Interface Behavior Analysis of Different Geomembrane Liner Systems Based on PIV Techniques

The interfacial friction performance of the liner system has an important influence on overall stability modern landfills, but interface using conventional geomembranes may have problems such as shear failure and slip along system. Accordingly, concept a ribbed geomembrane was proposed. Based laboratory model tests, variation laws p–s curves additional stress sand were studied under different values shape, rib spacing, height. A series particle image velocimetry (PIV) analyses particles performed to provide insight into reinforcement mechanism results indicated that could obviously improve compared with smooth geomembrane. formed indirect area in specific range. optimal spacing height beneficial reduce settlement upper redistribution particles.