Soakaway pit dewatering device and soakaway pit construction method

Abstract

The invention relates to a soakaway pit dewatering device and a soakaway pit construction method. The soakaway pit dewatering device comprises a pile casing with a top opening, a water pumping pipe extending to the bottom of the pile casing is arranged in the pile casing, a water inlet end of the water pumping pipe is connected with a water pump, the water outlet end extends out of the pile casing, a plurality of water inlet holes are uniformly formed in the side wall and the bottom of the pile casing, the water inlet holes of the side wall of the pile casing extend to the middle of the pile casing from the bottom of the pile casing, a steel plate water stop ring is arranged on an outer ring of the top of the pile casing, a scaleplate which moves up and down along the inner wall of the pile casing is arranged on the inner wall of the pile casing, and a buoy is arranged at the bottom of the scaleplate; and the construction method comprises the following steps of pile casing installing,water pumping, graded sand and stone pouring, foundation concrete cushion layer, waterproof coiled material laying, fine stone concrete protective layer pouring and the like. According to the soakawaypit dewatering device and the soakaway pit construction method, in a foundation construction process, construction and dewatering can be carried out at the same time, the dewatering is stopped whilethe foundation concrete pouring is finished, and it is effectively ensured that the water level of a foundation pit continues to being below a cushion layer before the raft concrete construction is carried out.

Description

Technical field [0001] The invention relates to the field of water seepage pit construction, in particular to a water seepage pit dewatering device and a water seepage pit construction method. Background technique [0002] The drainage of the seepage pit is a thing that often needs to be dealt with in construction work. Generally, the drainage of the seepage pit is directly pumped by water. However, when the water volume of the seepage pit is large, the cushion and waterproof layer cannot be sealed in time, which affects the foundation construction or stops prematurely Drainage, a large amount of water accumulates on the construction surface, and the water level rises after the waterproof layer is closed, which damages the waterproof layer and causes subsequent repairs. Summary of the invention [0003] In order to solve the above problems, the purpose of the present invention is to provide a water seepage pit dewatering device and a water seepage pit construction method. By setti...

AI Technical Summary

Problems solved by technology

[0002] Drainage of seepage pits is something that often needs to be dealt with in construction operations. Generally, the drainage of seepage pits is directly pumped with water pumps. However, when the water volume of the seepage pit is large, the cushion and waterproof layer cannot be closed in time, which will affect the foundation construction or stop prematurely. Drainage, a large amount of water accumulates on the construction surface, and the water level rises after the waterproof layer is closed, destroying the waterproof layer and causing a large number of follow-up repairs

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