Parameters | Marble | Ultrabasite | Andesite |
Rc (MPa) | 100 - 250 | 50 - 100 | 50 - 100 |
A1 | 12 | 7 | 7 |
RQD | 97 | 94 | 12 |
A2 | 20 | 20 | 3 |
Spacing (mm) | 600 - 2000 | 600 - 2000 | 200 - 600 |
A3 | 15 | 15 | 10 |
Nature of discontinuity | l.i, 1 - 5 mm, r.d, e.r, l.a. | l < 1 m, e.cn.r, t.r, t.a, | l.i, >5 mm, r.d, e.l.r, t.a, |
A4 | 9 | 25 | 6 |
Water contain | Dry | Dry | Dry |
Debiting | Debiting | Debiting | |
A5 | 15 | 15 | 15 |
RMR (∑A)dry | 71 | 82 | 41 |
Qualitydry | Good | Very Good | Fair |
RMRdebiting | 56 | 67 | 26 |