ABSTRACT
Recent studies have provided deterministic and probabilistic design charts for reinforced slopes considering simple geometries and circular failures. The importance of the non-circular Limit Equilibrium Method (LEM) combined with optimization techniques to find the critical failure mechanism when considering the soil properties spatial variability influence has not previously been addressed. In this paper, 2D and 3D deterministic and probabilistic design charts for simple reinforced slopes are presented. The Slide2 and Slide3 software are used. For the probabilistic part, an efficient Response Surface Method is used rather than the methods that are commonly used in literature like the Latin Hypercube Sampling or Monte Carlo simulations. For the 2D case, the Random Limit Equilibrium (RLEM) approach is used to investigate the soil properties spatial variability influence on the Probability of Failure (PF).
