Advancement of Rail Ballast Testing Methodologies and Design Implications

Indraratna, B; Ngo, T; Rujikiatkamjorn, C; Ferreira, F

Advancement of Rail Ballast Testing Methodologies and Design Implications

Indraratna, B

Ngo, T Rujikiatkamjorn, C

Ferreira, F

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Publisher:: AMER SOC CIVIL ENGINEERS
Publication Type:: Conference Proceeding
Citation:: Geotechnical Special Publication, 2020, 2020-February, (GSP 316), pp. 355-363
Issue Date:: 2020-01-01

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Field	Value	Language
dc.contributor.author	Indraratna, B https://orcid.org/0000-0002-9057-1514
dc.contributor.author	Ngo, T
dc.contributor.author	Rujikiatkamjorn, C https://orcid.org/0000-0001-8625-2839
dc.contributor.author	Ferreira, F
dc.contributor.editor	Hambleton, JP
dc.contributor.editor	Makhnenko, R
dc.contributor.editor	Budge, AS
dc.date	2020-02-25
dc.date.accessioned	2021-02-26T04:47:34Z
dc.date.available	2021-02-26T04:47:34Z
dc.date.issued	2020-01-01
dc.identifier.citation	Geotechnical Special Publication, 2020, 2020-February, (GSP 316), pp. 355-363
dc.identifier.issn	0895-0563
dc.identifier.uri	http://hdl.handle.net/10453/146483
dc.description.abstract	© 2020 American Society of Civil Engineers. Given the limited capacity of available railway tracks in Australia, to sustain increasingly faster and heavier trains, the development of innovative and sustainable ballasted tracks is essential for Australian transport infrastructure. Upon repeated train loading, ballast aggregates become degraded and fouled owing to the intrusion of external fines either from the subbase or surface, which decreases track drainage potentially leading to track instability. This paper reviews some advancements in testing methodologies and design implications of ballasted tracks stabilized with artificial inclusions, including geocomposites, energy absorbing rubber mats, and end-of-life tires. Measured test data shows that the use of these waste rubber products and geosynthetics provides an appropriate solution for mitigating unacceptable track degradation and for improving sustainable track alignment, apart from reducing the thickness of the ballast layer. Field monitoring data from fully instrumented tracks constructed at Singleton, Australia, is presented and discussed. The outcomes of this study contribute to a better understanding of the performance of reinforced ballasted tracks, which will be imperative for the development of more efficient and cost-effective track designs with enhanced safety and passenger comfort.
dc.language	en
dc.publisher	AMER SOC CIVIL ENGINEERS
dc.relation	http://purl.org/au-research/grants/arc/IC170100006
dc.relation.ispartof	Geotechnical Special Publication
dc.relation.ispartof	2nd Session on Engineering, Monitoring, and Management of Geotechnical Infrastructure at Geo-Congress on Vision, Insight, Outlook
dc.relation.ispartofseries	Geotechnical Special Publication
dc.relation.isbasedon	10.1061/9780784482797.035
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Advancement of Rail Ballast Testing Methodologies and Design Implications
dc.type	Conference Proceeding
utslib.citation.volume	2020-February
utslib.location.activity	Minneapolis, MN
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
utslib.copyright.status	open_access	*
dc.date.updated	2021-02-26T04:47:25Z
pubs.finish-date	2020-02-28
pubs.issue	GSP 316
pubs.publication-status	Published
pubs.start-date	2020-02-25
pubs.volume	2020-February
utslib.citation.issue	GSP 316

Abstract:

© 2020 American Society of Civil Engineers. Given the limited capacity of available railway tracks in Australia, to sustain increasingly faster and heavier trains, the development of innovative and sustainable ballasted tracks is essential for Australian transport infrastructure. Upon repeated train loading, ballast aggregates become degraded and fouled owing to the intrusion of external fines either from the subbase or surface, which decreases track drainage potentially leading to track instability. This paper reviews some advancements in testing methodologies and design implications of ballasted tracks stabilized with artificial inclusions, including geocomposites, energy absorbing rubber mats, and end-of-life tires. Measured test data shows that the use of these waste rubber products and geosynthetics provides an appropriate solution for mitigating unacceptable track degradation and for improving sustainable track alignment, apart from reducing the thickness of the ballast layer. Field monitoring data from fully instrumented tracks constructed at Singleton, Australia, is presented and discussed. The outcomes of this study contribute to a better understanding of the performance of reinforced ballasted tracks, which will be imperative for the development of more efficient and cost-effective track designs with enhanced safety and passenger comfort.

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http://hdl.handle.net/10453/146483