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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