噪声与振动控制2019，Vol.39Issue(3)：152-157,6.DOI:10.3969/j.issn.1006-1355.2019.03.030
综合交通枢纽站内环境噪声特性分析
Analysis of Environmental Noise Characteristics in Integrated Transport Hubs
摘要
Abstract
The comfort of workers and passengers is directly affected by the level of environmental noise in integrated transport hubs, which is also critical to the sustainable development of railway station areas. Sound pressure level of different structural layers are measured in an integrated transport hub, and then analyzed in time domain and frequency domain. The impacts of different types of trains and train’s arrival and departure on the environmental noise of the platform layer and waiting hall are studied. Research conclusions are as follows (1) The equivalent sound pressure level (SPL) in the platform layer is 65.4 dB(A) - 70.2 dB(A) and the equivalent SPL in the waiting hall in the rush hour is 72.8 dB(A), which is 4.6 dB(A) higher than that in the flat peak time. The measured noise level is higher than the comfort limits in the range of 40 Hz- 200 Hz. (2) The maximum SPL and response time of the platform layer caused by different types of trains and train’s arrival and departure are various. However, the dominant noise frequencies of the frequency spectrum response are all in 400 Hz - 2 500 Hz range. (3) During the trains’entering the station with braking, the low-frequency noise responses of the platform and the waiting hall remain unchanged basically, and the noise response in a higher frequency range increases rapidly, which is caused by the collision between the wheel and rail, braking, etc. As a result, the dominant frequency shifts to a high frequency range. The equivalent A-sound levels are 73.8 dB(A) for the platform layer and 75.3 dB(A) for the waiting hall. (4) As the distance between the key point of the platform and the track centerline increases, the noise response exhibits logarithmic attenuation. (5) Subway accessing station has little effect on the environmental noise in the waiting hall.关键词
声学/综合交通枢纽/现场试验/特性分析Key words
acoustics/ integrated transport hub/ field test/ characteristic analysis分类
通用工业技术引用本文复制引用
罗锟,张新亚,雷晓燕..综合交通枢纽站内环境噪声特性分析[J].噪声与振动控制,2019,39(3):152-157,6.基金项目
国家自然科学基金资助项目(11862024,51264037) （11862024,51264037）
云南大学研究生科研创新基金资助项目(YDY17090) （YDY17090）
