PILE HEAD TREATMENT METHOD AND PILE HEAD TREATMENT APPARATUS FOR CAST-IN-PLACE CONCRETE PILE

摘要

PROBLEM TO BE SOLVED: To provide a pile head treatment method and a pile head treatment apparatus for a cast-in-place concrete pile, capable of eliminating the height difference of a concrete top end in concrete which is not hardened yet at a pile head part of the cast-in-place concrete pile and appropriately securing the future form and concrete strength of hardened pile head part concrete.;SOLUTION: Onto a top end 10 of concrete C which is not hardened yet at the pile head part of a cast-in-place concrete pile K, a pile head treatment apparatus 1 including an apparatus body 2 whose bottom surface is in an inverted conical shape and a weight 3 is lifted down with a crane 9. A bottom surface part 4a of a bottom lid 4 is grounded on the top end 10 of the concrete C at the pile head part, and by pushing and spreading the concrete C at the pile head part from the center part into the peripheral direction by the bottom surface part 4a while settling the apparatus body 2 into the concrete C of the cast-in-place concrete pile K which is not hardened yet while opposing buoyancy acting on the apparatus body 2 by utilizing the weight 3, the top end 10 of the concrete C is leveled.;COPYRIGHT: (C)2012,JPO&INPIT