Category | Q | RMR | GSI Calculated/Estimated | |||||||
Value | Class | Value | Class | From Q’ | From RMR | From Hoek-Brown Chart | ||||
Value | Class | Value | Class | Value | Class | |||||
Minimum | 4.17 | Fair | 53 | Fair | 56.85 | Good | 48 | Fair | 45 | Fair |
Maximum | 16.33 | Good | 71 | Good | 69.14 | Good | 66 | Good | 65 | Good |
Average | 9.58 | Fair | 62 | Good | 64.34 | Good | 57 | Good | 55 | Fair |
Mean | 11.92 | Good | 63 | Good | 66.30 | Good | 58 | Good | 56 | Good |