Improvement of rail track subgrade using stone columns combined with geosynthetics

Fatahi, B; Khabbaz, H; Le, TM

Improvement of rail track subgrade using stone columns combined with geosynthetics

Fatahi, B

Khabbaz, H

Le, TM

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Publication Type:: Conference Proceeding
Citation:: Advances in Transportation Geotechnics II - Proceedings of the 2nd International Conference on Transportation Geotechnics, ICTG 2012, 2012, pp. 202 - 206
Issue Date:: 2012-10-19

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Field	Value	Language
dc.contributor.author	Fatahi, B https://orcid.org/0000-0002-7920-6946	en_US
dc.contributor.author	Khabbaz, H https://orcid.org/0000-0001-6637-4601	en_US
dc.contributor.author	Le, TM	en_US
dc.date.issued	2012-10-19	en_US
dc.identifier.citation	Advances in Transportation Geotechnics II - Proceedings of the 2nd International Conference on Transportation Geotechnics, ICTG 2012, 2012, pp. 202 - 206	en_US
dc.identifier.isbn	9780415621359	en_US
dc.identifier.uri	http://hdl.handle.net/10453/26111
dc.description.abstract	This study seeks to identify the effectiveness of ground improvement using stone columns in controlling settlement of soft soils when placed under the dead loads of the rail structure and the large live loads of freight trains. The employed numerical study assesses the relationship between the column position in the track cross section and the overall settlement of the ballasted rail formation. The numerical results show that the overall settlement of the track reduces significantly with the use of stone columns close to the centre of the track and not just under the rail. In addition, application of one layer of geogrids between sub-ballast and sub-grade assists to reduce the maximum settlement of track decreasing the future maintenance costs. © 2012 Taylor & Francis Group.	en_US
dc.relation.ispartof	Advances in Transportation Geotechnics II - Proceedings of the 2nd International Conference on Transportation Geotechnics, ICTG 2012	en_US
dc.title	Improvement of rail track subgrade using stone columns combined with geosynthetics	en_US
dc.type	Conference Proceeding
utslib.for	0905 Civil Engineering	en_US
dc.location.activity	Hokkaido, Japan	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.publication-status	Published	en_US

Abstract:

This study seeks to identify the effectiveness of ground improvement using stone columns in controlling settlement of soft soils when placed under the dead loads of the rail structure and the large live loads of freight trains. The employed numerical study assesses the relationship between the column position in the track cross section and the overall settlement of the ballasted rail formation. The numerical results show that the overall settlement of the track reduces significantly with the use of stone columns close to the centre of the track and not just under the rail. In addition, application of one layer of geogrids between sub-ballast and sub-grade assists to reduce the maximum settlement of track decreasing the future maintenance costs. © 2012 Taylor & Francis Group.

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

http://hdl.handle.net/10453/26111