典型城市高架道路噪声环境降噪措施  

Noise-reduction measures for typical noise environments of the roads on urban viaduct

作　　者：吴伟 廖公云[2] 张乾坤 李依纯 浦玉炳 刘晓东 WU Wei;LIAO Gongyun;ZHANG Qiankun;LI Yichun;PU Yubing;LIU Xiaodong(Hefei Municipal Design&Research Institute Co.,Ltd.,Hefei 230041,China;School of Transportation,Southeast University,Nanjing 211189,China)

机构地区：[1]合肥市市政设计研究总院有限公司,安徽合肥230041 [2]东南大学交通学院,江苏南京211189

出　　处：《长沙理工大学学报（自然科学版）》2023年第1期75-85,共11页Journal of Changsha University of Science and Technology:Natural Science

基　　金：安徽省住房和城乡建设厅科学技术计划项目(2020-YF05)。

摘　　要：【目的】采用数值模拟手段确定与典型城市高架道路噪声环境相匹配的降噪措施。【方法】结合合肥市包公大道改建城市高架道路实体工程,采用SoundPLAN软件,建立3种典型城市高架道路声环境数字模型(包括改建高架桥、已有城市建筑、降噪措施等),分析不同降噪措施下的降噪效果;以声环境限值为标准,推荐典型声环境条件下的城市高架道路降噪方案。【结果】对于4a类声环境功能区,采用降噪路面即可满足环境噪声限值要求;对于2类声环境功能区,需要联合采用降噪路面+直立型声屏障,必要时结合货车禁行等交通管制措施;对于1类声环境功能区,条件允许时优先考虑设置降噪路面+全封闭式声屏障;随着声环境限值要求的提高,所需采取的城市高架道路降噪措施将更加严格,所需建设成本也更高。【结论】不同城市高架道路噪声环境需要匹配不同的降噪措施,本文研究成果可为改建城市高架道路降噪方案的设计与优选提供参考。[Purposes]This work aims to determine the noise reduction measures that match the noise environment of typical urban elevated roads by the numerical simulation method. [Methods] Based on real project of the rehabilitated Baogong Road on urban viaduct of Hefei City, three typical sound environment models for urban viaduct roads were built using SoundPLAN software, including the rehabilitated urban viaduct,existing city architectures, and noise-reduction measures. The noise-reduction effects under different noise-reduction measures were analyzed, and noise-reduction measures under typical acoustic environment conditions were recommended according to the noise limits. [Findings] In the 4a-class sound environment functional area, low-noise pavement was enough to meet the environmental noise limit requirements. For the 2-class sound environment functional area, a combination of low-noise pavement and vertical sound barrier must be utilized. Traffic control measures such as truck ban should be utilized if necessary. For the 1-class sound environment functional area, the low-noise pavement and fully enclosed sound barrier should be given priority when conditions permit. With the increase of the noise limit requirement of the environment, the noise-reduction measures needed for the road on urban viaduct would be strict and the construction cost would be high.[Conclusions] Different noise environments on the road on the urban viaduct demanded different matching noise-reduction measures. These findings could provide a guide for the design and selection of noise-reduction measures for the road on the urban viaduct.

关 键 词：防护工程 降噪措施 SoundPLAN 城市高架道路 交通噪声 声环境功能区 

分 类 号：U417.1[交通运输工程—道路与铁道工程]