Research Article
Stability Charts for Pseudostatic Stability Analysis of Rock Slopes Using the Nonlinear Hoek–Brown Strength Reduction Technique
Table 1
Comparison of the FOS for a given slope with the same values of SR.
| | Input parameters | Case 1 | Case 2 | Case 3 |
| | Β (°) | 45 | 45 | 45 | | GSI | 50 | 50 | 50 | | mi | 15 | 15 | 15 | | kh | 0.1 | 0.1 | 0.1 | | σci (MPa) | 27.6 | 50 | 100 | | γ (kN/m3) | 23 | 25 | 25 | | H (m) | 30 | 50 | 100 |
| | SR (σci/γH) | 40 | 40 | 40 | | Fellenius | 4.26 | 4.29 | 4.42 | | Simplified Bishop | 4.38 | 4.41 | 4.45 | | Simplified Janbu | 4.39 | 4.43 | 4.46 | | Spencer | 4.42 | 4.45 | 4.48 |
| | FOS | | | | | Morgenstern Price | 4.49 | 4.55 | 4.52 | | HB strength reduction technique (present study) | 4.47 | 4.52 | 4.50 |
|
|
