験

  泉 明良, KAWABATA TOSHINORI, SAWADA YUTAKA, 毛利 栄征, 有吉 充, UCHIDA KAZUNORI

  平成20年度農業農村工学会大会講演会, Aug. 2008, Japanese, 秋田市, Domestic conference

  Oral presentation


• 埋設管曲部軽量スラスト防護工法の現場実証試験

  KAWABATA TOSHINORI, SAWADA YUTAKA, 泉 明良, 花澤 貴文, 戸継 昭人, 平井 貴雄, 武田 久和, 福田 武治

  平成20年度農業農村工学会大会講演会, Aug. 2008, Japanese, 秋田市, Domestic conference

  Oral presentation


• 時間モーメント情報による分散特性評価と透水係数推定への応用

  Kazuya INOUE, Misa TABATA, Toshinori KAWABATA, Kazunori UCHIDA, Tsutomu TANAKA

  平成20年度農業農村工学会大会, Aug. 2008, Japanese, 秋田市, Domestic conference

  Oral presentation


• ジオグリッドを用いた曲管部背面地盤の補強効果に関する模型実験

  柏木 歩, KAWABATA TOSHINORI, SAWADA YUTAKA, 毛利 栄征, 花澤 貴文, 志村 和信, 中島 博文

  平成20年度農業農村工学会大会講演会, Aug. 2008, Japanese, 秋田市, Domestic conference

  Oral presentation


• DEMによる曲管部背面地盤の補強効果検討

  SAWADA YUTAKA, 灘本 優太, KAWABATA TOSHINORI, 毛利 栄征, 花澤 貴文, 中島 博文, 志村 和信, UCHIDA KAZUNORI

  平成20年度農業農村工学会大会講演会, Aug. 2008, Japanese, 秋田市, Domestic conference

  Oral presentation


• 埋設管曲部軽量スラスト防護工法の振動台実験

  KAWABATA TOSHINORI, 毛利 栄征, SAWADA YUTAKA, 泉 明良, 有吉 充, 藤本 夏子

  第43回地盤工学研究発表会, Jul. 2008, Japanese, 広島市, Domestic conference

  Oral presentation


• 背面地盤を補強した曲管部の水平載荷実験

  KAWABATA TOSHINORI, SAWADA YUTAKA, 柏木 歩, 花澤 貴文, 毛利 栄征, UCHIDA KAZUNORI

  第43回地盤工学研究発表会, Jul. 2008, Japanese, 広島市, Domestic conference

  Oral presentation


• 背面地盤の補強による曲管部の水平抵抗力増加メカニズム

  SAWADA YUTAKA, KAWABATA TOSHINORI, 毛利 栄征, 灘本 優太, 柏木 歩, UCHIDA KAZUNORI

  第43回地盤工学研究発表会, Jul. 2008, Japanese, 広島市, Domestic conference

  Oral presentation


• ため池底泥土の分散能に関する一考察

  Kazuya INOUE, Misa TABATA, Toshinori KAWABATA, Kazunori UCHIDA, Tsutomu TANAKA

  平成19年度農業農村工学会京都支部講演会, Nov. 2007, Japanese, 和歌山市, Domestic conference

  Oral presentation


• DEMを用いた一次元上昇浸透流による地盤の限界状態と砂粒子の力学的特性

  Hirose Tetsuo, Tanaka Tsutomu, Uchida Kazunori, Kawabata Toshinori, Nakase Hitoshi

  農業土木学会京都支部第64回研究発表会講演要旨集, Nov. 2007, Japanese, 農業土木学会, 和歌山県、和歌山市, Domestic conference

  Oral presentation


• 層地盤内の物質輸送に関する時間モーメント特性評価

  Kazuya INOUE, Toshinori KAWABATA, Kazunori UCHIDA, Tsutomu TANAKA

  平成19年度農業農村工学会大会, Aug. 2007, Japanese, 島根県松江市, Domestic conference

  Oral presentation


• 曲管部軽量化スラスト防護工法の有効性の検討

  SAWADA YUTAKA, KAWABATA TOSHINORI, 毛利 栄征, UCHIDA KAZUNORI

  平成18年度農業土木学会大会講演会, Aug. 2007, Japanese, 宇都宮市, Domestic conference

  Oral presentation


• 圧力管曲部軽量スラスト防護工法の内圧負荷実験

  SAWADA YUTAKA, KAWABATA TOSHINORI, 柏木 歩, 毛利 栄征, UCHIDA KAZUNORI

  平成19年度農業土木学会大会講演会, Aug. 2007, Japanese, 松江市, Domestic conference

  Oral presentation


• 圧力管曲部軽量スラスト防護工法の増加水平抵抗力の算定

  SAWADA YUTAKA, KAWABATA TOSHINORI, 毛利 栄征, UCHIDA KAZUNORI

  平成19年度農業土木学会大会講演会, Aug. 2007, Japanese, 松江市, Domestic conference

  Oral presentation


• ジオシンセティックスを用いた曲管部の内圧負荷挙動について

  SAWADA YUTAKA, 大串 賢, KAWABATA TOSHINORI, 戸継 昭人, 弘中 淳一, 毛利 栄征, UCHIDA KAZUNORI

  第42回地盤工学研究発表会, Aug. 2007, Japanese, 名古屋市, Domestic conference

  Oral presentation


• ジオグリッドを用いた補強地盤の模型透水実験

  Kazunori UCHIDA, Toshinori KAWABATA, Kazuya INOUE, Tetsuya MATSUKAWA, KOUHEI MATSUDA

  平成19年度農業農村工学会大会, Aug. 2007, Japanese, 島根県松江市, Domestic conference

  Oral presentation


• DEMを用いた地盤の一次元上昇流による浸透破壊と砂粒子移動特性の把握

  Hirose Tetsuo, Tanaka Tsutomu, Uchida Kazunori, Kawabata Toshinori, Nakase Hitoshi

  平成19年度農業土木学会大会講演会講演要旨集, Aug. 2007, Japanese, 農業土木学会, 島根県、松江市, Domestic conference

  Oral presentation


• 圧力管屈曲部軽量スラスト防護工法の曲管変位を考慮した増加抵抗力算定式の提案

  SAWADA YUTAKA, KAWABATA TOSHINORI, UCHIDA KAZUNORI, 柏木 歩, 毛利 栄征

  第42回地盤工学研究発表会, Jul. 2007, Japanese, 名古屋市, Domestic conference

  Oral presentation


• ため池底泥土の移流分散特性に関する検討

  Kazuya INOUE, Toshinori KAWABATA, Kazunori UCHIDA, Tsutomu TANAKA

  成18年度日本雨水資源化システム学会, Nov. 2006, Japanese, 山口市, Domestic conference

  Oral presentation


• ジオシンセティックスを用いた曲管部軽量スラスト防護工法による水平抵抗力の算定

  SAWADA YUTAKA, KAWABATA TOSHINORI, 高見 美和子, 渡邊 康治, UCHIDA KAZUNORI

  第41回地盤工学研究発表会, Aug. 2006, Japanese, 鹿児島市, Domestic conference

  Oral presentation


• 超大口径薄肉パイプラインの埋設挙動に関する検討

  河端 俊典, 毛利 栄征, 小田 哲也, 松川 哲也

  不明, Jul. 2005, Japanese, 不明, 不明, Domestic conference

  Oral presentation


• 軽量スラスト防護工法に関する水平載荷試験の地表面画像解析

  河端 俊典, 内田 一徳, 澤田 豊, 高見 美和子

  第40回地盤工学研究発表会講演集, Jul. 2005, Japanese, 不明, 函館, Domestic conference

  Oral presentation


• 軽量スラスト防護工法に関する水平載荷試験の地表面画像解析

  KAWABATA TOSHINORI, UCHIDA KAZUNORI, SAWADA YUTAKA, 高見 美和子

  第40回地盤工学研究発表会, Jul. 2005, Japanese, 函館市, Domestic conference

  Oral presentation


• 軽量スラスト防護工法における抵抗メカニズムに関するDEM 解析

  河端 俊典, 内田 一徳, 澤田 豊, 北野 知洋

  第40回地盤工学研究発表会講演集, Jul. 2005, Japanese, 不明, 函館, Domestic conference

  Oral presentation


• 軽量スラスト防護工法における抵抗メカニズムに関するDEM解析

  KAWABATA TOSHINORI, UCHIDA KAZUNORI, SAWADA YUTAKA, 北野 知洋, 中瀬 仁, 平井 貴雄, 斉藤 喜久雄

  第40回地盤工学研究発表会, Jul. 2005, Japanese, 函館市, Domestic conference

  Oral presentation


• まさ土における部分拡幅杭の支持機構に関する検討

  内田 一徳, 河端 俊典, 正田 大輔, 小原 亜季

  第40回地盤工学研究発表会講演集, Jul. 2005, Japanese, 不明, 函館, Domestic conference

  Oral presentation


• DEM による埋設管の浮上に関する単純せん断シミュレーション

  大石 順司, 河端 俊典, 内田 一徳, 高辻 祥子

  第40回地盤工学研究発表会講演集, Jul. 2005, Japanese, 不明, 函館, Domestic conference

  Oral presentation


• DEM解析による部分拡幅杭の支持機構に関する検討

  内田 一徳, 河端 俊典, 今井 正幸, 正田 大輔, 中瀬 仁

  H16年度農業土木学会大会, Sep. 2004, Japanese, 農業土木学会, 札幌, Domestic conference

  Oral presentation


• 部分拡幅杭の支持機構に関する検討

  内田 一徳, 河端 俊典, 中瀬 仁, 正田 大輔, 今井 正幸, 大石 順司

  第39回地盤工学研究発表会, Jul. 2004, Japanese, 地盤工学会, 新潟, Domestic conference

  Oral presentation


• 地中構造物の浮上に関する単純せん断試験

  河端 俊典, 内田 一徳, 中瀬 仁, 大石 順司, 澤田 豊

  第39回地盤工学研究発表会, Jul. 2004, Japanese, 地盤工学会, 新潟, Domestic conference

  Oral presentation


• 浅埋設パイプの土嚢による輸荷重分散効果に関するDEM解析

  河端 俊典, 内田 一徳, 有吉 充, 中瀬 仁, 毛利 栄征

  第39回地盤工学研究発表会, Jul. 2004, Japanese, 地盤工学会, 新潟, Domestic conference

  Oral presentation


• ため池底樋に作用する土圧の検討

  河端 俊典, 内田 一徳, 毛利 栄征, 平井 貴雄, 中瀬 仁, 大石 順司, 澤田 豊

  第39回地盤工学研究発表会, Jul. 2004, Japanese, 地盤工学会, 新潟, Domestic conference

  Oral presentation


• ジオグリッドを用いた曲管のスラスト防護工法に関する水平載荷試験

  河端 俊典, 内田 一徳, 平井 貴雄, 斉藤 喜久雄, 平山 豪隆

  第39回地盤工学研究発表会, Jul. 2004, Japanese, 地盤工学会, 新潟, Domestic conference

  Oral presentation


• 模型実験による部分拡幅杭の支持機構に関する検討

  河端 俊典, 内田 一徳, 大石 順司, 呉山 和男

  第38回地盤工学研究発表会講演集, Jul. 2003, Japanese, 地盤工学会, 秋田, Domestic conference

  Oral presentation


• DEM による部分拡幅杭の支持機構に関する検討

  内田 一徳, 河端 俊典, 今井 正幸, 中瀬 仁

  第38回地盤工学研究発表会講演集, Jul. 2003, Japanese, 地盤工学会, 秋田, Domestic conference

  Oral presentation

• 日本地震工学会


• 国際ジオシンセティックス学会


• 農業土木学会


• 土木学会


• 米国土木学会


• 国際基礎土質工学会


• 地盤工学会

• 老朽開水路内に配管される圧力パイプラインの力学挙動の解明と耐震設計手法の確立

  河端 俊典, 井上 一哉, 澤田 豊, 毛利 栄征

  日本学術振興会, 科学研究費助成事業, 基盤研究(A), 神戸大学, 01 Apr. 2020 - 31 Mar. 2023

  既設開水路内に管路を敷設する開水路内配管工法の確立を目標に，老朽化した開水路内に設置された管路屈曲部を対象にスラスト力を模擬した水平力を負荷する実験を実施してきた．令和2年度に実施した模型実験では，載荷中に模型管が軸方向に回転し，正確に水平抵抗力が計測できていないことが明らかとなった．そこで，令和3年度には，載荷装置を改良し，同条件での実験を実施した．概ね前年度と同様の結論を得たが，水路底板と水路壁が固定された実験条件では，管と開水路模型が一体となり挙動する様子が観察され，前年度と異なる新たな知見を得た．また，管と水路壁の間の距離を変えた条件での実験ケースについて，より詳細な検討を行い，本研究で実施された埋設条件では，距離と抵抗力が概ね線形で近似できることを示すとともに，画像解析を通して，管および水路壁周辺地盤の変形挙動ならびに抵抗力発揮メカニズムを解明した．さらに，既設開水路内に2本の管路が敷設される二条配管時の力学挙動を解明するため，2本の模型管に定荷重を負荷した載荷実験に着手し，現在までに基本ケースの実験を終了した． 上記のスラスト力を受ける管路屈曲部の力学挙動の検討に加え，管底側部の応力集中の緩和を目的としたEPS基礎を提案し，その有効性についても実験的に検証してきた．令和2年度に実施した模型実験では，模型管の外径が165mmと小さく，一部のEPS基礎では，応力集中を抑制する効果が確認できなかった．そこで令和3年度には，模型管の外径を313mmとし，地盤の相対密度を前年度の30%から60%に変更することで，より実際に近い埋設条件を再現した．実験結果よりEPS基礎を用いた全てのケースで管底側部の応力集中を抑制する効果が確認された．


• 農業用継手管路屈曲部の力学挙動の解明ならびにその耐震性強化・長寿命化の確立

  河端 俊典

  科学研究費補助金／基盤研究(A), Apr. 2017 - Mar. 2020, Principal investigator

  Competitive research funding


• Development of integrated seismic estimation technology for failure and deformation due to liquefaction during earthquakes in agricultural small pond

  MOHRI Yoshiyuki, TAGASHIRA HIDEKAZU, IZUMI AKIRA

  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Ibaraki University, 01 Apr. 2016 - 31 Mar. 2019

  We developed a ring shear test apparatus that can clarify the deformation and strength deterioration characteristics up to very large strain, and based on the test results, we developed a "generalized standard strength reduction model" that can be applied to the pond embankment soil. The model considering strength reduction due to this cumulative damage was introduced to the finite element method analysis, and the earthquake behavior of the embankment and its residual deformation prediction simulation were carried out. The simulation well predicts the results of seismic response behavior, progressive failure mode and residual deformation of the embankment obtained by the model tests of the pond embankment using a centrifugal loading device. Therefore, it has been confirmed that the generalized standard strength reduction model and finite element analysis using this model, plastic slip analysis have high applicability as an integrated seismic diagnostic system.


• 廃棄物処分場で利用されるシートはため池の遮水材となり得るのか？

  河端 俊典

  学術研究助成基金助成金／挑戦的萌芽研究, Apr. 2016 - Mar. 2018, Principal investigator

  Competitive research funding


• 理学・工学・農学・海事科学・システム情報学の研究体験

  河端 俊典

  国立研究開発法人科学技術振興機構, 日本・アジア青少年サイエンス交流事業（さくらサイエンスプラン）, 2017, Principal investigator

  Competitive research funding


• 生分解性機能を有した環境配慮型高剛性土木材料開発への挑戦

  河端 俊典

  学術研究助成基金助成金／挑戦的萌芽研究, Apr. 2013 - Mar. 2015, Principal investigator

  Competitive research funding


• 管路更生工法の力学挙動の解明ならびに耐震性を考慮した限界状態設計手法の確立と検証

  河端 俊典

  科学研究費補助金／基盤研究(A), Apr. 2012 - Mar. 2015, Principal investigator

  Competitive research funding


• 環境に優しく安価で力学的に安定したため池コア用土ブレンド技術の確立と検証

  内田 一徳

  科学研究費補助金／基盤研究(B), 2010

  Competitive research funding


• 環境負荷・耐震性を考慮した薄肉パイプラインの限界状態設計法の確立と検証

  河端 俊典

  科学研究費補助金／基盤研究(A), 2008, Principal investigator

  Competitive research funding


• ジオシンセティクスを用いた農業用水用パイプラインの耐震工法の研究開発

  河端 俊典

  科学研究費補助金／基盤研究(B), 2005 - 2007, Principal investigator

  Competitive research funding


• 低コストで耐震性強化・環境配慮対策可能なため池改修技術の研究

  内田 一徳

  科学研究費補助金／基盤研究(A), 2005

  Competitive research funding


• Research of the behavior for buried flexible outlet conduit under the earth dam

  KAWABATA Toshinori, UCHIDA Kazunori, TANAKA Tsutomu

  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B), Grant-in-Aid for Scientific Research (B), Kobe University, 2002 - 2004

  The behavior of buried flexible pipe is influenced to a considerable extent by the properties of the backfill materials. Recently, geosynthetics are commonly used in retaining wall for reinforcement. And flexible pipe is used for drainage in such embankment. However, the behavior of buried flexible pipe in the retaining wall reinforced by geosynthetics is not clear. Experiments using a middle-sized steel test pit were carried out to examine the behavior of a flexible pipe buried in a reinforced embankment with settlement. A bi-axial load cell was developed in order to accurately measure the load acting on the buried pipe, and a model pipe, which was equipped with 20 such load cells was made. The result showed that with settlement of the pipe, the arching action of the backfill progress, and the vertical load that acts on the pipe greatly decreases. In addition, it was found that when backfill with sand and geogrid was used, the vertical load act on the pipe was distributed by the geogrid, hence decreasing by approximately 25% the overburden load. In the future, it is necessary to examine the effects of the installed position of the geogrid and number of layers of the geogrid.