Investigation on the Fracturing Permeability Characteristics of Cracked Specimens and the Formation Mechanism of Inrush Channel from Floor

Figure 4

The relationships of stress, seepage velocity, AE events, and strain of cracked specimens under uniaxial compression. (a) β = 30°; (b) β = 45°; (c) β = 60°.

(a)

(b)

(c)