Research Article

Stability Charts for Pseudostatic Stability Analysis of 3D Homogeneous Soil Slopes Using Strength Reduction Finite Element Method

Table 3

Comparisons between calculated results of the FOS derived from this study and the upper- and lower-bound solutions presented by Li et al. [8] for the example slope.

MethodSafety factorW/H = 1.0W/H = 2.0W/H = 3.0W/H = 5.0W/H = 102D

Chart solution (present study)F/tan φ5.314.544.314.144.033.75
F1.421.221.151.111.081.00
Numerical upper bound [8]F/tan φ5.354.554.254.203.80
F1.441.221.141.131.02
Numerical lower bound [8]F/tan φ4.754.053.953.803.70
F1.271.091.061.020.99