Journal
EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION
Volume 9, Issue 4, Pages 545-554Publisher
SPRINGER
DOI: 10.1007/s11803-010-0036-y
Keywords
high-speed railway; ground vibration; dynamic model; simulation; field experiment
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Funding
- National Natural Science Foundation of China (NSFC) [50838006, 50823004]
- Traction Power State Key Laboratory of Southwest Jiaotong University [2008TPL-Z05]
- Science and Technology Department of Sichuan Province
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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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