Analysis of Textured Geomembrane–Soil Interface Strength to Mining Applications

In mining, due to the high environmental responsibility and load supported, geomembrane-soil interface must guarantee parameters (such as friction angle adhesion) that contribute stability of barrier system. The use a textured High-Density Polyethene (HDPE) geomembrane, known structured guarantees uniformity in asperity height manufacturing process (flat-die). present work presents results direct shear tests carried out for liner project mining company, where processing bauxite, primary natural source aluminum, is out. were performed with geomembrane different heights, two soil types representative site (in saturated dry conditions). showed similar values peak resistance residual resistance. No influence on was observed, which suggests need evaluate other texture characteristics. perform any project, especially stands