ASEISMATIC COUNTERMEASURE CONSTRUCTION METHOD OF TUNNEL USING BASE ISOLATION MATERIAL, CONSTRUCTION METHOD OF ITS BASE ISOLATION WALL AND ITS CONSTRUCTION STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide an aseismatic countermeasure construction method of a tunnel using a base isolation material, and a construction method of its base isolation wall, capable of improving aseismatic performance as a whole, by reducing generating cross-sectional force of the whole member.;SOLUTION: This construction method of the base isolation wall of the tunnel can construct the continuous base isolation wall having the equal thickness in the ground by continuously excavating by successively moving in the horizontal direction, by agitating and mixing or replacing a solidifying liquid and cutting earth, by cutting the ground by rotating a cutter chain 44 by a base machine having a chain saw type cutter inserted into the ground 41, when applied to an existing tunnel.;COPYRIGHT: (C)2006,JPO&NCIPI