Research Article
Investigation on the Responses of Overburden Stress and Water Pressure to Mining under the Reverse Fault
Table 1
Major parameters of rocks in numerical model.
| | Stratum | Density (kg/m3) | Bulk modulus (MPa) | Shear modulus (MPa) | Internal friction angle (°) | Cohesion (MPa) | Tension (MPa) | Permeability (m2/Pa·sec) | Porosity |
| | Limestone | 2090 | 22.60 | 11.10 | 42.0 | 6.72 | 1.58 | | 0.15 | | Coal seam | 1400 | 1.04 | 0.51 | 25.0 | 2.00 | 0.50 | | 0.10 | | Mudstone1 | 2020 | 8.80 | 4.30 | 25.0 | 5.00 | 0.90 | | 0.25 | | Sandstone1 | 2436 | 16.50 | 10.00 | 31.4 | 6.12 | 1.90 | | 0.22 | | Mudstone2 | 2364 | 9.00 | 5.00 | 33.1 | 2.75 | 1.30 | | 0.25 | | Sandstone2 | 2621 | 16.80 | 10.00 | 33.6 | 7.60 | 1.76 | | 0.19 | | Mudstone3 | 2537 | 8.00 | 7.00 | 34.8 | 4.42 | 1.77 | | 0.24 |
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