Research Article
Effect of the Location of the Detonation Initiation Point for Bench Blasting
Table 1
Critical damage variable in several experiments.
| Sites | Velocity before blasting (m/s) | Velocity after blasting (m/s) | Reduction of velocity | Damage variable |
| Hongyanhe | ā | ā | 53% | 0.78 | Angered Mine | 6250 | 3400 | 47% | 0.72 | Inguri Station | 3750 | 1500 | 60% | 0.84 |
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