Research Article
Discrete Element Simulation Analysis of the Bending and Toppling Failure Mechanisms of High Rock Slopes
Table 5
Rock strength parameters of the 3DEC model.
| | Parameters of block strength | Parameters of structural plane strength | | Lithology | Rock density (kg/m3) | Bulk modulus (GPa) | Shear modulus (GPa) | Cohesion (MPa) | Friction angle (°) | Normal stiffness (GPa) | Tangential stiffness (GPa) | Cohesion (kPa) | Dilatancy angle (°) | Friction angle (°) | Residual cohesion (kPa) | Residual friction angle (°) |
| | Cover layer | 2000 | 53.00 | 21.00 | 1.50 | 45.00 | 20 | 20 | 15 | 21.00 | 27 | 7.5 | 26 | | Neiss | 2282 | 155.00 | 65.00 | 12.50 | 51.00 | 20 | 20 | 74.5 | 28.00 | 39.5 | 19.75 | 33 | | Andalusite schist | 2840 | 157.00 | 69.00 | 11.90 | 52.00 | 20 | 20 | 67.6 | 28.00 | 40.3 | 20.15 | 33 | | Thinned sandstone | 2750 | 161.00 | 59.00 | 13.50 | 51.30 | 20 | 20 | 63.2 | 27.00 | 41.2 | 20.6 | 32 | | Quartz schist | 2260 | 41.00 | 18.00 | 1.20 | 41.00 | 20 | 20 | 15 | 21.00 | 28 | 14 | 26 |
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