[1]徐　平,杜炫錡,何　况,等.地铁出入线反射型声屏障降噪效果影响因素分析[J].郑州大学学报(工学版),2025,46(03):67-74.[doi:10.13705/j.issn.1671-6833.2025.03.003]
　XU Ping,DU Xuanqi,HE Kuang,et al.Analysis of Influencing Factors of Noise Reduction Effectiveness of Reflective Sound Barrier in Metro Access Line[J].Journal of Zhengzhou University (Engineering Science),2025,46(03):67-74.[doi:10.13705/j.issn.1671-6833.2025.03.003]
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地铁出入线反射型声屏障降噪效果影响因素分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
46
期数:
2025年03期
页码:
67-74
栏目:
出版日期:
2025-05-13

文章信息/Info

Title:
Analysis of Influencing Factors of Noise Reduction Effectiveness of Reflective Sound Barrier in Metro Access Line
文章编号:
1671-6833(2025)03-0067-08
作者:
徐　平1;  杜炫錡1;  何　况2;  杨延峰3
1.郑州大学 水利与交通学院,河南 郑州 450001;2.郑州地铁集团有限公司,河南 郑州 475004;3.中国铁道科学研究院集团有限公司,北京 100081
Author(s):
XU Ping1;  DU Xuanqi1;  HE Kuang2;  YANG Yanfeng3
1.School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou 450001, China; 2.Zhengzhou Metro Co., Ltd., Zhengzhou 475004, China; 3.China Academy of Railway Sciences Co., Ltd., Beijing 100081, China
关键词:
地铁出入线;  声屏障;  插入损失;  降噪效果;  影响因素
Keywords:
metro access line;  sound barrier;  insertion loss;  noise reduction effectiveness;  influence factors
分类号:
TB533+.2U231
DOI:
10.13705/j.issn.1671-6833.2025.03.003
文献标志码:
A
摘要:
为了改善地铁出入线沿线居民的生活环境,以郑州某线地铁出入线为工程实例,基于快速多极边界元方法,采用Virtual Lab声学仿真软件构建声屏障模型,将低速地铁列车行驶的轮轨噪声简化为双点声源,引入声压级插入损失来表征声屏障的降噪效果,分析了声源声压级、声屏障高度、声屏障与声源距离、声屏障顶端结构和受声点位置等因素对声屏障降噪效果的影响。根据仿真模拟结果,在地铁出入线靠近居民建筑一侧设置了高4 m、与双声源中心距离3 m的直立Y型反射声屏障,现场实测了声屏障设置后的噪声信号,获得了噪声特征参数,仿真结果与测试结果具有较好的吻合性,验证了仿真计算的合理性。地铁出入线沿线建筑与轨道中心的最近距离为30 m,实测的设置声屏障后沿线居民建筑的噪声满足相关规范要求,Y型反射声屏障具有较好的降噪效果。相关成果可为地铁出入线的声屏障设计和降噪效果评价提供参考。
Abstract:
In order to improve resident living environment along the metro access line, one section of Zhengzhou metro access line was taken as the example, the fast multi-pole boundary element method was considered, the sound barrier model was constructed with Virtual Lab acoustic simulation software, the wheel rail noise of low-speed subway train was simplified as a two-point sound source, the insertion loss of sound pressure level was adopted to characterize the noise reduction effectiveness of the sound barrier, and the influence of some factors on noise reduction effectiveness were analyzed such as the sound source sound pressure level, sound barrier height, distance between sound barriers and sound sources, the top structure of the sound barrier and the location in the sound shadow area. According to the simulation results, the vertical Y-shaped reflective sound barrier with 4 m height and 3 m distance from the center of dual sound sources was set up on the metro access line, the noise signals were in-situ measured, the noise characteristic parameters were obtained, and the simulation results had good agreement with the test results, the simulation calculation was verified to be reasonable. The closest distance between buildings along the metro access line and the center of the track is 30 meters, the noise of residential buildings with sound barrier along the line meet with relevant regulatory requirements, Y-shaped sound barrier had better noise reduction performance, and the relevant achievements could provide parameters for the noise reduction design and performance evaluation of metro access line.

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更新日期/Last Update: 2025-05-22