Fracture Propagation Behavior of Jointed Rocks in Hydraulic Fracturing

Table 1

Physicomechanical parameters of rock and joint employed in simulations.

Parameters	Unit	Rock	Joint
Heterogeneity index (m)	—	2	2
Young’s modulus (E)	GPa	20	3
Possion’s ratio (ν)	—	0.25	0.25
Friction angle (φ)	°	37	37
Compressive strength (fc)	MPa	120	20 (10, 30, 40, 80)
Permeability coefficient (K)	md^−1	0.000864	0.00864