Research Article
An Improved Method for Estimating the Strength of Jointed Rock Mass Using Drilling Technology
Table 1
Parameters to consider for the different classification systems [
37].
| Classification systems | RMR | Q | GSI | RMI |
| Parameters | UCS | Joint set number | UCS | UCS | RQD | RQD | Surface condition | Block volume | Joint spacing | Joint roughness | Structure/interlocking of rock blocks | Joint roughness | Joint condition | Joint alternation | Joint alternation | Ground water condition | Joint water reduction factor | Joint size and termination | Stress reduction factor | Adjustment parameters | Joint orientation | | | |
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