Prediction of high-speed train induced ground vibration based on train-track-ground system model

查看全文 作　　者：Zhai Wanming He Zhenxing Song [1]Xiaolin

机构地区：[1]Train and Track Research Institute, Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, China

出　　处：《Earthquake Engineering and Engineering Vibration》索引2010年第9卷第4期,共10页

基　　金：National Natural Science Foundation of China Under Grant No. 50838006 and No. 50823004;the Traction Power State Key Laboratory of Southwest Jiaotong University Under Grant No. 2008TPL-Z05;the Science and Technology Department of Sichuan Province 摘　　要：The development of analysis on train-induced ground vibration is briefly summarized. A train-track-ground integrated dynamic model is introduced in the paper to predict the ground vibration induced by high-speed trains. Representative dynamic responses of the train-track-ground system predicted by the model are presented. Some major results measured from two field tests on the ground vibration induced by two high-speed trains are reported. Numerical prediction with the proposed train-track-ground model is validated by the high-speed train running experiments. Research results show that the wheel/rail dynamic interaction caused by track irregularities has a significant influence on the ground acceleration and little influence on the ground displacement. The main frequencies of the ground vibration induced by high-speed trains are usually below 80 Hz. Compared with the ballasted track, the ballastless track structure can produce much larger train-induced ground vibration at frequencies above 40 Hz. The vertical ground vibration is much larger than the lateral and longitudinal components. 关键词：轨道不平顺高速列车地面系统振动预测动态模型火车地面振动基础

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Prediction of high-speed train induced ground vibration based on train-track-ground system model

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