Research Article
Numerical Simulation of Surface Subsidence and Backfill Material Movement Induced by Underground Mining
Table 3
Macroscopic and microscopic properties of the filling material.
| | Filling material | Macroscopic parameter | Microscopic parameter | | ρ (kg/m3) | σc (MPa) | E (GPa) | ν | r (m) | Ec (GPa) | kn/ks | (MPa) | (MPa) |
| | Noncemented | 1880 | — | — | — | 0.1∼0.2 | 0.54 | 3 | — | — | | Cemented | 2150 | 2 | 3 | 0.35 | 0.5∼1.5 | 0.54 | 3 | 1.12 ± 0.22 | 1.68 ± 0.34 |
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