2011 Fiscal Year Final Research Report
Failure mechanism of soft cliff due to wave erosion and its evaluation
| Project/Area Number |
21560515
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geotechnical engineering
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| Research Institution | Muroran Institute of Technology |
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Principal Investigator |
KAWAMURA Shima 室蘭工業大学, 大学院・工学研究科, 准教授 (90258707)
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| Co-Investigator(Kenkyū-buntansha) |
MIURA Seiichi 北海道大学, 大学院・工学研究院, 教授 (00091504)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 波 / 侵食 / 斜面崩壊 / 模型試験 |
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| Research Abstract |
This study aims of clarifying mechanisms of cliff erosion and failure using a geo-centrifuge technique. Physical modelling of these problems at elevated gravities in a centrifuge can increase our understanding, especially for such complex phenomenon. In this study, the effects of cliff geometrical condition and wave condition on mechanisms of erosion and slope failures of the cliff for a short-term problem (likely to storm wave events) was revealed experimentally. Based on the test results, a prediction method for the progress of erosion recession was proposed, and its validity was investigated using the slope stability analysis based on field data.
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