Cover-excavation top-down underground passage structure and construction method thereof

Abstract

The invention discloses a cover-excavation top-down underground passage structure and a construction method thereof. The cover-excavation top-down underground passage structure comprises first supportpiles, hanging walls, a top plate, first side walls and a first bottom plate, the first support piles are arranged at intervals along the outer side lines of two sides of a passage, a top beam is arranged at the tops of each group of first support piles, the two hanging walls are arranged on the left side and the right side of the top plate correspondingly, the top plate is hung at a designed position through the two hanging walls, the upper ends of the hanging walls are fixedly connected with the top beams, the two first side walls are arranged at the bottoms of the two hanging walls correspondingly, the first bottom plate is arranged between the bottoms of the two first side walls, filling layers fill the portions between the first side walls and the first support piles on the corresponding sides and between the hanging walls and the first support piles on the corresponding sides, open excavation underground passage structures are constructed on the two sides of the cover-excavationtop-down underground passage structure correspondingly, the open excavation underground passage structures comprise second support piles, second side walls and second bottom plates. According to thecover-excavation top-down underground passage structure and the construction method thereof, the technical problems of narrow operation space, long construction period and high construction cost of traditional cover-excavation construction are solved.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, in particular to a cover-dig reverse underground passage structure and a construction method thereof. Background technique [0002] The west side of the underground emergency passage of a certain project is connected with the residential building, passes through the outdoor underground space of the anti-terrorism warning building, and the east side is equipped with an entrance and exit to connect with the bus inspection site; the cover-excavation area is located in the outdoor area of ​​the anti-terrorism warning building. Since the handover date of the anti-terrorist alert building is earlier than the construction of the underground emergency passage structure, in order to ensure the smooth handover of the anti-terrorist alert building and provide operating conditions for the construction of the outdoor floor of the anti-terrorist alert building, the underground emergency passage...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cover-excavation reverse underground passage structure and its construction method to solve the technical problems of traditional cover-excavation construction with narrow working space, long construction period and high construction cost

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