MONITOR FOR SOIL IMPROVEMENT, DEVICE FOR SOIL IMPROVEMENT, AND METHOD FOR SOIL IMPROVEMENT USING THE MONITOR FOR SOIL IMPROVEMENT

摘要

PROBLEM TO BE SOLVED: To provide a monitor for soil improvement enabling the development of a large-diameter improved body despite the fact that it is of a direct drilling system and also enabling the shortening of a working time.;SOLUTION: This monitor for soil improvement has a water supply passage 7 for supplying water. A discharge hole 3b for drilling used for discharging water into the ground is formed at the wall surface of the water supply passage 7. A cut-off means 12 for cutting off water by reversely be deformed and fit to the wall surface is installed on the wall surface on the upstream side of the discharge hole 3b for drilling.;COPYRIGHT: (C)2009,JPO&INPIT