地铁车辆段试车线噪声源强及传播规律实测分析  

Analysis of the Noise Source Intensity and Its Propagation Rule for the Test Line of Metro Depot

作　　者：林楚娟[1] 邢诒 梁常德 戚月昆[1] 刘宇宏[1] 

机构地区：[1]深圳市深港产学研环保工程技术股份有限公司,广东深圳518057 [2]深圳市人居环境技术审查中心,广东深圳518055

出　　处：《环境监控与预警》2015年第4期43-46,共4页Environmental Monitoring and Forewarning

基　　金：深圳市2013年政府采购项目

摘　　要：以深圳市前海湾车辆段和横岗车辆段试车线为例,对其试车过程中的噪声影响源强及传播情况进行实测分析。结果表明,试车线车辆行驶速度约为36 km/h,噪声源强LeqA约为73 d B左右,试车中噪声最大值约为83 d B;试车线内噪声源的传播并不完全遵循一般的线性递减规律,在距声源30 m范围内,距声源越近,衰减量越小,反之,主要是由于距离声源越远,受到墙体或立柱等阻挡引起的附加衰减就越大。Based on the noise measurements of the test lines in the Shenzhen Qianhai Bay and Henggang Metro depots, the noise source intensity and its propagation during testing are analyzed in this paper. The results show that when the driving speed of the test vehicle is about 36 km/h, the intensity of the noise source （expressed in LoqA） is approximately 73 dB, and the maximum is about 83 dB. The spread of the noise from the test line is not fully following the general linear decrease rule. Within the scope 30 meters from the noise source, the nearer to the sound source is, the smaller the attenuation, while the farther away from the noise source, the greater the attenuation.

关 键 词：地铁车辆段 试车线噪声 噪声源强 噪声传播规律 深圳市 

分 类 号：X827[环境科学与工程—环境工程]