Research Article
Plugging and Its Stability Evaluation for the Ore Pass in the Nonempty Condition Based on Controllable Grouting of Cement-Sodium Silicate Grout
Table 1
The physical and mechanical parameters to be used.
| Rock mass | Density (kg·m-3) | Elastic modulus (GPa) | Poisson ratio | Friction angle (°) | Cohesive force (MPa) | Tension strength (MPa) |
| Surrounding rocks | 2660 | 5.16 | 0.25 | 42.7 | 1.93 | 0.29 | Replacement of gravels | 2400 | 0.19 | 0.25 | 40.5 | 0 | 0 | Grouting stone body | 2000 | 1.00 | 0.30 | 36.5 | 2.25 | 0.10 |
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