Study of the Rock Crack Propagation Induced by Blasting with a Decoupled Charge under High In Situ Stress

Figure 8

Crack patterns under different hydrostatic pressures (K_d = 2.0): (a) 0 MPa; (b) 10 MPa; (c) 20 MPa; (d) 30 MPa.

(a)

(b)

(c)

(d)