In recent years, due to the high -end residential real estate and the increase in private car ownership, the construction of one or more underground parking garages in underground has almost become a hot spot for each real estate to compete. The drainage design of the underground garage has also become an important issue. In the drainage design of large -scale multi -layer underground garage, high -slope and waterproof ditch canal, built -in floor drain and water collection well, then use the corresponding power submersible pump, external defense, "royal" water outside the garage. The drainage design of the underground garage mainly includes the size design of the water collection well position and the choice of submarine dirt pump.

1. Underground garage "waterlogging hazards"

Because the ground elevation of the underground parking garage is generally lower than the outdoor floor level, its drainage cannot be discharged into the municipal drainage pipeline network, especially the heavy rain season. If the drainage design is improper, it often causes rainwater to accumulate, affecting the safety and use of the garage. "Waterlogging -Garage Change Reservoir", "1.6 million newly purchased Audi A8 flooded", "Owners were flooded with car and property disputes" ... A large number of such reports are seen in the media. In this regard, the drainage design of the underground garage must attract high attention.

2. Related specifications for underground garage drainage design

Article 4.7.2 of the "Specification of Water Drainage Design" stipulates that "the sewage set and sewage pump should be set up to the outdoor inspection well.

Article 6.3.1 of the "Design Specifications for People's Air Defense Dungeon" stipulates that "the dirty water in the air defense basement should be discharged with mechanical excretion."

Article 6.5.1 of the "Automatic Water Spitfire Design Specification" stipulates that "the end -end water test device and water test valve shall be convenient to operate, and there should be drainage facilities with sufficient drainage capacity."

Article 9.2.4 of the "Design Regulations on the Fire Differential System of Civil Building" stipulates that "the drainage facilities should be set up at the bottom of the elevator, the capacity of the drainage well shall not be less than 2m3, and the drainage volume of the drainage pump shall not be less than 10L/s."

The "Design Guide to Design of Underground Gallery and Non -Motivated Garage" issued by the Group's Chief Office also provides relevant provisions on the "Water Well and Drainage Ditch".