Research Article
Influencing Factor Analysis on the Anomalously Low-Friction Effect in the Block Rock Mass
Table 5
Mechanical parameters of the contact surface.
| | | Combination 1: mudstone + sandstone + sandstone | Combination 2: sandstone + coal + sandstone | Combination 3: sandstone + sandstone + mudstone |
| | Cohesion (MPa) | 0.06 | 0.11 | 0.11 | | Internal friction angle (°) | 14 | 15 | 15 | | Tensile strength (MPa) | 0.035 | 0.039 | 0.039 | | Kn (Pa/m) | 5.47e9 | 9.55e9 | 9.55e9 | | Ks (Pa/m) | 5.47e9 | 9.55e9 | 9.55e9 |
|
|
