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 a ground (10) bores (11) through the yugonggwan 12, based on a concrete 20 to be inserted into and connected to the yugonggwan, the open top inner pipe formed in the (31 ), surrounding the outside of the inner tube is connected to full of ground water through the open portion of the inner tube to the outer tube 32, and the outer tube to the body through the inner wall of the drain pipe (33 for discharging the ground water to the outside ) it is achieved by including the outer tube is characterized in that formed in the pillar inner of underground structures. In addition, the subject innovation provides for underground drainage system comprising a plurality of such ground water drainage structure.