GROUND IMPROVEMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a ground improvement method for soft ground capable of setting an anchor in soft ground and improving the ground or preventing the liquefaction of the ground. SOLUTION: This method comprises a process for inserting a pipe 2 having an expansible anchor 1 set at the tip to a scheduled depth T of ground G; a process for filling a solidifier M into the anchor 1 at the tip through a solidifier passage 21 in the pipe 2 to expand the anchor 1; a process for filling the solidifier M to an expansible member 3 provided in an optional position of the middle of the pipe 2 through the solidifier passage 21 to expand the expansible member 3 in the middle of the pipe 2; and a process for injecting the solidifier M passing through the solidifier passage 21 into the ground G through an injection port 4 provided in an optional position of the middle of the pipe 2.