铁路扩能改造工程声环境影响预测分析  

Prediction and Analysis of Acoustic Environmental Impact of Railway Capacity Expansion and Reconstruction Project

作　　者：熊超然 XIONG Chaoran(Environmental Engineering Design and Research Institute,China Railway Engineering Consulting Group CO., Ltd.,Beijing 100055,China)

机构地区：[1]中铁工程设计咨询集团有限公司环境工程设计研究院,北京100055

出　　处：《铁路节能环保与安全卫生》2019年第2期17-20,共4页Railway Energy Saving & Environmental Protection & Occupational Safety and Health

摘　　要：以某铁路扩能改造工程项目为例,根据具体工况条件,采用模式预测法进行既有铁路噪声预测和验证,并利用验证的预测方法进行改造后铁路噪声影响预测。预测结果表明,与既有铁路实际监测值相比,改造后噪声值昼间降低0.4～3.4 dB(A),夜间降低2.0～4.8 dB(A),说明铁路电气化改造对沿线噪声敏感点的改善较为明显。Taking a railway capacity expansion and reconstruction project as an example, according to the specific working conditions, the existing railway noise is predicted and verified by mode prediction method, and the influence of railway noise after reconstruction is predicted by verification prediction method. The prediction results show that compared with the actual monitoring value of the existing railway, the noise value after the renovation is reduced by 0.4 ~ 3.4 dB(A) in daytime and 2.0 ~ 4.8 dB (A) at night. This shows that reducing the noise value at the sound source has a significant effect on the overall noise reduction, and shows that the improvement of noise sensitive points along the line railway is obvious after electrification transformation.

关 键 词：铁路 扩能改造 噪声影响 预测 

分 类 号：U218[交通运输工程—道路与铁道工程] X827[环境科学与工程—环境工程]