Research Article
Influence of Fault on the Surrounding Rock Stability for a Mining Tunnel: Distance and Tectonic Stress
Table 1
Mechanical parameter for rock mass and mining tunnel supporting material.
| | Material | Deformation modulus (GPa) | Possion’s ratio | Cohesion (MPa) | Frictional angle (°) | Tensile strength (MPa) | Unit weight (kN/m3) |
| | Rock mass (graded III) | 6.0 | 0.28 | 1.2 | 40.0 | 1.0 | 26.0 | | Fault and its filling | 0.1 | 0.40 | 0.6 | 23.0 | 0.0 | 23.0 | | Shotcrete | 21.0 | 0.18 | — | — | 1.2 | 24.0 |
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