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Numerical prediction of ground vibrations induced by high-speed trains including wheel–rail–soil coupled effects |
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| Institution: | 1. University of Mons — UMONS, Faculty of Engineering, Department of Theoretical Mechanics, Dynamics and Vibrations, Place du Parc 20, B-7000 Mons, Belgium;2. Heriot-Watt University, Institute for Infrastructure and Environment, Edinburgh EH14 4AS, United Kingdom;3. University of Porto, Faculty of Engineering, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal;1. Train and Track Reasearch Institute, State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, China;2. Department of Theoretical Mechanics, Dynamics and Vibrations, University of Mons, Mons, Belgium;3. Sichuan Province Airport Group Co., Ltd., Chengdu, China |
| Abstract: | A simplified analytical model including the coupled effects of the wheel–rail–soil system and geometric irregularities of the track is proposed for evaluation of the moving train load. The wheel–rail–soil system is simulated as a series of moving point loads on an Euler–Bernoulli beam resting on a visco-elastic half-space, and the wave-number transform is adopted to derive the 2.5D finite element formulation. The numerical model is validated by published data in the literature. Numerical predictions of ground vibrations by using the proposed method are conducted at a site on the Qin-Shen Line in China. |
| Keywords: | High-speed train Ground vibration 2 5D finite element method Track geometric irregularities Wheel–rail–soil coupled effects |
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