ABSTRACT

The finite element method (FEM) has been implemented in the analyses of geotechnical problems for the last three decades. Its application is mainly in the calculation of stresses and displacements in 2-D and in some 3-D situations. Little has been done to explore the many possibilities of employing this method in 3-D analysis to predict soil failure and possible collapse mechanisms. In this paper, some of the capabilities of the FEM in the slope stability analysis are examined and compared with the more traditional limit equilibrium methods. A method of calculating factor of safety from 3-D finite element analysis (FEA) is also described. The method will be used in parametric and geometric studies carried out on soil embankments to verify the influence of factors such as; geometry of embankments, curvature and pore water pressure on values of factor of safety.