... consisted of form and waviness along with roughness, appropriate filters were applied to remove form and waviness and measure the roughness of the surfaces. The selection of these filters for different cases and the spatial variability of surface roughness measurements are discussed. The results...

... and different interface strength. This paper summarises the results of a study that quantified changes in the surface roughness of geomembranes as a function of ambient temperature, normal stress, and particle angularity. Surface roughness measurements were made on both virgin and post-shear smooth geomembrane...

... Industrial Fabrics Association International, 1801 County Road B West, Roseville, Minnesota 55113-4061, USA, Telephone: 1/612-222-2508, Telefax: 1/612-631-9334 2002 Geomembrane Strain Surface roughness Interface strength Technical Paper by J.D. Frost, T.E. Zettler, J.T. DeJong, S.W. Lee, and S...

...J.D. Frost; S.W. Lee This paper summarizes the results of a study that used quantitative measures of surface roughness as the basis for investigating the role of topography on the interface shear mechanism of geomembrane-geotextile interfaces. The results show that the interface strength...

... for a given “smooth” geomembrane surface is principally a function of the relative material hardness, the particle size and angularity, the normal stress, and the soil density. When plowing occurs, the geomembrane surface wears, resulting in altered surface roughness and changed interface strength. This paper...

...J.E. Dove; J.D. Frost; P.M. Dove The use of surface roughness measurements for evaluating and predicting the performance of composite geosynthetic structures has become of interest to the civil engineering profession, especially those involved in the design of landfills. This paper introduces...

... friction angle of the contacting sand. KEYWORDS: Geomembranes, Interface Friction, Sands, Surface Roughness. AUTHORS: 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, and N. Rinne, Transmountain...