ABSTRACT
A strain-based finite element method is applied to analyze the stability of geotextile reinforced soil slopes that brought to failure under induced gravity using a geotechnical centrifuge. In the numerical method, which is based on the shear strength reduction technique, the hyperbolic stress-strain model and the elasto-plastic joint elements are used to model the backfill and the clay-reinforcement interface, respectively. The results show a good agreement between the physical and numerical models in terms of prediction of prototype equivalent collapse heights and the traces of slip surfaces for both unreinforced and reinforced soil slopes.
