Research Article
Research on Optimization of Large Flow Hydraulic Punching Process in Zhaozhuang Mine
Table 1
Test parameters in the first punching area.
| Borehole number | Quality of discharge (t) | Jet pressure (MPa) | Jet flow (L/min) |
| 1-1# | 4 | 15 | 208 | 2-1# | 4.6 | 16 | 215 | 3-1# | 3 | 16 | 215 | 4-1# | 5 | 17 | 221 | 5-1# | 3.5 | 15 | 208 | 6-1# | 6 | 17 | 221 |
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