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J. Amblard¹, C. Pams Capoccioni¹, D. Nivon¹, L. Mellal¹, G. De Cesare², T. Ghilardi², M. Jafarnejad² and E. Battisacco²

¹Project System Engineering, Société Nationale des Chemins de Fer, La Plaine Saint-Denis, France
²Laboratory of Hydraulic Constructions, Ecole Polytechnique Fédérale de Lausanne, Switzerland

Keywords: ballast transport, natural disaster, risk analysis, drainage overflowing, physical model, railway track structure.

Abstract

The transport of ballast caused by the overflowing of longitudinal drains is a prime example of the interactions between the railway track and its environment. In such conditions, water flowing from the platform, along with debris, may drag the ballast off the track foundation. The rate of ballast erosion rises when obstacles are placed along the platform.

To better understand the phenomenon of ballast transport, research was undertaken in collaboration with Ecole Polytechnique Fédérale de Lausanne (EPFL). Systematic tests were performed on a physical model, using a 1:3 scale factor, under both normal and severe operational conditions, as well as in the case of a platform obstructed by obstacles. Numerical simulations were also run to evaluate different optimised configurations for the drainage system of the platform.

The obtained results have improved the understanding of the phenomenon of ballast transport and have made it possible to identify at risk areas where the overflowing may negatively affect the railway traffic.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	International Journal of Railway Technology ISSN 2049-5358 IJRT, Volume 4, Issue 2, 2015 Analysis of Ballast Transport in the Event of Overflowing of the Drainage System on High Speed Lines J. Amblard¹, C. Pams Capoccioni¹, D. Nivon¹, L. Mellal¹, G. De Cesare², T. Ghilardi², M. Jafarnejad² and E. Battisacco² ¹Project System Engineering, Société Nationale des Chemins de Fer, La Plaine Saint-Denis, France ²Laboratory of Hydraulic Constructions, Ecole Polytechnique Fédérale de Lausanne, Switzerland doi:10.4203/ijrt.4.2.2 purchase the full-text of this paper Full Bibliographic Reference for this paper J. Amblard, C. Pams Capoccioni, D. Nivon, L. Mellal, G. De Cesare, T. Ghilardi, M. Jafarnejad, E. Battisacco, "Analysis of Ballast Transport in the Event of Overflowing of the Drainage System on High Speed Lines", International Journal of Railway Technology, 4(2), 19-43, 2015. doi:10.4203/ijrt.4.2.2 Keywords: ballast transport, natural disaster, risk analysis, drainage overflowing, physical model, railway track structure. Abstract The transport of ballast caused by the overflowing of longitudinal drains is a prime example of the interactions between the railway track and its environment. In such conditions, water flowing from the platform, along with debris, may drag the ballast off the track foundation. The rate of ballast erosion rises when obstacles are placed along the platform. To better understand the phenomenon of ballast transport, research was undertaken in collaboration with Ecole Polytechnique Fédérale de Lausanne (EPFL). Systematic tests were performed on a physical model, using a 1:3 scale factor, under both normal and severe operational conditions, as well as in the case of a platform obstructed by obstacles. Numerical simulations were also run to evaluate different optimised configurations for the drainage system of the platform. The obtained results have improved the understanding of the phenomenon of ballast transport and have made it possible to identify at risk areas where the overflowing may negatively affect the railway traffic. 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 IJRT purchase this issue (price £80 +P&P)
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