Research Article
Effect of Strain-Dependent Hydraulic Conductivity of Coal Rock on Groundwater Inrush in Mining
Table 1
Parameters and results of the triaxial hydraulic conductivity test.
| | Lithology description | Sampling horizon (m) | Sample size (mm) | Confining pressure (MPa) | Water pressure difference (MPa) | Average peak stress - (MPa) | Hydraulic conductivity (×10-10 cm/s) | | Height | Diameter | Initial | Peak |
| | Siltstone | 461.3-462.2 | 98.4 | 49.6 | 5 | 1.5 | 48.7 | 5.18 | 24.3 | | Mudstone | 466.2-467.1 | 99.7 | 49.6 | 5 | 1.5 | 29.5 | 1.17 | 5.31 | | Fine sandstone | 550.2-551.1 | 99.5 | 49.5 | 5 | 1.5 | 74.32 | 8.15 | 167.7 |
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