2012 Fiscal Year Final Research Report
Development of reasonable liquefaction strength estimation for cohesive sandy soils
| Project/Area Number |
22560500
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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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) |
2010 – 2012
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| Keywords | 液状化 / 砂質土 / 粘着力 / 一面せん断試験 / 液状化判定 |
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| Research Abstract |
Stress-controlled cyclic direct shear test to simply estimate cyclic resistance ratio (CRR) of cohesive sandy soil such as treated soil by lower cost was proposed in this study. Cyclic shear tests for various sandy soils and clay were conducted. The CRR obtained by proposed test gave a good agreement with the CRR obtained by conventional cyclic test of hollow cylinder test. In addition, the problem to be solved for practice application such as a reasonable criteria decision of double amplitude horizontal displacement for triggering liquefaction was pointed out.
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