| 摘要 |
PROBLEM TO BE SOLVED: To provide a constructing method for a tip-reinforcing cast-in-place pile, which brings about improved construction accuracy and working efficiency, and positively reinforces the ground near the tip of the pile. SOLUTION: According to the method of constructing the cast-in-place pile, first a cage (2) having a steel frame (3) attached to the tip thereof is built in an excavated hole. The steel frame (3) has an injection bag (4) set on a bottom thereof. Then the steel frame is crushed by the pile bottom to expand the injection bag on the pile bottom, and a grouting material is injected in the ground with pressure, followed by pressurizing the ground in the vicinity of the pile tip. In the method, an injection pipe (20) for injecting the grouting material into the ground with pressure, and a slime discharging pipe (21), are each formed of a flexible rigid resin hose. COPYRIGHT: (C)2006,JPO&NCIPI
|
