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Vibration damping and sheet type ballastless track

A technology of ballastless track and slab type, which is applied in the direction of track, road, building, etc., can solve the problems of high construction cost, difficulty in substructure renovation, slow construction speed, etc., and achieve good environmental protection, high promotion and application value, and high durability sexual effect

Inactive Publication Date: 2006-10-11
CHINA RAILWAY NO 8 ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Our country also has a track structure with less maintenance lines for trial laying, but the construction cost is high, the construction speed is slow, and it is difficult to repair the substructure once it is deformed, and it is limited to some special areas

Method used

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  • Vibration damping and sheet type ballastless track
  • Vibration damping and sheet type ballastless track
  • Vibration damping and sheet type ballastless track

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as Figure 1 to Figure 7 As shown, a vibration-absorbing plate type ballastless track, the base 7 is set on the foundation, the longitudinal centerline of the base 7 coincides with the centerline of the line, and a circular convex stopper 13 is installed on the base, and the convex stopper 13 There is a track plate 4 between them and the longitudinal centerline of the track plate coincides with the center line of the line. A CA mortar adjustment layer 6 is provided between the track plate and the base, and the CA mortar adjustment layer 6 is tightly connected with the track plate. Between the adjustment layer and the track slab and at the bottom of the track slab at the lower part of the rail, an elastic rubber backing plate 5 is also provided, and between the CA mortar adjustment layer and the track slab and at the bottom of the track slab in the middle of the line, a foamed polyethylene hollow material 11 is arranged, The middle part of the longitudinal ends of t...

Embodiment 2

[0029] Such as Figure 8 As shown, the slab ballastless track of the present invention is installed on the protective layer on the bridge; others are the same as in Embodiment 1.

Embodiment 3

[0031] Such as Figure 9 As shown, the slab ballastless track of the present invention is installed on the tunnel invert in the tunnel; others are the same as in Embodiment 1.

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PUM

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Abstract

The invention discloses a vibration-damping sheet non-slag track, which comprises a base; convex baffle cams on the base; track plate between convex baffle cams; a CA sand slurry adjusting layer between the track plate and the base to connect the track plate; a flexible rubber backing board between the CA sand slurry adjusting layer and the track plate, at the bottom of track plate, and at the lower part of steel track; stuff material filled between the CA sand slurry adjusting layer and the track plate and at the bottom of track plate that at the middle part of track; a semi-round cut matched with convex baffle cam and arranged at the middle of longitudinal two ends of track plate; resin sand slurry filled between convex baffle cam and cut; clamper for fixing steel track directly mounted on the track plate; and a flexible backing board, insulated baffle backing plate and step-less filling height-adjusting backing board. Said invention can be used in high-speed railway and road. And it has high smoothness, high endurance, and high reliability.

Description

technical field [0001] The present invention relates to the technical field of railways, in particular, relates to a rail transit that can be adapted to cities and intercity rails, and is widely applicable to high-speed railways (including dedicated passenger lines, passenger-cargo mixed lines, and freight lines), and can even meet the speed requirements. Slab ballastless track for the smooth operation of 350km / h high-speed trains. Background technique [0002] At present, my country's railways generally use ballasted tracks. The ballasted track has reached the limit of its carrying capacity under the repeated load of high-speed and heavy-duty trains for a long time, which is reflected in the increasing damage to the gravel track bed, the deterioration of track smoothness, the increase of maintenance workload, and the available maintenance time Fewer and fewer, which seriously hinders the development of railways in the direction of high speed and heavy load. [0003] Since...

Claims

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Application Information

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IPC IPC(8): E01B2/00E01B25/00
Inventor 钱振地江成肖俊恒刘振民王智勇吴海涛张雷白昆华吴利清杨先凤王江张志红龚斯昆
Owner CHINA RAILWAY NO 8 ENG GRP CO LTD
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