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Pipe gallery protection prestressed beam and construction method

A technology of prestressed beams and construction methods, applied in protection devices, artificial islands, water conservancy projects, etc., can solve water cuts, power cuts, gas cuts, impacts on urban residents' work and life, total project duration, cost and resource increase, etc. question

Active Publication Date: 2020-02-28
CHINA RAILWAY TUNNEL GROUP CO LTD
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  • Abstract
  • Description
  • Claims
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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

Method used

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  • Pipe gallery protection prestressed beam and construction method
  • Pipe gallery protection prestressed beam and construction method
  • Pipe gallery protection prestressed beam and construction method

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Embodiment Construction

[0087] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0088] The subway station of the western section of the Israeli Red Line is located under the main road of Tel Aviv, where there is a large main power supply pipe gallery with a diameter of 3.2 meters obliquely intersecting with the foundation pit. Due to the strict requirements of Israel's national conditions, culture, and local municipal engineering, considering factors such as construction period and cost, it is basically unfeasible to relocate the pipeline beyond the scope of the foundation pit. The in-situ suspension protection scheme is adopted. It is a very important technical problem to effectively control the deformation, cracks and suspension safety of the pipe gallery during the excavation process.

[0089] Ther...

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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...

Claims

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Application Information

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IPC IPC(8): E02D29/045E02D31/00E02D5/46E02D5/38
CPCE02D5/38E02D5/46E02D29/10E02D31/00
Inventor 孙庆田熊阳阳杨壮志张杰熊朝东古宗华王玉卿
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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