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Slidable small-resistance embedded railway structure

An embedded track and resistance technology, applied in the field of rail transit, can solve the problem that the rail cannot be stretched vertically, so as to reduce the construction workload and improve the maintenance efficiency

Inactive Publication Date: 2019-07-19
CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a slidable and low-resistance embedded track structure in view of the current situation, combined with years of research on the embedded track structure, and cleverly set up a slot-in-slot structure scheme to retain the track structure. The continuous support feature of the structure solves the problem that the steel rails of the embedded track cannot be stretched longitudinally when used in large-span continuous girder bridges, and improves the construction and maintenance efficiency of the site

Method used

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  • Slidable small-resistance embedded railway structure
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  • Slidable small-resistance embedded railway structure

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 As shown, a slidable low-resistance embedded track structure includes a rail bearing groove 1, a polymer material 3, a steel rail 4, and a track bed plate 5, and an inner groove 2 that can slide longitudinally in the groove is provided in the rail bearing groove 1. , A sliding pair is set between the inner groove 2 and the rail bearing groove 1, and the inner groove 2 is provided with a rail 4 which is locked by a polymer material 3 .

Embodiment 2

[0030] A slidable low-resistance embedded track structure, comprising a rail bearing groove 1, a polymer material 3, a steel rail 4, and a track bed plate 5, an inner groove 2 that can slide longitudinally in the groove is arranged in the rail bearing groove 1, and the inner groove A sliding pair is arranged between 2 and the rail bearing groove 1, and a steel rail 4 is arranged in the inner groove 2 and locked by a polymer material 3. The rail bearing groove 1 is made of steel or fiberglass.

[0031] Such as Figure 2-5 As shown, the rail bearing groove 1 adopts an assembled rail groove, and the assembled rail groove first fixes the bottom plate of the rail groove with bolts 9 or bonding, and then embeds the side wall of the rail groove into the bottom plate of the rail groove. Lateral anchoring structures such as ribs 10 and rivets 11 are arranged on the two outer walls of the rail bearing groove 1 . The cross section of the rail bearing groove 1 is narrow at the top and w...

Embodiment 3

[0034] Such as Figure 6 As shown, a slidable low-resistance embedded track structure includes a rail bearing groove 1, a polymer material 3, a steel rail 4, and a track bed plate 5, and an inner groove 2 that can slide longitudinally in the groove is provided in the rail bearing groove 1. , a sliding pair is set between the inner groove 2 and the rail bearing groove 1, and the steel rail 4 is arranged in the inner groove 2 and locked by the polymer material 3. The rail bearing groove 1 adopts a concrete structure, and its cross section is small at the top and large at the bottom. Eight-shaped, a gap is reserved between the inner groove 2 and the bearing rail groove 1, which is used to fill the rubber backing plate 12, and the inner groove 2 also includes a backing plate, and the polymer material 3 is divided into two parts in the inner groove 2 Two times of pouring, the first time is used to lock the rail 4, and the second time is used as the surface layer material 6 to cover...

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Abstract

The invention provides a slidable small-resistance embedded railway structure. The slidable small-resistance embedded railway structure comprises a rail bearing groove, a polymer material, a steel rail, and a track bed plate, the rail bearing groove is internally provided with an inner groove which can longitudinally slide in the rail bearing groove, a sliding pair is arranged between the inner groove and the rail bearing groove, and the steel rail is arranged in the inner groove and locked through the polymer material. The slidable small-resistance embedded railway structure has the beneficial effects that a groove-in-groove idea is adopted, a structure in the groove can be longitudinally expanded, and the slidable small-resistance embedded railway structure is suitable for large-span continuous beam bridges; the structural characteristics of continuous supporting and continuous locking of the embedded railway are retained; and during replacing of the steel rail, the structure in thegroove can be integrated in a plant and assembled and installed on site, the site construction workload is decreased, and the maintenance working efficiency is improved.

Description

technical field [0001] The invention relates to an embedded track structure, in particular to a slidable and small-resistance embedded track structure, which belongs to the technical field of rail transportation. Background technique [0002] In recent years, the model of factory prefabrication and on-site assembly has been increasingly popularized in my country's construction industry. At the same time, this model runs through urban rail transit engineering and system product development, such as prefabricated floating slab tracks and trapezoidal sleeper tracks in urban rail transit. As a new type of rail transit system integration product, the continuously supported embedded track structure has good vibration and noise reduction effects, low wheel and rail wear, long service life, good insulation performance, good ride comfort and small daily maintenance workload And other advantages, gradually attracting attention in the field of domestic urban rail transit. At present, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B21/00E01B21/02E01B19/00
CPCE01B19/003E01B21/00E01B21/02E01B2204/09E01B2204/11
Inventor 杨刚罗炯田骥郑洁刘光胜
Owner CHENGDU XINZHU ROAD & BRIDGE MASCH CO LTD
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