TECHNICAL NOTES
Apr 1, 2002
Analysis of Critical Hydraulic Gradient for Particle Movement in Filtration
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 128, Issue 4
Abstract
The objective of this paper is to propose an explicit solution for the critical hydraulic gradient required to move a base particle within a pore channel. The particle is assumed to displace when the applied hydrodynamic forces exceed this critical hydraulic gradient. The current analysis is an extension of a previous study (Indraratna and Vafai 1997), where the limit equilibrium analysis was modified to include the effect of drag in the hydrodynamic force component. The theoretical model was examined in the laboratory using fine gravel filters and a cohesionless base soil consisting of very fine river sand.
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References
Kovacs, G. (1981). Seepage hydraulics, Elsevier Scientific, Amsterdam.
Indraratna, B., and Vafai, F.(1997). “Analytical model for particle migration within base soil-filter system.” J. Geotech. Geoenviron. Eng., 123(2), 100–109.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 128 • Issue 4 • April 2002
Pages: 347 - 350
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Nov 7, 2000
Accepted: Aug 18, 2001
Published online: Apr 1, 2002
Published in print: Apr 2002
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Authors
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Buddhima Indraratna, M.ASCE
Professor, Division of Civil Engineering, Univ. of Wollongong, NSW 2522, Australia.
Sujeewa Radampola
Research Fellow, Division of Civil Engineering, Univ. of Wollongong, NSW 2522, Australia.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.