Ground improvement for rail, port and road infrastructure - From theory to practice

Indraratna, B; Rujikiatkamjorn, C; Nimbalkar, S

Ground improvement for rail, port and road infrastructure - From theory to practice

Indraratna, B Rujikiatkamjorn, C Nimbalkar, S

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Publication Type:: Conference Proceeding
Citation:: Geotechnical Special Publication, 2014, (238 GSP), pp. 1 - 19
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Indraratna, B	en_US
dc.contributor.author	Rujikiatkamjorn, C	en_US
dc.contributor.author	Nimbalkar, S https://orcid.org/0000-0002-1538-3396	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	Geotechnical Special Publication, 2014, (238 GSP), pp. 1 - 19	en_US
dc.identifier.isbn	9780784413401	en_US
dc.identifier.issn	0895-0563	en_US
dc.identifier.uri	http://hdl.handle.net/10453/121147
dc.description.abstract	The transportation infrastructure in coastal regions of Australia has been expanded in recent years due to high population density and increased traffic volume. Such expansions require the application of ground improvement techniques to improve performance and sustainability of the infrastructure. In this paper, innovative ground improvement techniques applicable to railway embankments, port reclamation and embankment fills are discussed. For ballasted rail tracks, the performance of different types of geosynthetics for improving the stability and drainage of railway tracks under high cyclic loading is investigated. Instrumented tracks were conducted to measure the in-situ stresses and deformations of ballast at Bulli, New South Wales (NSW), Australia. Furthermore, stabilization of soft formation soils underneath rail tracks using prefabricated vertical drains (PVDs) is also studied through finite element analyses and field measurements at Sandgate. The innovative use of the mixtures of coal wash (CW) and steel furnace slag (SFS) as the reclamation fill is demonstrated through laboratory and field investigations at the Outer Harbor extension of Port Kembla in Wollongong, NSW. The optimum CW-SFS mixtures that may meet most of the geotechnical specifications are proposed to be used as an effective structural fill. Finally, the design of the combined vacuum and surcharge fill system and the construction of the road embankment are described using a case study from the Pacific Highway upgrade project. Field data are presented and interpreted to demonstrate how the embankments performed during construction in both vacuum and non-vacuum areas. © ASCE 2014.	en_US
dc.relation.ispartof	Geotechnical Special Publication	en_US
dc.relation.isbasedon	10.1061/9780784413401.001	en_US
dc.subject.classification	Geological & Geomatics Engineering	en_US
dc.title	Ground improvement for rail, port and road infrastructure - From theory to practice	en_US
dc.type	Conference Proceeding
utslib.citation.volume	238 GSP	en_US
utslib.for	0905 Civil Engineering	en_US
pubs.embargo.period	Not known	en_US
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/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.issue	238 GSP	en_US
pubs.publication-status	Published	en_US

Abstract:

The transportation infrastructure in coastal regions of Australia has been expanded in recent years due to high population density and increased traffic volume. Such expansions require the application of ground improvement techniques to improve performance and sustainability of the infrastructure. In this paper, innovative ground improvement techniques applicable to railway embankments, port reclamation and embankment fills are discussed. For ballasted rail tracks, the performance of different types of geosynthetics for improving the stability and drainage of railway tracks under high cyclic loading is investigated. Instrumented tracks were conducted to measure the in-situ stresses and deformations of ballast at Bulli, New South Wales (NSW), Australia. Furthermore, stabilization of soft formation soils underneath rail tracks using prefabricated vertical drains (PVDs) is also studied through finite element analyses and field measurements at Sandgate. The innovative use of the mixtures of coal wash (CW) and steel furnace slag (SFS) as the reclamation fill is demonstrated through laboratory and field investigations at the Outer Harbor extension of Port Kembla in Wollongong, NSW. The optimum CW-SFS mixtures that may meet most of the geotechnical specifications are proposed to be used as an effective structural fill. Finally, the design of the combined vacuum and surcharge fill system and the construction of the road embankment are described using a case study from the Pacific Highway upgrade project. Field data are presented and interpreted to demonstrate how the embankments performed during construction in both vacuum and non-vacuum areas. © ASCE 2014.

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http://hdl.handle.net/10453/121147