Research Article
Selection of Optimal Threshold of Generalised Rock Quality Designation Based on Modified Blockiness Index
Table 1
Selected representative values of joint spacing and persistence.
| | Joint spacing classification | Extremely wide | Very wide | Wide | Moderate | Close | Very close | Extremely close |
| | Selected value (m) | 6 | 4 | 1.3 | 0.4 | 0.13 | 0.04 | 0.02 | | Joint persistence classification | Very high | High | Medium | Low | Very low | | | | Selected value (m) | 40 | 20 | 10 | 3 | 1 | | |
|
|
