Research Article
Acoustic Emission Characteristics and Failure Mechanism of Fractured Rock under Different Loading Rates
Table 1
Microparameters of the rock sample.
| | Microparameters | Values | Remark |
| | Minimum radius (mm) | 0.3 | | | Particle radius ratio | 1.66 | | | Particle density (kg⋅m−3) | 2800 | Uniform distribution | | Particle contact modulus (GPa) | 5.0 | | | Particle stiffness ratio | 3.0 | | | Particle friction coefficients | 0.8 | | | Parallel bond normal strength (MPa) | 80 ± 10 | Normal distribution | | Parallel bond shear strength (MPa) | 160 ± 10 | Normal distribution | | Parallel bond modulus (GPa) | 43.0 | | | Parallel bond stiffness ratio | 3.0 | | | Parallel bond radius multiplier | 1.0 | |
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