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在道路两旁架设声屏障是解决交通车辆噪声问题的一种有效方法。为减小高速列车运行产生的噪声影响,在特殊地段和桥梁需架设声屏障,降低列车运行的脉动力及隔离噪声。那么采用什么结构的声屏障才能达到预期的效果,且安全可靠、经济适用和方便施工。此文针对在不同时速铁路桥梁上可采用的声屏障结构和所用材料及安装连接方式进行阐述,并对其造价和费用指标进行对比。结果表明,在高速铁路桥梁上架设3.3 m高的金属材料的声屏障造价最高,每延米达到5915元。
Erecting noise barriers on both sides of the road is an effective way to solve the problem of traffic noise. To reduce the noise impact of high-speed train operation, sound barriers should be set up in special sections and bridges to reduce the pulsating force and isolation noise of train operation. So what structure of the sound barrier in order to achieve the desired results, and safe, economical and convenient construction. In this paper, the structure of the sound barrier that can be used on different speed railway bridges and the materials and the installation and connection methods are described, and its cost and cost indicators are compared. The results show that the acoustic barrier with a 3.3 m-high metallic material on a high-speed railway bridge is the most expensive, with a cost of 5915 yuan per meter.