@article{10902/9841,
year = {2015},
month = {10},
url = {http://hdl.handle.net/10902/9841},
abstract = {This paper’s scope is the shear interaction mechanisms of three critical geosynthetic interfaces (geotextile/geomembrane; drainage geocomposite/geomembrane and soil/geomembrane) typically used for lined containment facilities such as landfills. A large direct shear machine was used to carry out 159 geosynthetic interface tests. The results showed strain softening behaviour, a very small dilatancy, 0.1–1 mm, and non-linear failure envelopes at normal stress range of 25–500 kPa. The three types of interfaces present the same main interaction mechanisms: interlocking and friction. For geotextile/geomembrane and drainage geocomposite/geomembrane interfaces, the higher the asperity height, the higher the interface shear strength.Whereas for soil/geomembrane interfaces, the higher the soil shear strength, the higher the interface shear strength. The drainage geocomposite/geomembrane interface showed the lowest friction angles, followed by the geotextile/geomembrane and the soil/geomembrane interfaces.},
publisher = {Thomas Telford},
publisher = {Geosynthetics International 
Vol. 22 (5), October, 2015, pp. 355-365},
title = {Frictional behaviour of three critical geosynthetic interfaces},
author = {Cañizal Berini, Jorge and Konietzky, H. and Martínez Bacas, Ana Belén},
}