...J. Lin; T. D. Stark; A. Idries; S. Choi This paper provides insight into the causes of post-peak strength loss for textured geomembrane (GMX) and nonwoven geotextile (NGT) interfaces. The NGT can be part of a geosynthetic drainage composite (GDC) or a stand-alone NGT. The study used ring shear...

... suggests a method to estimate the residual interface strength from direct shear test results, which provides a better estimate of field interface strengths. The shear stres–displacement relationship from ring shear tests fits a power function, which can be used to extrapolate direct shear test results...

...G. Xu; J. Shi; Z. Liu; H. Zhang; Y. Gu Geotextile and geomembrane are widely used in landfill liner systems, but the relationship between geomembrane roughness and geotextile/geomembrane interface residual shear strength remains to be studied. In this paper, by using a large-scale ring shear...