高铁沿线声环境监测与评价

Monitoring and Assessment on the Environmental Noise of a High-speed Railway Line

目的了解某高铁沿线噪声,声环境质量状况。方法通过对铁路沿线边界噪声进行监测,根据我国现有的高铁沿线声环境评价标准开展分析评价。结果铁路边界噪声1 h等效声级符合《铁路边界噪声限值及其测量方法》(GB 12525—1990)的规定,但无法反映高铁列车运行时段对周边环境噪声的实际影响程度。结论需要研究和制定新的评价量及相应的标准来评价高铁噪声的影响。

Objective To investigate the condition of noise and acoustic environment along high-speed railway. Methods Choose a high-speed railway as the object of study. Boundary noise along the railway was monitored,and then was analyzed and assessed according to the existing criterion for acoustic environment evaluation alongside high-speed railway in China. Results 1 hour equivalent sound level of boundary noise alongside the high-speed railway satisfied the requriments on the national standard Noise limit value and measuring method of boundary alongside railway line（ GB 12525—1990）,however,these data could not turely reflect that high-speed railway noise how to impact on different function region. Conclusion New evaluation value and standard are needed to study and formulate for assessing the effect of high-speed railway noise.