FROM FIRST OF ALL EXCAVATION RECLAMATION METHODOF PHC PICKETS WILL IMPROVE AND THE METHOD WILL BE ABLE TO THE METHOD

摘要

PURPOSE: A construction method for improving the supporting force of PHC pile is provided to increase supporting force by minimizing a slime which is the most serious problem. CONSTITUTION: A construction method for improving the supporting force of PHC pile comprises : a step of forming a perforation hole(100) on the location, in which a pile foundation is installed, after removing slime from the lower part of the perforation hole ; a step of inserting a PHC pile in the perforation hole ; a step of punching the bedrock in a fixed depth by using an excavator of small diameter ; a step of installing an air hole on the center of the PHV pile and removing slime ; a step of inserting a pipe the center part of the pipe and injecting cement paste into the center part ; and a step of injecting cement paste into the surrounding the PHC pile.