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Rail transit

A technology of rail transit and track slabs, which is applied in the field of rail transit and can solve problems such as affecting lines, heavy maintenance and repair workload, and hidden dangers of railway transportation safety

Inactive Publication Date: 2020-06-16
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The occurrence of arch disease on the track slab destroys the integrity of the overall track structure, directly affects the unevenness of the line, is related to the safety of train operation, and brings great safety hazards to railway transportation. At the same time, it also brings maintenance and repair. heavy workload

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Embodiment one, such as Figure 1 to Figure 3 ,as well as Figure 5 to Figure 7 shown;

[0056] Determine the target position, which is the position of the girder joint at the junction of the simply supported beam segment and the continuous beam segment.

[0057] Among the four track plates 4 on either side of the target position, eight fixing holes 5 are symmetrically formed on the first track plate 4a adjacent to the target position; Eight steel bar heads are used as fixing points, and chemical anchor bolts 60 are implanted into eight fixing holes 5 on the first track plate 4a.

[0058] Eight fixing holes 5 are symmetrically formed on the second track plate 4b adjacent to the first track plate 4a.

[0059] Six fixing holes 5 are symmetrically formed on the third track plate 4c adjacent to the second track plate 4b, wherein the third track plate 4c is connected in sequence with the end of the second track plate 4b away from the target position .

[0060] Four fixi...

Embodiment 2

[0071] Embodiment two, such as figure 1 , figure 2 , Figure 4 , Image 6 as well as Figure 7 as shown,

[0072] The target position is the center position of the pier 1 of the continuous beam segment.

[0073] Among the four track plates 4 on either side of the target position, six fixing holes 5 are symmetrically formed on the first track plate 4 a adjacent to the target position.

[0074] Six fixing holes 5 are symmetrically formed on the second track plate 4b adjacent to the first track plate 4a.

[0075] Four fixing holes 5 are symmetrically formed on the third track plate 4c adjacent to the second track plate 4b, wherein the third track plate 4c is sequentially connected with the end of the second track plate 4b away from the target position .

[0076] Four fixing holes 5 are symmetrically formed on the fourth track plate 4d adjacent to the third track plate 4c, wherein the fourth track plate 4d is sequentially connected with the end of the third track plate 4c ...

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Abstract

The embodiment of the invention discloses rail transit. The structure comprises a simply supported beam section, a continuous beam section, a plurality of piers and a plurality of chemical anchor bolts, and each of the simply supported beam section and the continuous beam section comprises a beam body laid on the corresponding pier, a supporting layer laid on the beam body, a plurality of rail plates connected in sequence and a mortar layer bonded between the supporting layer and the rail plates; wherein the girder seam position of the boundary of the simply supported beam section and the continuous beam section and / or the central position of the abutment corresponding to the continuous beam section are / is a target position; at least four adjacent rail plates on any side of the target position are provided with fixing holes, and the fixing holes penetrate through the rail plates and the mortar layer and extend to the supporting layer; and the chemical anchor bolts are arranged in the fixing holes. According to the rail transit provided by the embodiment of the invention, the upward arching deformation of the rail plate can be effectively prevented.

Description

technical field [0001] The present application relates to the field of ballastless track, in particular to a kind of rail transportation. Background technique [0002] At present, the operating mileage of China's high-speed railways has reached more than 29,000 kilometers, more than two-thirds of the total mileage of high-speed railways in the world. my country has become the country with the longest high-speed railway mileage and the highest transportation density in the world. The longitudinally connected slab track structure is one of the main structural forms used in domestic high-speed railway lines with a design speed of 350km / h. The total mileage of the main line is 4852km, accounting for about 30% of the total mileage of high-speed railways without tracks. [0003] The safety, stability and long-term durability of the longitudinally connected slab track structure are greatly affected by factors such as the connection state of the inter-slab joints at the end of the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B1/00E01B2/00E01D19/12
CPCE01B1/002E01B2/003E01D19/12
Inventor 赵虎孙立李秋义王森荣朱彬张世杰徐伟昌孙武鹏洪剑任西冲
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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