Table 2 Numerical calculation model rock parameters.
Lithology | Volumetric weight /(kg/m3) | Bulk modulus /(GPa) | Shear modulus /(GPa) | Tensile strength /(MPa) | Internal friction angle /(°) | Cohesion / (MPa) |
|---|---|---|---|---|---|---|
Limestone | 2700 | 10.88 | 8.65 | 17.54 | 56 | 10.70 |
Sandy mudstone | 2654 | 5.30 | 4.20 | 1.50 | 34 | 1.50 |
Mudstone | 2526 | 5.10 | 4.50 | 1.20 | 31 | 1.20 |
Sandy mudstone | 2654 | 5.30 | 4.20 | 1.50 | 34 | 1.50 |
Fine sandstone | 2526 | 5.10 | 4.50 | 1.20 | 31 | 1.20 |
Sandy mudstone | 2654 | 5.30 | 3.20 | 1.50 | 34 | 1.50 |
Fine sandstone | 2526 | 5.10 | 4.50 | 1.20 | 31 | 1.20 |
Sandy mudstone | 2654 | 5.30 | 3.20 | 1.50 | 34 | 1.50 |
Fine sandstone | 2526 | 5.10 | 4.50 | 1.20 | 31 | 1.20 |
Sandy mudstone | 2654 | 4.30 | 3.20 | 1.50 | 34 | 1.50 |
Fine sandstone | 2526 | 3.50 | 4.50 | 1.20 | 31 | 1.20 |
Sandy mudstone | 2520 | 4.89 | 3.91 | 6.65 | 30 | 2.80 |
Coal-rock | 2526 | 3.50 | 4.50 | 1.20 | 31 | 1.20 |
Sandy mudstone | 2654 | 3.30 | 4.20 | 1.50 | 34 | 1.50 |
Fine sandstone | 2526 | 2.90 | 4.50 | 1.20 | 31 | 1.40 |
Sandy mudstone | 2654 | 2.60 | 1.50 | 1.50 | 34 | 1.30 |
C19 coal seam | 1450 | 2.70 | 1.20 | 2.06 | 30 | 1.34 |
Sandy mudstone | 2520 | 4.89 | 3.91 | 6.65 | 30 | 2.80 |
