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Renovating method for gaps and mud spillover between CRTSI template type ballastless track base plate and surface layer of roadbed of high-speed railway

A technology for slab-type ballastless track and high-speed railway, which is applied in the direction of track, ballast layer, road, etc., and can solve the problem of slurry damage to closed materials, water accumulation on the base plate and roadbed surface, and influence on train safety, comfort and smoothness and other problems, to achieve the effect of ensuring smoothness, precise operation and good effect

Inactive Publication Date: 2016-04-13
BEIJING RUIWEI TIEKE HIGH SPEED RAIL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will seriously affect the safety, comfort and ride comfort of trains, reduce the operating speed of trains and the capacity of railway roads, and is one of the important hidden dangers of ballastless track railway traffic safety.
[0003] In the actual maintenance of the CRTSI type ballastless track on the subgrade, the repair method for the gap between the base plate and the surface of the subgrade is to close the surface gap, but there is water between the base plate and the surface of the subgrade, and it will still occur under the vibration of the train. Slurry, and the closure material will be damaged by the slurry
Therefore, closing the surface separation gap cannot fundamentally solve the separation gap

Method used

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  • Renovating method for gaps and mud spillover between CRTSI template type ballastless track base plate and surface layer of roadbed of high-speed railway
  • Renovating method for gaps and mud spillover between CRTSI template type ballastless track base plate and surface layer of roadbed of high-speed railway
  • Renovating method for gaps and mud spillover between CRTSI template type ballastless track base plate and surface layer of roadbed of high-speed railway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 , figure 2 As shown, the high-speed railway CRTSI type frame slab ballastless track, that is, the track slab 4 is a frame slab, because the sealing material of the side seam of the base plate 1 is aged and damaged, and the gap between the base plate 1 and the surface layer of the subgrade 7 leaks slurry, the treatment method of the present invention is adopted Repair, including the following steps:

[0035] (1) Clean up the sealing materials for the side seams on both sides of the base plate 1, drill and arrange closed holes 2 at the side seams, the depth of the closed holes 2 is drilled to 2 cm of the subgrade gravel layer, the diameter of the closed holes 2 is 5 mm, and the hole spacing is 10 mm, and then Insert the grouting pipe 3 in the closed hole 2;

[0036] (2) Drill grouting holes 5 and 8 on both sides of the base plate 1 and the openings of the track plate 4 along the centerline. Drilling holes within 200mm at both ends should be properly i...

Embodiment 2

[0044] The sealing material of the side seam of the base plate of the CRTSI frame plate ballastless track of the high-speed railway is aged and damaged, and the gap between the base plate and the surface of the subgrade is leaked. The repair method of the present invention is used to repair it, including the following steps:

[0045](1) Clean up the sealing materials for the side seams on both sides of the base plate, drill and arrange closed holes at the side seams, the depth of the closed holes is drilled to 3cm in the subgrade gravel layer, the diameter of the closed holes is controlled at 15mm, and the distance between the holes is controlled at 20mm. Insert the grouting pipe into the hole;

[0046] (2) Drill grouting holes along the center line on both sides of the base plate and the openings of the track plate. The diameter of the grouting hole is controlled at 15mm, and the depth is drilled to 5cm of the gravel layer. The holes at both ends of the base plate within 200mm...

Embodiment 3

[0054] Such as image 3 with Figure 4 As shown, the high-speed railway CRTSI type solid slab ballastless track, that is, the track slab 19 is a solid slab. Due to the aging and damage of the sealing material of the side seam of the base plate 11, the gap between the base plate 11 and the surface layer of the roadbed 18 leaks slurry, and the treatment method of the present invention is adopted. Repair, including the following steps:

[0055] (1) Clean up the sealing materials for the side seams on both sides of the base plate 11, drill and arrange closed holes 12 at the side seams, the depth of the closed holes 12 is drilled to 2.5cm of the subgrade gravel layer, the diameter of the closed holes 12 is 10mm, and the hole spacing is 15mm, Then insert the grouting pipe 13 in the closed hole 12;

[0056] (2) Two rows of grouting holes 14 and 15 are respectively drilled on both sides of the base plate 11, a row of vertical drilling holes on the outside, and a row of drilling hole...

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Abstract

The invention belongs to the technical field of repair of a ballastless track of a high-speed railway, and aims to provide a renovating method for gaps and mud spillover between a CRTSI template type ballastless track base plate and the surface layer of a roadbed of a high-speed railway, which can fundamentally solve the problems of gaps and mud spillover and guarantee the operating stability and the operating safety of the ballastless track. Grouting holes are drilled in the base plate, grouting pipes are mounted, and high polymer materials are poured into the grouting pipes, so that accumulated water between the base plate and the surface layer of the roadbed is absorbed, besides, crevices between the base plate and the surface layer of the roadbed are tightly stuffed, and the effects are good; enclosing holes are formed in side seams on two sides of the base plate, grouting pipes are mounted, enclosing materials are poured into the enclosing holes through the grouting pipes, and a tight water-blocking heavy curtain is formed on a crushed stone layer of the roadbed, so that water in the roadbed is prevented from penetrating into a part between the base plate and the surface layer of the roadbed, and phenomena of the gaps and mud spillover are prevented from occurring once again. The operation is precise, practical and economic, repair of gap damage between the base plate and the surface layer of the roadbed can be completed through limited skylight time, and the ride comfort of a line is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of ballastless track repair of high-speed railways, and in particular relates to a method for treating slurry leakage between a base plate of a CRTSI-type ballastless track and a surface layer of a roadbed. Background technique [0002] Ballastless track is a form of low-maintenance track structure for high-speed railways. It uses reinforced concrete base plates instead of ballasted track beds to distribute and transmit wheel-rail forces to the subgrade foundation. Ballastless track has the characteristics of good track stability, continuity and smoothness, good structural durability, less maintenance workload, and long service life. Therefore, most of the high-speed railways we are building at this stage are based on ballastless track. The ballastless track is generally closed with sealing material to prevent water from penetrating into the track structure. When water infiltrates between the track base pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B1/00E01B2/00
CPCE01B1/002E01B2/00
Inventor 董明冯青松
Owner BEIJING RUIWEI TIEKE HIGH SPEED RAIL ENG CO LTD
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