Research Article
Effect of Strain-Dependent Hydraulic Conductivity of Coal Rock on Groundwater Inrush in Mining
Table 2
Parameters of the numerical model for the triaxial hydraulic conductivity test.
| | Lithology | Density (kg/m3) | Hydraulic conductivity (×10-10 cm/s) | Porosity | Elastic modulus (GPa) | Poisson’s ratio | Cohesion (MPa) | Internal friction angle (°) | Tensile strength (MPa) | Dilatancy angle (°) |
| | Fine sandstone | 2600 | 8.15 | 0.2 | 5 | 0.2 | 13 | 38 | 6 | 28 | | Siltstone | 2550 | 5.18 | 0.15 | 2.3 | 0.23 | 9 | 34 | 4 | 24 | | Mudstone | 2500 | 1.17 | 0.12 | 1.45 | 0.3 | 3.1 | 33 | 3 | 22 |
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