The use of multiple models to analyse railway track ground dynamics

P. Chumyen, D. P. Connolly, K. Dong, P. A. Costa, P. J. Soares, P. K. Woodward

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

With the increases in train speed in recent decades, it is important to define the track-ground critical velocity to prevent high track dynamic amplification. This is affected by wave propagation in the soil layers and track supporting the moving load. Therefore, this paper investigates the important variables that influence the critical velocity and dynamic amplification based on three case studies of track-ground dynamic problems, which are: the presence of low stiffness soil layer, track shakedown and soil improvement. Three modelling strategies (analytical, hybrid analytical-numerical and 2.5D numerical) are used to analyse the different track-soil problems. The findings provide a better understanding of critical velocity and dynamic amplification. These are useful when considering a new track-ground design or improving the existing railway lines.

Original languageEnglish
Title of host publicationEURODYN 2020 - 11th International Conference on Structural Dynamics, Proceedings
EditorsManolis Papadrakakis, Michalis Fragiadakis, Costas Papadimitriou
PublisherEuropean Association for Structural Dynamics
Pages2718-2728
Number of pages11
ISBN (Electronic)9786188507210
Publication statusPublished - 2020
Externally publishedYes
Event11th International Conference on Structural Dynamics, EURODYN 2020 - Virtual, Athens, Greece
Duration: 23 Nov 202026 Nov 2020

Publication series

NameProceedings of the International Conference on Structural Dynamic , EURODYN
Volume2
ISSN (Print)2311-9020

Conference

Conference11th International Conference on Structural Dynamics, EURODYN 2020
Country/TerritoryGreece
CityVirtual, Athens
Period23/11/2026/11/20

Bibliographical note

Publisher Copyright:
© 2020 European Association for Structural Dynamics. All rights reserved.

Keywords

  • Analytical modelling
  • Critical Velocity
  • High-speed railway
  • Numerical Modelling
  • Track-ground dynamics behaviour

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