Stabilization of track substructure with geo-inclusions—experimental evidence and DEM simulation

Ngo, NT; Indraratna, B; Rujikiatkamjorn, C

Stabilization of track substructure with geo-inclusions—experimental evidence and DEM simulation

Ngo, NT Indraratna, B

Rujikiatkamjorn, C

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Publisher:: Informa UK Limited
Publication Type:: Journal Article
Citation:: International Journal of Rail Transportation, 2017, 5, (2), pp. 63-86
Issue Date:: 2017-04-03

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Field	Value	Language
dc.contributor.author	Ngo, NT
dc.contributor.author	Indraratna, B https://orcid.org/0000-0002-9057-1514
dc.contributor.author	Rujikiatkamjorn, C https://orcid.org/0000-0001-8625-2839
dc.date.accessioned	2022-07-28T00:08:49Z
dc.date.available	2022-07-28T00:08:49Z
dc.date.issued	2017-04-03
dc.identifier.citation	International Journal of Rail Transportation, 2017, 5, (2), pp. 63-86
dc.identifier.issn	2324-8378
dc.identifier.issn	2324-8386
dc.identifier.uri	http://hdl.handle.net/10453/159230
dc.description.abstract	This article reviews on current knowledge of rail track geomechanics, including several important concepts and topics related to laboratory testing and computational modelling, to study the shear stress-strain and deformation of ballast improved by geosynthetics and recycled rubber mats. The effect that impact loads have on ballast degradation and its mitigation due to resilient synthetic mats (i.e. rubber mats) between the ballast and the subballast is investigated using large-scale impact-testing apparatus. Computational modelling with finite element and discrete element methods are increasingly being used to model ballasted tracks reinforced with geosynthetics to capture the continuum media of formation soils and the discrete nature of ballast aggregates. The article focuses on reviewing previous studies by the University of Wollongong on ballasted track substructure and highlights some practical implications whereby innovation progresses from theory to practice.
dc.language	en
dc.publisher	Informa UK Limited
dc.relation.ispartof	International Journal of Rail Transportation
dc.relation.isbasedon	10.1080/23248378.2017.1279085
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0913 Mechanical Engineering
dc.title	Stabilization of track substructure with geo-inclusions—experimental evidence and DEM simulation
dc.type	Journal Article
utslib.citation.volume	5
utslib.for	0905 Civil Engineering
utslib.for	0913 Mechanical Engineering
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
utslib.copyright.status	closed_access	*
dc.date.updated	2022-07-28T00:08:43Z
pubs.issue	2
pubs.publication-status	Published
pubs.volume	5
utslib.citation.issue	2

Abstract:

This article reviews on current knowledge of rail track geomechanics, including several important concepts and topics related to laboratory testing and computational modelling, to study the shear stress-strain and deformation of ballast improved by geosynthetics and recycled rubber mats. The effect that impact loads have on ballast degradation and its mitigation due to resilient synthetic mats (i.e. rubber mats) between the ballast and the subballast is investigated using large-scale impact-testing apparatus. Computational modelling with finite element and discrete element methods are increasingly being used to model ballasted tracks reinforced with geosynthetics to capture the continuum media of formation soils and the discrete nature of ballast aggregates. The article focuses on reviewing previous studies by the University of Wollongong on ballasted track substructure and highlights some practical implications whereby innovation progresses from theory to practice.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/159230