Research Article
Analysis of the Main Factors Influencing the Dominant Frequency of Blast Vibration
Table 5
Drilling and blasting parameters for the blast in 5# massif.
| Blast site | 5# massif | Experiment | 3# | 4# |
| Blastholes | Multiple | Single | Multiple | Single | Blasthole diameter (mm) | 115 | 115 | 115 | 115 | Blasthole length (m) | 10.6–13.3 | 13.0 | 14.4 | 14.8 | Blasthole spacing (m) | 6.0 | — | 6.1 | — | Row spacing (m) | 3.6 | — | 3.5 | — | Charge diameter (mm) | 90 | 90 | 90 | 90 | Charge weight per hole (kg) | 60–72 | 72 | 84/96/108 | 96 | Stemming length (m) | 4.5 | 4.5 | 5.0 | 5.0 | Number of rows | 5 | — | 6 | — | Number of blastholes | 40 | 1 | 54 | 1 |
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