Numerical analysis: The finite element method is used to calculate the displacement field and stress field of the slope.Hence, the stability coefficient of each element and the sliding surface are calculated by using the rock and soil strength criterion. Practical engineering applications analogy: Comparison of the man-made slope which is designed with the practical slopes. These are experienced to evaluate its stability, produce a reasonable slope and slope angle.
Wedge method: Wedge method is the simplest analysis about the slope stability. Planar slip surface is there in the wedge failure which inclined at the angle to the horizontal. In the case of the planar surface, slip intersection can analyse at the slope face or pass through slope toe. The safety factor for the pseudo-static analysis can be obtained by the following way: The total stress analysis includes the stress parameters of the soil which is often performed for the cohesive soils. In the effective stress analysis, the effective stress soil parameters are often performed for the cohesionless soils. Thus, for the following purpose, the pore water pressures along with the slip surface should be known. The soil layers above the water table and the pore water pressures are assumed to be zero. If the water table is in the horizontal position and soil is below the water table, then the pore water pressure below the water table would be hydrostatic. The flow net in the sloping water table can be estimated as the pore water pressures below the water table. The method is considered as the simplest form for the estimation of the slope stability. The calculation is based on the wedge method. As per the analysis is being undertaken for the study, the analysis clearly explains the structure of the method which is being explained by the study. The enhancement of the mechanism provides the appropriate mechanism for calculating the slope defined failures. The pressure of the water can be easily illustrated for the structural strength.