Research Article
Study on Overburden Rock Movement and Stress Distribution Characteristics under the Influence of a Normal Fault
Table 3
Model strata and mechanical parameters.
| Lithology | Density (kg/m3) | Bulk modulus (GPa) | Shear modulus (GPa) | Cohesion (MPa) | Tensile strength (MPa) | Friction angle (°) |
| Gritstone | 2400 | 8.2 | 7.5 | 1.2 | 3.96 | 41 | Siltstone | 2530 | 13.4 | 7.6 | 1.4 | 1.85 | 37 | Coal | 1350 | 10.5 | 6.5 | 1.2 | 0.5 | 23 | Packsand | 2530 | 13.4 | 7.6 | 1.4 | 4.0 | 37 | Mudstone | 2340 | 9.8 | 7.1 | 0.5 | 3.0 | 39 | Fault | 2000 | 0.01 | 0.0035 | 0.001 | 0.2 | 5 |
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