Research Article
Experimental Research on Simulation Material for Water-Resisting Soil Layer in Mining Physical Simulation
Table 4
Mechanical parameters of overlying strata above working face.
| | Serial number | Lithology | Thickness (m) | Density (103 kg/m3) | Tensile strength (MPa) | Elastic modulus (GPa) |
| | 8 | Loose phreatic aquifer | 20.0 | 1.6 | — | 2.0 | | 7 | Red soil layer | 15.0 | 2.3 | 1.84 | 6.0 | | 6 | Medium sandstone | 6.0 | 2.4 | 4.89 | 18.0 | | 5 | Siltstone with medium and fine sandstone | 10.0 | 2.3 | 4.84 | 13.0 | | 4 | Medium sandstone | 6.0 | 2.4 | 4.89 | 18.0 | | 3 | Siltstone | 4.0 | 2.5 | 3.90 | 8.0 | | 2 | Sandy mudstone | 4.0 | 2.5 | 3.62 | 7.0 | | 1 | Siltstone | 2.0 | 2.4 | 3.90 | 6.0 | | 0 | Coal seam | 2.0 | 1.3 | 0.70 | 1.5 |
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