State Judgement Model of the Coal and Rock Medium and Its Engineering Application

Figure 6

Failure process of sample 1#. (a) K = 0. (b) K = 0.02162. (c) K = 0.03784. (d) K = 0.28108. (e) K = 0.38919. (f) K = 1.

(a)

(b)

(c)

(d)

(e)

(f)