Probability Methods for Stability Design of Open Pit Rock Slopes: An Overview

The rock slope stability analysis can be performed using deterministic and probabilistic approaches. based on the safety concept factor uses fixed representative values for each input parameter involved without considering variability uncertainty of mass properties. Probabilistic with calculation probability failure instead against is emerging in practice. Such analyses offer a more rational approach to quantify risk by incorporating variables evaluating system. In engineering, involve large scatter geo-structural data varied geomechanical test results. There has been extensive reliability literature, different methods are being employed assessment slope. approaches include Monte Carlo simulation (MCS), point estimate method (PEM), response surface (RSM), first- second-order (FORMs SORMs), first-order second-moment (FOSM). Although these may complicated, they provide complete definition risk. an option most commercial software; however, use this not common This paper provides overview literature some main reliability-based available design open pit mining. To demonstrate its applicability, investigates mine Goldfields region, Western Australia. Two were adopted: two-dimensional limit equilibrium finite element shear strength reduction SLIDE RS2 software, respectively, applying MCS RSM method. example, was Spencer Cuckoo search optimization locate critical slip surface. results obtained compared commented on.