|本期目录/Table of Contents|

[1]李〓杰,郭建中,姜〓亢,等.北京地铁岛式站台噪声的初步研究[J].中国安全生产科学技术,2012,8(8):153.
　LI Jie,GUO Jian zhong,JIANG Kang,et al.Pilot research on the Beijing subway island platform noise level[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2012,8(8):153.
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北京地铁岛式站台噪声的初步研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
8
期数:
2012年8期
页码:
153
栏目:
出版日期:
2012-08-31

文章信息/Info

Title:
Pilot research on the Beijing subway island platform noise level
作者:
李〓杰;  郭建中;  姜〓亢;  张〓蓓;  李〓浩;  王〓浩
（首都经济贸易大学 安全与环境工程学院，北京 100070）
Author(s):
LI Jie; GUO Jianzhong; JIANG Kang; LI Hao; ZHANG Bei; WANG Hao
（Safety and Environmental Engineering Department，Capital University of Economics and Business，Beijing 100070，China）
关键词:
北京地铁; 地铁站台; 噪声; 频谱
Keywords:
Beijing subway;  subway platform;  noise;  spectrum
分类号:
X966
DOI:
-
文献标志码:
A
摘要:
为研究北京岛式站台噪声水平及噪声特点，选取了北京地铁2号线和5号线的10个岛式站台进行了实地的测量，从噪声级以及频谱角度对测量结果进行了分析。结果显示，测量时间内的LAeq，max都高于标准限值80dB（A）。使用独立样本t检验的结果得出，2号线与5号线在LAeq以及LAeq，max上不存在显著差异（P>0.05），说明2号线和5号线噪声在相近的水平上。通过噪声频谱的时程曲线也直观的得出列车在进出站过程中噪声级大于80dB（A），无列车通过且不受相反轨道列车影响时的背景噪声在65dB（A）左右，受影响时在70dB(A)左右。倍频程频谱分析得出，地铁站台噪声具有明显的中频特征。进一步分析，2号线和5号线站台都存在若干的主频，其基频和谐频分别为63、250和1kHz。
Abstract:
In order to study the noise level and noise characteristics of Beijing Island subway Platform. 10 island platforms were selected and Measured from Line2 and Line5 of Beijing Metro, then noise level and character of spectrum were analyzed. The result show that，the LAeq，max within the measurement time was higher than the standard limit 80dB（A）. And the ttest demonstrated that there was no significant differences between Line2 and Line5（P>0.05）.Indicating that the noise of Line2 and Line5 were on a similar level. The time curves of the noise spectrum show that the noise level was also greater than 80dB（A）when the trains come and out of the station. The background noise was around 65dBA, that were no train passed and not affected by the opposite rail train. And at 70 dB（A）when affected. The results of octave spectrum show that the characteristics of subway platform noise were medium frequency noise.Further analyzed. Main frequency were exist between the platform of Line2 and Line5，and its fundamental frequency and harmonic frequencies were 63、250 and 1kHz.

参考文献/References:

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备注/Memo

备注/Memo:
2011年首都经济贸易大学研究生科研创新项目
更新日期/Last Update: 2012-10-16