External-hanging sound barrier for rail transit

Abstract

The invention discloses an external-hanging sound barrier for rail transit. The sound barrier comprises a plurality of vertical steel columns located on one side of a rail. Every two adjacent vertical steel columns are fixedly connected through a support crossbeam. A guardrail board is disposed on one side, away from the rail, of each vertical steel column, and a sound absorbing and shielding body is located above the guardrail board. Each vertical steel column is provided with a through hole allowing a steel wire rope to penetrate. The sound barrier further comprises a noise sensor which is disposed on one side, away from the rail, of each sound absorbing and shielding body, and the noise sensor is connected with a control circuit which is connected with a storage battery. The sound barrier has the advantages that the sound barrier is durable in structure, stable in performance, convenient to mount, and good in appearance streamline, main body construction of the rail transit is unaffected, various cables are prevented from being exposed under sunlight, noise on the outer side of the sound barrier can be monitored in real time, and the noise reduction and sound shielding amount of the sound barrier is 10-15dB(A).

Description

technical field [0001] The invention relates to a sound barrier, in particular to a rail transit external sound barrier. Background technique [0002] With the progress of society and the development of cities, people's living standards continue to improve, urban traffic and intercity traffic has become the most closely related issues to us. Therefore, reducing the disturbance of noise to residents on both sides of the road has become an important task in the current urban construction of our country. Great convenience, but residents who live near these highways, light rails and high-speed rails suffer from traffic noise. In order to improve the living environment of citizens, relevant departments have installed various sound-absorbing and insulating barriers on both sides of the road and along the light rail and high-speed rail. [0003] At present, most of the sound barriers use sound absorption and sound insulation hybrid products, which are characterized by targeted co...

AI Technical Summary

Problems solved by technology

Rail transit sound-absorbing and sound-absorbing sound barriers are set on the concrete floor or guardrail on both sides of the track. The steel columns of the sound barrier and the catenary support are usually set on the same line. At the same time, the steel wire ropes used to stretch and stabilize the catenary support are also It needs to be cable-stayed and fixed, and there are horizontal support beams between the steel columns of the sound barrier, which brings difficulties to the installation of the sound barrier

[0004] At the same time, the existing rail transit sound barriers do not have an instant noise monitoring system. Once the sound barrier is damaged during rail transit operation or there are sound insulation loopholes in the sound barrier at the beginning of installation, it will not be able to achieve a good sound insulation effect during use. Noise pollution caused by the surrounding environment has not been monitored in real time

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