Mechanisms of liquefaction-prone initial stresses in embankments caused by formation of arch and damage-resistant materials requirements against excessive basal settlement
| Project/Area Number |
25820213
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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 |
Geotechnical engineering
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| Research Institution | Kyoto University (2014-2015)
Tokyo Institute of Technology (2013) |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | アーチ効果 / 荷重分布 / 地盤沈下 / 下界定理 / 締固め土 / 盛土 / 模型実験 / 土質力学 / 極限解析 / 安息角 |
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| Outline of Final Research Achievements |
Active and passive limits in sand heaps provide a fundamental knowledge on arch action under two extreme conditions. In the present study, the lower bound limits of an infinite wedge were analyzed. To validate the results, a series of physical models of an embankment inclined at angle of repose was conducted. As the basal deflection was slightly increased, the central pressure significantly decreased. Once the base was upturned, the central pressure gradually increased. Though hysteretic reversals were applied in the experiments, active and passive limits were reasonably consistent with measurements in a certain range of deformation.
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Report
(4 results)
Research Products
(19 results)
