高速铁路周边建筑物环境振动现场测试与分析
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U213.313

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国家自然科学基金(51278121);广东省特色创新重点项目(2014KTSCX155)


Field test and analysis of the environmental vibration characteristics of building nearby the high speed railway
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    摘要:

    对高速铁路列车引起的周边建筑物与地面环境振动响应进行现场测试,利用频谱分析方法研究高速列车引起的周边地面与建筑物环境振动特性,结合城市铁路振动控制标准对高铁环境振动影响进行分析与评价。研究结果表明:时速270 km/h的高速列车产生的环境振动频率主要集中在25~60 Hz范围内;建筑物垂直振动大于水平振动,建筑物铅垂Z振级最高可达70.62 dB,建筑物二次振动具有明显的高度放大效应,建筑物顶层铅垂Z振级约为室内地面的1.094倍;周边地面振动明显大于建筑物振动,但两者表现出相似的变化规律,周边地面分频振级最高可达92.0 dB,而建筑物分频振级最大值仅为80 dB;高速铁路环境噪声值高达92.8 dB,超过城市环境噪声重度污染标准。高速铁路产生的环境噪声污染远大于环境振动影响,须采取相应的隔声降噪措施,以重点控制高速铁路环境噪声污染。

    Abstract:

    The in-situ test was carried out for the environmental vibration response of the surrounding buildings and the ground caused by high speed railway trains, the spectrum analysis method was used to study vibration characteristics of the surrounding buildings and ground. The environmental vibration levels of high speed railway was analyzed and evaluated in combination with the vibration control standard of urban railway. The results of study show that the environmental vibration frequency caused by the 270 km/h high-speed trains is mainly concentrated on the range of 25~60 Hz.The vertical vibration of building is larger than the horizontal vibration, the maximum of Z-level of vertical vibration is 70.62 dB. The second vibration in the building has a obvious height amplification effect, the maximum Z-level of vertical vibration on the top floor of the building is about 1.094 times of that on the first layer. The ground vibration is obviously larger than that of the surrounding buildings, but the similar changing law is shown between the ground and the building, the maximum of vibration level of division frequency on the ground can up to 92 dB, but the maximum of vibration level of division frequency on the buildings can only up to 80 dB. The environmental noise of high speed railway is up to 92.8 dB, more than the severe pollution standards of city environmental noise. Environmental noise pollution caused by high speed railway is greater than the impact of environmental vibration, the corresponding noise reduction and sound insulation measures should be adopted to effectively control the level of environmental noise.

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王祥秋,张火军,谢文玺.高速铁路周边建筑物环境振动现场测试与分析[J].土木与环境工程学报(中英文),2018,40(3):16-22. Wang Xiangqiu, Zhang Huojun, Xie Wenxi. Field test and analysis of the environmental vibration characteristics of building nearby the high speed railway[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2018,40(3):16-22.10.11835/j. issn.1674-4764.2018.03.003

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  • 收稿日期:2017-02-15
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  • 在线发布日期: 2018-04-26
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