ROTARY JACKED PILE, METHOD FOR BURYING ROTARY JACKED PILE, AND FOOT PROTECTION METHOD FOR FOR THE ROTARY JACKED PILE

摘要

PROBLEM TO BE SOLVED: To provide a method for burying a rotary jacked pile and the rotary jacked pile capable of reducing rotation torque of the pile without loosening support ground and strengthening it further, without loosening side wall ground and the support ground.;SOLUTION: This rotary jacked pile consists of an excavation blade 3 provided at a tip of a hollow pile main body 2 and an injection port 6 provided in a scope of a hollow part of the pile main body 2 of the excavation blade 3 to inject a fluid into the ground so that rotation resistance is reduced while the fluid is injected into the ground from the injection port 6 and the pile can be pressed into the ground while rotating.;COPYRIGHT: (C)2001,JPO