Numerical modeling of slope stability and Safety factor in open-pit mine and conceivable measures

substantial modifications to the rock mass structure, which could
result in the incidence of landslides in the slope regions of active
mining operations.
Advances in the mining field have generated many stability analysis
methodologies to address this issue. This study aims to assess the
stability of the edges of the Kef Essnoun Phosphate Mine (Algeria)
located in the northwest, where the current mining activities are
taking place.
The numerical modeling of the rock mass, based on extensive field
and laboratory testing for mass characterization, played a crucial
role in determining the potential for danger along the slopes and
steps of the mine. Calculations of safety factors indicated that the
rock mass, with its complex geological conditions characterized by
heterogeneity and weathering, was vulnerable and unstable on the
northern edge, compared with the southern edge, which proved
stable with a safety factor exceeding the required safety margin. In
order to minimize the risk of landslides, we chose a reinforcement
method adapted to our case study.