IMPROVEMENT METHOD FOR SURFACE LAYER OF POOR GROUND

摘要

PURPOSE: A method to improve a surface layer of a poor ground is provided to reduce a term of works and cost. CONSTITUTION: An improving method comprises four steps. In the first step, vertical or horizontal drain materials(1) are installed in a surface layer of a poor ground at regular intervals. In the second step, the drain materials are connected with drain pipes(22) connected with an outside pump(21). In the third step, vinyl sheets(2) cover the surface of the poor ground to contain surface water(3). In the fourth step, underground water is collected in the drain material while the pump supplies intake vacuum-pressure to the drain material. The underground water is exhausted to the outside through the drain pipe and pump.