| 摘要 |
PROBLEM TO BE SOLVED: To provide a counter measure structure for liquefaction capable of largely reducing construction cost and a construction period for counter measures for liquefaction, by stably supporting the structure, even if the ground is liquefied. SOLUTION: This structure 4 is constructed on the ground 1 composed of a liquefaction layer 2 and an unliquefied layer 3 under the liquefaction layer 2. A ground improver 5 having the predetermined width thickness is formed up to the unliequefied layer 3 from a foundation lower end surface of the structure 4 on the outer periphery of the structure 4. An area surrounded by the ground improver 5 is a ground unimproved part 6. The ground improver 5 is not necessary to be a continuous body in a plan view, and the composite ground composed of the ground improver 5 of the outer periphery of the structure 4 and the ground unimproved part 6 surrounded by the ground improver 5, preferably has a predetermined equivalent shearing elastic modulus, and the ground improver 5 may be formed at a specific separate interval on the outer periphery of the structure 4. COPYRIGHT: (C)2005,JPO&NCIPI
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