Abstract

Aspects in Mining & Mineral Science

Model Study of Slope Stability in Open Pit by Numerical Modeling Using the Finite Element Method

Submission: January 23, 2018; Published: March 15, 2018

Volume1 Issue3
March 2018

Abstract

Open pit slope stability analysis has been performed to assess the slope deformation, state of stresses at critically instable failure zones, different failure modes and safe functional design of excavated slopes using the numerical modeling technique as finite element method. In the evaluation of slopes, the factor of safety values still remain the main indexes for finding out how close or far slopes are from failure. The evaluation can be done my means of numerical methods such as the finite element method. In the finite element method, the latter analysis, the so-called shear strength reduction (SSR) technique can be applied. The angle of dilatancy, soil modulus or the solution domain size is not critical parameters in this technique. The safety factor can be obtained, assuming a Mohr-Coulomb failure criterion, by reducing the strength parameters incrementally, and starting from unfactored values. In this paper we have based our study on element modeling finished using the software Plaxis, the model used is that of Mohr-Coulomb.

Keywords: slope stability; Finite element method; Safety factor; Lafarge career

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