A Nonlinear Creep Damage Model of Layered Rock under Unloading Condition

Table 3

Unified creep parameters of rock specimen under different confining pressures.

/GPa	/GPa	/(GPa⋅d)	/GPa	/(GPa⋅d)
Axial Burgers creep model unified parameters (deviatoric stress 60 MPa)
			6.35 × 10^2	78.04
Lateral Burgers creep model unified parameters (deviatoric stress 60 MPa)
			2.20 × 10^3	240.52