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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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2007: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
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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 / 三次元 / 透水係数の逆解析 / 性能設計 / DEM解析 / 流重急増時水頭差 / 変形開始水頭差 / パイピング / 限界状態 |
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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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Report
(6 results)
Research Products
(81 results)
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[Presentation] 二次元集中流地盤の浸透破壊-実験と解析-2008
Author(s)
田中 勉, Pham Thi Hanh Tran, 石渡洋子, 大西慶一, 井上一哉
Organizer
第43回地盤工学研究発表会平成20年度発表講演集(1073-1074)
Place of Presentation
広島県,広島市
Year and Date
2008-07-11
Related Report
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