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, "Numerical Study of Trenches for the Reduction of Vibrations Induced by Traffic", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 221, 2014. doi:10.4203/ccp.104.221

Keywords: traffic induced vibrations, wave propagation, trenches.

Summary

This paper studies the efficiency of trenches constructed alongside a railway track as mitigation measures for vibrations induced by moving trains. A two-and-a-halfdimensional coupled boundary element-finite element methodology (2.5D BEMFEM) is used, being the main difference between this approach and similar methodologies proposed in previous works the fact that the fundamental solutions used to develop the BEM are obtained with the thin-layer method. The conditions at an existing and operational stretch of the Portuguese Railway Network are used as a scenario for the investigations, in which the behaviour of open trenches, concrete filled trenches and geofoam filled trenches is analysed for the passage of an Alfa Pendular train at the speed 220km/h. The train-track interaction is considered in the analyses and the efficiency of the trenches along the longitudinal direction is investigated.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 104 PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 221 Numerical Study of Trenches for the Reduction of Vibrations Induced by Traffic J. Barbosa, P. Alves Costa and R. Calçada Faculty of Engineering, University of Porto, Portugal doi:10.4203/ccp.104.221 purchase the full-text of this paper Full Bibliographic Reference for this paper , "Numerical Study of Trenches for the Reduction of Vibrations Induced by Traffic", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 221, 2014. doi:10.4203/ccp.104.221 Keywords: traffic induced vibrations, wave propagation, trenches. Summary This paper studies the efficiency of trenches constructed alongside a railway track as mitigation measures for vibrations induced by moving trains. A two-and-a-halfdimensional coupled boundary element-finite element methodology (2.5D BEMFEM) is used, being the main difference between this approach and similar methodologies proposed in previous works the fact that the fundamental solutions used to develop the BEM are obtained with the thin-layer method. The conditions at an existing and operational stretch of the Portuguese Railway Network are used as a scenario for the investigations, in which the behaviour of open trenches, concrete filled trenches and geofoam filled trenches is analysed for the passage of an Alfa Pendular train at the speed 220km/h. The train-track interaction is considered in the analyses and the efficiency of the trenches along the longitudinal direction is investigated. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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