摘要
通过对典型南方城市地铁1、2号线站点的检票区、候车区和车厢内噪声进行监测,获得各监测点的等效连续A声级(LAeq)、最大声压级(Lmax)、最小声压级(Lmin)、累计百分数声级(L10和L90)、声暴露级(SEL),分析地铁的声环境质量现状。结果显示:地铁车厢内噪声等效连续A声级(LAeq)为75.3 dB,候车区和检票区为62.8~72.3 dB,均符合国家标准限值。数据显示地铁车厢内噪声以500 Hz以下的低频噪声为主,总体声环境质量检票区优于候车区,候车区优于车厢内。
By monitoring the noise in the check-in area,waiting area and carriage of typical stations of Metro Line 1 and Line 2,the equivalent consecutive sound level A(LAeq),maximum sound level(Lmax),minimum sound level(Lmin),cumulative percentage sound level(L10 and L90),and sound exposure level(SEL) of each monitoring area were obtained to analyze the present situation of sound environment quality of Metro.The results showed that the equivalent continuous A sound level(LAeq) in Metro carriages was 75.3 dB,and the waiting and check-in areas were 62.8-72.3 dB,which all meet the national standard limits.The data showed that the noise in the subway carriage wasmainly low-frequency noise below 500 Hz.The overall sound environment quality of the ticket-checking area wasbetter than that of the waiting area,and that of the waiting area is better than that of the carriage.
作者
刘佳伟
杨明生
曹娟
LIU Jiawei;YANG Mingsheng;CAO Juan(School of Resources,Environmental and Chemical Engineering,Ministry of Education,Nanchang University,Nanchang 330031,China;Key Laboratory of Poyang Lake Environment and Resource Utilization,Ministry of Education,Nanchang University,Nanchang 330031,China)
出处
《南昌大学学报（工科版）》
CAS
2019年第4期318-321,共4页
Journal of Nanchang University(Engineering & Technology)
基金
国家自然科学基金资助项目(41561045)。
关键词
地铁
噪声监测
声环境质量
metro
noise monitoring
acoustic environment quality
