DEWATERING CONTRO SYSTEM FOR UNDER GROUND WATER

摘要

PURPOSE: An underground drainage control device is provided to minimize damage to a building and dangerous factors due to the buoyancy of underground water by maintaining the level of the underground water around the building at a designed stable level or below. CONSTITUTION: An underground drainage control device comprises a drainpipe(20), a main discharge unit(40), and a secondary discharge unit(50). The drainpipe is connected by a pore pipe(30) and a drain unit(22) which comprises a perforated drainpipe(23) or a drain board(21) for the inflow of underground water. The main discharge unit is connected to the drainpipe and discharges the underground water to the outside by maintaining the upper part at a designed stable level. The main discharge unit comprises a first extension pipe(41), a plurality of first vertical pipes(42), and a drainage container(43). The first extension pipe is extended toward the wall of a building. A first vertical pipe is connected to the first extension pipe, is extended to the upper side, and comprises a first outlet(44). The drainage container is installed in the wall side of a building and comprises the accepting space(45) of the first vertical pipe and an overflow guide hole(46).