The development of ground deformation evaluation method considering void re-distribution due to liquefaction
| Project/Area Number |
25420510
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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 | Nihon University |
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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 |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 液状化 / 間隙 / 再配分 / 地盤変状 / 液状化強度 / 地盤調査 / 間隙水圧 / 液状化対策 / 体積膨張 / 体積収縮 / 余震 / ドレーン / 中空ねじりせん断試験 / 動的コーン貫入試験 / 有効応力解析 |
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| Outline of Final Research Achievements |
Liquefaction due to earthquake induces the upward movement of water in the ground. As a result, a looser part is formed underneath the non-liquefiable surface layer. This part becomes weak part in the ground and causes the severe damages for infrastructures. In this research, liquefaction resistance not at the looser part due to inflow, but at the denser part due to outflow of pore water were studied by the laboratory element tests. The decreasing and increasing ratio against undrained liquefaction resistance were suggested and evaluated quantitatively.
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Report
(4 results)
Research Products
(17 results)
