Cracking Behaviors and Mechanical Properties of Rock-Like Specimens with Two Unparallel Flaws under Conventional Triaxial Compression

Figure 4

Crack types in the specimens with different bridge lengths and bridge angles: (a) tensile crack at the open flaw tip; (b) tensile crack at a position that is located close to the open flaw tip; (c) antitensile crack; (d) normal shear crack; (e) coplanar shear crack; (f) far-field crack.

(a)

(b)

(c)

(d)

(e)

(f)