Maintenance-liable elastic cushion damping ballast bed

An elastic pad, easy maintenance technology, applied in the direction of roads, tracks, buildings, etc., can solve the problems of promotion and application, many impurities in water, discount of vibration reduction effect, etc., to achieve the effect of broad market application prospects, high cost performance and simple structure

Active Publication Date: 2017-07-14
GERB QINGDAO VIBRATION CONTROL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are some defects in this kind of technical solution in practical application. Taking the subway as an example, due to the harsh environment of many road sections in the tunnel, there are many impurities in the water, typical problems such as high acid and alkali content, which cause the elastic pad to age easily, etc. Once the elastic pad is aged, its elasticity will be weakened, and the vibration damping effect will be greatly reduced, making it difficult to continue to meet environmental protection requirements
However, the existing technical solutions cannot easily replace the elastic pad. Therefore, although this type of technology has many advantages such as low cost, convenient laying, and good safety, it is restricted by the technical bottleneck of being unable to easily replace the elastic pad. , its popularization and application has been seriously affected

Method used

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  • Maintenance-liable elastic cushion damping ballast bed
  • Maintenance-liable elastic cushion damping ballast bed
  • Maintenance-liable elastic cushion damping ballast bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 , figure 2 , image 3 and Figure 4 The easy-to-maintain elastic pad vibration damping track bed of the present invention includes elastic pad 4 and track plate. Due to the limited picture width, figure 1 The figure only shows the track slab 1 , the track slab 2 and the track slab 3 arranged successively in sequence, and each track slab is provided with a plate lifting structure 7 respectively. The structure of the easy-to-maintain elastic cushion damping track bed of the present invention is illustrated below by taking the track plate 2 as an example, as figure 1 and figure 2 As shown, the cross-section of the track plate 2 is an inverted trapezoid, and the contour of the foundation 11 matched with it corresponds to it. The elastic pad 4 is placed on the foundation 11, the track plate 2 is placed above the elastic pad 4, and between the track plate 2 and the elastic pad 4 An isolation layer 8 is also provided, and the isolation layer 8 is specif...

Embodiment 2

[0040] Such as Figure 5 , Figure 6 The difference between the easy-to-maintain elastic pad vibration-damping trackbed of the present invention and the first embodiment is that a limiting member 16 is set in the plate body lifting structure 7 set on the track plate. Still take the track plate 2 as an example, such as Figure 5 As shown in , the limiting member 16 is specifically a shear pin, the lower part of the shear pin is embedded in the foundation 11 , and the upper part of the shear pin is embedded in the plate lifting structure 7 . In this example, since the limit piece 16 is set in the plate body lifting structure 7, it can effectively prevent the relative movement between the track plate and the foundation during use, so basically there is no need to set a limit boss, and the track plate There is also no need to set a limit groove, so the structure of the track plate and the foundation is simpler, and the structure of the entire ballast bed is also simpler, which i...

Embodiment 3

[0043] Such as Figure 7 , Figure 8 The difference between the easy-to-maintain elastic pad vibration-reducing track bed of the present invention and Embodiment 1 is that the cross-sectional shape of the track plate is basin-shaped, and the structure of the easy-maintain elastic pad vibration-damping track bed of the present invention will be described below using the track plate 2 as an example. description, such as Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, the track plate 2 is provided with a plate body lifting structure, and the plate body lifting structure includes the lifting relief holes 50 respectively arranged at the two ends of the track plate 2 along the transverse direction of the rail, and the lower two sides of the lifting relief holes are respectively provided with Jacking groove 10 is arranged. In addition, the pad traction structure provided on the elastic pad 4 is specifically the traction rings 20 respectively provided at both ends of t...

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Abstract

The invention belongs to the field of vibration and noise control of rail transportation and particularly relates to a plate-type rail ballast bed structure adopting a damping cushion layer for elastic supporting. The maintenance-liable elastic cushion damping ballast bed comprises an elastic cushion and a rail plate. The elastic cushion is placed onto a foundation, and the rail plate is placed onto the elastic cushion. A steel rail and a fastener system are arranged on the rail plate. The elastic cushion and at least part of a rail plate body are embedded into the foundation. The cross section of the rail plate is in a basin shape or an inverted-trapezoidal shape and corresponds to the outline of the foundation matched with the cross section of the rail plate. An isolating layer is arranged between the rail plate and the elastic cushion. The rail plate is further provided with a plate body lifting structure. According to the maintenance-liable elastic cushion damping ballast bed, maintenance and replacement of the elastic cushion can be conveniently achieved, and the problem existing in the ballast bed technical scheme adopting the elastic cushion to conduct damping at present is solved, the structure of the maintenance-liable elastic cushion damping ballast bed is simple, the practicable property is high, the safe and reliable effects are achieved, the ratio of performance to price is higher, and the market application prospects are pretty wide.

Description

technical field [0001] The invention belongs to the field of vibration and noise control of rail traffic, and in particular relates to a slab track track bed structure elastically supported by a vibration damping cushion. Background technique [0002] In recent years, with the rapid development of my country's rail transit, rail transit has gradually entered our lives. While rail transit provides us with fast and safe travel, the vibration and noise problems it generates seriously affect the quality of life of surrounding residents and endanger the safety of surrounding buildings. At the same time, it affects the stability and safety of rail transit itself. And service life etc. also bring many adverse effects. Therefore, trying to reduce the vibration and noise of the track and improve its harmonious relationship with nature and the living environment has become the key to the sustainable development of rail transit. At present, in rail transit vibration reduction and noi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B19/00
CPCE01B19/003
Inventor 尹学军王建立孔祥斐王建刘兴龙王乾安高云峰
Owner GERB QINGDAO VIBRATION CONTROL
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