EXECUTION METHOD OF STEEL PIPE PILE FOR ROTARY PRESS-IN

摘要

PROBLEM TO BE SOLVED: To provide the execution method of a rotary-press-in steel pipe pile, by which the state of slipping is solved rapidly when the rotary press-in steel pipe pile is slipped and excavation driving force is recovered. SOLUTION: The steel pipe pile 23 for rotary press-in having a blade 12 at a front end section is pressed gradually into a ground 24 while being propelled and turned. When the penetration of the steel pipe pile 23 for rotary press-in is slowed remarkably at that time the steel pipe pile 23 for rotary press-in is pulled out at a proper distance while being reversely revolved, and the steel pipe pile 23 for rotary press-in is pressed into the ground 24 again while being propelled and rotated.