Reduction in ground vibrations by using shaped landscapes |
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| Institution: | 1. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai, PR China;2. Shanghai Xinqiao Polytechnic college, Shanghai, PR China;3. Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong Special Administrative Region;4. Department of Transportation Engineering, TOD-based Sustainable Urban Transportation Center, Ajou University, Republic of Korea;5. Shanghai Key Laboratory of Mechanics in Energy Engineering, PR China;1. Key Laboratory of the Earth?s Deep Interior, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;2. Beijing Chinese Language and Culture College, Beijing 102206, China;1. School of Mathematics and Statistics, Beijing Institute of Technology, Beijing 100081, PR China;2. Beijing Key Laboratory on MCAACI, Beijing Institute of Technology, Beijing 100081, PR China;3. Department of Civil Engineering, University of Siegen, D-57068 Siegen, Germany;1. Department of Civil Engineering, Amirkabir University of Technology, Iran;2. Department of Civil Engineering, Yazd University, Iran;1. School of Civil Engineering, Dalian University of Technology, Dalian 116024, China;2. School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China |
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| Abstract: | Reduction in traffic-induced ground vibrations by the use of shaped landscapes is investigated here by shaping the landscape surrounding a high-tech facility, using the landscape thus produced as a wave obstacle. The effects of the geometric parameters of a shaped landscape were examined in parametric studies. An architectural landscape design was also investigated in terms of its effectiveness in reducing traffic-induced ground vibrations. Finite element models, analysed in the frequency domain, were employed. The models involve a layer of soil and the underlying bedrock. It was found that anywhere from an appreciable reduction to an appreciable amplification of the vibrations produced can occur, depending upon the geometric parameters of the shaped landscape involved. The most effective shape was found for a topography that acted as a waveguide that reduced the level of vibration by approximately 35%. |
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| Keywords: | Vibration reduction Shaped landscape Wave propagation Finite element method Traffic-induced vibrations Soil dynamics Viscous absorbing boundaries Ground vibration Irregular topography |
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