Research Article
Numerical Analyses of Fracturing Behavior and Strength of Specimens with Two Parallel Infilled Flaws under Uniaxial Compression
Table 1
Microparameters for simulating rock and grout.
| | Ball | Rock | Grout | Parallel bond | Rock | Grout |
| | Rmin | 0.2 | 0.1 | Modulus (GPa) | 10 | 2 | | Rmax/Rmin | 1.25 | 1.25 | Ratio of normal to shear stiffness | 1.5 | 1.3 | | Density | 2700 | 2500 | Normal strength (MPa) | 13 | 5 | | Contact modulus (GPa) | 10 | 2 | Shear strength (MPa) | 13 | 5 | | Ratio of normal to shear stiffness | 1.5 | 1 | Radius multiplier | 1.0 | 1.0 | | Contact friction coefficient | 0.5 | 0.5 | | | |
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