Charoenwong, C. orcid.org/0000-0003-3640-5336, Connolly, D.P. orcid.org/0000-0002-3950-8704, Dong, K. et al. (3 more authors) (2022) A Multi-model Approach to Analyse Railway Track-Ground Dynamics and Soil Nonlinearity. In: Lecture Notes in Civil Engineering. 4th International Conference on Transportation Geotechnics, 23-26 May 2021, Chicago, United States. Lecture Notes in Civil Engineering, 165 . Springer International Publishing , Cham, Switzerland , pp. 37-48. ISBN 9783030772338
Abstract
An increase in train speed generates amplified track deflection. With higher speed, larger strains are induced within the track and subgrade structures. This results in nonlinear behaviour of material properties, particularly the soil stiffness. In railway engineering, it is challenging to deal with these high levels of amplification because the deep wave propagation within the track and underlying soil structures is complicated. Therefore, this paper investigates the influential variables that cause a significant impact on the dynamic amplification of the railway. Four modelling strategies used to generate findings into the problems of railway track dynamics and track-soil nonlinearity. The four types of model are analytical, combined analytical–numerical, 2.5D finite element and 3D finite element. These four models are used to analyse the cases of homogenous half-space soils, homogenous soils above bedrock, layered soils, low-stiffness soil layers and track-soil nonlinearity. The analysis results provide a better understanding of wave propagation characteristics within the subgrade structures. This can be useful for consideration of the design or improvement of railway track structures and earthworks.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 15 Feb 2024 15:09 |
Last Modified: | 15 Feb 2024 15:09 |
Published Version: | https://link.springer.com/chapter/10.1007/978-3-03... |
Status: | Published |
Publisher: | Springer International Publishing |
Series Name: | Lecture Notes in Civil Engineering |
Identification Number: | 10.1007/978-3-030-77234-5_4 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:209199 |