2017 Fiscal Year Final Research Report
Influences of air phase entrapment and leakage on quality of an earth structure
| Project/Area Number |
15K06211
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geotechnical engineering
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| Research Institution | Kindai University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 不飽和土 / 空気相 |
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| Outline of Final Research Achievements |
It is known that rainfall infiltration can cause unstabilization of an earth structure and rainfall simulation and site monitoring have been conducted. However, the behavior of air phase induced by rainfall infiltration has not been sufficiently investigated. In this study, air pressure behavior within an earth structure was investigated through soil/water/air coupled simulation and a full-scale embankment test. First, rainfall infiltration into a slope was simulated under various conditions and it was found that air pressure localization occurs due to rainfall infiltration. Next, the infiltration behavior was monitored on full scale embankment. Consequently, different tendency of air pressure distribution according to rainfall intensity was obtained and it showed good agreement with simulation results.
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| Free Research Field |
地盤工学
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