Table 2 Alternating hydraulic pressure injection test parameters.

From: Research on dust and rockburst control technology for coal mining and mathematical correlation

Coal sample number

Confining pressure/MPa

Axial pressure/MPa

Number of cycles

Hydraulic pressure / MPa

1#

10

25

15

9/1

2#

 

3#

30

4#

 

5#

45

6#

 
Back to article page