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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 110
PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
Edited by: J. Pombo
Paper 16

Investigation of the Lateral Resistance of Ballasted Tracks using the Discrete Element Method

J.-F. Ferellec1, M. Woné2, R. Perales3 and G. Saussine1

1Engineering & Projects, SNCF, La Plaine Saint Denis, France
2ITG, Paris, France
3AD'missions, Paris, France

Full Bibliographic Reference for this paper
J.-F. Ferellec, M. Woné, R. Perales, G. Saussine, "Investigation of the Lateral Resistance of Ballasted Tracks using the Discrete Element Method", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 16, 2016. doi:10.4203/ccp.110.16
Keywords: ballast, railway, tamping, stabilisation, polyhedron, discrete element method, non-smooth contact dynamics.

Summary
Assuring an appropriate maintenance of ballasted railway track is crucial to keep the safe rolling of increasing train traffic. The lateral resistance of the ballasted track must be kept above a critical level to avoid lateral buckling of the rails. Railway maintenance procedures of tamping and stabilisation have an impact on this resistance. The aim of this paper is to analyse this impact by using the numerical method called the discrete element method and more particularly its non-smooth contact dynamic approach. The effects of the maintenance procedures are presented in terms of compaction, settlement and lateral resistance and the correlation between them.

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