PILE HEAD PROCESSING METHOD FOR PRECAST PRESTRESSED CONCRETE PILE

摘要

PURPOSE: To improve the sticking performance between the inner face of a precast prestressed concrete pile and placed concrete. ;CONSTITUTION: Multiple circular cotter plates 2 are buried in the pile axis direction along the whole periphery of the inner face of a pile head, a precast prestressed concrete pile 1 is placed at a specific position while the cotter plates 2 are covered by a protective sheet, the inside of the pile head is cleaned to a specific depth, then the protective sheet is removed. An umbrella-like concrete receiving formwork 5 is inserted into the inside of the pile head in the closed state, the umbrella-like concrete receiving formwork 5 is spread and fixed to the inside of the pile head, cage reinforcing bars 11 are inserted into the inside of the pile head, then concrete is placed at a pile head section.;COPYRIGHT: (C)1994,JPO&Japio