Research Article
FE Analysis of Rock with Hydraulic-Mechanical Coupling Based on Continuum Damage Evolution
Table 1
Physical parameters of model.
| Parameter | Value |
| Young’s modulus, E (GPa) | 16.32 | Poisson’s ratio, | 0.33 | Biot coefficient, | 0.79 | Drucker-Prager constant, | 0.29 | Gas density, (kg/m3) | 0.717 | Damage factor, | 1.0 | Permeability damage coefficient, | 0.1 | Initial porosity, | 0.019 | Initial permeability, (md) | 1.9E2 | Motion viscosity coefficient, (Pa⋅s) | 1.84E − 5 | Compressive strength, (MPa) | 103 | Tensile strength, (MPa) | 7.5 |
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