GROUND IMPROVING PILE CONSTRUCTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a pile construction method for improving the ground using an expansive solidifying material in a slurry condition to improve soft ground. SOLUTION: In this pile construction method for improving the ground by placing a slurry of the expansive solidifying material into the soft ground and solidifying it, the expansive solidifying material contains at least cement and quick lime, the hydration reaction of the cement and the quick lime is delayed within a scope of 30 minutes or more after adding water to the expansive solidifying material, and the hydration reaction of the cement progresses at a lower speed than a speed of the hydration reaction of the quick lime.