A study on rapid erosion into bedrock observed in river channels
| Project/Area Number |
24760387
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Hydraulic engineering
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| Research Institution | Public Works Research Institute (2013)
Hokkaido University (2012) |
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Principal Investigator |
KAWAMURA Satomi 独立行政法人土木研究所, その他部局等, 研究員 (70399583)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 水工水理学 / 河川工学 |
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| 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.
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Report
(3 results)
Research Products
(6 results)
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[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)
Related Report
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