苏州轨道交通1号线风亭噪声特性分析  

Analysis of Ventilation Pavilion Noise Characteristics in Suzhou Rail Transit Line One

作　　者：施毅[1,2] 李双[3] 刘秀娟[4] 邢倩荷 

机构地区：[1]北京交通大学土木建筑学院,北京100044 [2]苏州市轨道交通集团有限公司,苏州215004 [3]苏州大学城市轨道交通学院,苏州215131 [4]上海交通大学机械系统与振动国家重点实验室,上海200240

出　　处：《都市快轨交通》2015年第6期26-29,共4页Urban Rapid Rail Transit

基　　金：江苏省教育厅资助高校优秀中青年教师和校长境外研修计划(20140206)

摘　　要：选取苏州轨道交通1号线的东环路站活塞风亭和塔园路站排风亭进行多种工况下的噪声测试和特性分析。结果表明：对于活塞风亭,隧道风机是主要噪声源,噪声在63-6 300 Hz范围能量都很高,风井消声器发挥显著作用,消声量约为25 d B;对于排风亭,排风机变频运行产生的噪声主要集中在315-1 250 Hz的中低频范围,排风机工频运行时噪声在200-4 000 Hz较大,消声器发挥了很好作用,降噪量约为21 d B。两种风亭附近的敏感居民楼均达到环境噪声评价标准。Noise testing and characteristics analysis of Donghuan Road piston ventilation pavilion and Tayuan Road exhaust ventilation pavilion in Suzhou Rail Transit Line 1 are carried out. The results show that the tunnel fan is the main noise source of the piston ventilation pavilion and noise energy is high in the range of 63 - 6 300 Hz. The air shaft muffler plays a significant role and the noise reduction is about 25 d B. To exhaust ventilation pavilion,noise energy is mainly in the range of 315 - 1 250 Hz under fan variable frequency condition and in the 200 - 4 000 Hz range under fan normal frequency condition and the muffle also works well and the noise reduction is about 21 d B. The noise level of sensitive residential buildings near these two ventilation pavilions has both reached the standard of environmental noise evaluation.

关 键 词：城市轨道交通 风亭噪声 消声器 噪声测试 

分 类 号：U231[交通运输工程—道路与铁道工程]