Research Article
Estimation of Rock Burst Grades Using Rock Mass Strength
Table 7
Estimation results of the ratio of σcm to σc various measurement points.
| | No. of measurement points | | Actual grades of field rock burst |
| | 1 | 0.0499 | Strong | | 2 | 0.0905 | Medium | | 3 | 0.1850 | Slight | | 4 | 0.0424 | Strong | | 5 | 0.0762 | Medium | | 6 | 0.0236 | Strong | | 7 | 0.0378 | Strong | | 8 | 0.0738 | Medium | | 9 | 0.1497 | Medium | | 10 | 0.1068 | Medium | | 11 | 0.1157 | Medium | | 12 | 0.0573 | Strong | | 13 | 0.0932 | Medium | | 14 | 0.1241 | Medium | | 15 | 0.1457 | Medium | | 16 | 0.0745 | Medium | | 17 | 0.1271 | Medium | | 18 | 0.0754 | Medium |
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