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High-speed railway ballastless track line rapid repairing method

A ballastless track and line technology, which is applied to roads, tracks, laying tracks, etc., can solve the problems of high-speed rail ballastless track lines without a complete set, effective and fast system repair methods, etc., achieve good repair and reinforcement effects, solve unevenness, Guaranteed safety effect

Active Publication Date: 2017-06-20
CHINA RAILWAY NO 3 GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that there is no complete, effective, quick and systematic repair method for existing high-speed rail ballastless track lines, the present invention provides a fast repair method for high-speed rail ballastless track lines

Method used

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  • High-speed railway ballastless track line rapid repairing method
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Embodiment Construction

[0030] The specific embodiment of the present invention will be further described in conjunction with the accompanying drawings.

[0031] For the remediation and restoration of a high-speed railway section undertaken by the applicant, the original design slope was adjusted from 6.9‰ to 6.86605‰, and the track bed slab and base layer with the rail bearing groove still arching more than 2mm and the height adjustment exceeding 20mm after slope adjustment were removed, and the original design slope was adjusted from 6.9‰ to 6.86605‰. Construction of ballastless track (before and after the clearing section of the ballast bed, the rail surface elevation must be adjusted to the design elevation after the track slope adjustment through fasteners). The designed ballastless track adopts CRTSⅡ type double-block sleepers, adopts WJ-8 fasteners, the base layer and the track bed slab are respectively made of C25 and C40 concrete, and two layers of steel bars are set up, and the base layer is...

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Abstract

The invention belongs to the technical field of high-speed railway ballastless track repairing and provides a high-speed railway ballastless track line rapid repairing method in order to solve the problem that at present, a complete set of effective, rapid and systematic repairing method is not available for existing high-speed railway ballastless track lines. The high-speed railway ballastless track line rapid repairing method comprises the steps of line-to-line physical isolator installation, track sawing and moving, integral concrete track bed cutting and transporting, subgrade bed surface layer graded broken stone measurement leveling, supporting layer construction, track bed slab construction, steel track welding locking, track fine adjustment, road shoulder waterproof and drainage engineering and related engineering installation; line-to-line physical isolator demolition, line-to-line sealing layer and related engineering recovery, steel track polishing derusting, line-to-line waterproof construction, and drainage side ditch and side ditch platform recovery construction. Implementation is easy, and the high-speed driving requirement is met after repairing; the repairing and reinforcement effect is good, and the situation that a problem happens again to a ballastless track is effectively prevented; and the high-speed railway ballastless track is efficiently, rapidly, completely, systematically and comprehensively repaired and maintained, so that the safety of railway operation and the long-term durability of the structure of the ballastless track are ensured.

Description

technical field [0001] The invention belongs to the technical field of high-speed rail ballastless track repair, and in particular relates to a method for quickly repairing high-speed rail ballastless track lines. Background technique [0002] my country's high-speed railway ballastless track structure is generally divided into two categories: prefabricated slab type and cast-in-place concrete type. Ballastless track mainly includes CRTS Ⅰ type slab type, CRTS Ⅱ type slab type, CRTS Ⅲ type slab type, double block type, bifurcation area slab type and sleeper embedded type Six structural forms, among which the slab-type ballastless track structure, whose main structural feature is the longitudinal continuity of the ballastless ballast bed along the line, has been popularized and applied on a large scale in China's high-speed railway projects since the first application of the Beijing-Tianjin intercity railway. The proportion is relatively large (including Beijing-Shanghai, Shang...

Claims

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Application Information

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IPC IPC(8): E01B29/00E01B29/02E01B1/00
CPCE01B1/002E01B1/008E01B29/00E01B29/005E01B29/02E01B2204/07E01B2204/09E01B2204/10
Inventor 周秋来于庆福赵三宝马义平申雪松成俊文赵卫广樊立志秦玉生孙龙华张伟赵增茂宁轲傅重阳申立刚李英杰王辉
Owner CHINA RAILWAY NO 3 GRP CO LTD
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