| 摘要 |
An underground water drainage structure, a drainage method and a valve apparatus for an underground water drainage structure are provided to discharge underground water with a simple structure if necessary, to need a small space for installation, to simplify installation and to shorten a period of installation. An underground water drainage structures(110) for minimizing the risk factors of a building by the buoyancy of underground water includes a collecting well(128), an underground water inflow device located on the lower part of a foundation of a building, an underground water guide device(136) having an outlet and providing an underground water passage between the underground inflow device and the collecting well, and a valve device installed adjacent to the outlet of the underground water guide deice and opened if the underground water pressure is above the standard water pressure. |
