Research Article
Experiment and Analysis of Wedge Cutting Angle on Cutting Effect
Table 4
Statistical table of relevant indexes of blasting experiment.
| | Cutting mode | Specimen no. | Hole vertical depth (10−1 m) | Ultra-deep depth (10−1 m) | Cutting depth (10−1 m) | Utilization rate of blast holes (%) | Blasting volume (10−3 m3) | Blasting fragment (mm) | Bulk rate (%) |
| | 65° wedge cutting | I-5 | 2.000 | 0.200 | 1.530 | 85.0 | 7.410 | 49.72 | 48.90 | | 69° wedge cutting | II-6 | 2.000 | 0.200 | 1.611 | 89.5 | 8.215 | 54.02 | 49.20 | | 73° wedge cutting | I-7 | 2.000 | 0.200 | 1.422 | 79.0 | 7.165 | 57.54 | 52.86 | | 77° wedge cutting | I-8 | 2.000 | 0.200 | 1.188 | 66.0 | 5.920 | 86.06 | 66.24 | | 81° wedge cutting | I-9 | 2.000 | 0.200 | 0.000 | 0.00 | 0.000 | ∞ | 100 |
|
|
