基于长期监测的市域快线室内振动噪声特性研究
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作者单位:

1.同济大学道路与交通工程教育部重点实验室,上海 201804 ;2.广州地铁设计研究院股份有限公司,广东 广州 510010 ;3.华东交通大学交通运输工程学院,江西 南昌 330013

作者简介:

翟利华(1978—),男,教授级高级工程师,博士,研究方向为城市轨道交通工程设计。E-mail:zhailihua@gmdi.com。

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中图分类号:

U238

基金项目:

国家自然科学基金项目(51868024)


Study on Indoor Vibration and Noise Characteristics of Urban Subway Based on Long-Term Monitoring
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Affiliation:

1.Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai 201804 , China ;2.Guangzhou Metro Design Institute Co., Ltd., Guangzhou 510010 , China ; 3.School of Transportation Engineering,East China Jiaotong University, Nanchang 330013 , China

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    摘要:

    为研究160 km/h市域快线诱发沿线建筑物室内振动与二次结构噪声的特性,在某新建运营的市域快线沿线一建筑物室内部署长期监测系统,开展长期振动噪声监测工作。基于对大量监测数据的分析,研究了160 km/h市域快线诱发沿线建筑物室内振动与二次结构噪声特性,以及不同行车速度下振动噪声特征的变化。分析结果表明,市域快线诱发室内振动各频段均有一定的离散性,其中在25.0~125.0 Hz频段的分频振级离散程度低于其他频段,市域快线诱发的室内二次结构噪声各频段分频声压级的离散性显著大于室内振动的分频振级离散性。二次结构噪声与背景噪声的差异主要集中在31.5~125.0 Hz频段。 市域快线诱发室内的振动分频振级与二次结构噪声分频声压级在31.5~100.0 Hz频段相关性较大,列车运行速度增大后,振级与二次结构噪声相关性并没有显著提高,但振动与二次结构噪声监测数据离散程度有所减少。列车运行速度增大后,分频振级在20.0~50.0 Hz有所增大,而二次结构噪声声压级仅在31.5 Hz处增大。

    Abstract:

    In order to study the characteristics of indoor vibration and secondary noise of buildings induced by 160 km/h urban subway, a long-term monitoring system was deployed in a building room along a new urban express line to carry out long-term vibration and noise monitoring. Based on the analysis of a large number of monitoring data,the characteristics of indoor vibration and secondary structural noise of buildings along the highspeed underground line are studied,and the changes of vibration and noise characteristics at different driving speeds are studied. The analysis results show that each frequency band of indoor vibration induced by subway has a certain degree of dispersion. In the 25.0~125.0 Hz frequency band,the dispersion degree of the frequency-divided vibration level is lower than that of other frequency bands. The dispersion of the frequency-divided sound pressure level of each frequency band of indoor secondary structural noise induced by subway is significantly greater than that of the frequency-divided vibration level of indoor vibration induced by subway. The difference between secondary structural noise and background noise is mainly concentrated in the 31.5~125.0 Hz frequency band. The correlation between the vibration frequency-divided vibration level and the secondary structural noise frequency-divided sound pressure level in the subway-induced room is large in the frequency band of 31.5~100.0 Hz. After the speed increases, the correlation between the vibration level and the secondary structural noise does not increase significantly, but the dispersion degree of the vibration and secondary structural noise monitoring data decreases. After the speed increases, the vibration frequency division vibration level increases at 20.0~50.0 Hz, while the secondary noise sound pressure level of the structure increases only at 31.5 Hz.

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翟利华,肖军华,徐璐, 等. 基于长期监测的市域快线室内振动噪声特性研究[J]. 华东交通大学学报,2025,42 (2):35-45.

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  • 收稿日期:2024-09-30
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  • 在线发布日期: 2025-05-16
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