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Development of particle based numerical model taking into account morphological changes in clay minerals and microscopic understanding of slaking phenomena

Research Project

Project/Area Number 19K15085
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 22030:Geotechnical engineering-related
Research InstitutionNagaoka University of Technology

Principal Investigator

Fukumoto Yutaka  長岡技術科学大学, 工学研究科, 准教授 (60757350)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsスレーキング / 風化 / 個別要素法 / 粒状体 / 粒子シミュレーション / 亀裂 / Peridynamics / 粘土鉱物
Outline of Research at the Start

地盤材料のスレーキング現象を従来とは異なる微視的な視点で捉えることで,その発生・進行要因の定量的な分類と整理を可能とする.その方法として,まずは,粘土鉱物の形状と大きさが物理的・化学的作用に応じて変化する過程(=形態変化)を考慮できる粒子計算モデルを新規に開発する.そして,土質試験/模型実験で得られた結果にもとづいて,モデル係数の決定方法などを含めた粒子計算モデルの高度化をおこなう.最後に,3次元でのデジタル泥岩の乾湿繰り返しシミュレーションを,室内実験では再現不可能な様々な条件のもとで実行することで,どの要因がどれだけスレーキングを促進させているのかを明らかにする.

Outline of Final Research Achievements

We developed a particle-based numerical model to understand the slaking phenomenon of geomaterials from a microscopic viewpoint. A DEM (Distinct Element Method) model that takes into account changes in the size of the region occupied by clay minerals and a coupled peridynamics and the DEM model that can take into account fracture behavior with crack propagation are investigated.

Academic Significance and Societal Importance of the Research Achievements

スレーキングは,道路盛土や自然斜面・切土斜面の崩壊の原因となりうるため,その発生機構を詳細に理解することは予期せぬ地盤災害を軽減するうえで重要な課題である.本研究で開発した粒子計算モデルを今後も発展させることができれば,複雑なスレーキング現象の進行要因の定量的な分類と整理ができる可能性がある.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (16 results)

All 2022 2021 2020 2019 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 3 results) Remarks (1 results)

  • [Journal Article] Effect of water contents and initial crack lengths on mechanical properties and failure modes of pre-cracked compacted clay under uniaxial compression2022

    • Author(s)
      Shimbo Taiki、Shinzo Chisato、Uchii Ukyo、Itto Ryota、Fukumoto Yutaka
    • Journal Title

      Engineering Geology

      Volume: 301 Pages: 106593-106593

    • DOI

      10.1016/j.enggeo.2022.106593

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 2-D coupled fluid-particle numerical analysis of seepage failure of saturated granular soils around an embedded sheet pile with no macroscopic assumptions2021

    • Author(s)
      Fukumoto Yutaka、Yang Hongxuan、Hosoyamada Tokuzo、Ohtsuka Satoru
    • Journal Title

      Computers and Geotechnics

      Volume: 136 Pages: 104234-104234

    • DOI

      10.1016/j.compgeo.2021.104234

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Validation of LBM simulation of saturated seepage flow through 3D-printed homogeneous porous medium for fluid-particle coupled analysis2021

    • Author(s)
      T. Kitao, Y. Fukumoto, K. Fujisawa, A. Jewel and A. Murakami
    • Journal Title

      Acta Geotechnica

      Volume: 16(8) Issue: 8 Pages: 2643-2656

    • DOI

      10.1007/s11440-021-01210-z

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Discrete particle simulation model for slaking of geomaterials including swelling clay minerals2019

    • Author(s)
      Y. Fukumoto and S. Ohtsuka
    • Journal Title

      International Journal of GEOMATE

      Volume: 16(54) Issue: 54 Pages: 134-139

    • DOI

      10.21660/2019.54.8230

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] A Numerical Model Based on Combined Peridynamics and Discrete Element Method for Fracture Behavior of Geomaterials2021

    • Author(s)
      Yutaka Fukumoto, Taiki Shimbo
    • Organizer
      COUPLED 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Implementation of the Drucker-Prager model for Ordinary State-Based Peridynamics using a Local plastic multiplier2021

    • Author(s)
      Taiki Shimbo, Tomoki Kawamura, Yutaka Fukumoto
    • Organizer
      USNCCM16
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PeridynamicsとDEMの連成による地盤材料の破砕挙動の数値計算モデル2021

    • Author(s)
      福元 豊,新保泰輝
    • Organizer
      第26回計算工学講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 初期亀裂を含む土の一軸圧縮シミュレーション:DEM及びPeridynamicsによる検討2021

    • Author(s)
      小室昂生,澤 知行,福元 豊,新保泰輝
    • Organizer
      第39回土木学会関東支部新潟会研究調査発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 3-D particle simulation model for weathering processes of geomaterials under a wet-dry cyclic condition2021

    • Author(s)
      Yutaka Fukumoto, Satoru Ohtsuka
    • Organizer
      IACMAG 2021
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 初期亀裂を含む土の一軸圧縮シミュレーション:DEM による検討2020

    • Author(s)
      澤 知行,花沢大輔,福元 豊,新保泰輝,一藤亮太
    • Organizer
      第38回土木学会関東支部新潟会研究調査発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] Peridynamicsを用いた亀裂を有する粘性土の一軸圧縮シミュレーション2020

    • Author(s)
      一藤亮太,澤 知行,花沢大輔,新保泰輝,福元 豊
    • Organizer
      令和2年度土木学会中部支部研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] 粒子サイズの変化を考慮した3次元DEMモデルによる地盤材料の風化過程の数値解析2019

    • Author(s)
      福元 豊,輪島僚也,立花賢吾,大塚 悟
    • Organizer
      第24回計算工学講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 膨張収縮を考慮した粒子計算モデルによる地盤材料の2次元風化シミュレーション2019

    • Author(s)
      立花賢吾,輪島僚也,福元 豊,大塚 悟
    • Organizer
      第54回地盤工学研究発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] 泥岩の風化進行にともなう強度変化に着目した2次元DEMシミュレーション2019

    • Author(s)
      花沢大輔,立花賢吾,福元 豊,大塚 悟
    • Organizer
      第37回土木学会関東支部新潟会研究調査発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] 土に対する粒子ベースの直接的な数値モデリング2019

    • Author(s)
      福元 豊
    • Organizer
      地盤工学会北陸支部地盤工学講演会
    • Related Report
      2019 Research-status Report
  • [Remarks] 個人webページ

    • URL

      https://whs.nagaokaut.ac.jp/edpl/yutakafukumoto/main_japanese.html

    • Related Report
      2021 Annual Research Report 2020 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

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