2012 Fiscal Year Final Research Report
Development of cost effective liquefaction countermeasure technique by air injection and evaluation of its impact to on geo-environment.
| Project/Area Number |
21360226
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | Ehime University |
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Principal Investigator |
OKAMURA Mitsu 愛媛大学, 大学院・理工学研究科, 教授 (50251624)
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| Co-Investigator(Kenkyū-buntansha) |
YASUHARA Hideaki 愛媛大学, 大学院・理工学研究科, 准教授 (70432797)
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| Project Period (FY) |
2009 – 2012
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| Keywords | 液状化 / 液状化対策 / 不飽和 |
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| Research Abstract |
Objective of this research is to develop a cost effective liquefaction countermeasure technique by air injection and to propose a design and execution manual. The following items are in particularly studied.
(1) Mechanism of instability of existing structures when foundation soil immediately below the structures is desaturated.
(2) Evaluation of effectiveness to reduce deformation and settlement during strong base shaking.
(3) Relationship between liquefaction strength ration and volumetric strain for silt and silt mixed sand.
(4) A design and execution manual is published.
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