Dewatering and drainage system of subway station open-cut interval foundation pit

A technology for drainage systems and subway stations, applied in infrastructure engineering, construction, etc., can solve the problems of poor drainage and drainage, poor filtering effect, easy blockage, etc., and achieve the effects of good drainage and drainage, easy precipitation, and easy implementation.
CN112695780AInactive Publication Date: 2021-04-23CHINA RAILWAY NO 5 ENG GRP +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY NO 5 ENG GRP
Publication Date
2021-04-23
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a dewatering and drainage system of a subway station open-cut interval foundation pit. The dewatering and drainage system comprises a plurality of dewatering wells and a plurality of water collecting pits, wherein the dewatering wells and the water collecting pits are distributed at the bottom of the foundation pit at intervals, the water collecting pits communicate through an in-pit drainage ditch net arranged on the bottom surface of the foundation pit, the in-pit drainage ditch net comprises an annular ditch distributed along the periphery of the bottom surface of the foundation pit, and a plurality of connecting ditches. and the plurality of connecting ditches communicate with the plurality of water collecting pits and the annular ditch. The system has the advantages of simple structure, easiness in implementation, good dewatering and drainage effects and the like.
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Description

technical field

[0001] The invention relates to the technical field of subway construction engineering, in particular to a drainage and drainage system for a foundation pit in an open-cut section of a subway station. Background technique

[0002] During the construction of the subway station, the foundation pit needs to be excavated before the construction of the main structure of the subway station. Before excavation of the foundation pit and during the excavation of the foundation pit, a dewatering well should be constructed first, and the groundwater in the soil layer within the excavation range should be drained in time, so as to facilitate the excavation of the earthwork and help to improve the passive area and excavation area of ​​the enclosure structure. The strength and rigidity of the excavated surface soil ensure the smooth excavation of the foundation pit and the construction of the underground structure to create an anhydrous working condition, including reducing...

Claims

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