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Liquefaction countermeasure structure of the ground using the structure load
Liquefaction countermeasure structure of the ground using the structure load
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机译：利用结构荷载作用的地面液化对策结构
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摘要
PROBLEM TO BE SOLVED: To provide a liquefaction countermeasure structure for soft subgrade, by which an effect of restraining liquefaction is large and a sufficient bearing capacity can be obtained, and which can restrict normal subsidence, while shortening a construction period and reducing costs by increasing a lattice interval of an underground structure.;SOLUTION: A subgrade liquefaction countermeasure structure includes an underground structure 6 which is constructed from an underground wall and formed in a lattice shape in a plan view, and a structure 2 which is constructed above the underground structure 6. The underground structure 6 is set in a position such that the depth position of the top part of the underground structure 6 does not contact with a structure bottom when a structure 20 subsides in an earthquake, and does not support the structure. A structure load transfer body is disposed in a subgrade 5 of which top face is in contact with the structure bottom and which is surrounded by the underground structure, and the structure 2 is not supported by the underground structure 6 and is supported by the subgrade 5 surrounded by the underground structure therebelow via the structure load transfer body 7. Thereby, the subgrade liquefaction countermeasure structure utilizes an effect of restraining liquefaction of subgrade shear deformation restriction by the underground wall and increase in an effective stress of the subgrade by the load of the structure, and strengthens the bearing capacity of the subgrade.;COPYRIGHT: (C)2014,JPO&INPIT
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