Combined prefabricated ballast bed suitable for shock absorption and noise reduction of railway tunnel

A technology of prefabricated roads and ballast beds, applied in the directions of roads, tracks, ballast layers, etc., can solve the problems of poor shock absorption and noise reduction, and achieve the effects of increasing the effective working area, reducing noise, and speeding up

Pending Publication Date: 2021-12-07
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to make up for the above deficiencies, the present invention provides a combined prefabricated track bed suitable for shock and noise reduction in railway tunnels, aiming to improve the problem of poor shock and noise reduction effects

Method used

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  • Combined prefabricated ballast bed suitable for shock absorption and noise reduction of railway tunnel
  • Combined prefabricated ballast bed suitable for shock absorption and noise reduction of railway tunnel
  • Combined prefabricated ballast bed suitable for shock absorption and noise reduction of railway tunnel

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Embodiment

[0039] see figure 1 , the present invention provides a technical solution: a combined prefabricated ballast bed suitable for vibration and noise reduction in railway tunnels, including a ballast bed assembly 100 .

[0040] Among them, seefigure 1 , the ballast bed assembly 100 can effectively reduce the noise generated by the train running in the railway tunnel, greatly reducing the dynamic effect of the train, and the prefabricated shock-absorbing and noise-reducing ballast bed can ensure the quality of the project and improve the construction efficiency.

[0041] see figure 1 , figure 2 and image 3 The track bed assembly 100 includes a prefabricated shell 110, a shock absorber 120, a prefabricated track bed slab 130, a sleeper 140, a sound-absorbing plate 150 and a steel rail 160, the shock absorber 120 is arranged in the prefabricated shell 110, and the shock absorber 120 is provided with a plurality of And they are respectively evenly distributed between the prefabric...

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Abstract

The invention provides a combined prefabricated ballast bed suitable for shock absorption and noise reduction of a railway tunnel and belongs to the technical field of railway tunnels. The ballast bed comprises a ballast bed assembly, wherein the ballast bed assembly comprises a prefabricated shell, a damping piece, a prefabricated ballast bed plate, a sleeper, a silencing plate and a steel rail, the damping piece is arranged in the prefabricated shell, the prefabricated ballast bed plate is arranged on the side, away from the prefabricated shell, of the damping piece, the sleeper is fixedly connected to the side, away from the damping piece, of the prefabricated ballast bed plate, and the silencing plate is fixedly connected to the side, close to the sleeper, of the prefabricated ballast bed plate; the silencing plate is provided with concave convex corrugations, and the steel rail conflicts with the silencing plate and can be fixedly connected to the sleeper, a damping piece comprises a vibration isolator and an elastic piece, the vibration isolator is fixedly connected to the prefabricated shell, one end of the elastic piece is fixedly connected to the vibration isolator, and the other end of the elastic piece is fixedly connected to the prefabricated ballast bed plate. The prefabricated ballast bed not only can have better shock absorption performance, but also has a better noise reduction effect.

Description

technical field [0001] The invention relates to the technical field of railway tunnels, in particular to a combined prefabricated track bed suitable for vibration and noise reduction of railway tunnels. Background technique [0002] With the rapid development of tunnel engineering in our country, the number of tunnel constructions is increasing continuously. The ballastless and ballasted structures of railway tunnel ballast bed are usually adopted. Among them, the ballastless track bed has the characteristics of high smoothness, less maintenance and prefabricated construction. Widely used in railway tunnels. At present, "passenger high-speed rail, freight heavy-duty" has become the main development direction of my country's railway transportation. Both high-speed trains and heavy-duty trains will generate large dynamic loads on the bottom structure of railway tunnels. In addition, due to the ballastless ballast bed structure High rigidity, while resisting the dynamic load of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B19/00E01B1/00
CPCE01B19/00E01B19/003E01B1/002
Inventor 李自强黄韦伟裴叔宸罗玲许智凡丁选明仉文岗
Owner CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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