Research Article
A Study of Blast Vibration Propagation Law under Negative Altitude Terrains
Table 1
Layout parameters of the deep-hole blasting.
| Rock type | Density (t/m3) | Aperture mm | Hole arrangement | Piercing mode | Bench height H (m) |
| Dolomite | 2.8 | 90 | Triangle | Vertical | 6∼8 |
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