• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Identification of preferential water flow under the ground through dynamic response of seepage water

Research Project

Project/Area Number 16K15006
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Rural environmental engineering/Planning
Research InstitutionKyoto University

Principal Investigator

Fujisawa Kazunori  京都大学, 農学研究科, 准教授 (30510218)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsパイピング / ベイズ推定 / Dacy/Navier-Stokesカップリング / ハミルトニアンモンテカルロ法 / 浸透流 / 逆解析 / ため池 / Darcy-Brinkman方程式 / ダルシー・ブリンクマン式 / LES / 減災
Outline of Final Research Achievements

This research project has developed a method for detecting localized cavities or voids under the ground, such as crack and soil pipe, through the dynamic response of seepage flow. The following two main results were obtained in the project: We developed a numerical method which achieve the coupled analysis of saturated/unsaturated seepage flows in porous media and Navier-Stokes flows in fluid domain, and proposed a new method identifying the clear interface of spatial domains, such as subsurface cavities via Bayesian inference.

Academic Significance and Societal Importance of the Research Achievements

上記の二つ研究成果はその汎用性の広さに特徴がある.水みちを有する浸透水の流れの計算では,水だけで占められた流体領域と土中の不飽和・飽和浸透流を同時計算できる.これは,地上に存在するほとんどの形態の水の流れを連続的に予測できる方法となる.また,局所的な空洞形状の逆解析法は,ベイズ推定に形状微分を取り入れた新規なものであるだけでなく,これまで困難であった明確なインターフェースを推定することが可能である.そのため,明瞭な境界形状を必要とする多くの形状推定問題に適用できる.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (59 results)

All 2019 2018 2017 2016 Other

All Journal Article (23 results) (of which Peer Reviewed: 12 results,  Open Access: 3 results) Presentation (35 results) (of which Int'l Joint Research: 7 results) Remarks (1 results)

  • [Journal Article] Darcy-Brinkman式の不飽和領域への拡張2019

    • Author(s)
      藤澤和謙,村上 章
    • Journal Title

      農業農村工学会論文集

      Volume: 308

    • NAID

      130007586950

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Velocity based time-discontinuous Galerkin space-time finite element method for elastodynamics2018

    • Author(s)
      V. Sharma, K. Fujisawa and A. Murakami
    • Journal Title

      Soils and Foundations

      Volume: 58(2) Pages: 491-510

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Numerical analysis of coupled flows in porous and fluid domains by the Darcy-Brinkman equations2018

    • Author(s)
      K. Fujisawa and A. Murakami
    • Journal Title

      Soils and Foundations

      Volume: 58(5) Pages: 1240-1259

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Experimental investigation of the critical tractive force of glass beads under upward seepage flow2018

    • Author(s)
      K. Fujisawa, K. Sugino and A. Murakami
    • Journal Title

      Scour and Erosion IX

      Volume: - Pages: 493-497

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Model identification and parameter estimation of elastoplastic constitutive model by data assimilation using the particle filter2017

    • Author(s)
      A. Murakami, H. Shinmura, S. Ohno, K. Fujisawa
    • Journal Title

      International Journal for Numerical and Analytical Methods in Geomechanics

      Volume: - Issue: 1 Pages: 110-131

    • DOI

      10.1002/nag.2717

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] 鉛直上向き浸透流を受ける非粘着性材料の限界掃流力測定2017

    • Author(s)
      藤澤和謙,杉野公亮,村上 章
    • Journal Title

      土木学会論文集B2(海岸工学)

      Volume: Vol.73, No.2

    • NAID

      130006171867

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Mitigation of earthquake induced damage of breakwater by geogrid reinforced foundation2017

    • Author(s)
      B. Chaudhary, H. Hazarika, A. Murakami and K. Fujisawa
    • Journal Title

      Marine Georesources & Geotechnology

      Volume: - Issue: 7 Pages: 827-840

    • DOI

      10.1080/1064119x.2017.1391902

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Countermeasures for enhancing the stability of composite breakwater under earthquake and subsequent tsunami2017

    • Author(s)
      B. Chaudhary, H. Hazarika, A. Murakami and K. Fujisawa
    • Journal Title

      Acta Geotechnica

      Volume: - Issue: 4 Pages: 997-1017

    • DOI

      10.1007/s11440-017-0615-4

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Coupled analysis of Navier-Stokes and Darcy flows by the Brinkman equations2017

    • Author(s)
      S. Arimoto, K. Fujisawa and A. Murakami
    • Journal Title

      Geotechnical Engineering Journal of the SEAGS & AGSSEA

      Volume: Vol.48, No.4 Pages: 40-49

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] 3次元粒子-流体連成計算モデルによる土中の水みち拡大過程のシミュレーション2017

    • Author(s)
      岡田紘明,福元 豊,藤澤和謙,村上 章
    • Journal Title

      土木学会論文集 A2(応用力学)

      Volume: Vol.73, No.2

    • NAID

      130006329910

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Numerical analysis of fluidization of sandy materials by CWENO method2017

    • Author(s)
      K. Fujisawa and A. Murakami
    • Journal Title

      The 19th International Conference on Soil Mechanics and Geotechnical Engineering

      Volume: - Pages: 1283-1286

    • Related Report
      2017 Research-status Report
  • [Journal Article] A new velocity based time discontinuous Space-Time finite element method for vibration analysis of elastic and hypoelastic material2017

    • Author(s)
      V. Sharma, K. Fujisawa and A. Murakami
    • Journal Title

      The 15th International Conference of the International Association for Computer Methods and Advances in Geomechanics

      Volume: -

    • Related Report
      2017 Research-status Report
  • [Journal Article] Reinforcing foundation model to mitigate earthquake induced failure of breakwater: Model tests and numerical simulations2017

    • Author(s)
      B. Chaudhary, H. Hazarika, A. Murakami and K. Fujisawa
    • Journal Title

      The 15th International Conference of the International Association for Computer Methods and Advances in Geomechanics

      Volume: -

    • Related Report
      2017 Research-status Report
  • [Journal Article] Shear tests and modeling of root-soil contact interface using novel pullout test2017

    • Author(s)
      H. Tomobe, K. Fujisawa and A. Murakami
    • Journal Title

      The 15th International Conference of the International Association for Computer Methods and Advances in Geomechanics

      Volume: -

    • NAID

      130005165238

    • Related Report
      2017 Research-status Report
  • [Journal Article] Numerical simulation of soil erosion by particle-fluid coupled scheme2017

    • Author(s)
      H. Okada, Y. Fukumoto, K. Fujisawa and A. Murakami
    • Journal Title

      The 15th International Conference of the International Association for Computer Methods and Advances in Geomechanics

      Volume: -

    • Related Report
      2017 Research-status Report
  • [Journal Article] Elastic Modulus Estimation using a Scaled State Parameter in the Extended Kalman Filter2017

    • Author(s)
      M.C. Koch, A. Murakami and K. Fujisawa
    • Journal Title

      The 3rd Indo-Japan Workshop on Geotechnics for Natural Disaster Mitigation and Management

      Volume: -

    • Related Report
      2017 Research-status Report
  • [Journal Article] Instability of composite breakwater subjected to earthquake and tsunami and its countermeasures2017

    • Author(s)
      B. Chaudhary, H. Hazarika, A. Murakami and K. Fujisawa
    • Journal Title

      The 3rd Indo-Japan Workshop on Geotechnics for Natural Disaster Mitigation and Management

      Volume: -

    • Related Report
      2017 Research-status Report
  • [Journal Article] Numerical simulation of embankment failure due to overflow by Moving Particle Semi-implicit method2016

    • Author(s)
      T. Shuku, K. Fujisawa, S. Nishimura and T. Shibata
    • Journal Title

      Irrigation,Drainage and Rural Engineering Journal

      Volume: 84

    • NAID

      130005126971

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] 抜根試験機による根-土接触面のせん断試験およびモデル化2016

    • Author(s)
      友部 遼,藤澤和謙,村上 章
    • Journal Title

      農業農村工学会論文集

      Volume: 84

    • NAID

      130005165238

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Numerical analysis of backward erosion of soils by solving the Darcy-Brinkman equations2016

    • Author(s)
      K. Fujisawa
    • Journal Title

      Advances in Computational Fluid-Structure Interaction and Flow Simulation: New Methods and Challenging Computations

      Volume: - Pages: 193-201

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Numerical analysis of backward erosion by soil-water interface tracking2016

    • Author(s)
      K. Fujisawa, A. Murakami and K. Sakai
    • Journal Title

      Japanese Geotechnical Society Special Publication

      Volume: 4 Issue: 4 Pages: 84-87

    • DOI

      10.3208/jgssp.v04.j31

    • NAID

      130007041165

    • ISSN
      2188-8027
    • Related Report
      2016 Research-status Report
    • Open Access
  • [Journal Article] Estimation of hydraulic conductivity in an embankment using particle filter2016

    • Author(s)
      K. Fujisawa, A. Murakami and S. Nishimura
    • Journal Title

      Proceedings of 6th Asian-Pacific Symposium on Structural Reliability and its Applications

      Volume: - Pages: 618-623

    • Related Report
      2016 Research-status Report
  • [Journal Article] Comparison of filtering algorithms for estimating posterior probability distributions: A case study2016

    • Author(s)
      T. Shuku, I. Yoshida, S. Yamamoto, K. Tanaka, K. Fujisawa and Y. Nomura
    • Journal Title

      Proceedings of 6th Asian-Pacific Symposium on Structural Reliability and its Applications

      Volume: - Pages: 636-641

    • Related Report
      2016 Research-status Report
  • [Presentation] ハミルトニアンモンテカルロ法による水みちの経路推定2019

    • Author(s)
      藤澤和謙,村上 章
    • Organizer
      第24回計算工学講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Darcy-Brinkman式の不飽和領域への拡張とその数値解法2018

    • Author(s)
      藤澤和謙,村上 章
    • Organizer
      第23回計算工学講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Effect of upward seepage flow on critical tractive force of a cohesionless soil material2018

    • Author(s)
      Md. Arif Hossain Jewel, Kazunori Fujisawa, Akira Murakami
    • Organizer
      第53回地盤工学研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 弾性波探査解析に粒子フィルタを適用した土構造物内の劣化箇所の位置および形状の推定2018

    • Author(s)
      高松亮佑,村上 章,中畑和之,藤澤和謙,種子永栄輝
    • Organizer
      第53回地盤工学研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 3次元粒子―流体連成計算による粘性土の侵食モデル2018

    • Author(s)
      岡田紘明,福元 豊,森田健太郎,藤澤和謙,村上 章
    • Organizer
      第53回地盤工学研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 鉛直上向き浸透流の作用する非粘着性材料の限界掃流力についての2次元LBM-DEMシミュレーション2018

    • Author(s)
      森田健太郎,福元 豊,藤澤和謙,村上 章
    • Organizer
      平成30年度農業農村工学会大会講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 砂粒子と間隙水を直接解いた2次元液状化シミュレーション2018

    • Author(s)
      北尾朋広,福元 豊,藤澤和謙,村上 章
    • Organizer
      平成30年度農業農村工学会大会講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Experimental investigation of the critical tractive force of glass beads under upward seepage flow2018

    • Author(s)
      K. Fujisawa, K. Sugino and A. Murakami
    • Organizer
      The 9th International Conference on Sour and Erosion
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] コヒーレント構造モデルを導入したNavier-Stokes/Darcy流の同時解析2017

    • Author(s)
      藤澤和謙,村上 章,福元 豊
    • Organizer
      第22回計算工学講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 3次元粒子―流体連成モデルによる内部侵食の解析2017

    • Author(s)
      岡田紘明,福元 豊,藤澤和謙,村上 章
    • Organizer
      第52回地盤工学研究発表会
    • Related Report
      2017 Research-status Report
  • [Presentation] 上向き浸透流作用下での限界掃流力測定2017

    • Author(s)
      藤澤和謙,村上 章,杉野 公亮
    • Organizer
      第52回地盤工学研究発表会
    • Related Report
      2017 Research-status Report
  • [Presentation] 根―土接触面の強度特性の把握および数値解析2017

    • Author(s)
      友部 遼,藤澤和謙,村上 章
    • Organizer
      第52回地盤工学研究発表会
    • Related Report
      2017 Research-status Report
  • [Presentation] Darcy-Brinkman 式による浸透流解析とLES のカップリング計算2017

    • Author(s)
      藤澤和謙,村上 章,福元 豊
    • Organizer
      平成29年度農業農村工学会大会講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 粒子-流体連成計算モデルを用いた浸透破壊後の解析2017

    • Author(s)
      森田健太郎,岡田紘明,福元 豊,藤澤和謙,村上 章
    • Organizer
      平成29年度農業農村工学会大会講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 粒子フィルタと弾性波探査シミュレーションによる地盤パラメータの推定2017

    • Author(s)
      古川智大,高松亮佑,村上 章,中畑和之,藤澤和謙
    • Organizer
      平成29年度農業農村工学会大会講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 根-土接触計算コードの開発とベンチマーク計算による検証2017

    • Author(s)
      友部 遼,藤澤和謙,村上 章
    • Organizer
      平成29年度農業農村工学会大会講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 粒子―流体連成計算モデルによる浸透破壊後のシミュレーション2017

    • Author(s)
      森田健太郎,岡田紘明,福元 豊,藤澤和謙,村上 章
    • Organizer
      第74回農業農村工学会京都支部研究発表会
    • Related Report
      2017 Research-status Report
  • [Presentation] 有限変形弾塑性有限要素法による根-土接触シミュレーション2017

    • Author(s)
      友部 遼,藤澤和謙,村上 章
    • Organizer
      第74回農業農村工学会京都支部研究発表会
    • Related Report
      2017 Research-status Report
  • [Presentation] 粒子フィルタと弾性波探査シミュレーションによる地中の欠陥部パラメータの推定2017

    • Author(s)
      古川智大,高松亮佑,村上 章,中畑和之,藤澤和謙
    • Organizer
      第74回農業農村工学会京都支部研究発表会
    • Related Report
      2017 Research-status Report
  • [Presentation] Numerical analysis of fluidization of sandy materials by CWENO method2017

    • Author(s)
      K. Fujisawa and A. Murakami
    • Organizer
      The 19th International Conference on Soil Mechanics and Geotechnical Engineering
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] A new velocity based time discontinuous Space-Time finite element method for vibration analysis of elastic and hypoelastic material2017

    • Author(s)
      V. Sharma, K. Fujisawa and A. Murakami
    • Organizer
      The 15th International Conference of the International Association for Computer Methods and Advances in Geomechanics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Elastic Modulus Estimation using a Scaled State Parameter in the Extended Kalman Filter2017

    • Author(s)
      M.C. Koch, A. Murakami and K. Fujisawa
    • Organizer
      The 3rd Indo-Japan Workshop on Geotechnics for Natural Disaster Mitigation and Management
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 粒子-流体連成計算による粘性土の内部侵食モデル2016

    • Author(s)
      藤名瑞耀,福元 豊,岡田紘明,村上 章,藤澤和謙
    • Organizer
      第51回地盤工学研究発表会
    • Place of Presentation
      岡山市
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report
  • [Presentation] CPT によるため池堤体の液状化確率評価2016

    • Author(s)
      今出和成,西村伸一,柴田俊文,珠玖隆行,村上 章,藤澤和謙
    • Organizer
      第51回地盤工学研究発表会
    • Place of Presentation
      岡山市
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report
  • [Presentation] 上向き浸透流によって運ばれる砂粒子の移動速度測定2016

    • Author(s)
      藤澤和謙,村上 章,藤巻真由
    • Organizer
      第51回地盤工学研究発表会
    • Place of Presentation
      岡山市
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report
  • [Presentation] 外部応力による地中空洞崩落・道路陥没発生メカニズムの解明2016

    • Author(s)
      佐藤真理,藤澤和謙
    • Organizer
      第51回地盤工学研究発表会
    • Place of Presentation
      岡山市
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report
  • [Presentation] 浸透流と表面流が作用する時の限界掃流力測定2016

    • Author(s)
      藤澤和謙,村上 章,福島直子
    • Organizer
      平成28年度農業農村工学会大会講演会
    • Place of Presentation
      仙台市
    • Year and Date
      2016-08-30
    • Related Report
      2016 Research-status Report
  • [Presentation] CPTによるため池堤体内部N値の空間分布推定2016

    • Author(s)
      今出和成,西村伸一,珠玖隆行,柴田俊文,村上 章,藤澤和謙
    • Organizer
      平成28年度農業農村工学会大会講演会
    • Place of Presentation
      仙台市
    • Year and Date
      2016-08-30
    • Related Report
      2016 Research-status Report
  • [Presentation] 根-土境界面におけるせん断挙動に関する実験的研究2016

    • Author(s)
      友部 遼,藤澤和謙,村上 章
    • Organizer
      平成28年度農業農村工学会大会講演会
    • Place of Presentation
      仙台市
    • Year and Date
      2016-08-30
    • Related Report
      2016 Research-status Report
  • [Presentation] Darcy-Brinkman式を用いた乱流数値解析手法2016

    • Author(s)
      佐藤真理,藤澤和謙,村上 章
    • Organizer
      第21回計算工学講演会
    • Place of Presentation
      新潟市
    • Year and Date
      2016-05-31
    • Related Report
      2016 Research-status Report
  • [Presentation] Estimation of hydraulic conductivity in an embankment using particle filter2016

    • Author(s)
      K. Fujisawa, A. Murakami and S. Nishimura
    • Organizer
      6th Asian-Pacific Symposium on Structural Reliability and its Applications
    • Place of Presentation
      上海(中国)
    • Year and Date
      2016-05-28
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Comparison of filtering algorithms for estimating posterior probability distributions: A case study2016

    • Author(s)
      T. Shuku, I. Yoshida, S. Yamamoto, K. Tanaka, K. Fujisawa and Y. Nomura
    • Organizer
      6th Asian-Pacific Symposium on Structural Reliability and its Applications
    • Place of Presentation
      上海(中国)
    • Year and Date
      2016-05-28
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] DEM-LBM 連成計算を用いた浸透破壊後の解析2016

    • Author(s)
      岡田紘明,福元 豊,藤澤和謙,村上 章
    • Organizer
      第73回農業農村工学会京都支部研究発表会
    • Place of Presentation
      大阪市
    • Related Report
      2016 Research-status Report
  • [Presentation] 計算接触力学に基づく抜根試験の再現シミュレーション2016

    • Author(s)
      友部 遼,藤澤和謙,村上 章
    • Organizer
      第73回農業農村工学会京都支部研究発表会
    • Place of Presentation
      大阪市
    • Related Report
      2016 Research-status Report
  • [Presentation] Numerical analysis of backward erosion by soil-water interface tracking2016

    • Author(s)
      K. Fujisawa, A. Murakami and K. Sakai
    • Organizer
      The 6th Japan-Korea Geotechnical Workshop
    • Place of Presentation
      岡山市
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Remarks] 京都大学農学部施設機能工学分野

    • URL

      http://www.agrifacility.kais.kyoto-u.ac.jp/index.html

    • Related Report
      2018 Annual Research Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi