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Elucidation on the mechanics of scour around marine structures and the numerical modeling of the interaction among fluid, sediment and seabed.

Research Project

Project/Area Number 19760335
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field 水工水理学
Research InstitutionKanazawa University

Principal Investigator

UMEDA Shinya  Kanazawa University, 環境デザイン系, 講師 (30313688)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,470,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2007: ¥2,300,000 (Direct Cost: ¥2,300,000)
Keywords海中構造物 / 海底地盤 / 局所洗掘 / 底質輸送 / 渦流 / 流体解析 / 水理実験 / 移動床流れ / 海岸工学 / 洗掘
Research Abstract

海中にある土木構造物の基礎部材として多用される円柱基礎を対象に模型実験を行い, 周辺の渦流れや土砂の挙動および地盤面地形の変動過程を最新の計測技術を導入して詳しく調べた. さらに, 構造物周辺の水・土砂・地盤面の運動を精密に表す数式モデルを作成し, 様々な条件に対してシミュレーションを行った. その結果, 基礎周辺で発生する海底地盤の侵食(洗掘)のメカニズムを明らかにするとともに, 静的および動的な洗掘現象の発達過程の特徴を正確に再現可能な計算手法を開発することができた.

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (6 results)

All 2009 2008

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (1 results)

  • [Journal Article] Forces and vortex patterns around a circular cylinder in asymmetric oscillatory plus mean flow2009

    • Author(s)
      S. Umeda, M. Yuhi and H. Ishida
    • Journal Title

      Proc. of the 5th Coastal Structures International Conference

      Pages: 1000-1012

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Three-dimensional numerical model for wave-induced scour around a Vertical Cylinder2009

    • Author(s)
      S. Umeda, M. Yuhi and H. Ishida
    • Journal Title

      Proc. of the 31th Int. Conf. on. Coastal Engineering 2008 (印刷中)(掲載確定)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three-dimensional numerical model for wave-induced scour around a Vertical Cylinder2008

    • Author(s)
      S. Umeda, M. Yuhi and H. Ishida
    • Journal Title

      Proc. of the 31th Int. Conf. on Coastal Engineering 2008, ASCE (in press)

      Pages: 13-13

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Time evolution of scour and deposition around a cylindrical pier in steady flow2008

    • Author(s)
      S. Umeda, T. Yamazaki and H. Ishida
    • Journal Title

      Proc. of the 4th Int. Conf. on Scour and Erosion

      Pages: 140-146

    • Related Report
      2008 Annual Research Report 2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Forces and vortex patterns around a circular cylinder in asymmetric oscillatory plus mean flow2008

    • Author(s)
      S. Umeda, M. Yuhi and H. Ishida
    • Journal Title

      Proc. of Int. conf. on Coastal Structures 2007 (印刷中)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] 円柱橋脚周辺の洗掘地形のステレオ画像計測実験2009

    • Author(s)
      山崎達夫, 高田亮平, 楳田真也, 石田啓
    • Organizer
      平成20年度土木学会中部支部研究発表会
    • Place of Presentation
      名古屋
    • Year and Date
      2009-03-03
    • Related Report
      2008 Annual Research Report 2008 Final Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

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