Mechanism of Increasing the Permeability of Water-Bearing Coal Rock by Microwave Steam Explosion

Figure 2

Pore radius distribution of coal rock samples with different water contents: (a) 0%, (b) 2%, (c) 4%, (d) 6%, and (e) 8%. (f) Variations in the proportion of large, medium, and small pore volumes with water contents.

(a)

(b)

(c)

(d)

(e)

(f)