Liquefaction and post-liquefaction resistance of sand reinforced with recycled geofibre

Rasouli, H; Fatahi, B

Liquefaction and post-liquefaction resistance of sand reinforced with recycled geofibre

Rasouli, H Fatahi, B

Permalink

Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Geotextiles and Geomembranes, 2022, 50, (1), pp. 69-81
Issue Date:: 2022-02-01

Closed Access

	Filename	Description	Size
	Liquefaction and post-liquefaction resistance of sand reinforced with recycled geofibre.pdf	Published version	14.23 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Rasouli, H
dc.contributor.author	Fatahi, B https://orcid.org/0000-0002-7920-6946
dc.date.accessioned	2023-04-05T04:46:02Z
dc.date.available	2023-04-05T04:46:02Z
dc.date.issued	2022-02-01
dc.identifier.citation	Geotextiles and Geomembranes, 2022, 50, (1), pp. 69-81
dc.identifier.issn	0266-1144
dc.identifier.issn	1879-3584
dc.identifier.uri	http://hdl.handle.net/10453/169194
dc.description.abstract	The present study provides an insight into the effect of recycled carpet fibre on the mechanical response of clean sand as backfill material subjected to monotonic loading and cyclic loading as well as post-liquefaction resistance of both unreinforced and carpet fibre reinforced soils. To achieve these goals, a series of multi-stage soil element tests under cyclic loading event resulting in liquefaction followed by undrained monotonic shearing without excess pore water pressure dissipation as well as a series of monotonic undrained shear test is conducted. All the specimens are isotropically consolidated under a constant effective confining stress of 100 kPa by considering the effect of cyclic stress ratio and carpet fibre content ranging from 0.25% to 0.75%. The obtained results revealed the efficiency of carpet fibre inclusion in increasing the secant shear modulus and ductility of clean sand under monotonic shearing without previous loading history. The impact of carpet fibre inclusion on the trend of cyclic excess pore water pressure generation and cyclic stiffness degradation was minimal. However, adding carpet fibre significantly improved both liquefaction and post-liquefaction resistances of clean sand. The liquefaction resistance of clean sand, at a constant 15 loading cycles, improved by 26.3% when the soil was reinforced with 0.75% recycled carpet fibre. In addition, the initial shear modulus of the liquefied specimen significantly increased by adding recycled carpet fibre.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Geotextiles and Geomembranes
dc.relation.isbasedon	10.1016/j.geotexmem.2021.09.002
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0915 Interdisciplinary Engineering
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Liquefaction and post-liquefaction resistance of sand reinforced with recycled geofibre
dc.type	Journal Article
utslib.citation.volume	50
utslib.for	0905 Civil Engineering
utslib.for	0915 Interdisciplinary 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
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
pubs.organisational-group	/University of Technology Sydney/Strength - CAMGIS - Centre for Advanced Modelling and Geospatial lnformation Systems
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2023-04-05T04:46:00Z
pubs.issue	1
pubs.publication-status	Published
pubs.volume	50
utslib.citation.issue	1

Abstract:

The present study provides an insight into the effect of recycled carpet fibre on the mechanical response of clean sand as backfill material subjected to monotonic loading and cyclic loading as well as post-liquefaction resistance of both unreinforced and carpet fibre reinforced soils. To achieve these goals, a series of multi-stage soil element tests under cyclic loading event resulting in liquefaction followed by undrained monotonic shearing without excess pore water pressure dissipation as well as a series of monotonic undrained shear test is conducted. All the specimens are isotropically consolidated under a constant effective confining stress of 100 kPa by considering the effect of cyclic stress ratio and carpet fibre content ranging from 0.25% to 0.75%. The obtained results revealed the efficiency of carpet fibre inclusion in increasing the secant shear modulus and ductility of clean sand under monotonic shearing without previous loading history. The impact of carpet fibre inclusion on the trend of cyclic excess pore water pressure generation and cyclic stiffness degradation was minimal. However, adding carpet fibre significantly improved both liquefaction and post-liquefaction resistances of clean sand. The liquefaction resistance of clean sand, at a constant 15 loading cycles, improved by 26.3% when the soil was reinforced with 0.75% recycled carpet fibre. In addition, the initial shear modulus of the liquefied specimen significantly increased by adding recycled carpet fibre.

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

http://hdl.handle.net/10453/169194