Construction method for external hanging of accessory structures of subway station

A technology of ancillary structures and construction methods, applied in underground chambers, earth-moving drilling, well drilling, etc., can solve problems such as affecting the development of the station, huge engineering investment, and large surface demolition, and reduce the risk of entering the main body of the station. The effect of saving project investment and reducing the demolition area

Active Publication Date: 2018-08-03
BEIJING MUNICIPAL ROAD & BRIDGE
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  • Application Information

AI Technical Summary

Problems solved by technology

Multiple horse head gates are opened on the main structure of the subway station, which will affect the overall force of the main structure of the station, increase the amount of work, increase the difficulty of the project and increase the construction risk
[0007] 2) Due to the scattered layout

Method used

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  • Construction method for external hanging of accessory structures of subway station
  • Construction method for external hanging of accessory structures of subway station
  • Construction method for external hanging of accessory structures of subway station

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Embodiment Construction

[0040] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] In the present invention, the wind pavilion group is moved out of the main tunnel, and the tunnel openings in the end section are led out to the ground in a centralized manner, and the auxiliary structures are hung outside in a centralized arrangement, the number of openings in the main structure is reduced, and the wind pavilion group and the entrance and exit are combined with the construction site for unified arrangement. The complex and effective character-shaped hole entry method is used in the large-section cross passage and the main station conversion.

[0042] Such as figure 2 Shown:

[0043] 1) Reduce the openings of the main tunnel of the station, reduce engineering risks and reduce the amount of work. The auxiliary structures of the station are arranged in a centralized manner, and the op...

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Abstract

The invention discloses a construction method for external hanging of accessory structures of a subway station. The construction method comprises the following steps that a ventilation pavilion groupis moved out of a main tunnel, ground is centrally led out from a tunnel opening of an end section, the accessory structures are hung externally and arranged centrally, the number of openings of a main structure, and the ventilation pavilion group is combined with an entrance and exit, and construction sites are arranged uniformly. A complex and effective delta-shaped tunnel-entering method is used in the conversion of a large cross-section transverse passage and a main station. According to the construction method for the external hanging of the accessory structures of the subway station, aninnovative construction technology of delta-shaped cross-section tunnel-entering is used, and the risk of the large cross-section transverse passage entering the main station is reduced.

Description

technical field [0001] The invention belongs to the technical field of auxiliary structure design of subterranean excavation stations in mountainous cities, and relates to a construction method for external hanging of auxiliary structures of subway stations. Background technique [0002] Mountainous cities generally have narrow roads, traffic congestion, and dense buildings on both sides, often without suitable construction sites, such as Chongqing and Guiyang. Therefore, the underground excavation method is generally used for the construction of subway stations in the central areas of mountainous cities. However, the construction layout of the auxiliary structural facilities of the subway station on the surface is still a key issue in the construction of the underground excavation method, which is mainly reflected in the following two aspects: [0003] 1) The auxiliary structure of the subway station is built in an area restricted by the surrounding environment and terrain,...

Claims

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Application Information

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IPC IPC(8): E21D1/00E21D9/00E21D11/10E21D19/04
CPCE21D1/00E21D9/00E21D9/001E21D11/10E21D19/04
Inventor 赵迎胡敏宋战平闫彪曹智淋麻海涛王连国石效民刘向远付守洪胡朝成周鹏远霍奇
Owner BEIJING MUNICIPAL ROAD & BRIDGE
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