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What is hydraulic punching?
Release time:
2022-11-08
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What is water punching
- Hydraulic punching
Hydraulic punching refers to the method of using the water jet jetted by the drilling rig to flush out coal and gas in the outburst coal seam or induce controllable small outburst, so as to cause the coal body to relieve pressure, discharge gas and eliminate the danger of mining outburst. For coal seams with self-spraying capacity, it is safe and reliable when it is used to uncover coal at the stone gate. It is suitable for soft and self-spraying coal seams with serious outburst danger.
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Key words:
What, outburst, coal seam, gas, dangerous, self-injection, punching, hydraulic, punching out, serious
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