Research on Optimization of Large Flow Hydraulic Punching Process in Zhaozhuang Mine

Table 3

Test parameters in the first punching area.

Borehole number	Quality of discharge (t)	Jet pressure (MPa)	Jet flow (L/min)
10-1#	5	15	301
11-1#	4.6	16	311
12-1#	4.7	16	311
13-1#	6	17	320
14-1#	5.5	15	301
15-1#	6.5	17	320