Abstract
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.
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Supported by: 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
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Zhai, W., He, Z. & Song, X. Prediction of high-speed train induced ground vibration based on train-track-ground system model. Earthq. Eng. Eng. Vib. 9, 545–554 (2010). https://doi.org/10.1007/s11803-010-0036-y
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DOI: https://doi.org/10.1007/s11803-010-0036-y