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河川堤防崩壊現象解明のための3次元統合SPHモデルの開発

Research Project

Project/Area Number 10F00072
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Research Field Geotechnical engineering
Research InstitutionRitsumeikan University

Principal Investigator

深川 良一  立命館大学, 理工学部, 教授

Co-Investigator(Kenkyū-buntansha) BUI HaHong  立命館大学, 総合理工学研究機構, 外国人特別研究員
Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2011: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2010: ¥1,000,000 (Direct Cost: ¥1,000,000)
KeywordsSPH / 数値シミュレーション / 河川堤防 / 破壊 / 室内モデル実験 / 現地調査
Research Abstract

提案された研究は、河川堤防の破壊現象に関する地盤工学的、水理学的見地からの解明を目指す3次元統合SPHモデルの開発を主テーマとしている。申請書の当初研究計画では、研究プロジェクトは以下の3つのサブプロジェクトからなっていた。それぞれについて、研究成果の概要を示す。全体にほぼ当初目標を達成できたと判断している。
1.河川堤防崩壊をシミュレートする3次元統合SPHモデルの開発
従来より開発していた2次元SPHモデルをまず3次元に拡張することに成功した。さらに、このモデルを3次元斜面安定問題に適用し、3次元斜面崩壊現象をシミュレートした。次に、浸透流と河川流の効果を説明するために、統合型の2次元2相流SPHモデルを開発した。
2.室内実験による河川堤防崩壊メカニズムの検証
数値解析に加えて、河川堤防の崩壊メカニズムに及ぼす地盤工学的、水理学的影響を調べるために室内モデル実験を実施した。その結果、浸透流は河川堤防の安定に甚大な影響を及ぼすこと、特に急速な水位低下が発生する条件下で、外部から供給される浸透流の影響が大きいことが分かった。
3.河川堤防崩壊メカニズム実証のための現地調査の実施
現地における地盤特性、地下水特性を調べるために、ベトナム・サイゴン川河岸において、地層構造、河床プロフィル、河川流分布および地下水位変化を調査した。地層構造調査のためには、標準貫入試験とコーン貫入試験が本プロジェクトの対象地区であるThanhDa地区において実施された。対象地区における河床プロフィルと河川流分布に関しては、Acoustic Doppler Current Profiler(ADCP)が使用された。

Report

(2 results)
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (24 results)

All 2012 2011 2010

All Journal Article (13 results) (of which Peer Reviewed: 13 results) Presentation (11 results)

  • [Journal Article] An improved SPH method for saturated soils and its application to investigate the mechanisms of embankment failure : Case of hydrostatic pore-water pressure2012

    • Author(s)
      Bui H.H, Fukagawa R
    • Journal Title

      International Journal for Numerical and Analytical Methods in Geomechanics

      Volume: (in press) Issue: 1 Pages: 31-50

    • DOI

      10.1002/nag.1084

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Slope stability analysis and discontinuous slope failure simulation by elasto-plastic smoothed particle hydrodynamics (SPH)2011

    • Author(s)
      Bui H.H, Fukagawa R, Sako K, Wells J.C
    • Journal Title

      Geotechnique

      Volume: 61 Issue: 7 Pages: 565-574

    • DOI

      10.1680/geot.9.p.046

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Slope stability analysis and discontinuous slope failure simulation by elasto-plastic smoothed particle hydrodynamics (SPH)2011

    • Author(s)
      Ha H.Bui, R.Fukagawa, K.Sako, J.C.Wells
    • Journal Title

      Geotechnique

      Volume: Vo1.61(印刷中,掲載決定) Pages: 10-10

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measurement of pore-water and pore-air pressure in unsaturated soil2011

    • Author(s)
      K.Sako, T.Danjo, R.Fukagawa, Ha H.Bui
    • Journal Title

      The 5th Asia-Pacific Conference on Unsaturated Soils (AP-UNSAT), Thai Lan.

      Volume: (印刷中,掲載決定) Pages: 8-8

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A SPH model for seepage flow through deformable porous media2011

    • Author(s)
      Ha H.Bui, R.Fukagawa, K.Sako
    • Journal Title

      Proc.of the 6th International Smoothed Particle Hydrodynamics European Research Interest Community (SPHERIC), UK.

      Volume: (印刷中,掲載決定) Pages: 8-8

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An investigation of riverbank failure due to water level changes using two-phase flow SPH model2011

    • Author(s)
      Ha H.Bui, K.Sako, R.Fukagawa, C.T.Nguyen
    • Journal Title

      13th International Conference of the International Association for Computer Methods and Advances in Geomechanics (IACMAG), Australia.

      Volume: Vol.1 Pages: 116-123

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bearing capacity and failure mechanism of shallow foundation smoothed particle hydrodynamics (SPH) analysis2011

    • Author(s)
      Ha H.Bui, H.V.D.Khoa, R.Fukagawa
    • Journal Title

      The 2nd International Symposium on Computational Geomechanics (Com Geo II), Croatia.

      Pages: 457-468

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Seepage induced soil erosion/failure simulation2011

    • Author(s)
      Ha H.Bui, K.Sake, R.Fukagawa
    • Journal Title

      The 2nd Workshop of Research Training Group "Ports for Container Ships of Future Generation", Germany.

      Pages: 79-95

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] SPH simulation of progressive slope failure due to seepage flow2011

    • Author(s)
      Ha H.Bui, J.C.Wells, C.T.Nguyen, R.Fukagawa
    • Journal Title

      Symposium on Two-phase Modelling for Sediment Dynamics in Geophysical Flows (THESIS-2011), France

      Volume: CD Pages: 4-4

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of numerical simulation method based on SPH to mitigate damages of cultural assets due to riverbank erosion2010

    • Author(s)
      C.Morizane, K.Sako, Ha H.Bui, T.Mizuta, R.Fukagawa, Y.Satofuka
    • Journal Title

      Disaster Mitigation of Cultural Heritage and Historic Cities, Japan

      Volume: Vol.4 Pages: 99-106

    • NAID

      40017387872

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Earthquake induced slope failure simulation by SPH2010

    • Author(s)
      Ha H.Bui, R.Fukagawa, K.Sako, T.Matsumoto
    • Journal Title

      The 5th International Conference on Recent Advances in Geotechnical Earthquake Engineering, USA

      Volume: (CD) Pages: 8-8

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A study of the matter of SPH application to saturated soil problems2010

    • Author(s)
      Ha H.Bui, R.Fukagawa, K.Sako
    • Journal Title

      Proc.of the 5th International Smoothed Particle Hydrodynamics European Research Interest Community (SPHERIC)

      Pages: 354-361

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A study of the effect of apparent cohesion on lunar soil simulant FJS-12010

    • Author(s)
      A.Daizo, Ha H.Bui, R.Fukagawa
    • Journal Title

      The Joint 9th Asia-Pacific ISTVS Conference and Annulal Meeting of Japanese Society for Terrmechanies, Japan

      Volume: (CD) Pages: 16-16

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] A two-phase flow SPH model and its application to simulate seepage induced embankment failure2011

    • Author(s)
      Ha H.Bui, K.Sako, R.Fukagawa, C.T.Nguyen
    • Organizer
      Proceedings of the 1st Vietnam/Japan Joint Seminar on Saigon Riverbank Erosion
    • Place of Presentation
      立命館大学(滋賀)
    • Year and Date
      2011-03-08
    • Related Report
      2010 Annual Research Report
  • [Presentation] Geotechnical investigation at a river side area in Saigon river2011

    • Author(s)
      K.Sako, Ha H.Bui, R.Fukagawa
    • Organizer
      Proceedings of the 1st Vietnam/Japan Joint Seminar on Saigon Riverbank Erosion
    • Place of Presentation
      立命館大学(滋賀)
    • Year and Date
      2011-03-08
    • Related Report
      2010 Annual Research Report
  • [Presentation] A study of riverbank failure due to increase in river water level by experiment and simulation2011

    • Author(s)
      R.Hirano, Ha H.Bui, K.Sako, Fukagawa
    • Organizer
      Proceedings of the 1st Vietnam/Japan Joint Seminar on Saigon Riverbank Erosion
    • Place of Presentation
      立命館大学(滋賀)
    • Year and Date
      2011-03-08
    • Related Report
      2010 Annual Research Report
  • [Presentation] SPH-based soil constitutive model2011

    • Author(s)
      Ha H.Bui, R.Fukagawa
    • Organizer
      Workshop on Particle Methods for Geotechnical Applications
    • Place of Presentation
      Technical Univ.of Hamburg Hamburg (TUHH), Germany(招待講演)
    • Year and Date
      2011-02-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] Mesh free-particle method and its application to river embankment analysis2011

    • Author(s)
      Ha H.Bui, R.Fukagawa
    • Organizer
      第41回不連続性岩盤解析実用化研究会
    • Place of Presentation
      サンコーコンサルタント(株)(東京)(招待講演)
    • Year and Date
      2011-02-16
    • Related Report
      2010 Annual Research Report
  • [Presentation] State of the Art of SPH Application to Computational Geomechanics2011

    • Author(s)
      Ha H.Bui, R.Fukagawa
    • Organizer
      LMMC Workshop on Fundamental and Application of PH in Science and Engineering
    • Place of Presentation
      Leuven Mathematical Modeling & Computational Science Centre (LMMC), Latholieke University Leuven, Belgium(招待講演)
    • Year and Date
      2011-02-16
    • Related Report
      2010 Annual Research Report
  • [Presentation] A SPH model for seepage flow through deformable porous media2011

    • Author(s)
      Bui H.H, Nguyen C.T, Sako K, Fukagawa R
    • Organizer
      The 6th International Smoothed Particle Hydrody namics European Research Interest Community (SPHERIC) Conference, pp.164-171
    • Place of Presentation
      Hamburg Univ (Germany)
    • Related Report
      2011 Annual Research Report
  • [Presentation] An investigation of riverbank failure due to water level changes using two-phase flow SPH model2011

    • Author(s)
      Bui H.H, Sako K, Fukagawa R, Nguyen C.T
    • Organizer
      The 13th International Association for Computer Methods and Advances in Geomechanics (IACMAG), pp.116-123
    • Place of Presentation
      Melbourne (Australia)
    • Related Report
      2011 Annual Research Report
  • [Presentation] アースドリルの掘削刃の数と回転速度による力学特性への影響に関する一考察2010

    • Author(s)
      台蔵憲, 志野直紀, Ha H.Bui, 深川良一
    • Organizer
      平成22年度全国大会 第65回年次学術講演会
    • Place of Presentation
      北海道大学(北海道)
    • Year and Date
      2010-09-02
    • Related Report
      2010 Annual Research Report
  • [Presentation] 修正インターロッキングフォースモデルの提案とそのパラメータに関する考察2010

    • Author(s)
      台蔵憲, 志野直紀, Ha H.Bui, 深川良一
    • Organizer
      第45回 地盤工学研究会発表会
    • Place of Presentation
      愛媛大学(愛媛)
    • Year and Date
      2010-08-19
    • Related Report
      2010 Annual Research Report
  • [Presentation] SPH法を用いた河川堤防模擬斜面の安定 性評価2010

    • Author(s)
      C.Morizane, Ha H.Bui, K.Sako, Fukagawa
    • Organizer
      土木学会関西支部研究発表会
    • Place of Presentation
      京都大学(京都)
    • Year and Date
      2010-06-02
    • Related Report
      2010 Annual Research Report

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Published: 2010-12-03   Modified: 2024-03-26  

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