Computational Technology Resources - CCC

M. Perez Diaz, J.M. Mayoral, C. Figueroa, N. Olivera, S. Tepalcapa, "Performance Evaluation of Single and Double Track Configurations Through 3D Numerical Simulations", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 18.5, 2024, doi:10.4203/ccc.7.18.5

Keywords: numerical modelling, safety factors, track support performance, finite difference models, double track configurations, ballasted track.

Abstract

This paper presents the results of three-dimensional finite difference numerical models developed to evaluate the behaviour of the materials constituting the track support, considering single and double track configurations. The parameters of strength and deformability of the sub-ballast, subgrade, and embankment layers were varied in the models. Findings indicate that the double-track configuration is the most unfavourable for the analysed scenarios. The minimum and average safety factors obtained for the sub-ballast and subgrade layers are relatively low, implying an overstress and significant long-term deformations. The developed models were able to simulate satisfactorily the real stress distribution and clearly showed that the permanent deformation due to loading acting on the track is influenced by the stiffness of the support system.

download the full-text of this paper (PDF, 12 pages, 1386 Kb)

go to the previous paper
go to the next paper
return to the table of contents
return to the volume description

	Computational & Technology Resources an online resource for computational, engineering & technology publications
	not logged in - login
Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 7 PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 18.5 Performance Evaluation of Single and Double Track Configurations Through 3D Numerical Simulations M. Perez Diaz, J.M. Mayoral, C. Figueroa, N. Olivera and S. Tepalcapa Institute of Engineering, National Autonomous University of Mexico, Mexico City, Mexico doi:10.4203/ccc.7.18.5 Full Bibliographic Reference for this paper M. Perez Diaz, J.M. Mayoral, C. Figueroa, N. Olivera, S. Tepalcapa, "Performance Evaluation of Single and Double Track Configurations Through 3D Numerical Simulations", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 18.5, 2024, doi:10.4203/ccc.7.18.5 Keywords: numerical modelling, safety factors, track support performance, finite difference models, double track configurations, ballasted track. Abstract This paper presents the results of three-dimensional finite difference numerical models developed to evaluate the behaviour of the materials constituting the track support, considering single and double track configurations. The parameters of strength and deformability of the sub-ballast, subgrade, and embankment layers were varied in the models. Findings indicate that the double-track configuration is the most unfavourable for the analysed scenarios. The minimum and average safety factors obtained for the sub-ballast and subgrade layers are relatively low, implying an overstress and significant long-term deformations. The developed models were able to simulate satisfactorily the real stress distribution and clearly showed that the permanent deformation due to loading acting on the track is influenced by the stiffness of the support system. download the full-text of this paper (PDF, 12 pages, 1386 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
Back to top	©Civil-Comp Limited 2023 - terms & conditions