Serial number | Surrounding rock strength/MPa (x1) | Lateral pressure coefficient (x2) | Temperature/˚C (x3) | Anchoring length /cm (x4) | Ultimate anchorage force/kN (Y) |
1 | 3.00 | 0.80 | 30.00 | 16.00 | 9.75 |
2 | 3.00 | 1.20 | 45.00 | 48.00 | 22.50 |
3 | 3.00 | 1.00 | 60.00 | 32.00 | 10.50 |
4 | 6.00 | 1.20 | 30.00 | 32.00 | 26.25 |
5 | 6.00 | 1.00 | 45.00 | 16.00 | 15.00 |
6 | 6.00 | 0.80 | 60.00 | 48.00 | 28.75 |
7 | 9.00 | 0.80 | 45.00 | 32.00 | 23.25 |
8 | 9.00 | 1.20 | 60.00 | 16.00 | 15.75 |
9 | 9.00 | 1.00 | 30.00 | 48.00 | 38.25 |