ROTARY PRESS-IN STEEL PIPE PILE

摘要

PROBLEM TO BE SOLVED: To provide a rotary press-in steel pipe pile with a blade of a large diameter which attains a smooth workability and an inexpensive manufacturing cost. SOLUTION: The steel pipe pile with a blade to be rotationally pressed into the ground has its spiral blade affixed firmly on the tip end of the steel pipe pile which is spirally cut. The uneven part between the start end and the terminal end of the tip part of the steel pipe pile spirally cut is formed into an arcuate shape. COPYRIGHT: (C)2005,JPO&NCIPI