Table 3 Comparison between actual parameters and model parameters.
Parameter | Field parameters | Model parameters | |||||||
|---|---|---|---|---|---|---|---|---|---|
Lithology | Thickness /m | Uniaxial compressive strength/ MPa | Unit weight/ 104Â N/m3 | Thickness /cm | Uniaxial compressive strength/MPa | Unit weight/ 104Â N/m3 | Mix ratio number | Water volume/Kg | |
Roof | Fine sandstone | 9.00 | 22.00 | 2.54 | 9.00 | 0.13 | 1.54 | 1237 | 34.57 |
Siltston | 6.00 | 30.00 | 2.51 | 6.00 | 0.18 | 1.53 | 1237 | 7.92 | |
Fine sandstone | 4.00 | 63.00 | 2.56 | 4.00 | 0.37 | 1.56 | 873 | 3.15 | |
Siltstone | 10.00 | 49.60 | 2.57 | 10.00 | 0.29 | 1.56 | 1037 | 3.77 | |
Medium-fine sandstone | 3.00 | 72.48 | 2.58 | 3.00 | 0.42 | 1.57 | 873 | 17.57 | |
Mudstone | 5.00 | 28.41 | 2.45 | 5.00 | 0.17 | 1.49 | 1237 | 1.41 | |
Coal seam | 8coal seam | 8.00 | 8.20 | 1.40 | 8.00 | 0.09 | 0.85 | 1237 | 3.86 |
Floor | Mudstone | 4.00 | 30.30 | 2.49 | 4.00 | 0.18 | 1.51 | 1237 | 2.65 |
9coal seam | 4.00 | 30.30 | 2.49 | 4.00 | 0.18 | 1.51 | 1237 | 2.65 | |
Aluminous mudstone | 3.00 | 31.60 | 2.50 | 3.00 | 0.19 | 1.52 | 1237 | 2.00 | |
Mudstone | 5.00 | 30.30 | 2.49 | 5.00 | 0.18 | 1.51 | 1237 | 2.65 | |
Siltstone | 5.00 | 49.60 | 2.57 | 5.00 | 0.29 | 1.56 | 1037 | 1.69 | |
Mudstone | 5.00 | 12.30 | 2.61 | 5.00 | 0.07 | 1.59 | 1237 | 1.29 | |
Siltstone | 7.00 | 49.60 | 2.57 | 7.00 | 0.29 | 1.56 | 1037 | 2.00 | |
Mudstone | 8.00 | 12.30 | 2.61 | 8.00 | 0.07 | 1.59 | 1237 | 1.29 | |
Siltstone | 4.00 | 47.68 | 2.62 | 4.00 | 0.27 | 1.59 | 1037 | 2.64 | |
Mudstone | 5.00 | 28.40 | 2.55 | 5.00 | 0.17 | 1.55 | 1237 | 3.19 | |
Siltstone | 2.00 | 47.68 | 2.62 | 2.00 | 0.27 | 1.59 | 1037 | 1.30 | |
Mudstone | 5.00 | 12.30 | 2.61 | 5.00 | 0.07 | 1.59 | 1237 | 1.89 | |
Sandy mudstone | 3.00 | 12.30 | 2.61 | 3.00 | 0.07 | 1.59 | 1237 | 1.89 | |
