| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of demolishing and removing an underground structure capable of safely and surely demolishing and completely removing an underground structure constructed adjacent to an adjacent site without using an earth retainer such as a sheet pile. SOLUTION: This method of demolishing and removing an underground structure comprises: a first step of demolishing and removing an inside underground structure such as inside slabs 6 and columns 2, partition walls, pressure plates 7, and inside foundation 8 while leaving the columns 2 and walls 3 forming the outer shell part of the underground structure 1 facing the boundary of the adjacent site; a second step of refilling a space formed by demolishing the inside underground structure such as the inside slabs 6 and columns, partition walls, pressure plates 7, and inside foundation 8 with soil for preventing the adjacent site from collapsing when the walls 3 or the walls 3 and the columns 2 forming the outer shell part are removed; a third step of vertically cutting and separating, at multiple positions, the walls 3 or the walls 3 and the columns 2 forming the outer shell part facing the boundary of the adjacent site which were not removed; and a fourth step of extracting the cut and separated walls 3 or the walls 3 and the columns 2 in order. COPYRIGHT: (C)2009,JPO&INPIT
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