Research Article
An Improved Method for Estimating the Strength of Jointed Rock Mass Using Drilling Technology
Table 2
Comparison of various correlation among the rock mass classification [
4].
| Researchers | Correlation | Estimated parameter |
| Bieniawski [54] | | RMR from Q | Rutledge and Preston [69] | | RMR from Q | Moreno [70] | | RMR from Q | Cameron-Clarke and Budavari [71] | | RMR from Q | Abad et al. [72] | | RMR from Q | Kaiser and Gale [73] | | RMR from Q | Al-Harthi [74] | | RMR from Q | Barton [75] | | RMR from Q | Tugrul [76] | | RMR from Q | Kumar et al. [77] | | RMR from Q | | RMR from RMi | | RMi from Q | | RMi from Q |
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