| 摘要 |
PROBLEM TO BE SOLVED: To construct an economic and dynamically superior liquefaction preventive structure on the periphery of an arranging structure foundation such as an aboveground tank. SOLUTION: A solidification body block 11 forms a substantially dumpling shape continuously formed with a predetermined overlap in the depth direction by ground injection of permeable injection chemicals; and is formed so that the lower end reaches a non-liquefaction layer 4 along the outer periphery of a foundation 5 of an existing structure 1 such as the aboveground tank constructed on the ground having fear of causing liquefaction, to construct a shearing resistance wall 10 having the predetermined thickness. A flexing resistance core material 20 composed of three steel pipe sheet piles 21 so as to form a substantially triangular shape in a plan view, is also driven at a predetermined interval in a plane circular central position of the solidification body block 11 so as to surround the outer periphery of the foundation 5, to thereby prevent liquefaction by sufficiently restraining shearing deformation of the just under ground of the existing structure 1. COPYRIGHT: (C)2005,JPO&NCIPI
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