Mechanical Behavior, Energy Release, and Crack Distribution Characteristics of Water-Saturated Phyllite under Triaxial Cyclic Loading

Figure 13

Failure modes of saturated phyllite (σ₃ is the confining pressure; α is the fracture angle) (a) σ₃ = 5 MPa, α = 68°; (b) σ₃ = 10 MPa, α = 62°; and (c) σ₃ = 20 MPa, α = 53°.

(a)

(b)

(c)