Table 2 Mixing proportion of coal and rock layers.
Num-ber | Lithology | Density (g/cm3) | Mixing ratio code | Thickness (m) | Similar thickness (cm) | Apparent density (g/cm3) | Fine sand (kg) | Lime (kg) | Gypsum (kg) | Water (kg) |
|---|---|---|---|---|---|---|---|---|---|---|
1 | Sandy Mudstone | 2540 | 573 | 16 | 16 | 1.5 | 22.42 | 3.14 | 1.35 | 2.99 |
2 | Fine-grained Sandstone | 2950 | 337 | 6 | 6 | 1.5 | 20.20 | 2.02 | 4.68 | 2.99 |
3 | Sandy Mudstone | 2540 | 573 | 8 | 8 | 1.5 | 22.42 | 3.14 | 1.35 | 2.99 |
4 | Medium-grained Sandstone | 2670 | 437 | 7 | 7 | 1.5 | 21.52 | 1.61 | 3.77 | 2.99 |
5 | Sandy Mudstone | 2540 | 573 | 17 | 17 | 1.5 | 22.42 | 3.14 | 1.35 | 2.99 |
6 | Fine-grained Sandstone | 2950 | 337 | 4 | 4 | 1.5 | 20.20 | 2.02 | 4.68 | 2.99 |
7 | Sandy Mudstone | 2540 | 573 | 8 | 8 | 1.5 | 22.42 | 3.14 | 1.35 | 2.99 |
8 | Medium-grained Sandstone | 2670 | 437 | 7 | 7 | 1.5 | 21.52 | 1.61 | 3.77 | 2.99 |
9 | Sandy Mudstone | 2540 | 573 | 9 | 9 | 1.5 | 22.42 | 3.14 | 1.35 | 2.99 |
10 | Wu8 coal seam | 1430 | 673 | 2 | 2 | 1.5 | 23.06 | 2.69 | 1.15 | 2.99 |
11 | Sandy Mudstone | 2540 | 573 | 3 | 3 | 1.5 | 22.42 | 3.14 | 1.35 | 2.99 |
12 | Wu9-10 coal seam | 1430 | 673 | 3 | 3 | 1.5 | 23.06 | 2.69 | 1.15 | 2.99 |
13 | Sandy Mudstone | 2540 | 573 | 5 | 5 | 1.5 | 22.42 | 3.14 | 1.35 | 2.99 |
14 | Medium-grained Sandstone | 2670 | 437 | 7 | 7 | 1.5 | 21.52 | 1.61 | 3.77 | 2.99 |
15 | Mudstone | 2630 | 573 | 11 | 11 | 1.5 | 22.42 | 3.14 | 1.35 | 2.99 |
16 | Sandy Mudstone | 2540 | 573 | 7 | 7 | 1.5 | 22.42 | 3.14 | 1.35 | 2.99 |
17 | Medium-grained Sandstone | 2670 | 437 | 7 | 7 | 1.5 | 21.52 | 1.61 | 3.77 | 2.99 |
18 | Sandy Mudstone | 2540 | 573 | 5 | 5 | 1.5 | 22.44 | 3.14 | 1.35 | 2.99 |
19 | Mudstone | 2630 | 573 | 11 | 11 | 1.5 | 22.44 | 3.14 | 1.35 | 2.99 |
20 | Sandy Mudstone | 2540 | 573 | 7 | 7 | 1.5 | 22.44 | 3.14 | 1.35 | 2.99 |
