高速公路声敏感点降噪措施改善研究

以四川省某高速公路沿线的居民噪声投诉案件为例,开展了敏感点声环境质量现状及既有声屏障措施效果调查分析,并采用文献调研及Cadna/A软件建模计算的方法,分别从噪声源、噪声传播途径、敏感建筑物三个层次进行了敏感点降噪措施改善研究,研究结果可为高速公路营运单位解决实际噪声扰民问题提供技术支撑,研究过程及方法可供类似项目参考借鉴。

Research on the Improvement of Noise Reduction Measures for Acoustic Environmental Sensitive Spots of Expressway

Due to the normalization of Enviromental Protection Supervision,motorway traffic noise related environmental complaints frequently occurred.This Paper took a case of express way traffic noise related environmental complaints in Sichuan province as an example,investigated and analyze current status of acoustic environmental quality of sensitive spots and the effect of existing sound barrier measures.By using the methods of literature research and by Cadna/A software modeling and calculation this paper studied the improvement of noise reduction measures for Acoustic Environmental Sensitive Spots from three levels: noise source,noise pathway and noise-sensitive buildings.The research results can provide technical support for expresswayoperating unit to solve the actual problem of noise disturbing the residents,and the research process and methods can be used as a reference for similar projects.