Study on Pressure Relief Effect and Rock Failure Characteristics with Different Borehole Diameters

<div>Stress-strain-acoustic emission counts curves with different borehole diameters: (a) <i>D</i> = 0 mm; (b) <i>D</i> = 6 mm; (c) <i>D</i> = 8 mm; (d) <i>D</i> = 10 mm.</div>

Shock and Vibration

fig5

Figure 5

Figure 5: Study on Pressure Relief Effect and Rock Failure Characteristics with Different Borehole Diameters 