The influence of soil particle shape, confining pressure and the amount of relative displacement on the value of the interface friction angle are studied in the laboratory using a ring shear apparatus. Two quartz sands, one angular and the other rounded, with two geomembranes, one soft and the other hard, were used as the interfacing constituents. The geomembrane surface texture before and after shearing is quantified using a profilometer. Test data indicate that the value of the interface friction angle can vary significantly for each of the surfaces investigated. The smooth HDPE geomembrane exhibits distinct peak and residual interface friction angle values that range from 65 to 90% of the friction angle of the contacting sand. The rough HDPE and PVC geomembrane interfaces are shown to mobilize virtually the full friction angle of the contacting sand.
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Research Article|
January 01 1995
Geomembrane Coefficients of Interface Friction Available to Purchase
Y.P. Vaid;
Y.P. Vaid
Department of Civil Engineering, University of British Columbia, Vancouver, B.C., Canada, V6T 1Z4, Telephone: 1/604-822-2204, Telefax: 1/604-822-6901
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N. Rinne
N. Rinne
Transmountain Pipeline, Trans Canada Highway West, Kamloops, B.C., Canada, V1S 1A7, Telephone: 1/604-371-4011, Telefax: 1/604-371-4001
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Publisher: Emerald Publishing
Received:
April 30 1994
Accepted:
December 22 1994
Online ISSN: 1751-7613
Print ISSN: 1072-6349
Industrial Fabrics Association International, 1801 County Road B West, Roseville, Minnesota 55113-4061, USA, Telephone: 1/612-222-2508, Telefax: 1/612-631-9334
1995
Geosynthetics International (1995) 2 (1): 309–325.
Article history
Received:
April 30 1994
Accepted:
December 22 1994
Citation
Vaid Y, Rinne N (1995), "Geomembrane Coefficients of Interface Friction". Geosynthetics International, Vol. 2 No. 1 pp. 309–325, doi: https://doi.org/10.1680/gein.2.0012
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