| Classification | RMR89 | MRMR | Q | GSI |
| Parameters | Uniaxial compressive strength (UCS) | UCS |
| State of discontinuities |
|
| RQD | RQD | RQD | Structure/connection of well block |
|
| Joint distance | Joint distance | Joint roughness Jr |
|
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| State of the joints | State of the joints | Joint alteration Ja |
|
|
| Groundwater state | Groundwater state | Groundwater reduction factor Jw |
|
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|
|
| Stress reduction factor (SRF) |
|
| Correction factor | Joint orientation | Joint orientation, blasting and alteration |
|
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