Table 1: Parameters of validation 2.

ParametersValue

Time step, (s)
Injection pressure (MPa)0.8
Rock parameters
 Bulk density, (kg/m3)1100
 Young’s modulus, (GPa)4.0
 Poisson’s ratio, 0.3
Joint element parameters
 Tensile strength, (MPa)0.3
 Cohesion, (MPa)1.0
 Friction angle, (°)32
 Energy release rate, , (J/m2)1.0, 10.0
Fluid parameters
 Bulk modulus of fluid, (GPa)2.2
 Viscosity, μ (Pa·s)0.001
 Initial value of aperture, (m)