Abstract
Liner system used in waste landfill has tendency to be built as composite of geosynthetics like geomembranes and geotextiles. When it is used on side slope, driving forces from cover soil and/or vehicle create draw down of liner. In order to develop a practical procedure by which tensile force carried by each layer can be estimated, 4-layered shearing tests were conducted. As a result, it was found that the 2nd layer could create tensile force even when a frictional coefficient on the top interface was equal to that on the bottom interface. Based on theory of elasticity, an iteration procedure estimating tensile force is also proposed which considers relative displacement between components of layers.
