Stability factors γ H/c for slopes in geomaterial with φ = 30°
| B/H | Mechanism | Slope inclination angle β | |||
|---|---|---|---|---|---|
| 45° | 60° | 75° | 90° | ||
| 0·5 | Wedgea | 190·75 | 68·34 | 38·88 | 26·62 |
| M-Cb | 121·81 | 46·51 | 27·71 | 20·24 | |
| T-Cc | 119·84 | 45·31 | 26·85 | 19·24d | |
| 0·6 | Wedgea | 172·20 | 60·87 | 34·31 | 23·27 |
| M-Cb | 108·38 | 39·45 | 23·72 | 16·34 | |
| T-Cc | 105·52 | 37·68 | 21·68 | 15·18d | |
| 0·8 | Wedgea | 150·01 | 51·82 | 28·74 | 19·18 |
| M-Cb | 95·74 | 33·17 | 18·49 | 12·43 | |
| T-Cc | 92·52 | 31·16 | 16·89 | 11·28 | |
| 1 | Wedgea | 137·58 | 46·66 | 25·54 | 16·81 |
| M-Cb | 89·51 | 30·28 | 16·58 | 10·89 | |
| T-Cc | 85·98 | 28·20 | 14·90 | 9·39 | |
| 1·5 | Wedgea | 122·89 | 40·40 | 21·59 | 13·85 |
| M-Cb | 82·50 | 27·07 | 14·46 | 9·24 | |
| T-Cc | 78·47 | 24·78 | 12·69 | 7·69 | |
| 2 | Wedgea | 116·82 | 37·72 | 19·87 | 12·54 |
| M-Cb | 79·47 | 25·79 | 13·56 | 8·55 | |
| T-Cc | 75·17 | 23·29 | 11·72 | 6·88 | |
| 3 | Wedgea | 112·02 | 35·55 | 18·45 | 11·44 |
| M-Cb | 76·87 | 24·53 | 12·77 | 7·94 | |
| T-Cc | 72·14 | 21·94 | 10·85 | 6·21 | |
| 5 | Wedgea | 109·38 | 34·32 | 17·63 | 10·79 |
| M-Cb | 74·68 | 23·59 | 12·19 | 7·50 | |
| T-Cc | 69·89 | 20·94 | 10·22 | 5·71 | |
| 2D | M-Cb | 71·88 | 22·39 | 11·42 | 6·92 |
| T-Cc | 66·76 | 19·57 | 9·35 | 5·12 | |
| Mechanism | Slope inclination angle | ||||
|---|---|---|---|---|---|
| 45° | 60° | 75° | 90° | ||
| 0·5 | Wedge | 190·75 | 68·34 | 38·88 | 26·62 |
| M-C | 121·81 | 46·51 | 27·71 | 20·24 | |
| T-C | 119·84 | 45·31 | 26·85 | 19·24 | |
| 0·6 | Wedge | 172·20 | 60·87 | 34·31 | 23·27 |
| M-C | 108·38 | 39·45 | 23·72 | 16·34 | |
| T-C | 105·52 | 37·68 | 21·68 | 15·18 | |
| 0·8 | Wedge | 150·01 | 51·82 | 28·74 | 19·18 |
| M-C | 95·74 | 33·17 | 18·49 | 12·43 | |
| T-C | 92·52 | 31·16 | 16·89 | 11·28 | |
| 1 | Wedge | 137·58 | 46·66 | 25·54 | 16·81 |
| M-C | 89·51 | 30·28 | 16·58 | 10·89 | |
| T-C | 85·98 | 28·20 | 14·90 | 9·39 | |
| 1·5 | Wedge | 122·89 | 40·40 | 21·59 | 13·85 |
| M-C | 82·50 | 27·07 | 14·46 | 9·24 | |
| T-C | 78·47 | 24·78 | 12·69 | 7·69 | |
| 2 | Wedge | 116·82 | 37·72 | 19·87 | 12·54 |
| M-C | 79·47 | 25·79 | 13·56 | 8·55 | |
| T-C | 75·17 | 23·29 | 11·72 | 6·88 | |
| 3 | Wedge | 112·02 | 35·55 | 18·45 | 11·44 |
| M-C | 76·87 | 24·53 | 12·77 | 7·94 | |
| T-C | 72·14 | 21·94 | 10·85 | 6·21 | |
| 5 | Wedge | 109·38 | 34·32 | 17·63 | 10·79 |
| M-C | 74·68 | 23·59 | 12·19 | 7·50 | |
| T-C | 69·89 | 20·94 | 10·22 | 5·71 | |
| 2D | M-C | 71·88 | 22·39 | 11·42 | 6·92 |
| T-C | 66·76 | 19·57 | 9·35 | 5·12 | |
Wedge mechanism
Right circular cone mechanism and M-C strength envelope
Right circular cone mechanism with tension cut-off strength envelope
Face failure mechanism