DRILLING DEVICE FOR BURYING PILE MATERIAL AND METHOD OF BURYING PILE MATERIAL

摘要

PROBLEM TO BE SOLVED: To efficiently perform construction by removing obstacles such as stones in parallel with press-fitting work without preparing a device for removing obstacles.;SOLUTION: A drilling device 1 for burying a pile material comprises a drilling member 8 which drills the ground before burying a pile material P1. In a head 2 including the drilling member 8, a pile material engagement 3 which is engaged to a distal end of the pile material P1 is provided in a freely rotatable manner. First of all, the pile engagement 3 is rotated and fixed to the distal end of the pile material P1 to be press-fitted, in accordance with a direction of the pile material P1. The pile material P1 is then chucked by a pile press-fitting machine 11, and the drilling device 1 for burying the pile material is pushed into the ground. After the ground is drilled by the drilling member 8, the pile material P1 is pulled out to below a chuck 15 of the pile press-fitting machine 11 by a crane. After soil drilled by the drilling member 8 is removed, the drilling device 1 for burying the pile material is removed from the distal end of the pile material P1, and the pile material P1 is press-fitted into a drilled hole by the pile press-fitting machine 11 and buried.;COPYRIGHT: (C)2014,JPO&INPIT