Research Article
Damage Depth Test and Numerical Simulation of Stope Floor in Mining Face
Table 1
List of drilling parameters.
| | Bit type | Specifications (mm) | Pressure (kN) | Water volume (m3/h) | Revolutions (r/min) |
| | Coreless bit | 108 | 8-20 | 5-10 | 48-100 | | 73 | 30-60 | 5-10 | 48-100 |
|
|
