Deep foundation pit drainage structure

Abstract

The invention discloses a deep foundation pit drainage structure. The deep foundation pit drainage structure comprises a concrete cushion layer. The lower surface of the concrete cushion layer is provided with geotechnical cloth. The geotechnical cloth is laid on the concrete cushion layer. Fixing screws are mounted between the geotechnical cloth and the concrete cushion layer. The lower surface of the geotechnical cloth is located on a U-shaped trench. The U-shaped trench is internally provided with a blind drain of a rectangular structure. The U-shaped trench is provided with a rectangular trench matched with the blind drain. The blind drain is internally provided with a water collection cavity. The bottom of the water collection cavity is provided with a water flow outlet. A cover plate matched with the water flow outlet is mounted at the water flow outlet. The water collection cavity is internally provided with a drainage pipe. The bottom of the drainage pipe extends into the water collection cavity. The deep foundation pit drainage structure can effectively solve the problems that the water burst phenomenon cannot be avoided and labor and time are wasted when foundation pit dewatering is conducted In the manner that slip casting is conducted in a pit or a dewatering well structure is dug for supplementation; the deep foundation pit drainage structure is good in structural performance, quick and reliable in construction and capable of effectively solving the problem of water draining of cracks of bedrock of a deep foundation pit.

Description

technical field [0001] The invention relates to a drainage structure, in particular to a deep foundation pit drainage structure. Background technique [0002] With the rapid development of the modern construction industry, there are more and more high-rise and super high-rise buildings. Due to the large load on the upper part of the high-rise and super high-rise buildings, most of them adopt compensatory foundations. Generally, multi-storey basements are set up to facilitate the stability of the buildings, but this leads to The foundation is deeply buried and the excavation of the foundation pit is deep. Especially when deep foundation pits are excavated in areas with high groundwater levels, the soil aquifer will be cut off, and groundwater will continue to seep into the foundation pit, causing quicksand, slope instability or making the foundation The carrying capacity is reduced. During the excavation of deep foundation pits, the bearing strata are generally moderately we...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the above-mentioned problems, to provide a kind of deep-sealing system that can effectively solve the problem of foundation pit dewatering for the existing pit grouting or supplementary dewatering well structure, which cannot avoid the phenomenon of water gushing, and consumes manpower and time. Foundation pit drainage structure

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