| Parameter | Unit 1桽iltstone (roof) | Unit 2桽andstone | ||
| Feature | Rating | Feature | Rating | |
| UCS | 43 MPa | 5.3 | 92 MPa | 9.0 |
| Spacing of Discontinuities | 9.20cm | 6.5 | 8.5 cm | 6.2 |
| RQD | 61.35% | 12.2 | 43.15% | 8.6 |
| Condition of Discontinuities | smooth surface, no infilling, unweathered, separation > 5 mm | 14.0 | smooth surface, hard filling > 5 mm | 9.0 |
| Groundwater Conditions | dry | 15.0 | dry | 15.0 |
| RMR basic (RMRb) | - | 53 | - | 48 |
| Adjustment for Discontinuity Orientations | fair orientation | -5 | - | - |
| RMR adjusted (RMRadjusted) | - | 48 | - | - |
| RMR with blaster damage Adjustment (RMRB) | moderate damage (*0.9) | 43 | - | - |