High tension injection agitation mixed construction method and high tension injection agitation mixed device

摘要

PROBLEM TO BE SOLVED: To suppress the discharge of sludge and a hardener mixed therein onto the ground and to enhance the construction speed. ;SOLUTION: In this construction method for pulling up a rod 1 inserted into the ground while at a high-pressure injecting a hardener H from the lower discharge port 3 of the rod 1 and injecting high-pressure water HW together with air Ai from an upper discharge port 4 on the base end side to construct a consolidated-body by the hardener in the ground, a substantially continued upper spiral blade 5 protruded from the circumferential surface of the rod 1 and positionally changed from the upper part to the lower part along the rotating directional advance of the rod 1 in a plan view is provided on at least the upper part of the upper discharge port 4 to promote the discharge of cut slime S onto the ground side. A discharge suppressing member 6 protruded from the circumferential surface of the rod 1 to suppress the discharge of the mixed material of the hardener with the soil onto the ground side is provided on at least the upper part of the lower discharge port 3.;COPYRIGHT: (C)2001,JPO