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A construction method for opening a door opening in the underground wall of a subway tunnel in operation

A construction method and underground wall technology, applied in tunnels, earthwork drilling, mining equipment, etc., can solve problems such as incoherence in underground space

Active Publication Date: 2019-02-12
SHANGHAI CONSTR NO 5 GRP CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to provide a construction method for opening the underground wall of subway tunnels in operation, so as to solve the problem of incoherent underground space when new building structures are built around the underground walls of existing subway tunnels in operation

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  • A construction method for opening a door opening in the underground wall of a subway tunnel in operation
  • A construction method for opening a door opening in the underground wall of a subway tunnel in operation
  • A construction method for opening a door opening in the underground wall of a subway tunnel in operation

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Embodiment Construction

[0026] The construction method for opening the underground wall of the subway tunnel in operation of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0027] In this embodiment, the new building structure foundation pits on both sides of the underground wall of the subway tunnel in operation have been constructed. According to engineering needs, in order to make the new building structures communicate with each other, door openings need to be opened on the underground wall of the subway tunnel in operation. .

[0028] combine Figure 1 to Figure 6 Describe in detail t...

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Abstract

The invention discloses a construction method for forming a door opening in an underground wall of a subway tunnel in operation, and belongs to the technical field of underground space development. The method comprises the following steps that: firstly, accumulated water in a subway tunnel box in a construction region is totally pumped into a basement water collecting well; then, a vertical steel upright post support assembly is arranged on the underground wall; next, wall bodies of the underground wall positioned at the two sides of the steel upright post support assembly are partially chiseled away, and two first hole openings are formed; then, structure posts are cast on the edges of the first hole openings, and steel bars of the structure posts are fixedly connected with main reinforcements of the underground wall; next, the wall body of the underground wall positioned in the steel post support assembly is chiseled away, and a second hole opening is formed; finally, structure beams are cast on the edges of the second hole opening; steel bars of the structure beams are fixedly connected with the main reinforcements of the underground wall; the structure beams and the structure posts form a rectangular framework structure; and meanwhile, the steel upright post support assembly is dismounted. The construction method has the advantages that the normal operation of a subway above a construction region in the construction process can be ensured, and the problem of communication of new structures on the periphery of the underground wall of the subway tunnel in operation is solved.

Description

technical field [0001] The invention belongs to the technical field of underground space development, and in particular relates to a construction method for opening an underground wall of a subway tunnel in operation. Background technique [0002] With the acceleration of economic growth and urbanization process, as well as the increasingly tight land resources, the demand for underground space construction in cities is increasing. When constructing a new building structure around the subway box body in operation, in order to make the new building structures communicate with each other, it is often necessary to dig a doorway in the underground wall of the subway box body in operation. However, when a large doorway is opened on the underground wall of the subway tunnel in operation, how to ensure the normal operation of the subway above it is not yet a very reliable technology. Therefore, there is an urgent need to provide a reliable construction technology for opening the u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/00E21D9/14
Inventor 周玮倪悠悠徐红海徐俊传
Owner SHANGHAI CONSTR NO 5 GRP CO LTD
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