.... The drainage geocomposite/geomembrane interface showed the lowest friction angles, followed by the geotextile/geomembrane and the soil/geomembrane interfaces. Table 2 presents the characteristics of the three soils employed for testing, which were part of the foundation of three landfills in Spain...

..., the measured shear strength values (including the internal and interface shear strength values) depend on the cohesion and friction angle. Here, a novel and efficient mathematical tool for analysing the properties of the bivariate and the correlated geosynthetic shear strength was constructed. The arbitrary...

... to investigate the effects of water content on the shear strength behaviour of sand reinforced with 0.25% randomly distributed glass fibres. The results of the tests suggest that the peak friction angle of the fibre-reinforced sand in moist condition is approximately 3° less than that in dry condition...