Multifield Environmental Analysis and Hazards Prevention of Steeply Inclined Deep Coal Mining

<div>Blast hole layout of precracking suspended roof. (a) Stereogram of blasthole arrangement; (b) layout of blasting holes in south roadway; (c) layout of blasting holes in blasting chamber; (d) layout of blasting holes in winch room.</div>

Advances in Civil Engineering

fig11

Figure 11

Figure 11: Multifield Environmental Analysis and Hazards Prevention of Steeply Inclined Deep Coal Mining 