CONSTRUCTING METHOD FOR PRELIMINARY UNDERGROUND WALL PRECEDING EXCAVATION OF DITCH FOR CONTINUOUS UNDERGROUND WALL

摘要

PURPOSE:To enable to build a preliminary underground wall having a smooth wall surface, by a method wherein, after a ditch is digged along both sides of a place, where a continuous underground wall is planned to be built, as the digged part is filled with a stabilizing solution, the stabilizing solution in the ditch is cured. CONSTITUTION:After a ditch 1a is excavated along both sides of a spot 2a, where a continuous underground wall 2 is panned to be built, as the excavated part is filled with a stabilizing solution such as bentonite muddy water, a polymer solution, the stabilizing solution in the ditch is cured to build a preliminary underground 1. An iron reinforcing cage is then inserted into the ditch, and concrete is placed to continuous underground wall 2. Thus, a wall surface is flat, and thereby, the surface is decreased in a rough-out part at an excavating time, and this eliminates the fear to form an uneven surface due to collapse of earth and sand in a concavity.