A construction method for a light railway track

A technology of railway track and construction method, which is applied in the direction of track, track laying, track maintenance, etc., can solve the problems of loose prestressed steel beams, poor construction quality, etc., and achieve the goal of improving overall construction efficiency, increasing service life, and being easy to implement Effect
CN113089392BActive Publication Date: 2022-02-01CHINA RAILWAY BRIDGE SCI RES INST LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY BRIDGE SCI RES INST LTD
Publication Date
2022-02-01

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Abstract

The present application relates to a construction method of a light railway track, and relates to the technical field of railway track construction, comprising the steps of: prefabricating a light railway track slab structure, the track slab structure includes two supporting longitudinal ribs arranged at intervals, and two supporting longitudinal ribs arranged transversely on the two supporting longitudinal ribs. The upper steel panel and the ultra-high-performance concrete layer laid on the steel panel, the supporting longitudinal ribs are arranged along the direction of the railway track, the supporting longitudinal ribs are provided with circulation holes, and the ultra-high-performance concrete layer passes through the connecting components fixed on the steel panel. It is connected with the steel panel, and the super high-performance concrete layer is provided with a pouring hole; the track slab structure is lifted and placed on the base of the railway track, and the steel formwork is installed on the peripheral side of the track slab structure; the concrete mortar is poured from the pouring hole, and the Through the flow holes, a concrete mortar layer is formed. The method is easy to implement, reduces the equipment requirements 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 effectively increases the service life of the railway track.
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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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