Influence of Effective Pressure on Percolation Rate of Coal

Figure 6

The percolation rate surface of coal. (a) k-T-σ graphs of coal samples. (A) p = 0.3 MPa. (B) p = 0.6 MPa. (C) p = 0.9 MPa. (b) k-p-σ graphs of coal samples. (A) T = 30°C. (B) T = 50°C. (C) T = 70°C.

(a)

(b)