Pipe gallery protection prestressed beam and its construction method

Abstract

The invention provides a pipe gallery protection prestressed beam and a construction method, and belongs to the technical field of constructional engineering. The pipe gallery protection prestressed beam and the construction method solve the problem that an existing large pipe gallery perpendicular to or obliquely crossed with a foundation pit adopts the mode that a pipeline is moved out of the foundation pit range, and consequently the trip and life of citizens are seriously affected. The pipe gallery protection prestressed beam comprises a first bridge abutment positioned on one side of a main body foundation pit, a second bridge abutment arranged on the other side of the main body foundation pit and a prestressed beam body arranged above the main body foundation pit. One end of the prestressed beam body is erected on the first bridge abutment, and the other end of the prestressed beam body is erected on the second bridge abutment. Pipe gallery holes are formed in the prestressed beam body and extend in the length direction of the prestressed beam body. The construction method of the pipe gallery protection prestressed beam which occupies small urban road surface is adopted, andthe pipe gallery protection prestressed beam has the advantages that the influence on urban traffic is small, and water supply interruption, power failure and gas supply interruption cannot be caused.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and relates to a pipe gallery protection prestressed beam and a construction method. Background technique [0002] In the construction process of municipal projects such as urban subway stations, it is often encountered that large-scale comprehensive pipe galleries are parallel or oblique to engineering foundation pits. Due to the diversity, complexity and importance of the internal pipelines of large-scale pipe corridors, if the pipe corridors are relocated and modified, it will cause water, power, and gas cut-offs in the urban area, which will affect the work and life of urban residents. have a serious impact. Especially in the case of large-scale pipe corridors vertically or obliquely intersecting the foundation pit, the scheme of relocating the pipeline outside the scope of the foundation pit needs to occupy a large area of ​​urban road surface and take a long time, resultin...

AI Technical Summary

Problems solved by technology

Due to the diversity, complexity and importance of the internal pipelines of large-scale pipe corridors, if the pipe corridors are relocated and modified, it will cause water, power, and gas cut-offs in the urban area, which will affect the work and life of urban residents. have a serious impact

Especially in the case of large-scale pipe corridors vertically or obliquely intersecting the foundation pit, the scheme of relocating the pipeline outside the scope of the foundation pit needs to occupy a large area of ​​urban road surface and take a long time, resulting in a significant increase in the total construction period, cost and resources of the project

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