A New Rock Joint Generation Method and Its Verification in PFC2D

Figure 19

Simulation results of a jointed specimen with a JRC of 18–20 subjected to a normal stress of 3 MPa. (a) Relationships of the shear displacement with the shear stress and fracture number. (b) Relationship between the normal and shear displacement. (c) Fracture characteristics during the shear process (red dots indicate the fracture location). Shear displacement: (i) 0.4 mm; (ii) 0.8 mm; (iii) 1.6 mm; (iv) 2.4 mm; (v) 3.0 mm.

(a)

(b)

(c)