METHOD OF SUCTION DRAIN FOR WATER DRAINAGE IN SOFT GROUND

摘要

A suction drain method for draining pore water in the soft ground is provided to quickly guide pore water to the surface of the ground by effectively sealing a drain hose and a plastic drain board with a airtight cap. A suction drain method for draining pore water in the soft ground comprises a step of laying a plastic drain board(10) to predetermined depth under a soft ground(100) with a drain placing machine; a step of connecting plural water collecting pipes(30) at the upper part of a drain hose(60) projected out of the ground and a header pipe(40) vertically connected to the water collecting pipe; a step of connecting a vacuum suction pump(50) to an end of the header pipe; a step of promoting settlement by draining pore water in the ground via the plastic drain board with negative pressure of the vacuum suction pump; a step of dismantling the vacuum suction pump, the water collecting pipe, and the header pipe.