Research Article

Experimental Study of Three-Dimensional Propagation of Crack in Transparent Rock Mass

Figure 12

Crack propagation process under 4 MPa water pressure. (a) σ = 32%σmax. (b) σ = 45%σmax. (c) σ = 50%σmax. (d) σ = 90%σmax.
(a)
(b)
(c)
(d)