| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of constructing an underground vibration isolation wall with excellent construction efficiency without using a large heavy machine. SOLUTION: This method of constructing an underground vibration isolation wall comprises an excavating step of forming a recessed groove 9 by excavating a ground, an arrangement step of inserting and arranging vibration isolation block 10 in the recessed groove, and a step of filling with a backfill material 11 formed by mixing sediment and cement. In the excavating step, a preliminarily excavated groove 2 with the generally same width as the recessed groove to be excavated is excavated, a frame body is formed, in the preliminarily excavated groove, of a slide rail unit 5 having a pair of slide rails 3, 3 and a short strut 4 and a soil retaining panel 7 inserted between the opposed slide rails of the slide rail unit, and the frame body is pushed into the preliminarily excavated groove while excavating the portion between the soil retaining panels and the lower part of the soil retaining panel to form the recessed groove. In the backfilling step, the soil retaining panel is raised while placing the backfilling material between the vibration isolation block and the side walls of the recessed groove. COPYRIGHT: (C)2009,JPO&INPIT
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