Deep foundation pit enclosure earth-among-pile support and centralized drainage system

Abstract

The invention discloses a deep foundation pit enclosure earth-among-pile support and centralized drainage system, and relates to the technical field of buildings. According to the technical scheme, the deep foundation pit enclosure earth-among-pile support and centralized drainage system comprises a net spraying support unit, a concealed drainage unit and a centralized collection open drainage unit; the net spraying support unit comprises a plurality of vertically-arranged pile bodies, the pile bodies are vertically arranged around the periphery of the inner side of a foundation pit, the sides, facing the interior of the foundation pit, of the pile bodies are connected with a reinforcing mesh, and concrete is sprayed on the reinforcing mesh to form a concrete spraying layer; and the concealed drainage unit comprises water drainage pipes, the multiple water drainage pipes are longitudinally arranged between every two adjacent pile bodies in an array mode, the water inlet ends of the water drainage pipes face the wall of the foundation pit, and the water outlet ends of the water drainage pipes penetrate through the concrete spraying layer and extend to the inner side of the foundation pit. The system has the beneficial effects that according to the scheme, the net spraying support system and the drainage system are combined, stagnant water collection and centralized drainage in a supporting closed system are achieved, and the influence of scattered drainage on a supporting face and the foundation pit is avoided.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a soil support and centralized drainage system for deep foundation pit enclosure and protection piles. Background technique [0002] The soil between the piles of the deep foundation pit project in the underground space is supported by net spraying to form a closed system, so that the stagnant water between the upper layers of the stratum and surface runoff seepage cannot be discharged through the dewatering well, and the water body is sprayed on the net spraying of the foundation pit project. The support forms side pressure, and flows out through the net spray support through infiltration, runoff, etc., causing damage to the net spray support, and even local collapse, slide and other situations, endangering the safety of deep foundation pits. [0003] The soil between the piles of the existing open-cut deep foundation pit project is supported by net-spraying, and most of th...

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Problems solved by technology

[0004] In view of the above technical problems, the present invention provides a deep foundation pit enclosure soil support and centralized drainage drainage system, which aims to solve the problem that the upper layer Collect and concentrate clear drainage of interlayer stagnant water and surface runoff seepage, etc., which cannot be discharged through precipitation wells, to protect the net spraying support system between piles

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