VERTICAL TYPE BASEMENT DRAINAGE SYSTEM

摘要

A vertical drain system is provided to regulate upward water pressure in advance and to prevent ground subsidence and a counter current of underground water by restraining the discharge of excessive underground water by a decompression pipe. The vertical drain system for regulating upward water pressure by drainage basins contains a main drainpipe(10) connected to a collecting well(1) formed on one side of a finished excavation surface for forming the bottom of the underground floor of a building to discharge underground water to the collecting well, a trench(20) located on the base of the lower foundation of a building and provided with a perforated pipe and gravel to infiltrate underground water to the inside easily, and a decompression pipe(40) connected with the main drainpipe by a socket of the main drainpipe before placing lean concrete and bottom concrete and connected with a trench drainpipe by a socket to collect the underground water of the trench drainpipe placed on each drainage basin and to flow out to the main drainpipe.