Internal stability of granular filters under static and cyclic loading

Israr, J; Indraratna, B

Internal stability of granular filters under static and cyclic loading

Israr, J Indraratna, B

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Publisher:: American Society of Civil Engineers
Publication Type:: Journal Article
Citation:: Journal of Geotechnical and Geoenvironmental Engineering, 2017, 143, (6), pp. 1-16
Issue Date:: 2017-06-01

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Field	Value	Language
dc.contributor.author	Israr, J
dc.contributor.author	Indraratna, B https://orcid.org/0000-0002-9057-1514
dc.date.accessioned	2022-09-01T04:35:10Z
dc.date.available	2022-09-01T04:35:10Z
dc.date.issued	2017-06-01
dc.identifier.citation	Journal of Geotechnical and Geoenvironmental Engineering, 2017, 143, (6), pp. 1-16
dc.identifier.issn	1090-0241
dc.identifier.issn	1943-5606
dc.identifier.uri	http://hdl.handle.net/10453/161175
dc.description.abstract	Results from a series of hydraulic tests conducted on four compacted granular filters in a one-dimensional rigid cell under static and cyclic loading conditions are presented. It is revealed that cyclic loading promotes premature washout failures in internally unstable and marginal specimens. The constant agitation of granular media combined with internal pore pressure affects the geometrical arrangement of stable primary fabric (coarse fraction). The results prove that washout becomes excessive at higher loading frequencies, such that marginally stable specimens also become increasingly unstable (higher effluent turbidity). The analysis also reveals that the existing criteria developed for static filtration cannot accurately capture the true potential for internal instability of some specimens tested in this study. Consequently, a revised geometrical approach is proposed that incorporates cyclic conditions and demarcates a more distinct boundary between internally stable and unstable soils. A broad experimental database adopted from published studies for validation showed a close agreement with the proposed approach.
dc.language	English
dc.publisher	American Society of Civil Engineers
dc.relation.ispartof	Journal of Geotechnical and Geoenvironmental Engineering
dc.relation.isbasedon	10.1061/(ASCE)GT.1943-5606.0001661
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0907 Environmental Engineering
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Internal stability of granular filters under static and cyclic loading
dc.type	Journal Article
utslib.citation.volume	143
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental 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
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-09-01T04:35:06Z
pubs.issue	6
pubs.publication-status	Published
pubs.volume	143
utslib.citation.issue	6

Abstract:

Results from a series of hydraulic tests conducted on four compacted granular filters in a one-dimensional rigid cell under static and cyclic loading conditions are presented. It is revealed that cyclic loading promotes premature washout failures in internally unstable and marginal specimens. The constant agitation of granular media combined with internal pore pressure affects the geometrical arrangement of stable primary fabric (coarse fraction). The results prove that washout becomes excessive at higher loading frequencies, such that marginally stable specimens also become increasingly unstable (higher effluent turbidity). The analysis also reveals that the existing criteria developed for static filtration cannot accurately capture the true potential for internal instability of some specimens tested in this study. Consequently, a revised geometrical approach is proposed that incorporates cyclic conditions and demarcates a more distinct boundary between internally stable and unstable soils. A broad experimental database adopted from published studies for validation showed a close agreement with the proposed approach.

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http://hdl.handle.net/10453/161175