Research Article
Implementation of the Barton–Bandis Nonlinear Strength Criterion into Mohr–Coulomb Sliding Failure Model
Table 4
Rock mass parameters in numerical calculation.
| | Parameters of rock mass | Density (kg/m3) | Bulk modulus (MPa) | Shear modulus (MPa) | Cohesive force (MPa) | Angle of internal friction (°) |
| | Limestone | 2300 | 7.20E+03 | 1.92E+03 | 4.12e3 | 35.0 | | Structural plane strength | Shear stiffness, () | Normal stiffness, () | Joint angle of internal friction, (°) | Joint cohesive force, C (kPa) | | Nonlinear change formula | | = 22.4665 | | | Constant parameters | 10.7 | 10.7 | 14.51 | 5.4 |
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