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2013 Fiscal Year Final Research Report

A study on rapid erosion into bedrock observed in river channels

Research Project

  • PDF
Project/Area Number 24760387
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Hydraulic engineering
Research InstitutionPublic Works Research Institute (2013)
Hokkaido University (2012)

Principal Investigator

KAWAMURA Satomi (山口 里実)  独立行政法人土木研究所, その他部局等, 研究員 (70399583)

Project Period (FY) 2012-04-01 – 2014-03-31
Keywords水工水理学
Research Abstract

The purposes of this study are to make clear the bedrock erosion mechanism and the erosion rate to reveal the riverbed degradation due to bedrock erosion which has been going on rapidly. I performed experiments on the bedrock erosion rate by using bedrock samples picking from actual rivers where bedrock was exposed. As the results of the experiments, I found that the erosion rate in the case with sediment supply was much larger than that only with flowing water and the erosion rate showed dependence on the amount of sediment supply. I also reviewed results of other experiments performed before to make a formula of the bedrock erosion rate which consists of the amount of sediment supply, particle size and bedrock properties.

  • Research Products

    (3 results)

All 2014 2013 2012

All Presentation (3 results)

  • [Presentation] 給砂量と岩床侵食地形の関係2014

    • Author(s)
      井上卓也,清水康行,Gary Parker,山口里実,伊藤丹
    • Organizer
      土木学会論文集B1(水工学)
    • Place of Presentation
      (Vol.70,No.4,I_1039-I_1044)
    • Year and Date
      20140000
  • [Presentation] 岩床河川における流砂移動モデルの構築と粒子の運動形態の解明2013

    • Author(s)
      後藤裕也,木村一郎,川村里実,清水康行,井上卓也
    • Organizer
      土木学会北海道支部論文報告集
    • Place of Presentation
      (第65号,B-27)
    • Year and Date
      20130000
  • [Presentation] 急流都市河川豊平川における河道内構造物の維持管理および植生管理に関する検討-平成23年9月出水を受けて-2012

    • Author(s)
      内田有吏子,岩崎理樹,山口里実,鈴木栄一,清水康行
    • Organizer
      土木学会河川技術論文集
    • Place of Presentation
      (第18巻,203-208)
    • Year and Date
      20120000

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Published: 2015-06-25   Modified: 2015-07-14  

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