Research Article
Research on Structural Characteristics of Dynamic Nuclear Zone in Dynamic System of Coal and Rock
Table 4
Monitoring effect of different types of hole.
| Drill number | Maximum impact area (radius) (m) | Energy inversion results (MJ) | Calculation results of dynamic nuclear zone radius (m) | Average value of the radius (m) |
| 1# | 2.0 | 0.60∼1.20 | 1.72∼2.17 | 1.95 | 2# | 3# |
| 4# | 2.6 | 1.31∼2.62 | 2.24∼2.82 | 2.53 | 5# | 6# |
| 7# | 1.6 | 0.30∼0.61 | 1.37∼1.73 | 1.55 | 8# | 9# |
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