Research Article
Experimental and Numerical Investigation on Hydraulic Fracture Propagation Law of Composite Rock Materials considering the Disturbing Stress Effect
Table 1
Physical and mechanical parameters of the cement mortar.
| Porosity (%) | Permeability (mD) | Uniaxial compressive strength (MPa) | Modulus of elasticity (GPa) | Tensile strength (MPa) | Cohesion (MPa) | Angle of internal friction (°) | Fracture toughness (N·mm3/2) |
| 13.79 | 1.13 | 15.85 | 0.92 | 1.65 | 0.30 | 31.29 | 13.23 |
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