| Factors | Parameter | Unit 1 - Siltstone (roof) - thickness (2.60 m) | Unit 2 - Sandstone - thickness (1.97 m) | ||
Feature | Rating | Feature | Rating | |||
Unit Rating (UR) | Discont. Intensity Rating | RQD | 61.35% | DSR = 31.6 | 43.15% | DSR = 27.9 |
Discont. Shear Strength Rating | Diametral Point Load Test | 0.62 MPa | 32.9 | 1.6 MPa | 51.7 | |
| UCS | 43 MPa | 13.7 | 92 MPa | 21.4 | |
Moisture sensitivity deduction | Slightly sensitive | -3 | - | - | ||
Unit Rating (UR) | - | 42.3 | - | 49.3 | ||
Roof Rating (RR) | RRW 42.3 | |||||
Strong Bed Adjustment (SBADJ) | 0 | |||||
Number of Units Adjustment | 0 | |||||
Groundwater Adjustment | 0 | |||||
Surcharge Adjustment | 0 | |||||
CMRR 42.3 |