Capillary Tube Model for Internal Stability of Cohesionless Soil
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 139, Issue 5
Abstract
Kovacs’ criterion to assess the potential for internal instability of cohesionless soils that was proposed, but never tested experimentally, is verified with reference to a database of laboratory test results. The inherent margin of safety is described, and a threshold boundary between stable and potentially unstable gradations is established. A variation on the method is then presented, termed the simplified-Kovacs criterion.
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Acknowledgments
Funding for research on internal stability of soils at the University of British Columbia is provided by the NSERC and the British Columbia Hydroelectric Power Authority.
References
Aberg, B. (1993). “Washout of grains from filtered sand and gravel materials.” ASCE J. of Geotech. Eng, 119(1), 36–53.
Aberg, B. (1996). “Void sizes in granular soils.” J. of Geotech. Eng, 122(9), 36–53.
Canadian Dam Association (CDA) (2007). Technical Bulletin CDA-TB08: Geotechnical considerations for dam safety, CDA, Toronto.
Fannin, R. J., and Moffat, R. (2006). “Observations on internal stability of granular soils.” Geotechnique, 56(4), 497–500.
Honjo, Y., Haque, M. A., and Tsai, K. A. (1996). “Self-filtration behaviour of broadly and gap-graded cohesionless soils.” Proc., Geofilters’96, J. Lafleur and A. Rollin, eds., BiTech Publishers, Montreal, 227–236.
Indraratna, B., Nguyen, V. T., and Rujikiatkamjorn, C. (2011). “Assessing the potential of internal erosion and suffusion of granular soils.” J. Geotech. Geoenviron. Eng., 137(5), 550–554.
International Commission on Large Dams (1994). ICOLD Bulletin 95–Embankment dams: Granular filters and drains – Review and recommendations, Paris.
Kenney, T. C., and Lau, D. (1985). “Internal stability of granular filters.” Can. Geotech. J., 22(2), 215–225.
Kenney, T. C., and Lau, D. (1986). “Internal stability of granular filters: Reply.” Can. Geotech. J., 23(3), 420–423.
Kezdi, A. (1979). Soil physics – Selected topics, Elsevier Scientific, Amsterdam, Netherlands.
Kovacs, G. (1981). Seepage hydraulics, Elsevier Scientific, Amsterdam, Netherlands.
Lafleur, J., Mlynarek, J., and Rollin, A. L. (1989). “Filtration of broadly graded cohesionless soils.” J. Geotech. Engrg., 115(12), 1747–1768.
Li, M. (2008). “Seepage-induced failure of widely-graded cohesionless soils.” Ph.D. thesis, Dept. of Civil Eng., Univ. of British Columbia, Vancouver, BC.
Li, M., and Fannin, R. J. (2008). “Comparison of two criteria for internal stability of granular soil.” Can. Geotech. J., 45(9), 1303–1309.
Liu, J. (2005). Seepage control of earth-rock dams theoretical basis, engineering experiences and lessons, China Waterpower Press, Beijing (in Chinese).
Moffat, R. (2005). “Experiments on the internal stability of widely graded cohesionless soils.” Ph.D. thesis, Dept. of Civil Eng., Univ. of British Columbia, Vancouver, BC.
Moffat, R. M., and Fannin, R. J. (2011). “A hydromechanical relation governing the internal stability of cohesionless soil.” Can. Geotech. J., 48(3), 413–424.
Ronnquist, H. (2010). “Predicting surfacing internal erosion in moraine core dams.” Licentiate thesis, Royal Institute of Technology, Stockholm, Sweden.
Skempton, A. W., and Brogan, J. M. (1994). “Experiments on piping in sandy gravels.” Geotechnique, 44(3), 449–460.
Vallejo, L. E. (2001). “Interpretation of the limits in shear strength in binary granular mixtures.” Can. Geotech. J., 38(5), 1097–1104.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 139 • Issue 5 • May 2013
Pages: 831 - 834
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Oct 7, 2011
Accepted: Jun 14, 2012
Published online: Apr 15, 2013
Published in print: May 1, 2013
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