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Evaluation of the stability of coastal structures and their foundations due to tsunamis containing suspended sediment and the effectiveness of countermeasures

Research Project

Project/Area Number 26820200
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Hydraulic engineering
Research InstitutionNagoya University

Principal Investigator

Nakamura Tomoaki  名古屋大学, 工学研究科, 准教授 (90569328)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords津波 / 海岸保全施設 / 耐津波安定性 / 浮遊砂 / 粘性係数 / 非ニュートン流体 / 数値計算 / 波力 / 評価式 / 一様流 / 粘度
Outline of Final Research Achievements

To establish a numerical analysis method for the resilience of coastal protection facilities against tsunamis containing suspended sediment, this study was devoted to proposing an evaluation equation for the viscosity of water containing suspended sediment, developing a numerical model combined with the proposed equation, and examining and discussing the influence of suspended sediment on the stability of coastal protection facilities against tsunamis using the developed model. Numerical simulations showed that the maximum tsunami forces induced by impact bore pressure and quasi-steady wave pressure increased with suspended sediment concentration. This suggested that it is essential to consider the influence of suspended sediment in assessing the stability of coastal protection facilities against tsunamis and the developed model is a useful tool contributing to the enhancement of the resilience of coastal protection facilities.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (18 results)

All 2017 2016 2015 2014

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Acknowledgement Compliant: 7 results,  Open Access: 4 results) Presentation (10 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] STUDY ON VISCOSITY CHANGE DUE TO SUSPENDED SEDIMENT AND ITS INFLUENCE ON FLOW FIELD UNDER UNIFORM FLOW AND TSUNAMI2016

    • Author(s)
      中村友昭,鈴木愛美,趙 容桓,水谷法美
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

      Volume: 72 Issue: 2 Pages: I_163-I_168

    • DOI

      10.2208/jscejoe.72.I_163

    • NAID

      130005263219

    • ISSN
      2185-4688
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Study on the evaluation of temporal change in horizontal and vertical tsunami forces acting on a bridge superstructure2016

    • Author(s)
      Nakamura, T., Sawa, Y., and Mizutani, N.
    • Journal Title

      Coastal Engineering Journal

      Volume: 58(4) Issue: 4 Pages: 1640020-1-1640020-27

    • DOI

      10.1142/s0578563416400209

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 津波の越流による海岸堤防裏法尻の洗掘に関する大規模実験の数値シミュレーション2016

    • Author(s)
      中村友昭,水谷法美
    • Journal Title

      ながれ

      Volume: 35(4) Pages: 379-390

    • NAID

      40021010628

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] MEASUREMENT AND EVALUATION OF VISCOSITY OF FLUID CONTAINING HIGHLY-CONCENTRATED SUSPENDED SEDIMENT2015

    • Author(s)
      中村友昭,鈴木愛美,水谷法美
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

      Volume: 71 Issue: 2 Pages: I_1185-I_1190

    • DOI

      10.2208/jscejoe.71.I_1185

    • NAID

      130005097567

    • ISSN
      2185-4688
    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] A Numerical Simulation of Wave-Induced Topographic Change in Shallows Composed of Fine Sand2014

    • Author(s)
      Cho, Y.-H., Nakamura, T., Mizutani, N., and Lee, K.-H.
    • Journal Title

      Journal of Advanced Simulation in Science and Engineering

      Volume: 1 Issue: 1 Pages: 72-86

    • DOI

      10.15748/jasse.1.72

    • NAID

      130004709206

    • ISSN
      2188-5303
    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] AN EXPERIMENTAL STUDY ON INFLUENCES OF COHESIVE SEDIMENTS ON SEDIMENT TRANSPORT OF MIXED SOIL2014

    • Author(s)
      Cho, Y.-H., Nakamura, T., Suzuki, M., and Mizutani, N.
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

      Volume: 70 Issue: 2 Pages: I_738-I_743

    • DOI

      10.2208/jscejoe.70.I_738

    • NAID

      130004961867

    • ISSN
      2185-4688
    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] STUDY ON DISPLACEMENT OF AN INLAND STRUCTURE DUE TO TSUNAMIS AND LOCAL SCOURING AND ITS COUNTERMEASTURES2014

    • Author(s)
      中村友昭,根笹裕太,水谷法美
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

      Volume: 70 Issue: 2 Pages: I_331-I_336

    • DOI

      10.2208/jscejoe.70.I_331

    • NAID

      130004697302

    • ISSN
      2185-4688
    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] STUDY ON WAVE FORCE ACTING ON AN INLAND STRUCTURE DUE TO TSUNAMIS FLOWING OVER A SEAWALL AND ITS EVALUATION METHODS2014

    • Author(s)
      中村友昭,中島彩,水谷法美
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

      Volume: 70 Issue: 2 Pages: I_408-I_413

    • DOI

      10.2208/jscejoe.70.I_408

    • NAID

      130004697316

    • ISSN
      2185-4688
    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 越流した津波により海岸堤防裏法尻に生じる流れ場の形成条件に関する数値解析2017

    • Author(s)
      日比野加奈
    • Organizer
      平成28年度土木学会中部支部研究発表会
    • Place of Presentation
      金沢大学角間キャンパス
    • Related Report
      2016 Annual Research Report
  • [Presentation] 越流した津波による海岸堤防裏法尻の洗掘に与える蛇籠工の効果に関する一考察2017

    • Author(s)
      谷口淳也
    • Organizer
      平成28年度土木学会中部支部研究発表会
    • Place of Presentation
      金沢大学角間キャンパス
    • Related Report
      2016 Annual Research Report
  • [Presentation] 高濃度の浮遊砂が津波力に与える影響に関する一考察2017

    • Author(s)
      中村友昭
    • Organizer
      平成28年度土木学会中部支部研究発表会
    • Place of Presentation
      金沢大学角間キャンパス
    • Related Report
      2016 Annual Research Report
  • [Presentation] 浮遊砂が遡上津波の流動場や作用波力に及ぼす影響に関する一考察2016

    • Author(s)
      鈴木愛美,中村友昭,水谷法美
    • Organizer
      平成27年度土木学会中部支部研究発表会
    • Place of Presentation
      豊田工業高等専門学校(愛知県豊田市)
    • Year and Date
      2016-03-04
    • Related Report
      2015 Research-status Report
  • [Presentation] 漂砂による地形変化計算時における斜面崩壊計算の簡易的な取り扱いについて2016

    • Author(s)
      中村友昭,水谷法美
    • Organizer
      平成27年度土木学会中部支部研究発表会
    • Place of Presentation
      豊田工業高等専門学校(愛知県豊田市)
    • Year and Date
      2016-03-04
    • Related Report
      2015 Research-status Report
  • [Presentation] Study on stability of buildings against tsunami run-up and scour2016

    • Author(s)
      Nakamura, T.
    • Organizer
      Two-Phase Modelling for Sediment Dynamics in Geophysical Flows (THESIS 2016)
    • Place of Presentation
      Chuo University, Tokyo, Japan
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical simulation of tsunami scour at landward toe of coastal dike and its countermeasures2016

    • Author(s)
      Mizutani, N.
    • Organizer
      Two-Phase Modelling for Sediment Dynamics in Geophysical Flows (THESIS 2016)
    • Place of Presentation
      Chuo University, Tokyo, Japan
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 漂砂による地形変化計算時における斜面崩壊の取り扱いに関する一考察2016

    • Author(s)
      中村友昭
    • Organizer
      土木学会第71回年次学術講演会
    • Place of Presentation
      東北大学川内北キャンパス
    • Related Report
      2016 Annual Research Report
  • [Presentation] 高濃度の浮遊砂を含む津波の遡上挙動に関する数値シミュレーション2016

    • Author(s)
      中村友昭
    • Organizer
      第30回数値流体力学シンポジウム
    • Place of Presentation
      タワーホール船堀
    • Related Report
      2016 Annual Research Report
  • [Presentation] 高濃度浮遊砂含有時の流体の粘度に関する一考察2015

    • Author(s)
      鈴木愛美,中村友昭,水谷法美
    • Organizer
      平成26年度土木学会中部支部研究発表会
    • Place of Presentation
      豊橋技術科学大学
    • Year and Date
      2015-03-06
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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