Numerical Simulation of Parameters Optimization for Goaf Gas Boreholes

Figure 8

Distributional planar graph of gas in gob with different horizontal distances of ground gas extraction. (a) Horizontal distance is 35 m and vertical distance is 16 m. (b) Horizontal distance is 45 m and vertical distance is 16 m. (c) Horizontal distance is 55 m and vertical distance is 16 m.

(a)

(b)

(c)