| 高速铁路沿线地面环境振动特性的实测与分析 |
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| 引用本文： | 刘腾,雷晓燕,刘庆杰.高速铁路沿线地面环境振动特性的实测与分析[J].华东交通大学学报,2011,28(4):19-22. |
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| 作者姓名： | 刘腾 雷晓燕 刘庆杰 |
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| 作者单位： | 华东交通大学铁路环境振动与噪声教育部工程研究中心,江西南昌,330013 |
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| 基金项目： | 国家自然科学基金项目(50978099); 江西省优势科技创新团队计划项目([2010]210) |
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| 摘 要： | 通过对我国某高速铁路路基区段高速列车引起的周围环境地面振动进行现场实测,根据测试数据进行了功率谱分析、Z振级分析和1/3倍频程分析.分析结果表明,列车以250～350 km·h-1高速运行时,在距轨道中心线水平距离30～60m处,地面振动随列车速度的提高而增大；地面振动能量主频在40 Hz左右；地面各处振动呈波动式变化...
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| 关 键 词： | 高速铁路 地面振动 振动特性 |
Survey and Analysis of the Vibration Characteristic of Ground Environment along the Rapid Transit Railway Line |
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| Liu Teng,Lei Xiaoyan,Liu Qingjie.Survey and Analysis of the Vibration Characteristic of Ground Environment along the Rapid Transit Railway Line[J].Journal of East China Jiaotong University,2011,28(4):19-22. |
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| Authors: | Liu Teng Lei Xiaoyan Liu Qingjie |
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| Institution: | Liu Teng Lei Xiaoyan Liu Qingjie(Engingeering Research Center of Railway Environment Vibration and Noise,Ministry of Education,East China Jiaotong University,Nanchang 330013,China) |
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| Abstract: | In this paper,on-the-spot measurement of the ground vibration induced by high-speed railway is conducted.According to the data,the Pow Spectrum,the z-level vibration and 1/3 octave band are analyzed.The results show that when the vehicle speed is 250-350 km·h -1,the vibration level away from centerline of 30-60 m will increase with the vehicle speed.The main frequency of vibration energy is about 40 Hz.The vibration level has fluctuation changing trend and decreases 2-3 dB every ten miles.The attenuating speed of high frequency vibration is greater than that of low frequency vibration.At the same time,the low-frequency vibration dominates the far places. |
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| Keywords: | high-speed railroad ground-borne vibration vibration characteristic |
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