DEVICE AND METHOD FOR PLACING AND CUTTING DRAIN MATERIAL FOR GROUND IMPROVEMENT, AND GROUND IMPROVEMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a device and a method for placing and cutting a drain material for ground improvement, and the ground improvement method, in which a placing device for placing the drain material in the ground can also be used as a cutting device, the drain material can be surely cut in the ground, and the work efficiency can be improved.;SOLUTION: The device 1 for placing and cutting the drain material for the ground improvement can place the drain material 13 in the ground 2. The drain material 13 has a cut part S1 which can be cut by a predetermined tensile force. The device 1 can also cut the cut part S1 by applying the predetermined tensile force to the drain material 13. The device 1 comprises a cylindrical casing member 16 having a hollow part inside. The drain material 13 is inserted into the casing member 16 to be movable in the longitudinal direction, and an anchor member 11 is engaged with the front end of the casing member 16. The device 1 further comprises a casing transfer means for inserting the casing member 16 into the ground 2 under pressure and pulling it out from the ground 2, and a drain material fixing means 25 provided in the casing member 16 to hold a part of the drain material 13 in the hollow part in a sandwiching manner.;COPYRIGHT: (C)2007,JPO&INPIT