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Prediction of internal erosion at soil-water interface by bridging soil mechanics and hydraulics

Research Project

Project/Area Number 17H03889
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
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)

Co-Investigator(Kenkyū-buntansha) 友部 遼  豊田工業高等専門学校, 環境都市工学科, 助教 (90880005)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Keywords侵食 / 土質力学 / 水理学 / 掃流力 / レオロジー / 流体解析 / 内部侵食 / パイピング / 限界掃流力 / 砂 / 粘塑性 / 土質材料 / 農業工学 / 材料力学
Outline of Final Research Achievements

Soil erosion is a natural phenomenon usually induced by water flows, including overland flow and seepage flow in soils, and is still difficult to be predicted accurately. In order to deal with the natural phenomenon, proper approaches from soil mechanics and hydraulics are required. This research project has attempted an experimental investigation of incipient motion of cohesionless soils under seepage effects and rheology of the soils under very low confining stress assuming the soil surface. In addition to the experimental investigation, a numerical method which can simultaneously simulate (regular) water flow in a fluid domain and seepage flow in a porous medium has been developed. The above achievement has established the basics for the prediction of the soil erosion considering the interaction of water flows inside and outside of soils.

Academic Significance and Societal Importance of the Research Achievements

堤防やため池のように,水の作用にさらされる土で出来た構造物にとって,侵食はその機能を失う大きな脅威となる.本研究成果は,現在でも予測が困難である(水流による)土の侵食について,その力学の発展と予測精度の向上を目指したものである.得られた研究成果は,上記構造物などの防災・減災につながる基礎的知見を提供するとともに,実際の災害対策の提案やその対策効果をシミュレートする方法として社会への還元が期待できる.

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (101 results)

All 2021 2020 2019 2018 2017 Other

All Journal Article (49 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 32 results,  Open Access: 11 results) Presentation (51 results) (of which Int'l Joint Research: 11 results,  Invited: 2 results) Remarks (1 results)

  • [Journal Article] Evaluation of incipient motion of sand particles by different indirect methods in erosion function apparatus2021

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

      Water

      Volume: 13(8) Issue: 8 Pages: 1118-1118

    • DOI

      10.3390/w13081118

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 速度型Space-Time有限要素法によるフィルダムの弾塑性地震応答解析2021

    • Author(s)
      坂井孝太郎,藤澤和謙,村上 章
    • Journal Title

      農業農村工学会論文集

      Volume: 89(1)

    • NAID

      130008029561

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ため池における法面保護工の堤体安定性向上効果2021

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

      農業農村工学会論文集

      Volume: 89(1)

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Mohr-Coulomb-Vilar model for constitutive relationship in root-soil interface under changing suction2021

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

      Soils and Foundations

      Volume: -

    • NAID

      120007124427

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [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: -

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Numerical investigation of seepage force acting on interfacial bed particles by DEM-LBM2021

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

      Challenges and Innovations in Geomechanics, IACMAG 2021, Lecture Notes in Civil Engineering

      Volume: 126 Pages: 317-325

    • DOI

      10.1007/978-3-030-64518-2_38

    • ISBN
      9783030645175, 9783030645182
    • Related Report
      2020 Annual Research Report
  • [Journal Article] Application of an HMC based approximate method for combined identification of hydraulic conductivity and piping region interface2021

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

      Challenges and Innovations in Geomechanics. IACMAG 2021, Lecture Notes in Civil Engineering

      Volume: 125 Pages: 886-894

    • DOI

      10.1007/978-3-030-64514-4_96

    • ISBN
      9783030645137, 9783030645144
    • Related Report
      2020 Annual Research Report
  • [Journal Article] Bayesian inference of preferential seepage path by gradient-based Markov Chain Monte Carlo2020

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

      Japanese Geotechnical Society Special Publication

      Volume: 8 Issue: 3 Pages: 59-63

    • DOI

      10.3208/jgssp.v08.j44

    • NAID

      130007809077

    • ISSN
      2188-8027
    • Year and Date
      2020-03-14
    • Related Report
      2020 Annual Research Report
    • Open Access
  • [Journal Article] Space-time FEM with block-iterative algorithm for nonlinear dynamic fracture analysis of concrete gravity dam2020

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

      Soil Dynamics and Earthquake Engineering

      Volume: 131 Pages: 105995-105995

    • DOI

      10.1016/j.soildyn.2019.105995

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] P-y Curves of 2x2 pile group in liquefiable soil under dynamic loadings2020

    • Author(s)
      K. Chatterjee, D. Choudhury, A. Murakami and K. Fujisawa
    • Journal Title

      Arabian Journal of Geosciences

      Volume: 13 Issue: 13 Pages: 585-585

    • DOI

      10.1007/s12517-020-05608-z

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Shape detection of multiple subsurface cavities by particle filtering with elastic wave propagation2020

    • Author(s)
      R. Takamatsu, K. Fujisawa, K. Nakahata and A. Murakami
    • Journal Title

      International Journal for Numerical and Analytical Methods in Geomechanics

      Volume: 44 Issue: 15 Pages: 2025-2041

    • DOI

      10.1002/nag.3117

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Novel parameter update for a gradient based MCMC method for solid-void interface detection through elastodynamic inversion2020

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

      Probabilistic Engineering Mechanics

      Volume: 62 Pages: 103097-103097

    • DOI

      10.1016/j.probengmech.2020.103097

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bayesian inference of preferential seepage path by gradient-based Markov Chain Monte Carlo2020

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

      8th Japan-China Geotechnical Symposium, Japanese Geotechnical Society Special Publication

      Volume: - Pages: 59-63

    • NAID

      130007809077

    • Related Report
      2019 Annual Research Report
    • Open Access
  • [Journal Article] Space-time finite element procedure with block-iterative algorithm for dam-reservoir-soil interaction during earthquake loading2019

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

      International Journal for Numerical Methods in Engineering

      Volume: 120 Issue: 3 Pages: 263-282

    • DOI

      10.1002/nme.6134

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of seepage flow on incipient motion of sand particles in a bed subjected to surface flow2019

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

      Journal of Hydrology

      Volume: 579 Pages: 124178-124178

    • DOI

      10.1016/j.jhydrol.2019.124178

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 河川堤防への降雨浸透と浸潤状態予測に関する一斉解析からの知見2019

    • Author(s)
      新清 晃・西村 聡・藤澤和謙・竹下祐二・河井克之・佐古俊介・森 啓年・山添誠隆・太田雅之
    • Journal Title

      土木学会論文集C(地圏工学)

      Volume: 75(4) Pages: 398-414

    • NAID

      130007731663

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Adjoint Hamiltonian Monte Carlo algorithm for the estimation of elastic modulus through the inversion of elastic wave propagation data2019

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

      International Journal for Numerical Methods in Engineering

      Volume: 121 Issue: 6 Pages: 1037-1067

    • DOI

      10.1002/nme.6256

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experiments and FE-analysis of 2-D root-soil contact problems based on Node-To-Segment approach2019

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

      Soils and Foundations

      Volume: 59(6) Issue: 6 Pages: 1860-1874

    • DOI

      10.1016/j.sandf.2019.08.003

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of liquefaction probability of earth-fill dam over next 50 years using geostatistical method based on CPT2019

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

      Soils and Foundations

      Volume: 59(6) Issue: 6 Pages: 1758-1771

    • DOI

      10.1016/j.sandf.2019.08.002

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ハミルトニアンモンテカルロ法による地盤内集中流の同定2019

    • Author(s)
      藤澤和謙・村上章・古川智大
    • Journal Title

      第13回環境地盤工学シンポジウム論文集

      Volume: - Pages: 131-137

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Space-time finite element method for seismic analysis of concrete dam2019

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

      IntechOpen

      Volume: -

    • DOI

      10.5772/intechopen.91916

    • ISBN
      9781839621574, 9781839621581
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Performance of velocity-based time-discontinuous Galerkin space-time finite element method in nonlinear elastodynamic analysis2019

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

      Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions : Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering

      Volume: - Pages: 2468-2475

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Unsaturated behavior of an earthfill dam during coupled initial impoundment and a prolonged rainfall2019

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

      7th Asia-Pacific Conference on Unsaturated Soils (AP-UNSAT2019), Japanese Geotechnical Society Special Publication

      Volume: - Pages: 549-555

    • Related Report
      2019 Annual Research Report
    • Open Access
  • [Journal Article] Effect of seepage flow on critical tractive force of cohesionless soil bed subjected to surface flow2019

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

      The 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering

      Volume: -

    • Related Report
      2019 Annual Research Report
  • [Journal Article] HMC based inverse analysis to determine position and size of square cavities2019

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

      The 7th International Symposium on Geotechnical Safety and Risk (ISGSR)

      Volume: - Pages: 637-642

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Development of resilient breakwater against earthquake and tsunami2019

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

      International Journal of Geomechanics, ASCE

      Volume: 19(1)

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [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 / Open Access
  • [Journal Article] Prediction of long-term settlement and evaluation of pore water pressure using particle filter2019

    • Author(s)
      T. Shibata, T. Shuku, A. Murakami, K. Fujisawa, N. Hasegawa and S. Nonami
    • Journal Title

      Soils and Foundations

      Volume: 59(1) Pages: 67-83

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Slope stability evaluation of an agricultural embankment by statistically derived rainfall patterns2019

    • Author(s)
      J. Park, K. Vilayvong, Y. Son, K. Fujisawa and A. Murakami
    • Journal Title

      Paddy and Water Environment

      Volume: 印刷中 Issue: 3 Pages: 303-313

    • DOI

      10.1007/s10333-019-00725-2

    • 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. Murakam
    • Journal Title

      Soils and Foundations

      Volume: 58(2) Pages: 491-510

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Geosynthetic-sheet pile reinforced foundation for mitigation of earthquake and tsunami induced damage of breakwater2018

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

      Geotextiles and Geomembranes

      Volume: 46 Pages: 597-610

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [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] 粒子フィルタによる欠陥の位置と大きさの推定のための弾性散乱振幅の導入2018

    • Author(s)
      中畑和之,辻田篤史,藤澤和謙,村上 章
    • Journal Title

      土木学会論文集A2(応用力学)

      Volume: 74(2)

    • NAID

      130007584694

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [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

      The 9th International Conference on Sour and Erosion

      Volume: - Pages: 493-497

    • Related Report
      2018 Annual Research Report
  • [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: Vol.58

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measurement of critical tractive force of glass beads subjected to upward seepage flow2018

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

      New Advances in Geotechnical Engineering, Proceedings of the 7th China-Japan Geotechnical Symposium

      Volume: - Pages: 52-56

    • Related Report
      2017 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research Report
    • Open Access
  • [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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research Report
  • [Presentation] How to deal with soil erosion under seepage effect2020

    • Author(s)
      K. Fujisawa
    • Organizer
      1st Indo-Japan Webinar Series on Geotechnics for Disaster Mitigation
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Hamiltonian Monte Carlo identification of an arbitrary crack extending from the surface into an embankment through elastodynamic inversion2020

    • Author(s)
      M. Koch, K. Fujisawa, A. Murakami
    • Organizer
      The 3rd International Conference on Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 人工樹脂多孔質体を用いたLBM-DEM 浸透流計算のバリデーション2020

    • Author(s)
      藤澤和謙,北尾朋広 ,福元 豊,村上 章
    • Organizer
      第55回地盤工学研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Mohr-Coulomb-Vilarモデルによるサクション制御下抜根シミュレーション2020

    • Author(s)
      友部 遼,藤澤和謙,村上 章
    • Organizer
      第55回地盤工学研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Simultaneous identification of geometry and hydraulic conductivity of seepage flow field with a piping zone2020

    • Author(s)
      Michael Koch,藤澤 和謙,村上 章
    • Organizer
      第55回地盤工学研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Erosion, dynamic response and parameter identification for soil structures2020

    • Author(s)
      K. Fujisawa
    • Organizer
      The 6th Symposium on Theoretical and Applied Mechanics
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 速度型Space-Time有限要素法を用いたロックフィルダムの地震応答解析2020

    • Author(s)
      笹川秀徒,坂井孝太郎,藤澤和謙,村上 章
    • Organizer
      2020年度 (第69回) 農業農村工学会大会講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 不飽和領域におけるDarcy-Brinkman式の理論解2020

    • Author(s)
      嶋田侑治,藤澤和謙,村上 章
    • Organizer
      2020年度 (第69回) 農業農村工学会大会講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ハミルトニアンモンテカルロ法を用いた逆解析による定常流の透水係数の推定2020

    • Author(s)
      大杉美里,Koch C. Michael,村上 章,藤澤和謙
    • Organizer
      2020年度 (第69回) 農業農村工学会大会講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 3Dプリンターを利用した粒子―流体計算のバリデーション2020

    • Author(s)
      藤澤和謙,北尾朋広,福元 豊,村上 章
    • Organizer
      2020年度 (第69回) 農業農村工学会大会講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] マルコフ連鎖モンテカルロ法による未知形状のベイズ推定2020

    • Author(s)
      藤澤和謙
    • Organizer
      第10回計算力学シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] Coupled Analysis of Navier-Stokes and Darcy flows with Coherent Smagorinsky Model2019

    • Author(s)
      K. Fujisawa, A. Murakami
    • Organizer
      VIII International Conference on Coupled Problems in Science and Engineering
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Performance of velocity-based time-discontinuous Galerkin space-time finite element method in nonlinear elastodynamic analysis2019

    • Author(s)
      N. Fujii, V. Sharma, K. Fujisawa, A. Murakami
    • Organizer
      7th International Conference on Earthquake Geotechnical Engineering
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of seepage flow on critical tractive force of cohesionless soil bed subjected to surface flow2019

    • Author(s)
      A. Jewel, K. Fujisawa, A. Murakami
    • Organizer
      The 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] HMC based inverse analysis to determine position and size of square cavities2019

    • Author(s)
      M. C. Koch, K. Fujisawa, A. Murakami
    • Organizer
      The 7th International Symposium on Geotechnical Safety and Risk
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [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
      2019 Annual Research Report
  • [Presentation] Elastic Wave Inversion Using HMC to Identify Subsurface Cavities2019

    • Author(s)
      Michael C. Koch・藤澤和謙・村上 章
    • Organizer
      第54回地盤工学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 乱流モデルを組み込んだ流体計算手法を用いた浸透流の直接的シミュレーション2019

    • Author(s)
      北尾朋広・福元 豊・藤澤和謙・村上 章
    • Organizer
      第54回地盤工学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 砂地盤表層の摩擦角及び流動性の測定2019

    • Author(s)
      藤澤和謙・伊藤源規・村上 章
    • Organizer
      第54回地盤工学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Mohr-Coulomb-Vilarモデルによる不飽和抜根試験の二次元再現計算2019

    • Author(s)
      友部 遼・藤澤和謙・村上 章
    • Organizer
      2019年度(第68回)農業農村工学会大会講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 粒子フィルタを用いた宮古島仲原地域における透水係数の推定2019

    • Author(s)
      種子永栄輝,村上 玄,村上 章,藤澤和謙
    • Organizer
      2019年度(第68回)農業農村工学会大会講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 有限要素法によるNavier-Stokes流と飽和/不飽和浸透流の同時解析2019

    • Author(s)
      嶋田侑治,藤澤和謙,村上 章
    • Organizer
      2019年度(第68回)農業農村工学会大会講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Space-Time 有限要素法による農業用ダムの高精度地震応答解析2019

    • Author(s)
      藤井夏海,Vikas Sharma,藤澤和謙,村上 章
    • Organizer
      第76回農業農村工学会京都支部研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 2D numerical simulation of turbulent flow inside the soil by LBM2019

    • Author(s)
      Tomohiro Kitao, Yutaka Fukumoto, Kazunori Fujisawa, Akira Murakami
    • Organizer
      MPM 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2次元根-土接触シミュレータへの安定化NTS法の導入2018

    • Author(s)
      友部 遼,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] 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] 安定化NTS要素を用いた根ー土接触解析2018

    • Author(s)
      友部 遼,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] 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] 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] 粒子フィルタを用いたタンクモデルのパラメータ推定2018

    • Author(s)
      古川智大,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] 粒子フィルタと弾性波探査シミュレーションによる欠陥の位置推定2018

    • Author(s)
      種子永栄輝,村上 章,中畑和之,藤澤和謙
    • 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] 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] 粒子フィルタと弾性波探査シミュレーションを用いた地盤内欠陥同定2018

    • Author(s)
      種子永栄輝,村上 章,中畑和之,藤澤和謙
    • 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] 粒子・流体連成シミュレーションによる地震動載荷中の粒子挙動2018

    • Author(s)
      北尾朋広,福元 豊,藤澤和謙,村上 章
    • Organizer
      第75回農業農村工学会京都支部研究発表会
    • 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Measurement of critical tractive force of glass beads subjected to upward seepage flow2017

    • Author(s)
      K. Fujisawa, K. Suino and A. Murakami
    • Organizer
      The 7th China-Japan Geotechnical Symposium
    • Related Report
      2017 Annual Research 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/

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report

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Published: 2017-04-28   Modified: 2022-01-27  

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