Research Article
Experimental Study on the Calibration of Microparameters of Dolomite in the Barun Open-Pit Mine on the Basis of the Parallel Bond Model
Table 2
Main macroscopic and microscopic parameters of the PBM.
| | Macroparameters | Particle microparameters | Bond microparameters |
| | UCS | Uniaxial compressive strength (MPa) | Rmin | Minimum radius of the particle | E̅c | Bond effective modulus (GPa) | | TS | Tensile strength (MPa) | Rmax/Rmin | Radius ratio of the particle | k̅n/k̅s | Bond stiffness ratio (normal-to-shear) | | E | Elasticity modulus (GPa) | ρ | Density of particle (kg/m3) | σ̅c | Bond tensile strength (MPa) | | Poisson’s ratio | Ec | Effective modulus (GPa) | c̅ | Bond cohesion (MPa) | | θ | Internal friction angle/(°) | kn/ks | Stiffness ratio (normal-to-shear) | ϕ | Bond friction angle/(°) | | C | Cohesive strength (MPa) | μ | Friction coefficient | λ | Bond radius multiplier |
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