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| 列车运行引起的地面振动衰减分析 | |
| 引用本文： | 高广运,何俊锋,李志毅,杨先健.列车运行引起的地面振动衰减分析[J].长沙交通学院学报,2010,26(1):74-78. |
| 作者姓名： | 高广运 何俊锋 李志毅 杨先健 |
| 作者单位： | 1. 同济大学,岩土及地下工程教育部重点实验室,上海,200092 2. 中冶集团,建筑研究总院,北京,100088 3. 机械工业第四设计研究院,河南,洛阳,471039 |
| 摘 要： | 针对现有理论方法不能预测远距离地面振动的不足，对《动力机器基础设计规范》的地面振动衰减公式的参数进行适当调整，使其可用于预测铁路产生的地面振动衰减．计算了距铁路轨道中心50，100，200，400，500和1000m等不同测点处的地面振动，并与实测资料作了对比分析；首次预测并对比分析了列车运行引起的1000m远距离处地面振动传播与衰减．分析结果表明：调整后的《动力机器基础设计规范》公式可以预测铁路引起的远距离地面振动；由于实测加速度对比资料较少，因此，目前该公式仅推荐计算铁路的地面振动位移幅值和速度幅值． |
| 关 键 词： | 运行列车 地面振动 传播与衰减 远距离 位移和速度 |
Analysis on attenuation of ground vibration induced by moving train |
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| GAO Guang-yun,HE Jun-feng,LI Zhi-yi,YANG Xian-jian.Analysis on attenuation of ground vibration induced by moving train[J].Journal of Changsha Communications University,2010,26(1):74-78. | |
| Authors: | GAO Guang-yun HE Jun-feng LI Zhi-yi YANG Xian-jian |
| Institution: | 1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092,China; 2. Central Research Institute of Building and Construction of Met, Beijing 100088, China; 3. The 4th Design and Research Institute, Machinery Industry,Luoyang 471039, China) |
| Abstract: | The existing theory can not predict the long-range responses of the ground vibration, so an empirical formula is presented by adjusting the parameters in the attenuation formula in order to predict the ground vibration in the far field generated by a moving train. The formula is used to predict the ground vibrations at the distances of 50, 100, 200, 400, 500, and 1 000 m to the track center in the first time. The calculated ground vibration displacements are also compared with the measured ones. The results indicated that the formula can well predicted the propagation and attenuation of ground vibration responses generated by the moving trains. However, due to the lack of the measured vibration acceleration, the formula is only recommended to predict the vibration velocity and displacement of ground. |
| Keywords: | moving train ground vibration propagation and attenuation far field displacement and velocity |
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