Construction method for lower section of underground tunnel

A construction method, subway technology, applied in tunnels, earthwork drilling, mining equipment, etc., to achieve the effect of ensuring safety and preventing settlement deformation

Active Publication Date: 2010-06-09
上海天演建筑物移位工程股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a construction method for the underpass section of the subw

Method used

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  • Construction method for lower section of underground tunnel
  • Construction method for lower section of underground tunnel
  • Construction method for lower section of underground tunnel

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Embodiment Construction

[0035] In order to better illustrate the construction method of the underpass section of the subway tunnel of the present invention, the underpass section project of a certain subway tunnel is taken as an example to elaborate below:

[0036] During the construction of the underpass section of the subway tunnel, with the excavation of the underpass section structure, the subway tunnel structure and lines at the top may be subsidence and deformed, thereby affecting the safety of the structure and lines; For line safety, corresponding measures must be formulated at all stages of the construction of the underpass, that is, when the settlement deformation of the upper subway tunnel structure occurs, measures can be taken in time to eliminate these settlement deformations.

[0037] For this reason, the hydraulic synchronous control jacking technology is adopted, and at each stage of the construction of the underpass, according to the corresponding relationship between the upper subwa...

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Abstract

The invention discloses a construction method for the lower section of an underground tunnel. In the construction method, a hydraulic jack is arranged below the underground tunnel in the construction continuous stage and the underground tunnel structure is jacked according to the settlement of the underground tunnel structure so as to prevent the settlement deformation of the underground tunnel structure, ensure that the excavating construction of the lower section of the underground tunnel is completed under the condition of continuous running of underground transport and ensure the safety of the underground transport and the construction of the lower section.

Description

technical field [0001] The invention belongs to the field of tunnel construction, in particular to a construction method for the downlink section of a subway tunnel in the field of urban subway tunnel construction. Background technique [0002] When the subway tunnel is under construction, with the excavation of the structure of the underpass, the subway tunnel structure and lines at the top may be subsidence and deformed. In order to ensure the safety of the subway operation and the construction of the underpass, it is often required that the construction of the underpass should be carried out when the subway stops running. Stopping the operation of the subway will have a great impact on the public transportation in the city. Therefore, it is extremely unrealistic to require the stop of the subway to meet the needs of the construction of the underpass. However, the construction methods of the underpass section in the prior art are all carried out under the condition that t...

Claims

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Application Information

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IPC IPC(8): E21D9/00
Inventor 蓝戊己林其荃朱启华杨世杰杨吾松李文亮
Owner 上海天演建筑物移位工程股份有限公司
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