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New-structure railway sound barrier

A new type of structure and sound barrier technology, applied in buildings, noise absorption devices, etc., can solve the problems of sound leakage, loss of noise reduction effect of sound barriers, and failure of sound absorbing materials.

Active Publication Date: 2016-07-27
CHINA RAILWAY DESIGN GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to factors such as construction accuracy, vibration, and plate deformation, there may be gaps between unit plates in this connection method, which may cause potential sound leakage.
[0003] It is known that the sound-absorbing material inside the metal sound barrier is mostly mineral wool, and this kind of sound-absorbing material has poor weather resistance and cannot achieve the same service life as other components of the sound barrier unit panel
Often the sound absorbing material fails prematurely and the sound barrier loses its noise reduction effect

Method used

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  • New-structure railway sound barrier
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Effect test

Embodiment Construction

[0040] An embodiment of the present invention will be further described in conjunction with the accompanying drawings.

[0041] combine figure 1 and image 3 As can be seen. The new-type railway sound barrier has multiple H-shaped steels 23 for fixing unit plates, and the H-shaped steels 23 are connected to the foundation through embedded bolts. The new structure railway sound barrier unit plate (hereinafter referred to as the unit plate) 1 is sequentially inserted between the flanges of the H-shaped steel 23, and a vibration-damping rubber plate is arranged between the bottom unit plate and the foundation. After the uppermost unit plate is inserted, the C-shaped top cover plate 25 is fixed by bolts 26, and an elastic top rubber block 24 is placed between the C-shaped top cover plate 25 and the unit plate.

[0042] In the implementation example, the sound barrier is composed of four unit panels 1 , and other numbers of unit panels 1 also meet the requirements. The required...

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Abstract

The invention relates to a new-structure railway sound barrier which is mainly formed by combining a plurality of new-structure railway sound barrier unit plates (1). Each new-structure railway sound barrier unit plate (1) is composed of an aluminum alloy housing and a light sound absorbing plate (6), wherein the aluminum alloy housing consists of a bottom aluminum section bar (4), a top aluminum section bar (3), end aluminum section bars (5) at the two ends and a U-shaped panel (2). The two sides of each U-shaped panel (2) are restrained in insertion slots of the aluminum section bars (5) at the two ends; each bottom aluminum section bar (4) and each top aluminum section bar (3) are respectively fixed to the top and the bottom of each U-shaped panel (2) through rivets. Each light sound absorbing plate (6) is fixedly arranged in the aluminum alloy housing through upper and lower aluminum section bar clamping slots; each light sound absorbing plate is made of a light sound absorbing material with high strength, good weather resistance and good sound absorption; and a light receiving surface of each light sound absorbing plate (6) is provided with concave and convex slots (22) with special dimension so as to achieve a better noise reduction effect.

Description

technical field [0001] The invention relates to the technical field of noise prevention and control, in particular to the railway sound barrier technology. Background technique [0002] Due to the convenient installation and mature technology of the plug-in sound barrier, it is widely used in engineering projects. The plug-in sound barrier unit board can be mainly divided into two types: metal type and non-metal type. Non-metallic unit panels are often used in roadbed sound barrier projects due to their heavy weight. Metal sound barriers have a wide range of applications, but due to their high cost, they are mostly used in bridge section sound barrier projects. There are many styles of metal sound barriers, and the unit plates of metal sound barriers commonly used in railway noise control projects are mostly unit plates composed of two aluminum plates through pre-denatured fastening. The upper and lower unit boards are connected by a groove with a small depth. Due to fac...

Claims

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Application Information

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IPC IPC(8): E01F8/00
CPCE01F8/0005E01F8/0017
Inventor 周继超薛林海石玉川刘冀钊孙凤珍朱正清申耀国
Owner CHINA RAILWAY DESIGN GRP CO LTD
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