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

Table 2

Comparison of the FOS of the four slope cases based on various methods.

Case	Source	FOS
1	2D (average) by Fredlund and Krahn [24]	2.034
	3D-LEM CLARA by Hungr [25]	2.167
	3D LEM by Zhang [23]	2.122
	3D UB-LAM by Chen et al. [26]	2.262
	3D-LEM by Chen et al. [27]	2.187
	3D-FEM by Griffiths and Marquez [12]	2.17
	3D-FEM by Nian et al. [13]	2.15
	3D-FDM by Zhang et al. [14]	2.18
	Present solution	2.133
2	2D (average) by Fredlund and Krahn [24]	1.383
	3D-LEM CLARA by Hungr [25]	1.62
	3D LEM by Zhang [23]	1.553
	3D UB-LAM by Chen et al. [26]	1.717
	3D-LEM by Chen et al. [27]	1.603
	3D-FEM by Griffiths and Marquez [12]	1.58
	3D-FEM ABAQUS by Nian et al. [13]	1.52
	Present solution	1.512
3	2D (average) by Fredlund and Krahn [24]	1.799
	3D-FEM ABAQUS by Nian et al. [13]	1.86
	Present solution	1.813
4	2D (average) by Fredlund and Krahn [24]	1.441
	3D-FEM ABAQUS by Nian et al. [13]	1.298
	Present solution	1.287