Reliability analysis of stability to sliding of earthen embankment under seismic effect

In this study, we are interested in the reliability analysis of stability to sliding of an homogeneous embankment realized with local materials. Modified Fellenius method, taking into account seismic effect and saturation line is used to define the limit state function. The failure probability of the embankment upstream slope, to the limit state of sliding, is evaluated by classical Monte Carlo simulation. The considered random variable in this probabilistic analysis is the acceleration coefficient of the seismic zone which is generated by a lognormal distribution. Matlab© software is used to generate random draws. Finally, the developed approach in this work is applied to an embankment taken among small dams existing in Tizi Ouzou region, Northern Algeria.