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A maintenance method for i-type slab ballastless track

A technology of slab ballastless track and ballastless track, applied in the direction of track, road, ballast layer, etc., can solve the problems of easy popping out of the filling layer, inability to bond the filling layer, bonding of the track plate, etc., and shorten the maintenance time. , The sealing method is fast and effective, and the effect of ensuring the slidability

Active Publication Date: 2015-08-26
METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the special structure of I-type slab ballastless track, the above maintenance method has the problem that the new filling layer cannot be bonded to the original cement asphalt mortar layer, nor can it be bonded to the track slab. Sex, the defect that the new filling layer is easy to pop out

Method used

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  • A maintenance method for i-type slab ballastless track
  • A maintenance method for i-type slab ballastless track
  • A maintenance method for i-type slab ballastless track

Examples

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Embodiment 1

[0039] see figure 1 , A three-dimensional view of the I-type slab ballastless track. The two tracks 1 are placed on the upper surface of the track plate 2, and each track is respectively provided with a fastener 11 for fixing the track 1 on the track plate 2, and the fastener 11 is placed between the track 1 and the track plate 2. The two fasteners 11 of the two tracks are symmetrical with respect to the center of the tracks. A cement asphalt mortar layer 3 is filled between the track slab 2 and the concrete base 4 . A convex block 6 is provided between every two adjacent track plates 2 , and the convex block 6 is used to limit the longitudinal and lateral movement of the track plates 2 .

[0040] The on-site maintenance method of I-type slab ballastless track is as follows:

[0041] 1) Install the track fine adjuster

[0042] 1.1 Remove the side channel steel protection of the track slab;

[0043] 1.2 Install the track fine adjuster;

[0044] 1.3 Loosen the fasteners 11...

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Abstract

The invention provides a maintenance method of an I-type plate-type ballastless track. The method comprises that step 1: an organic mortar plate is arranged between a track plate and a concrete bituminous mortar layer, an outer periphery of the organic mortar plate which is arranged between the track plate and the concrete bituminous mortar layer is sealed through a sealing strip, and a gap is formed between the sealing strip and the organic mortar plate; step 2: organic mortar is filled in the sealing strip which is arranged between the track plate and the concrete bituminous mortar layer; step 3: after the organic mortar is solidified, the sealing strip is dismantled, and the track plate is fastened. By the adoption of the maintenance method, the height of the track plate is increased through the organic mortar plate to enable the adjusting capability of fasteners on the track plate to be recovered, so that the problem of track irregularity caused by differential settlement of a roadbed is effectively solved.

Description

technical field [0001] The invention relates to a maintenance method for an I-type slab ballastless track, which belongs to the maintenance method for a ballastless track. Background technique [0002] The slab ballastless track is a new type of track structure, and it is the track during the operation of high-speed trains. Slab ballastless track includes Type I, Type II and Type III. [0003] Among them, the I-type slab ballastless track is composed of subgrade or bridge tunnel, concrete base, cement asphalt mortar layer, track slab, steel rail and convex block between adjacent track slabs from bottom to top. Among them, the convex block is arranged on the concrete base, and the cylindrical concrete boss poured between each unit plate is mainly to limit the position of each unit plate. The convex resin is filled between the track plate and the convex stop for positioning and vibration reduction. [0004] However, in the actual railway operation, the slab ballastless trac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B1/00
Inventor 吴绍利王鑫吴智强毛昆朋陆方斌李艳伟
Owner METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI
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