VERTICAL TYPE BASEMENT DRAINAGE SYSTEM

摘要

A vertical discharge system capable of controlling upward water pressure of an area is provided to prevent the ground from subsiding by limiting the discharge of the excessive ground water before the predetermined water pressure by the decompression pipe and prevent the excessive water from being guided by removing the siphon phenomenon. A vertical discharge system capable of controlling upward water pressure of an area is composed of a drain board(20) horizontally and vertically placed at the upper side of an excavated finishing surface to flow the ground water; a main discharge path for discharging the water flowed at the drain board; and a decompression pipe(40) where an upward extension pipe is connected with the drain board to lift up and down the discharge path by the upward extension pipe. The decompression pipe is connected to the main discharge path to discharge the ground water through the main discharge path. The main discharge path is a main discharge pipe(10).