2010 Fiscal Year Final Research Report
Study on Seepage failure mechanism of soil and estimation of critical hydraulic head differences under various flow conditions
| Project/Area Number |
19380136
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Irrigation, drainage and rural engineering/Rural planning
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| Research Institution | Kobe University |
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Principal Investigator |
TANAKA Tsutomu Kobe University, 大学院・農学研究科, 教授 (20144602)
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| Co-Investigator(Kenkyū-buntansha) |
INOUE Kazuya 神戸大学, 大学院・農学研究科, 助教 (00362765)
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| Project Period (FY) |
2007 – 2010
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| Keywords | 地盤工学 / 浸透破壊 / 締切り矢板 / 流れの条件 / 限界水頭差 / 変形開始時水頭差 / 破壊時水頭差 / PIV解析 |
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| Research Abstract |
It was clarified that the effects of flow conditions, such as 1D, 2D, 2DC, AXSC, 2DR and AXSR flows, on seepage failure phenomena of soil are very large. In this study, the critical hydraulic head differences H_c under various flow conditions were first calculated and summarized. Seepage failure of soil under the 2DC flow condition was next considered from (1) three case studies and (2) 25 experiments. Problem issues were presented by the case studies, and seepage failure mechanism was clarified by the experiments using PIV analyses.
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