Railway plug-in ultra-high-strength concrete-microporous ceramic composite sound barrier unit board

Abstract

The invention discloses a railway inserting plate type super-high strength concrete-micro-porous ceramic compound sound barrier unit plate. The sound barrier unit plate is composed of two rib plates on the periphery, a back plate fixed on the back portions of the rib plates and a micro-porous ceramic sound-absorbing plate fixed between the rib plates; the back plate and the rib plates are prefabricated and combined through reactive powder concrete to form a dovetail-groove-shaped cavity, and the upper end and the lower end of the sound-absorbing plate are each provided with a first oblique plane matched with the dovetail-groove-shaped cavity; the sound-absorbing plate is embedded in the dovetail-groove-shaped cavity to form an embedded fixing structure, and a hollow cavity is formed between the back plate and the sound-absorbing plate. The sound barrier unit plate adopts the reactive powder concrete with super strength, the sound-absorbing plate adopts a micro-porous ceramic body, the sound-absorbing plate is installed by applying structural modes such as embedding and fixing in the stress structure, therefore, the unit plate has better weather resistance, the construction is more reasonable and stable, materials are more environment-friendly, the effects of sound absorbing and noise reducing are obvious, and the maintenance is more convenient and safer in operation.

Description

technical field [0001] The invention belongs to the technical field of railway operation noise control, in particular to high-speed railway noise control technology, and in particular to a railway insert type ultra-high-strength concrete-microporous ceramic composite sound barrier unit plate applied to both sides of a railway road. Background technique [0002] The sound barrier is a facility inserted between the sound source and the receiver, so that the sound wave propagation has a significant additional attenuation, thereby reducing the impact of noise in a certain area where the receiver is located. [0003] Existing plate-type non-metallic sound barriers usually use inorganic fibers such as ultra-fine glass wool and mineral wool as sound-absorbing materials. However, ultra-fine glass wool sound-absorbing materials usually have low strength, are brittle and easily broken, and are easily stained by vacuuming. After dusting, they are easy to fly and cause secondary polluti...

AI Technical Summary

Problems solved by technology

[0006] Due to the structural characteristics of some existing plug-in sound barriers, it is impossible to repair the state of the H-shaped steel column connected to the outer connecting bolts of the line, which poses a safety hazard to the operation.

Its comprehensive performance is difficult to meet the performance needs of a wider range of railway noise barriers

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