Performance assessment of geocell-reinforced subballast: Modeling and design implications

Ngo, NT; Indraratna, B; Biabani, MM

Performance assessment of geocell-reinforced subballast: Modeling and design implications

Ngo, NT Indraratna, B

Biabani, MM

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Publisher:: AMER SOC CIVIL ENGINEERS
Publication Type:: Conference Proceeding
Citation:: Geotechnical Special Publication, 2017, 0, (GSP 277), pp. 374-383
Issue Date:: 2017-01-01

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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	Biabani, MM
dc.contributor.editor	Brandon, TL
dc.contributor.editor	Valentine, RJ
dc.date	2017-03-12
dc.date.accessioned	2022-04-28T01:28:17Z
dc.date.available	2022-04-28T01:28:17Z
dc.date.issued	2017-01-01
dc.identifier.citation	Geotechnical Special Publication, 2017, 0, (GSP 277), pp. 374-383
dc.identifier.isbn	9780784480441
dc.identifier.issn	0895-0563
dc.identifier.uri	http://hdl.handle.net/10453/156730
dc.description.abstract	This paper presents a study of the load-deformation behavior of geocell-stabilised subballast subjected to cyclic loads using a large-scale track process simulation apparatus and numerical modelling. The tests and numerical simulations were conducted to mimic the actual track conditions. Subjected to a given frequency and cyclic loads the predicted load-deformation behavior of the subballast with and without geocell inclusions match reasonably with those measured in the laboratory, and show that geocell could effectively decrease the lateral and axial deformations of the reinforced subballast. The results also provide an insight to design of rail tracks capturing the roles of geocell in decreasing lateral deformation of subballast. Additionally, the numerical modelling carried out in this study can be applied in the preliminary design of track substructure where a wide range of subballast aggregates and geocell mattresses with varying strengths and stiffness can be considered.
dc.language	en
dc.publisher	AMER SOC CIVIL ENGINEERS
dc.relation.ispartof	Geotechnical Special Publication
dc.relation.ispartof	3rd Conference on Geotechnical Frontiers
dc.relation.ispartofseries	Geotechnical Special Publication
dc.relation.isbasedon	10.1061/9780784480441.039
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Performance assessment of geocell-reinforced subballast: Modeling and design implications
dc.type	Conference Proceeding
utslib.citation.volume	0
utslib.location.activity	Orlando, FL
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	2022-04-28T01:28:16Z
pubs.finish-date	2017-03-15
pubs.issue	GSP 277
pubs.publication-status	Published
pubs.start-date	2017-03-12
pubs.volume	0
utslib.citation.issue	GSP 277

Abstract:

This paper presents a study of the load-deformation behavior of geocell-stabilised subballast subjected to cyclic loads using a large-scale track process simulation apparatus and numerical modelling. The tests and numerical simulations were conducted to mimic the actual track conditions. Subjected to a given frequency and cyclic loads the predicted load-deformation behavior of the subballast with and without geocell inclusions match reasonably with those measured in the laboratory, and show that geocell could effectively decrease the lateral and axial deformations of the reinforced subballast. The results also provide an insight to design of rail tracks capturing the roles of geocell in decreasing lateral deformation of subballast. Additionally, the numerical modelling carried out in this study can be applied in the preliminary design of track substructure where a wide range of subballast aggregates and geocell mattresses with varying strengths and stiffness can be considered.

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http://hdl.handle.net/10453/156730