Challenge to propose a new erosion failure criteria of soil
| Project/Area Number |
23656293
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Geotechnical engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
KAZAMA MOTOKI 東北大学, 工学(系)研究科(研究院), 教授 (20261597)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 浸透破壊 / パイピング / 土砂流失 / 拘束圧 / 土粒子の流失 / 侵食 / せん断破壊 / 細粒分 / 破壊基準 / 要素試験 / 陥没事故 |
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| Research Abstract |
To study a phenomena of erosion failure of soils as a soil element, an experimental apparatus was developed. The apparatus make it possible to apply arbitrary confining pressure and internal water pressure, and to reproduce erosion failure of soils by spilling out soil particle from the opening of pipe. By using the apparatus, it is possible to evaluate the resistance of soil material against to erosion failure.
As a result of the experiment, it was found that the larger the initial confining pressure, the smaller the erosion velocity of soil particles, and it was also found that the confining pressure effect on erosion failure experimentally.
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Report
(4 results)
Research Products
(9 results)
