SLOPE STABILITY ASSESSMENT USING SLOPE MASS RATING (SMR), KEY BLOCK THEORY, AND KINEMATIC ANALYSIS: A CASE STUDY

In open pit mines, the slope stability of benches, inter-ramps, and overall is vital not only for economy extraction process but also safety personnel equipment. Geological discontinuities, geometry, other factors can induce different failure modes in hard rock masses such as planar, wedge sliding, toppling. Hence, analysis must be carried out carefully using a suitable technique by considering maximum available geotechnical data. This study aims to assess against risk toppling based on mass rating method (SMR), key block theory (KBT), kinematic analysis. As an example, proposed techniques were applied evaluate bench discontinuous at mine Morocco. The results show that sliding planar failure, three methods are identical confirm two benches prone failure. Furthermore, SMR findings revealed one studied slopes. Consequently, identified unstable slopes need reinforced artificial support ensure stabilityю allows improve design assessment mines used road cuts excavated masses, particularly when availability data limited. Keywords: Slope Stability Analysis, Discontinuous Rock Masses, Key Block Theory, Mass Rating, Kinematic Analysis DOI： https://doi.org/10.35741/issn.0258-2724.58.4.45