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Adjustable ballastless track structure, ballastless track and adjustment method

A technology of ballastless track and adjustment method, which is applied in the field of rail transit, can solve the problems of consuming huge manpower and material resources, and long construction period, and achieve the effects of good adaptability, strong adaptability, and simple construction and adjustment operations

Active Publication Date: 2019-05-14
和振兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Add a certain thickness of filling layer between the structural layers under the track slab, so as to achieve the purpose of lifting the track slab and track structure; However, this method requires special equipment, circular grouting, a long construction period, measurement and monitoring requires full cooperation, and consumes huge manpower and material resources

Method used

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  • Adjustable ballastless track structure, ballastless track and adjustment method
  • Adjustable ballastless track structure, ballastless track and adjustment method
  • Adjustable ballastless track structure, ballastless track and adjustment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] like Figure 1-17 As shown, the adjustable ballastless track structure of the present invention includes a rail bearing groove 1 for setting a sleeper 2 .

[0072] The two opposite side walls 11 of the bearing rail groove 1 are respectively connected with side adjustment pads 3, and the two opposite end walls 12 of the said bearing rail groove 1 are respectively connected with end adjustment pads 4. The groove bottom 13 of the rail groove 1 is provided with a bottom adjustment pad 5, and the side adjustment pad 3, the end adjustment pad 4 and the bottom adjustment pad 5 are all connected to the sleeper 2, and the side adjustment pad 3, the bottom adjustment pad 5 The materials of the end adjustment pad 4 and the bottom adjustment pad 5 are hard rubber or resin.

[0073] As a preferred solution of this embodiment, the cross-section of each of the side adjustment pads 3 is a variable cross-section shape with a thick middle part and thin ends, and the cross-section of the...

Embodiment 2

[0078] like Figure 1-17 As shown, in the ballastless track of the present invention, a ballast bed 6 is laid on the track foundation of the ballastless track, and the ballast bed 6 is provided with a number of adjustable ballastless tracks distributed in an array as described in Embodiment 1. Ballast track structure, all the sleepers 2 are connected to steel rails through fasteners.

[0079] Wherein, the ballast bed 6 is a cast-in-place concrete structure.

[0080] When using the ballast bed 6 for pouring, according to the required adjustment method and adjustment amount determined by the track foundation deformation prediction, select the bottom adjustment pad 5, the side adjustment pad 3, and the end adjustment pad 4 with a necessary thickness, and tie the sleeper 2 and The bottom adjustment pad 5, the side adjustment pad 3, and the end adjustment pad 4 are reliably connected by methods such as bonding, wherein the bottom adjustment pad, the side adjustment pad and the end a...

Embodiment 3

[0084] like Figure 1-17 As shown, the adjustment method of the adjustable ballastless track structure of the present invention, the application of the adjustable ballastless track structure as described in Embodiment 1, comprises the following steps:

[0085] A. Pull the sleeper 2 out of the rail support groove 1, and remove the side adjustment pad 3, the end adjustment pad 4 and the bottom adjustment pad 5;

[0086] B. Set the side adjustment pad 3 , the end adjustment pad 4 and the bottom adjustment pad 5 in the rail groove 1 according to adjustment requirements;

[0087] C. Set the sleeper 2 on the bottom adjustment pad 5, finely adjust the position of the sleeper 2, and place the side adjustment pad 3, the end adjustment pad 4 and the bottom adjustment pad 5 respectively It is fixedly connected with the sleeper 2 to complete the adjustment.

[0088] Wherein, the sleeper 2 is set on the bottom adjustment pad 5, the position of the sleeper 2 is finely adjusted, and the si...

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Abstract

The invention discloses an adjustable type ballastless track structure. The adjustable type ballastless track structure comprises a rail bearing groove, wherein the rail bearing groove is used for enabling a sleeper to be arranged in; side surface adjusting cushions are separately connected to two sidewalls of the rail bearing groove; end part adjusting cushions are separately connected to two end walls of the rail bearing groove; a bottom adjusting cushion is arranged at the bottom of the rail bearing groove; and the side surface adjusting cushions, the end part adjusting cushions and the bottom adjusting cushion are respectively connected with the sleeper, and are respectively made of hard rubber materials, or resin materials or hard polyurethane plastic materials. Through the adoption of the adjustable type ballastless track structure disclosed by the invention, five limiting surfaces of the sleeper are respectively connected with the adjusting cushions, and all the adjusting cushions are respectively made of the hard rubber materials, or the resin materials or the hard polyurethane plastic materials, so that adjusting the thickness of each of the adjusting cushions is facilitated in manners of changing the thickness of the cushions, injecting glue or bonding the resin, the left-and-right position, the high-and-low position or the deflection angle of the sleeper relative to a track bed are adjusted, the adjusting cushions are adjustable in texture and elasticity and controllable in deformation, and the sleeper is effectively limited; and the adjustable type ballastless track structure disclosed by the invention is high in adaptability to under-rail basic deformation, simple in construction operation and adjusting operation, high in speed and convenient to popularize.

Description

technical field [0001] The invention relates to the technical field of rail transportation, in particular to an adjustable ballastless track structure, a ballastless track and an adjustment method. Background technique [0002] Ballastless track has the advantages of high stability, less maintenance and long service life, and has been widely used in domestic and foreign urban rail, subway, passenger dedicated line, high-speed railway and other rail transportation. The ballasted track can easily adjust the geometric shape of the track space by changing the ballast. At present, after the ballastless track is put into use, the adjustment of the spatial geometric shape is mainly realized by fasteners, supplemented by longitudinal section fitting of the two ends of the track Optimal adjustment, but the adjustment ability of the fastener system is limited, the general height adjustment ability is 30mm, and the gauge adjustment ability is -12~+8mm. Even if special height adjustmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B1/00E01B29/00
CPCE01B1/005E01B29/00E01B2204/01E01B2204/11
Inventor 和振兴
Owner 和振兴