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Construction method for breaking and removing monolithic track bed in subway operation line tunnel

A construction method and technology in the tunnel, applied in the direction of roads, tracks, laying tracks, etc., to ensure the effect of the construction process

Active Publication Date: 2015-05-20
CHINA TIESIJU CIVIL ENG GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a construction method for removing the integral ballast bed in the tunnel of the subway operation line, which solves the problem of efficient, fast, safe and low-noise removal of the existing integral ballast bed and transitional opening of the temporary line to restore the operation state, ensuring that the operation is not affected. influences

Method used

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  • Construction method for breaking and removing monolithic track bed in subway operation line tunnel

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Embodiment Construction

[0016] Refer to the attached picture, the construction method of removing the integral ballast bed in the tunnel of the railway operation line, and block the key points of construction in the tunnel of the subway operation line. The specific construction steps are as follows:

[0017] 1) Concrete demolition in the first stage: Use a high-frequency, low-noise wall saw to cut the concrete of the gutters on both sides longitudinally along the ballast bed on the outside of the sleepers, divide them into small pieces with a hand-held saw, chisel them out with electric picks and hydraulic picks, install The bag is transported outside, and the cutting depth is determined by using a special 4.3m long aluminum alloy ruler. According to the tunnel radius and tunnel convergence value, the vertical distance from the cutting surface to the ruler and the horizontal distance from the tunnel center are collected on site to determine the cutting depth;

[0018] 2) Remove the existing seamless l...

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Abstract

The invention discloses a construction method for breaking and removing a monolithic track bed in a subway operation line tunnel. The construction method comprises the following steps that 1, first-stage concrete breaking and removing is conducted; 2, second-stage concrete breaking and removing is conducted, temporary steel sleeper transition line is installed, passage is recovered; 3, third-stage concrete breaking and removing is conducted. According to the construction method, a laid track bed is cut through low-noise rope saws and wall saws, cut laid slabs are lifted and conveyed through researched cantilever cranes in a subway tunnel, and then the laid monolithic track bed is changed. By the adoption of the construction method, noise is low, the operation line does not stop during construction, safety and reliability are achieved, and the requirements for urban civil construction, operation line transportation, operation line safety and construction efficiency are met.

Description

technical field [0001] The invention relates to the construction field of removing integral ballast beds, in particular to a construction method for removing integral ballast beds in subway operating line tunnels. Background technique [0002] In the bustling area of ​​the urban area, close to residential areas and commercial areas, in order to reduce the interference of trains in the process of driving, it is necessary to remove the overall trackbed in the existing tunnel. This is the first time in China and abroad. learn from. For construction under non-stop conditions, there are targeted selections of equipment and methods in the selection of cutting machinery and equipment, research and development of hoisting equipment, and transitional measures for temporary operating lines to ensure environmental protection and safe completion of demolition construction. Contents of the invention [0003] The purpose of the present invention is to provide a construction method for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B29/00
CPCE01B37/00
Inventor 贾炳义殷业锁周登辉段启楠王道成董养斌沈韫朱炎新
Owner CHINA TIESIJU CIVIL ENG GRP CO LTD
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