3D coupled scaled boundary finite-element/finite-element analysis of ground vibrations induced by underground train movement |
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| Institution: | 1. Geotechnical Engineering, Shiraz University, Shiraz, Iran;2. Geotechnical Engineering, Yasouj University, Yasouj, Iran;1. Department of Civil Engineering, National Taiwan University, Taipei 10617, Taiwan;2. National Center for Research on Earthquake Engineering, Taipei 106, Taiwan;3. Department of Civil Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan;4. MOE Key Laboratory of New Technology for Construction of Cities in Mountain Area and School of Civil Engineering, Chongqing University, Chongqing 400045, China;1. Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, PR China;2. Department of Applied Mechanics, Chalmers University of Technology, SE-412 96 Göteborg, Sweden;1. Institute of Sound and Vibration Research, Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, UK;2. Infrastructure Research Group, Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, UK;1. ISISE, Department of Civil Engineering, University of Coimbra, Rua Luis Reis Santos, 3030-788 Coimbra, Portugal;2. Department of Civil Engineering, University of Porto – Faculty of Engineering, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal |
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| Abstract: | When trains move through the tunnels, vibrations are generated and transmitted to the surrounding ground causing vibrations and noises in adjacent structures. The vibrations and noises can sometimes reach such a high level that can hardly be tolerated by the neighboring residents especially in densely populated urban environments. Consequently, the problem of train-induced vibrations has received increasing attention from both engineers and researchers. This paper presents the application of the scaled boundary finite-element method (SBFEM) to the 3D analysis of ground vibrations induced by underground trains. The media around the tunnel is simulated by the SBFEM. The train track is modeled using the finite-element method. 3D examples in both frequency and time domains are addressed to validate the accuracy and applicability of the method. |
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| Keywords: | Ground vibration Train induced Scaled boundary finite-element method Euler beam element |
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