Research Article
Stability Analysis of Underground Multicavities in Bench Blasting Vibration
Table 2
Summary of four bench blast tests.
| Test number | Actual charge mass (kg) | Distance (m) | Point number | PPV (m/s) | Resultant velocity (m/s) | PF (Hz) | X | Z | Y | X | Z | Y |
| 1 | 380 | 37(A) | 1 | 0.16 | 0.11 | 0.12 | 0.16 | 17 | 20 | 22 | | 380 | 80(B) | 2 | 0.06 | 0.03 | 0.03 | 0.05 | 5 | 4 | 7 | 2 | 400 | 29(A) | 1 | 0.25 | 0.14 | 0.17 | 0.26 | 23 | 19 | 30 | | 400 | 37(B) | 2 | 0.17 | 0.11 | 0.11 | 0.17 | 17 | 17 | 24 | 3 | 420 | 38(A) | 1 | 0.18 | 0.13 | 0.07 | 0.20 | 18 | 13 | 17 | | 420 | 80(B) | 2 | 0.07 | 0.04 | 0.04 | 0.06 | 7 | 6 | 8 | 4 | 460 | 45(A) | 1 | 0.13 | 0.09 | 0.11 | 0.15 | 12 | 13 | 16 | | 460 | 80(B) | 2 | 0.08 | 0.05 | 0.05 | 0.08 | 8 | 6 | 9 |
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