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Modeling of multiphase microstructural morphological changes of soil - Toward rebuilding soil deformation prediction technology

Research Project

Project/Area Number 20K20434
Project/Area Number (Other) 19H05509 (2019)
Research Category

Grant-in-Aid for Challenging Research (Pioneering)

Allocation TypeMulti-year Fund (2020)
Single-year Grants (2019)
Review Section Medium-sized Section 22:Civil engineering and related fields
Research InstitutionKyoto University

Principal Investigator

Higo Yosuke  京都大学, 経営管理研究部, 教授 (10444449)

Co-Investigator(Kenkyū-buntansha) 松島 亘志  筑波大学, システム情報系, 教授 (60251625)
大竹 雄  東北大学, 工学研究科, 准教授 (90598822)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥25,870,000 (Direct Cost: ¥19,900,000、Indirect Cost: ¥5,970,000)
Fiscal Year 2022: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2021: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2020: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2019: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Keywords土の形態変化 / ミクロスケール / 多相系 / マイクロメカニクスベースモデル / データサイエンス
Outline of Research at the Start

X線マイクロCTと画像解析によるミクロスケール多相系組織形態変化の抽出,マイクロメカニクスベースモデルの開発,データサイエンスを導入した不均質性のモデル化を実践する.これらの先端技術導入の一方で,既存の調査・実験で得られるごく基本的な物理量を用いた力学挙動の記述により,広範な土木実務者の地盤挙動解釈を飛躍的に深度化させる.さらに,可視化が困難な土構造物内部の物性値の分布を既存技術で得られる地盤情報から完全に構築する先駆的理論を提示する.

Outline of Final Research Achievements

Based on the multiphase microstructural morphological changes of soil particle, water and air phases, this study (1) models the strongly non-linear behaviour of soil with the fundamental physical quantities of soil mechanics and (2) models the inherent microscopic heterogeneity of soil as a granular material to the spatial variation of macro physical properties, thereby developing a technology for predicting geotechnical behaviour rooted in the physics of the soil particle and pore scale has been developed. Putting into practice recent innovations in experimentation, technology and theory: the extraction of micro-scale multiphase microstructural morphological changes using X-ray micro-CT and image analysis; the development of micromechanics-based models; and the modelling of heterogeneity by introducing data science.

Academic Significance and Societal Importance of the Research Achievements

土の挙動の源は,土粒子,間隙中の水,空気が形成する微視的なスケールの「組織形態」の幾何学的変化にある.本研究で実施した土の根源的性質である組織形態変化のモデル化は,X線マイクロCTと画像解析,マイクロメカニクスベースモデル,データサイエンスという,先端技術導入の一方で,既存の調査・実験で得られるごく基本的な物理量を用いた力学挙動の記述により,広範な土木実務者の地盤挙動解釈を飛躍的に深度化させることが可能とする.土粒子・間隙スケールの物理に根差した地盤挙動予測技術を構築することで,自然ハザードに対する土砂災害予測をはじめとする国土保全技術の向上に寄与し得る.

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Annual Research Report
  • Research Products

    (25 results)

All 2024 2023 2022 2021 2020

All Journal Article (11 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 11 results,  Open Access: 7 results) Presentation (14 results) (of which Int'l Joint Research: 8 results)

  • [Journal Article] A microscopic interpretation of hysteresis in the water retention curve of sand2024

    • Author(s)
      Higo Yosuke, Kido Ryunosuke
    • Journal Title

      Geotechnique

      Volume: - Pages: 1-9

    • DOI

      10.1680/jgeot.23.00084

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Introduction of density distribution in soil-water characteristic curve model with regular packing structure2023

    • Author(s)
      ESHIRO Shizuka、HIGO Yosuke
    • Journal Title

      Japanese Geotechnical Journal

      Volume: 18 Issue: 1 Pages: 17-30

    • DOI

      10.3208/jgs.18.17

    • ISSN
      1880-6341
    • Year and Date
      2023-03-01
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 3D SPATIAL DISTRIBUTION ESTIMATION OF GEOTECHNICAL PROPERTIES CONSIDERING NONSTATIONARY IN THE DEPTH DIRECTION AND IMPROVEMENT OF CALCULATION EFFICIENCY BY KRONECKER PRODUCT2023

    • Author(s)
      TOMIZAWA Yukihisa、TSUDA Yuto、YOSHIDA Ikumasa、OTAKE Yu
    • Journal Title

      Japanese Journal of JSCE

      Volume: 79 Issue: 15 Pages: n/a

    • DOI

      10.2208/jscejj.22-15056

    • ISSN
      2436-6021
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Challenges in geotechnical design revealed by reliability assessment: Review and future perspectives2022

    • Author(s)
      Otake Yu、Honjo Yusuke
    • Journal Title

      Soils and Foundations

      Volume: 62 Issue: 3 Pages: 101129-101129

    • DOI

      10.1016/j.sandf.2022.101129

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Liquid bridge contribution to shear behavior of unsaturated soil: modeling and application to a micromechanics model2021

    • Author(s)
      Fukushima Yo、Higo Yosuke、Matsushima Takashi、Otake Yu
    • Journal Title

      Acta Geotechnica

      Volume: 16 Issue: 9 Pages: 2693-2711

    • DOI

      10.1007/s11440-021-01263-0

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] RHEOLOGICAL AND MICROSTRUCTURAL CHARACTERISTICS IN GRANULAR SHEAR FLOW OF 2D ELLIPTICAL PARTICLES2021

    • Author(s)
      JIANG Xiaoyu、MATSUSHIMA Takashi
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))

      Volume: 77 Issue: 2 Pages: I_297-I_305

    • DOI

      10.2208/jscejam.77.2_I_297

    • NAID

      130008150524

    • ISSN
      2185-4661
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of disordered pore distribution on the fracture of brittle porous media studied by bonded DEM2021

    • Author(s)
      Huang Quanshui、Ma Gang、Matsushima Takashi、Zhou Wei、Lin Mingchun
    • Journal Title

      Soils and Foundations

      Volume: 61 Issue: 4 Pages: 1003-1017

    • DOI

      10.1016/j.sandf.2021.05.005

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effect of grain shape on the dynamics of granular materials in 2D rotating drum2021

    • Author(s)
      Preud’homme Nicolas、Opsomer Eric、Vandewalle Nicolas、Lumay Geoffroy
    • Journal Title

      EPJ Web of Conferences

      Volume: 249 Pages: 06002-06002

    • DOI

      10.1051/epjconf/202124906002

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Statistical properties of cell stresses in 2D granular solids2021

    • Author(s)
      Matsushima Takashi、Blumenfeld Raphael
    • Journal Title

      EPJ Web of Conferences

      Volume: 249 Pages: 02006-02006

    • DOI

      10.1051/epjconf/202124902006

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Estimation of trend and random components of conditional random field using Gaussian process regression2021

    • Author(s)
      Yoshida Ikumasa、Tomizawa Yukihisa、Otake Yu
    • Journal Title

      Computers and Geotechnics

      Volume: 136 Pages: 104179-104179

    • DOI

      10.1016/j.compgeo.2021.104179

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] VISUALIZATION OF MICRO MORPHOLOGY FOR SOIL MICROMECHANICS MODELING : AN APPLICATION OF SUPER-RESOLUTION TO X-RAY CT IMAGES2020

    • Author(s)
      ENDO Naoki、OTAKE Yu、HIGO Yosuke、MURAMATSU Shogo
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))

      Volume: 76 Issue: 2 Pages: I_35-I_44

    • DOI

      10.2208/jscejam.76.2_I_35

    • NAID

      130007980165

    • ISSN
      2185-4661
    • Related Report
      2020 Research-status Report 2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] MORPHOLOGICAL CHANGES IN DRAINAGE AND IMBIBITION REGIONS DURING WATER RETENTION TEST2024

    • Author(s)
      Shizuka Eshiro
    • Organizer
      IS-Grenoble 2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A MICROMECHANICS MODEL FOR UNSATURATED SOIL CONSIDERING LIQUID BRIDGE AND BULK WATER CONTRIBUTIONS TO SHEAR BEHAVIOR2024

    • Author(s)
      Yosuke Higo
    • Organizer
      IS-Grenoble 2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CONSTANT-VOLUME SHEAR RESPONSE OF 4-CELL ANALOGICAL MICROMECHANICS MODEL FOR GRANULAR SOIL2024

    • Author(s)
      Takashi Matsushima
    • Organizer
      IS-Grenoble
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characterization of water retention states in partially saturated sand based on morphology of pore water and pore air using X-ray micro computed tomography2022

    • Author(s)
      Kido Ryunosuke, Higo Yosuke
    • Organizer
      20th International Conference on Soil Mechanics and Geotechnical Engineering (ICSMGE 2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Visualization of fabric tensor of very loose saturated sand under undrained triaxial compression2022

    • Author(s)
      Ohtani Yuya, Kido Ryunosuke, Higo Yosuke
    • Organizer
      33rd KKHTCNN Symposium on Civil Engineering, Singapore
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Change in coordination number of pore water in unsaturated sand under triaxial compression2022

    • Author(s)
      Uehira Kento, Kido Ryunosuke, Higo Yosuke
    • Organizer
      33rd KKHTCNN Symposium on Civil Engineering, Singapore
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 土粒子構造の密度不均一性を考慮した理論的な水分特性曲線モデルの構築2022

    • Author(s)
      江城静順,肥後陽介
    • Organizer
      土木学会関西支部 2022年度 年次学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 規則充填構造を用いた水分特性曲線の推定における密度分布の導入とその適用範囲2022

    • Author(s)
      江城静順,肥後陽介
    • Organizer
      第 57 回地盤工学研究発表会
    • Related Report
      2022 Research-status Report
  • [Presentation] 水分特性曲線の推定における間隙の空気侵入値モデルの影響2022

    • Author(s)
      江城静順,肥後陽介
    • Organizer
      第66回理論応用力学講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 4-CELL ANALOGICAL MODEL TO DESCRIBE PLASTIC SHEAR BEHAVIOR OF GRANULAR SOLID2022

    • Author(s)
      T. Matsushima, Y. Higo, Y. Otake
    • Organizer
      International Conference on Nonlinear Solid Mechanics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 4-cell analogical model to describe plastic shear behavior of granular geomaterials2022

    • Author(s)
      T. Matsushima, Y. Higo, Y. Otake
    • Organizer
      33rd ALERT Geomaterials workshop
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 単一粒径砂における粒子間結合力へのサクション寄与効果のモデル化2020

    • Author(s)
      福島陽,肥後陽介,大竹雄,松島亘志
    • Organizer
      第55回地盤工学研究発表会
    • Related Report
      2020 Research-status Report 2019 Annual Research Report
  • [Presentation] 単一粒径砂における粒子間結合力への サクション寄与効果のMMモデルへの適用2020

    • Author(s)
      肥後陽介,福島陽,大竹雄,松島亘志
    • Organizer
      第55回地盤工学研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] 単一粒径砂における粒子間結合力へのサクション寄与効果のMMモデルへの適用2020

    • Author(s)
      肥後陽介,福島陽,大竹雄,松島亘志
    • Organizer
      第55回地盤工学研究発表会
    • Related Report
      2019 Annual Research Report

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Published: 2019-07-04   Modified: 2025-01-30  

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