Research Article
Application of a Microseismic Method of Rock Burst Risk Assessment under Blasting Mining in Ashele Copper Mine
Table 1
Eigenvalues of microseismic indicators for rock burst of different intensities.
| | No. | Microseismic indicator | Aj1 | Aj2 | Aj3 |
| | 1 | Cumulative microseismic events (per week) | 10.375 | 18.889 | 30.200 | | 2 | Microseismic event rate (per 3 days) | 1.917 | 3.630 | 5.135 | | 3 | Cumulative energy lgE (J per week) | 4.757 | 5.204 | 5.757 | | 4 | Energy released rate lgE (J per 3 days) | 3.797 | 4.521 | 4.882 | | 5 | Cumulative apparent volume lgV (m3 per week) | 5.522 | 6.822 | 7.810 | | 6 | Apparent volume rate lgV (m3 per 3 days) | 4.831 | 6.181 | 7.019 |
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