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Construction method of light railway track

A technology of railway track and construction method, which is applied in the direction of track, track laying, track maintenance, etc. It can solve problems such as poor construction quality and loose prestressed steel beams, so as to improve service life, improve overall construction efficiency, and tensile performance high effect

Active Publication Date: 2021-07-09
CHINA RAILWAY BRIDGE SCI RES INST LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a construction method for a light railway track to solve the defects of loose prestressed steel beams and poor construction quality in the track slab in the related art

Method used

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  • Construction method of light railway track
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Embodiment Construction

[0029] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0030] The embodiment of the present application provides a light railway track slab structure. The method is easy to implement, reduces the requirements for equipment for lifting the track slab structure, improves the overall construction efficiency, reduces the adverse effects of air bubbles in the mortar on the railway track, and effe...

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Abstract

The invention relates to a construction method of a light railway track, which relates to the technical field of railway track construction, and comprises the following steps: prefabricating a light railway track plate structure which comprises two supporting longitudinal ribs arranged at an interval, a steel panel transversely arranged on the two supporting longitudinal ribs and an ultra-high performance concrete layer laid on the steel panel, the supporting longitudinal ribs are arranged in the direction of a railway track, circulation holes are formed in the supporting longitudinal ribs, the ultra-high-performance concrete layer is connected with the steel panel through connecting assemblies fixedly arranged on the steel panel, and pouring holes are formed in the ultra-high-performance concrete layer. The track plate structure is lifted to a base of the railway track, and the steel formworks are installed on the peripheral side of the track plate structure; and concrete mortar is poured from the pouring holes and passes through the circulating holes, so that a concrete mortar layer is formed. The method is easy to implement, the requirement for equipment for hoisting the track plate structure is lowered, the overall construction efficiency is improved, the adverse effect of bubbles in mortar on the railway track is reduced, and the service life of the railway track is effectively prolonged.

Description

technical field [0001] The present application relates to the technical field of railway track construction, in particular to a construction method for light railway tracks. Background technique [0002] In response to the call for the development of high-speed railways, the industry adopts ballastless track to replace the traditional "rail + sleeper + ballast" structure, among which, ballastless track mostly adopts the structure of "steel rail + track slab + closed concrete + channel concrete base" . [0003] However, in this type of ballastless track, the track slab is a prefabricated concrete slab, and its mechanical performance and durability cannot directly meet the requirements, so it is necessary to be equipped with prestressed steel beams. The combination of plates and prestressed steel beams also has the disadvantages of being heavy and easy to crack. And when the track slab is used for a long time, the problem of prestressed steel tendon relaxation may also occur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B29/00
CPCE01B29/00E01B29/005
Inventor 彭旭民郭福宽肖昌量周尚猛郝聪龙崔冰王朝王岩
Owner CHINA RAILWAY BRIDGE SCI RES INST LTD
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