Chisel hammer for pile removal

摘要

PROBLEM TO BE SOLVED: To provide a chisel hammer for pile removal and a removal method for an existing concrete pile using the same that efficiently destroy the existing concrete pile and therefore curtail time needed for demolition.SOLUTION: A chisel hammer 10 for pile removal is dropped into a cylindrical casing embedded around an existing concrete pile, for destroying the existing concrete pile. The chisel hammer 10 for pile removal has an inclined side 20d that makes a hammer body 20 widen toward the existing concrete pile from the casing in an upward direction from a tip 21 side of the hammer body 20. When the tip of the hammer body 20 drops between the casing and the existing concrete pile, the existing concrete pile is pressed to break a top part of the existing concrete pile.SELECTED DRAWING: Figure 2