The drilling rig for continual subterranean wall formation and uses this the continual subterranean wall formation construction method

摘要

PROBLEM TO BE SOLVED: To efficiently conduct the continuous underground wall forming work. ;SOLUTION: A continuous underground wall forming excavator has a cleaning function when it is combined with cut face cleaning jigs 2. A cutter drum 11 is provided with a drum portion 111, multiple holders 112, and cutters. The drum portions (rotary shafts) 111 are provided in parallel below a main body portion, and they are rotatively driven in opposite directions (a), (b). Multiple holders 112 are provided at intervals on the outer peripheral face of the drum portion 111. The cutters are removably fitted to multiple holders 112 respectively. A cut face cleaning jig 2 contains a brush 21, and it is fitted to each of multiple holders 112.;COPYRIGHT: (C)1997,JPO