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Construction method for union construction of station vent shaft and underground-cut section

A construction method and air duct technology, which is applied in the construction field of joint construction of station air ducts and underground excavation sections, can solve problems such as large construction area, construction site limitations, and application limitations of open excavation methods, and achieve the goal of saving construction time Effect

Inactive Publication Date: 2017-07-14
CHINA RAILWAY 15TH CONSTR BUREAU GRP +1
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Problems solved by technology

However, due to the large construction area of ​​the open-cut method, the surrounding commercial and residential buildings are dense, the traffic is heavy, and the constraints of dense underground pipelines and underground structures make the application of the open-cut method subject to certain restrictions.
[0003] Subway construction generally includes the construction of the main body of the station and the construction of the ai

Method used

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  • Construction method for union construction of station vent shaft and underground-cut section
  • Construction method for union construction of station vent shaft and underground-cut section
  • Construction method for union construction of station vent shaft and underground-cut section

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0033] see figure 1 As shown, a construction method for joint construction of station air duct and underground excavation section includes the following steps:

[0034] Step 1, constructing the shaft 1 of the fresh air shaft;

[0035] Step 2, constructing the connecting section structure 2 between the shaft and the air duct;

[0036] Step 3, constructing the station air duct structure 3, which is located above the main line of the station section;

[0037] Step 4, construct the second lining structure 4 of the fresh air shaft, and complete the air duct air defense section structure 41 after the second lining structure 4 of the fresh air shaft is completed;

[0038] Step 5, construction exhaust shaft shaft 5;

[0039] Step 6, constructing the structure 6 of the connecting section between the exhaust shaft and the air duct.

[0040] Among them, see figur...

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Abstract

The invention discloses a construction method for the combined construction of a station air duct and an underground excavation section, which at least includes the following steps: Step 1, constructing a shaft of a new air shaft; Step 2, constructing the structure of the connecting section between the shaft and the air duct; Step 3, constructing the station Air duct structure, the air duct structure is located above the main line of the station section; step 4, construct the second lining structure of the fresh air shaft, and complete the structure of the air duct civil air defense section after the completion of the second lining structure of the fresh air shaft; step five, construct the exhaust shaft shaft; step Sixth, construct the structure of the connecting section between the exhaust shaft and the air duct. The invention overcomes the limitation of the construction site, reduces the construction risk and saves the construction period.

Description

technical field [0001] The invention relates to the field of tunnel excavation, in particular to a construction method for combined construction of a station air duct and an underground excavation section. Background technique [0002] With the rapid and sustainable development of my country's urban economy, the urban road traffic conditions are becoming increasingly tense, and the underground transportation station transportation has gradually become the main traffic artery of the large-capacity rapid public transportation system. At present, for underground stations, open-cut method or under-cut method is usually adopted. However, due to the large construction area of ​​the open-cut method, the surrounding commercial and residential buildings are dense, the traffic is heavy, and the constraints of dense underground pipelines and underground structures make the application of the open-cut method subject to certain restrictions. [0003] Subway construction generally includ...

Claims

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Application Information

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IPC IPC(8): E21D9/00E21D9/14E21F1/00
CPCE21D9/00E21D9/14E21F1/003
Inventor 李招孙峰伟吴鸿胜宋延涛马辉杰耿利军李想
Owner CHINA RAILWAY 15TH CONSTR BUREAU GRP
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