Research Article
Analysis of the Cavity Formation Mechanism of Wedge Cut Blasting in Hard Rock
| No. | Hole length (cm) | Advance per round (cm) | Utilization rate of boreholes (%) | Average value (%) |
| 1 | 300 | 278 | 92.7 | 91.6 | 2 | 300 | 275 | 91.7 | 3 | 300 | 273 | 91.0 | 4 | 300 | 278 | 92.7 | 5 | 300 | 267 | 89.0 | 6 | 300 | 280 | 93.3 | 7 | 300 | 273 | 91.0 | 8 | 300 | 276 | 92.0 | 9 | 300 | 275 | 91.7 | 10 | 300 | 275 | 91.7 | 11 | 300 | 277 | 92.3 | 12 | 300 | 271 | 90.3 |
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