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Construction method for removing integral ballast bed in subway operating line tunnel

A construction method, the technology of the integral ballast bed, applied in the direction of roads, tracks, laying tracks, etc., to achieve the effect of ensuring the construction process

Active Publication Date: 2017-05-10
CHINA TIESIJU CIVIL ENG GRP CO LTD
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  • Summary
  • 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 removing integral ballast bed in subway operating 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 in the tunnel of the subway operation line. The specific construction steps are as follows:

[0017] 1) The first stage of concrete demolition: Use a high-frequency, low-noise wall saw to cut the concrete on both sides of the ditch along the longitudinal direction of the ballast bed on the outside of the sleeper head, divide it into small pieces with a hand-held saw, chisel it with an electric pick and a hydraulic pick, install The bag is transported outside, and the cutting depth is measured with a 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 center of the tunnel are collected on site to determine the cutting depth;

[0018] 2) Remove the existing seamless line: Use an...

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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 Patents(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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