Failure Mechanisms and the Control of a Longwall Face with a Large Mining Height within a Shallow-Buried Coal Seam

<div>Variation in the failure modes of a simulated coal wall as a function of simulated mining height. (a) Mining height 3 m. (b) Mining height 5 m. (c) Mining height 7 m. (d) Mining height 9 m.</div>

Shock and Vibration

fig7

Figure 7

Figure 7: Failure Mechanisms and the Control of a Longwall Face with a Large Mining Height within a Shallow-Buried Coal Seam 