Numerical Simulation of Gas-Solid Coupling in Pressure-Relief Gas Drainage of Short-Distance and Underprotective Steeply Inclined Coal Seam Mining

Figure 6

Curve of gas pressure distribution of gas drainage with pressure-relief (strike).

(a) 30 m

(b) 60 m

(c) 90 m

(d) 120 m

(e) 150 m

(f) 270 m