Research Article
Field Measurement and Numerical Modelling Study on Mining-Induced Subsidence in a Typical Underground Mining Area of Northwestern China
Table 8
Parameters used for strata.
| | Lithology | Thickness (m) | Elastic modulus (GPa) | Shear modulus (GPa) | Compressive strength (MPa) | Cohesion (MPa) | Friction angle (°) | Density (kg/m3) |
| | Alluvium | 73.4 | 0.5 | 0.3 | 0.2 | 0.1 | 28.0 | 2500 | | Fine sandstone | 9.6 | 11.5 | 6.8 | 35.0 | 3.5 | 38.0 | 2540 | | Siltstone | 40.3 | 9.0 | 5.8 | 27.0 | 3.0 | 37.0 | 2520 | | Fine sandstone | 70.4 | 11.5 | 6.8 | 35.0 | 3.5 | 38.0 | 2540 | | Sandy mudstone | 29.6 | 8.0 | 5.5 | 15.5 | 2.5 | 35.5 | 2510 | | Siltstone | 51.1 | 9.0 | 5.8 | 27.0 | 3.0 | 37.0 | 2520 | | Fine sandstone | 18.9 | 11.5 | 6.8 | 35.0 | 3.5 | 38.0 | 2540 | | Sandy mudstone | 49.7 | 8.0 | 5.5 | 15.5 | 2.5 | 35.5 | 2510 | | Siltstone | 25.3 | 9.0 | 5.8 | 27.0 | 3.0 | 37.0 | 2520 | | Fine sandstone | 34.0 | 11.5 | 6.8 | 35.0 | 3.5 | 38.0 | 2540 | | Sandy mudstone | 31.0 | 8.0 | 5.5 | 15.5 | 2.5 | 35.5 | 2510 | | Fine sandstone | 41.8 | 11.5 | 6.8 | 35.0 | 3.5 | 38.0 | 2540 | | Sandy mudstone | 48.2 | 8.0 | 5.5 | 15.5 | 2.5 | 35.5 | 2510 | | Siltstone | 40.3 | 9.0 | 5.8 | 27.0 | 3.0 | 37.0 | 2520 | | Sandy mudstone | 15.6 | 8.0 | 5.5 | 15.5 | 2.5 | 35.5 | 2510 | | Fine sandstone | 13.6 | 11.5 | 6.8 | 35.0 | 3.5 | 38.0 | 2540 | | Sandy mudstone | 20.1 | 8.0 | 5.5 | 15.5 | 2.5 | 35.5 | 2510 | | Coal seam | 5.5 | 4.9 | 3.1 | 8.5 | 1.2 | 29.2 | 1400 | | Sandy mudstone | 15.3 | 8.0 | 5.5 | 15.5 | 2.5 | 35.5 | 2510 | | Fine sandstone | 6.6 | 11.5 | 6.8 | 35.0 | 3.5 | 38.0 | 2540 |
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