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Method for laying ballastless track long steel rail

A ballastless track and laying method technology, applied in the direction of track, track laying, track maintenance, etc., can solve the problem that the fixed-length track laying technology is difficult to meet the laying of high-speed seamless lines, etc., to meet the construction requirements and rich technology. Effect

Active Publication Date: 2012-11-14
CHINA RAILWAY NO 2 ENG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0002] The existing rail transit projects at home and abroad have gradually increased the requirements for high-speed and stable transportation facilities, especially the requirements for the laying of ballastless track rails. Since the laying process needs to be carried out in different environments, the existing fixed-length track Laying technology has been difficult to meet the requirements of laying high-speed seamless lines

Method used

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Examples

Experimental program
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Embodiment Construction

[0027] Below with the long steel rail of 500m as example, the present invention is further described by specific embodiment:

[0028] preferred embodiment

[0029] The ballastless track long rail laying method comprises the following steps:

[0030] A. At the rail welding base, weld the fixed-length rails to grow rails according to the design requirements, including the following steps:

[0031] (1) Rail matching: select the rails that have passed the inspection and acceptance of the base, and select the rails according to the line elements and the long rail plan of the seamless line, and hang the selected 100m fixed-length rails on the rollers of the conveying bracket; optional , the end face of the rail is selected according to the actual size deviation to ensure the welding quality;

[0032] (2) Grinding and derusting rail ends: Use MSB-14-L automatic derusting machine to grind the rail surface and rail ends within 0.5m to remove rust, iron sheet and other sundries to a c...

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PUM

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Abstract

A ballastless long rail laying method of the invention relates to a construction method of rail laying after welding regular length-fixed rail into a long rail. The invention aims to provide a construction method to weld the length-fixed rail into the long rail for rail laying, which comprises a technical scheme that after welding the length-fixed rail into the long rail, the long rail is transported to the construction field of rail laying and then is welded to meet the requirement of the whole rail seamless line. The method of the invention is mainly applied in ballastless rail laying of high-speed railways and passenger transportation dedicated lines.

Description

technical field [0001] The invention relates to a construction method for rail laying of a ballastless track, in particular to a construction method for laying rails after welding ordinary fixed-length rails into long rails in advance. Background technique [0002] The existing rail transit projects at home and abroad have gradually increased the requirements for high-speed and stable transportation facilities, especially the requirements for the laying of ballastless track rails. Since the laying process needs to be carried out in different environments, the existing fixed-length track Laying technology has been difficult to meet the requirements of laying high-speed seamless lines. Contents of the invention [0003] The object of the present invention is to provide a construction method for laying rails after welding common fixed-length rails into long rails in advance. [0004] The object of the present invention is achieved through the following technical proposals: t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B29/16E01B29/42B23K23/00
Inventor 史渡陈叔刘连学陈太权刘万贵刘强华陈小军
Owner CHINA RAILWAY NO 2 ENG GRP CO LTD
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