HASHIMOTO RYOTA

ハシモトリヨウタ | HASHIMOTO RYOTA

Affiliation and department：
Job title： Associate Professor

Research field (1)： Geotechnical engineering

Research theme for competitive and other funds (13)：

2023 - 2027 不飽和地盤の微生物固化プロセスシミュレータの開発:遺構の基礎修復の理想像に向けて
2022 - 2025 レオロジー特性に着目したセメント改良による既存の河川堤防の強化
2022 - 2024 耐越水堤防の総合的な性能評価を実現する地盤-構造-流体連成解析技術の開発
2021 - 2023 New developments in fluid and mixed grain size granular mechanics based on Available Porosity theory
2020 - 2023 Development of stability evaluation method for masonry retaining walls against multi-hazards of earthquake and rainfall

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Papers (33)：

Bodhinanda Chandra, Ryota Hashimoto, Ken Kamrin, Kenichi Soga. Mixed material point method formulation, stabilization, and validation for a unified analysis of free-surface and seepage flow. Journal of Computational Physics. 2024. 519. 113457-113457
Hiroshi UEZONO, Ryota HASHIMOTO. A coupled MPM-FDM for seepage failure analysis of saturated ground. Japanese Geotechnical Journal. 2024. 19. 1. 57-68
Bodhinanda CHANDRA, Ryota HASHIMOTO, Shinnosuke MATSUMI, Ken KAMRIN, Kenichi SOGA. Stabilized mixed material point method for incompressible fluid flow analysis. Computer Methods in Applied Mechanics and Engineering. 2024. 419. 116644
Yoshimitsu Yamada, Takashi Tsuchida, Nyan Myint Kyaw, Tatsuru Aoyama, Toshiya Akasaki, Moe Myint Su Hlaing, Ryota Hashimoto. Geotechnical properties of soft clays along Yangon River - Characteristics of soft clays in Thilawa Port area. Soils and Foundations. 2023. 63. 4. 101331-101331
Takashi TSUCHIDA, Riki KUROSHITA, Ryota HASHIMOTO, Erika YAMASHITA. Relationship between the initial water content of clay and the mixing quality of cement treated marine clay. Japanese Geotechnical Journal. 2022. 17. 1. 115-123

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MISC (5)：

土田孝, 大町正和, 橋本涼太, 梅本秀二. 住宅地に隣接した土石流危険渓流のセンシング. 環境システム計測制御学会誌. 2022. 26. 4. 54-59
橋本涼太. カリフォルニア大学バークリー校滞在記. 地盤工学会誌. 2022. 70. 1. 55-58
橋本涼太, 塩田絵里加. YMPG/YGESプログラム. 地盤工学会誌. 2020. 68. 6. 31-31
土田孝, 森脇武夫, 後藤順治, 今井卓也, 川本暁, 橋本涼太. 平成30年7月豪雨における地域ごとの地盤災害の特徴(中国・広島その2). 地盤工学会誌. 2019. 67. 7. 14-17
橋本涼太, 森脇武夫, 土田孝. 平成30年7月豪雨における地域ごとの地盤災害の特徴(中国・広島その1). 地盤工学会誌. 2019. 67. 7. 10-13

Books (2)：

平成30年7月豪雨を踏まえた豪雨地盤災害に対する地盤工学の課題-地盤工学からの提言-
2019
2018年7月西日本豪雨災害調査報告書
地盤工学会中国支部 2018

Lectures and oral presentations (90)：

A fully implicit continuum-discontinuum method for geotechnical problems
(The 4th International Workshops on Advances in Computational Mechanics 2024)
A Fully Implicit DDA and Its Validity for Seismic Analysis of Rock Slopes
(The Second International Young Scientists Forum for Discontinuous Deformation Analysis Time: August 2024)
大規模解析に向けた OpenMP による完全陰的不連続変形法の並列化
(第49回岩盤力学に関するシンポジウム 2023)
MPM-DDA による石垣振動台実験の再現解析における背面地盤のひずみ軟化の影響
(第49回岩盤力学に関するシンポジウム 2023)
二次元MPM-DDAによるバケット模型掘削実験の再現解析
(令和4年度土木学会全国大会第77回年次学術講演会 2022)

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Education (4)：

2014 - 2017 Kyoto University Graduate School of Engineering Department of Urban Management (Doctoral course)
2012 - 2014 Kyoto University Graduate School of Engineering Department of Urban Management (Master's course)
2008 - 2012 Kyoto University Faculty of Engineering Undergraduate School of Global Engineering
2005 - 2008 Koyo Gakuin High School

Professional career (1)：

Doctor of Engineering (Kyoto University)

Work history (6)：

2023/04 - 現在 Kyoto University Graduate School of Engineering Department of Civil and Earth Resources Engineering Associate Professor
2021/04 - 2023/03 Hiroshima University Graduate School of Advanced Science and Engineering Associate Professor
2021/06/01 - 2022/03/31 University of California, Berkeley Department of Civil and Environmental Engineering Visiting Scholar
2020/04/01 - 2021/03/31 Hiroshima University Graduate School of Advanced Science and Engineering Assistant Professor
2017/04/01 - 2020/03/31 Hiroshima University Graduate School of Engineering Assistant Professor

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Awards (20)：

2023/01 - 土木学会岩盤力学委員会第49回岩盤力学に関するシンポジウム優秀講演論文賞大規模解析に向けたOpenMPによる完全陰的不連続変形法の並列化
2022/08 - 地盤工学会第57回地盤工学研究発表会優秀論文発表者賞二次元MPM-DDAによる受働土圧解析
2022/06 - 一般社団法人岩の力学連合会理事長令和3年度岩の力学連合会論文賞 Improvement of discontinuous deformation analysis incorporating implicit updating scheme of friction and joint strength degradation
2022/04 - 公益社団法人地盤工学会中国支部支部長地盤工学会中国支部令和3年度「技術賞」豪雨時土砂災害避難体験VRの開発と防災教育への適用
2022/04 - 文部科学省令和4年度科学技術分野の文部科学大臣表彰若手科学者賞地盤と岩盤の力学に立脚した石積文化財の安定性評価法の研究

2021/06/11 - Japan Society of Civil Engineers JSCE Best Paper Award for Young Scholars Development of discontinuous deformation analysis (DDA) with an implicit integration algorithm of friction law

2021/01/15 - Japanese Society for Rock Mechanics The 15th Japan Symposium on Rock Mechanics Dynamic behavior of slope model piled steel hexagonal bar simulating discontinuous rock mass (Part 11) -Prediction by improved discontinuous deformation analysis-

2020/06/05 - Japanese Geotechnical Society Excellent International Conference Paper Award for Young Members Simple analytical model for ultimate bearing capacity estimation of historic masonry structure foundation

2020/01/10 - Rock Mechanics Committee of Japan Society of Civil Engineers The 47th Japanese Rock Mechanics Symposium Excellent Paper Award Simulation of shaking table test of masonry wall by NMM-DDA

2020/01/10 - Rock Mechanics Committee of Japan Society of Civil Engineers The 47th Japanese Rock Mechanics Symposium Excellent Paper Award Improvement of contact formulation of the discontinuous deformation analysis for rocking motion

2019/08/19 - Japanese Geotechnical Society The 54th Japan National Conference on Geotechnical Engineering Excellent Presentation Award Model loading experiment of composite foundation of soil and masonry stones using aluminum block and aluminum rods mass

2019/05/31 - The Maeda Engineering Foundation Maeda Engineering Award Development of Stability Evaluation Methods for Soil-Masonry Structure Interactive Problems and Application to Historic Structures

2019/01/13 - Rock Mechanics Committee of Japan Society of Civil Engineers The 46th Japanese Rock Mechanics Symposium Excellent Paper Award Simulation of shaking table test of discontinuous rock slope by fully implicit DDA considering dynamic friction

2018/06/15 - Japanese Society for Rock Mechanics JSRM Doctoral Thesis Award 2017 Development of Stability Evaluation Methods for Soil-Masonry Structure Interactive Problems and Application to Historic Structures

2018/03/31 - Chugoku Branch of Japanese Geotechnical Society "Jiban To Kensetsu" Best Paper Award A study on the bearing capacity characteristics of masonry structure foundation in Angkor, Cambodia

2018/01/17 - Rock Mechanics Committee of Japan Society of Civil Engineers The 45th Japanese Rock Mechanics Symposium Excellent Paper Award Development of discontinuous deformation analysis incorporating implicit integration of friction law

2015/12 - 日本材料学会関西支部日本材料学会関西支部第10回若手シンポジウムポスター支部長賞地盤数値解析法に基づく歴史的石積構造物の安定性検討

2014/10 - Japanese Geotechnical Society The 49th Japan National Conference on Geotechnical Engineering Excellent Presentation Award Stability analysis during ground excavation of Bayon temple in Angkor with NMM-DDA

2014/03 - Dept. of Urban Management, Kyoto University Honorable Urban Management Engineer Prize Developement of NMM-DDA incorporating elasto-plastic constitutive model of soil and its application to stability analysis of masonry structures.

2012/10 - Japanese Geotechnical Society The 47th Japan National Conference on Geotechnical Engineering Excellent Presentation Award Stability analysis of Prasat Suor Prat N1 Tower using elasto-plastic NMM-DDA

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Association Membership(s) (3)：

Japanese Society of Civil Engineers , Japanese Society for Rock Mechanics , Japanese Geotechnical Society

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