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Sound absorption board

A technology of sound-absorbing panels and square panels, applied in the directions of roads, tracks, buildings, etc., can solve the problems of inconvenient use, poor sound-absorbing effect of sound-absorbing panels, and easy cracking, etc., so as to reduce the contact surface, maintain the sound-absorbing effect, and increase the absorption. amount of effect

Inactive Publication Date: 2014-08-27
LIUZHOU HANXIMING BUILDING MATERIAL DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to provide a sound-absorbing panel to solve the problem that the existing sound-absorbing panel has poor sound-absorbing effect, is easy to crack, and is inconvenient to use

Method used

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Embodiment Construction

[0015] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0016] Such as Figure 1 to Figure 4 This sound-absorbing panel shown, it comprises square plate 1, and this square plate 1 is cube, and its upper surface is as figure 1 The square plate 1 is viewed from above and its four sides are all L in length. There is a cross groove 2 at the bottom of the square plate 1. The cross groove 2 extends to the four longitudinal end faces of the square plate 1. The width D of the cross groove 2 and the height h The size can be adjusted according to the sleeper height of the specific ballast bed structure. Such as image 3 The sound-absorbing board is placed on the bridge deck between the two rail bearing platforms or on the bridge deck 3 in the middle of the trapezoidal sleeper track bed to fill the gap on the bridge deck and can absorb sound on the track bed all day long. The four corners at the bottom and the t...

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Abstract

The invention discloses a sound absorption board, and relates to the technical field of railway construction materials. The sound absorption board comprises a square plate that is cube-shaped; a cross concave groove which extends to four longitudinal end surfaces of the square plate is formed in the bottom part of the square plate. Compared with the prior art, the sound absorption board has the advantage that the problems of poor sound absorption effect, easy cracking, and inconvenient use of the existing sound absorption board can be solved.

Description

technical field [0001] The invention relates to the technical field of railway building materials, in particular to a sound-absorbing panel arranged on a bridge surface between rail platforms on a viaduct and a bridge surface between trapezoidal sleeper bed. Background technique [0002] In urban rail transit, due to the limited space available for construction in the city, in order to ensure the stability and smoothness of rail transit and reduce the maintenance of rail transit facilities, the overall track bed is generally used, but its noise reduction coefficient is very small, only about 0.07. During train operation, the noise is mainly caused by traction machine and power equipment noise, wheel-rail noise, and pantograph noise. In densely populated cities, these long-standing noises seriously affect the life and work of nearby residents. Only by solving these problems can urban rail transit be better developed. The noise between the two rails on the ballast bed is rela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B19/00
Inventor 徐荣铭周红梅
Owner LIUZHOU HANXIMING BUILDING MATERIAL DEV
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