Plumbing for Draining Underground Water and Controlled De-watering System with Target Water Level Using the Plumbing

摘要

ground water drainage structure according to the present invention is formed in the ground piercer (10) (11) inserted into the which yugonggwan 12 , through the concrete foundation 20 is connected to the yugonggwan , inside the upper tube is open (31) , surrounding the outside of the inner wall of the inner tube filled with ground water through the open portion of the inner tube the external tube 32 , and is connected to the outer tube comprises a drain pipe 33 for discharging the ground water to discharge to the outside through the outer tube is formed on an internal pillar of the underground structure . The present invention also provides a ground water drainage system comprising a plurality of ground water drainage structure like this .