Construction method of garage sinking square rainwater system

Abstract

The invention discloses a construction method of a garage sinking square rainwater system. The construction method comprises the following steps that 1, data information is collected, specifically, the sinking square drainage range and the basement garage condition within the range are determined, the layout of a built underground garage is analyzed, and the area with the low garage utilization rate is determined; 2, the water amount is calculated, specifically, 1) the water catchment area of a sinking square and the required drainage amount within the design recurrence period are calculated, and accordingly the number and the water storage volume of water storage and collection pools are determined; and 3, a plane scheme is designed. The construction method is ingenious in design, the water storage and collection pools, an equipment room, a clean water pool, a submersible sewage pump and the like are included, the water storage and collection pools are separated from the space of the basement garage, the sinking square drainage scheme can be combined, the corners or the blank space of the garage is utilized, the garage sinking square rainwater system and rainwater collection and utilization are integrated, the underground garage backward flowing risk is reduced, and the problem that non-traditional water resources are not fully utilized is solved.

Description

technical field [0001] The invention relates to the technical field of drainage buildings in construction engineering, in particular to a construction method of a rainwater system for a sunken garage square. Background technique [0002] According to Article 5.3.18 of the "Building Water Supply and Drainage Design Standards" GB50015-2019 "When the ground drainage of the sunken square connected to the building cannot be drained by gravity, a rainwater collection tank and a drainage pump should be installed to lift the rainwater to the outdoor rainwater inspection well". Due to the changing global climate conditions, heavy rains or rainstorms have occurred many times in recent years, resulting in flooding of basement spaces such as basement garages, serious property losses, and even threats to personal safety. [0003] At present, major developers (Longfor, Dongyuan, etc.) have built many large-scale public construction projects. In order to improve the quality and create air-...

AI Technical Summary

Problems solved by technology

[0004] 1. The rainwater in the sunken square is introduced into the sump of the basement garage through the drainage pipe, and then lifted and discharged through the submersible sewage pump, which will lead to the accumulation of water on the garage floor once the pipeline leaks or the lifting equipment fails, and it may even become external water during heavy rain the source of the citation;

[0005] 2. Inadequate use of rainwater resources and reduction of source pollution

[0006] 3. There are too many pools in the basement, which affects the perception of the basement ground;

[0007] 4. Submersible sewage pumps are generally controlled by a fixed frequency method, regardless of the water volume, they are started according to the specified water level and flow rate, resulting in frequent operation of the pump and a large amount of power consumption;

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