Multiphysics Coupling Model of Rock Mass considering Damage and Disturbance and Its Application

Table 1

Partial parameter value.

Parameter type	Parameter name and value
Mechanical parameters of rock mass	Initial modulus of elasticity E0: 30 GPa
	Poisson ratio λ: 0.23
	Initial cohesive force c0: 4 MPa
	Internal friction angle φ: 45°
	Tensile strength σt: 2.35 MPa
Seepage parameters	Dynamic viscosity coefficient μ: 1 × 10^−3 Pa·s
	Initial permeability k0: 1 × 10^−12 m^2
Explosive parameters	Density of explosives ρ0: 1300 kg/m^3
	Explosive velocity : 3800 m/s
	Isentropic coefficient of explosives γ: 3
	Pressure increase coefficient n: 10