STEEL PIPE PILE AND STEEL PIPE PILE IMPLEMENTATION METHOD

摘要

Forming a tip back surface (5) on the rearward side of the leading edge (3A) of the blade in the excavation direction prevents misalignment of the steel pipe pile (1) and causes the pile to penetrate the ground while ensuring the straight advancement thereof when the steel pipe pile (1) is rotated and pressed into the ground because the tip back surface (5) opposes the torque centered on the leading edge (3A) of the blade. Because a slanted opening (4) is formed on the forward side of the leading edge (3A) of the blade in the excavation direction, earth excavated by rotating and pressing the pile into the ground can be smoothly taken into the interior of the main body (2) of the steel pipe from the slanted opening (4) and resistance of the ground to excavation is limited while increased resistance to penetration due to blockage inside the pipe can be reduced by pushing the earth taken into the main body (2) of the steel pipe upward.