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Construction method and equipment for reducing settlement deformation of existing line

A construction method and existing line technology, applied in mining equipment, shaft equipment, earthwork drilling and mining, etc., can solve problems such as deformation of existing tunnels, and achieve the effect of avoiding excessive deformation

Active Publication Date: 2021-08-10
CHINA RAILWAY 16TH BUREAU GRP CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The embodiment of the present application provides a construction method and equipment for reducing the settlement and deformation of existing lines, which solves the above-mentioned problem of deformation of existing tunnels caused by construction near existing tunnels

Method used

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  • Construction method and equipment for reducing settlement deformation of existing line
  • Construction method and equipment for reducing settlement deformation of existing line
  • Construction method and equipment for reducing settlement deformation of existing line

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Embodiment Construction

[0026] Hereinafter, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described here.

[0027] figure 1 It is a schematic flowchart of a construction method for reducing settlement deformation of existing lines provided by an exemplary embodiment of the present application. like figure 1 As shown, the construction methods to reduce the settlement and deformation of existing lines include:

[0028] Step 110: Horizontally lay the interlocking pipe curtain on the top of the construction area below the existing line.

[0029] When the construction is under the existing line, in order to avoid the settlement of the existing line caused by the cons...

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Abstract

The invention provides a construction method and equipment for reducing settlement deformation of an existing line. An occlusion pipe curtain is horizontally formed at the top of a construction area under the existing line, and in addition, grouting reinforcement is performed between the occlusion pipe curtain and the top of the construction area; and then, excavation operation is performed on the construction area, and compensation grouting is performed on the inner wall of the construction area after excavation operation, so as to avoid the influence of overlarge deformation caused by tunnel excavation on the existing line.

Description

technical field [0001] The application relates to the technical field of tunnel construction, in particular to a construction method and equipment for reducing settlement and deformation of existing lines. Background technique [0002] Due to the construction of new station pilot tunnels, transverse pilot tunnels, excavated piles, and buckle arches, multiple disturbances will cause excavation and unloading effects on the soil around the existing section tunnels, causing deformation of the existing section tunnels, which may affect the existing tunnels. The normal operation of the section tunnel even led to collapse. Reducing the impact of new station tunnel excavation on existing section tunnels and ensuring the operation safety of existing section tunnels is an urgent problem to be solved for new stations. [0003] The existing method is to control the settlement and deformation of the existing line through deep hole grouting technology, but the control of grouting paramet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10
CPCE21D11/10E21D11/105E21D11/107Y02E10/20
Inventor 曹德更刘卫强徐福田王妍王纪威李振华刘伟常泉柳艺
Owner CHINA RAILWAY 16TH BUREAU GRP CO LTD
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