LARGE SECTIONAL UNDERGROUND WALL SUCH AS CONNECTING WALL, COUPLING WALL, ADDING WALL, ETC., HAVING HIGH STRENGTH WITH EXTERIOR WALL SURFACE IN NEIGHBORING LINE POSITION OR LARGE SECTIONAL UNDERGROUND WALL SUCH AS CONNECTING WALL, COUPLING WALL, ADDING WALL, ETC.

摘要

PURPOSE:To make it possible to provide an exterior wall surface over the length of a boundary by constructing a narrow straight line type wall piece after a straight line type underground wall is constructed by an excavation working machine placed in a neighboring line position. CONSTITUTION:An approximate straight-line type excavated hole is excavated by an excavation working machine, cement is poured into the hole, and then, force-fit of a reinforced cage is made to construct an approximate straight line type underground wall piece B. After that, in the same manner, a straight line type underground wall A is constructed. The straight line type underground wall pieces A and B are connected to each other, and a large sectional underground wall C having high strength and providing an exterior wall surface C' is constructed in a neighboring line position D. According to the constitution, a construction having excellent strength can be constructed.