Trabajo presentado en el VI Seminario Peruano de GeoingenieríaPor: J. R. Mamani Pilco, Universidad Nacional de Moquegua; J. A. Apaza Pecca, Universidad Nacional del Altiplano Puno, y F. A. Valeriano Nina, Geomechanical Enginner DCR Ingenieros. AbstractThis research article arises from the problem of slope instability in one of the main production banks of the San Jose mine located at UTM coordinates 314,500 E to 314,800 E and 8'272,000 to 8'272,200 N with a length of 400 m. m by 300 m and a maximum height of 85 m. The proposed objective is the 3D evaluation of the behavior of the rock mass and thus find the safety factor using the limit equilibrium methodology in the Plaxis 3D software. The methodology used is the collection of data for the subsequent processing of information and indicate the possible solutions to be provided. The final results are an average variation of 0.5, which represents a 23% difference in the calculation of the safety factor between the 2D and 3D analysis, as well as an optimal angle of 40º.
