Conceptual and Computational Perspectives of Sustainable Rail Geotechnics

Indraratna, B; Qi, Y; Ngo, T; Malisetty, R; Rujikiatkamjorn, C

Conceptual and Computational Perspectives of Sustainable Rail Geotechnics

Indraratna, B

Qi, Y

Ngo, T Malisetty, R Rujikiatkamjorn, C

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Publisher:: Springer Nature
Publication Type:: Chapter
Citation:: Proceedings of The 17th International Conference of the International Association for Computer Methods and Advances in Geomechanics, 2026, pp. 7-22
Issue Date:: 2026

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Field	Value	Language
dc.contributor.author	Indraratna, B https://orcid.org/0000-0002-9057-1514
dc.contributor.author	Qi, Y https://orcid.org/0000-0002-3486-2130
dc.contributor.author	Ngo, T
dc.contributor.author	Malisetty, R
dc.contributor.author	Rujikiatkamjorn, C https://orcid.org/0000-0001-8625-2839
dc.date.accessioned	2026-05-20T01:41:24Z
dc.date.available	2026-05-20T01:41:24Z
dc.date.issued	2026
dc.identifier.citation	Proceedings of The 17th International Conference of the International Association for Computer Methods and Advances in Geomechanics, 2026, pp. 7-22
dc.identifier.isbn	9789819559688
dc.identifier.uri	http://hdl.handle.net/10453/195073
dc.description.abstract	Given the rapidly evolving national policies of many countries which actively promote the socio-economic and environmental perspectives of circular economy, the Transport Research Centre at the University of Technology Sydney has launched innovative measures of adopting off-the-road rubber tyres, recycled rubber derivatives and granular by-products from mining and steel industry in novel track design. This paper presents some salient features evolving through mathematical formulations and numerical modelling of ballasted track components incorporating recycled wastes, with special reference to: (i) a coupled rheological and continuum mechanics approach to predict a more accurate track dynamic response to evaluate the most suitable speeds and axle loads for specific substructure conditions under the influence of rubber inclusions, (ii) hybrid Discrete-Finite Element Method (DEM-FEM) simulations to micro-mechanically characterize ballast behavior with and with-out recycled rubber mats with a particular focus on ballast breakage. These computational modelling processes were calibrated and validated through comprehensive laboratory and field tests. The research outcomes provide a deeper understanding of the geotechnical effectiveness and performance enhancement of novel ballast tracks that incorporate blended waste materials.
dc.language	en
dc.publisher	Springer Nature
dc.relation.ispartof	Proceedings of The 17th International Conference of the International Association for Computer Methods and Advances in Geomechanics
dc.relation.isbasedon	10.1007/978-981-95-5969-5_2
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://dx.doi.org/10.1007/978-981-95-5969-5_2
dc.title	Conceptual and Computational Perspectives of Sustainable Rail Geotechnics
dc.type	Chapter
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Transport Research Centre (TRC)
utslib.copyright.status	open_access	*
dc.date.updated	2026-05-20T01:41:16Z
pubs.publication-status	Published

Abstract:

Given the rapidly evolving national policies of many countries which actively promote the socio-economic and environmental perspectives of circular economy, the Transport Research Centre at the University of Technology Sydney has launched innovative measures of adopting off-the-road rubber tyres, recycled rubber derivatives and granular by-products from mining and steel industry in novel track design. This paper presents some salient features evolving through mathematical formulations and numerical modelling of ballasted track components incorporating recycled wastes, with special reference to: (i) a coupled rheological and continuum mechanics approach to predict a more accurate track dynamic response to evaluate the most suitable speeds and axle loads for specific substructure conditions under the influence of rubber inclusions, (ii) hybrid Discrete-Finite Element Method (DEM-FEM) simulations to micro-mechanically characterize ballast behavior with and with-out recycled rubber mats with a particular focus on ballast breakage. These computational modelling processes were calibrated and validated through comprehensive laboratory and field tests. The research outcomes provide a deeper understanding of the geotechnical effectiveness and performance enhancement of novel ballast tracks that incorporate blended waste materials.

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http://hdl.handle.net/10453/195073