Research Article
Research on Physical Similarity Simulation of Mining Uphill and Downhill at the Large-Angle Working Face
Table 1
Mechanical parameters of coal and rock mass by similar materials.
| No. | Lithology | Elastic modulus (GPa) | Density 103 (kg m−3) | Compressive strength (MPa) | Cohesion (MPa) | Internal friction angle (°) |
| 1 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 2 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 3 | Medium coarse-grained sandstone | 19.2 | 2.4 | 58.52 | 4.5 | 40 | 4 | Mudstone (containing variegated mudstone) | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 5 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 6 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 7 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 8 | Mudstone (sandy mudstone) | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 9 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 10 | Sandstone and mudstone | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 11 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 12 | Sandy mudstone | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 13 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 14 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 15 | Sandy mudstone | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 16 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 17 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 18 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 19 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 20 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 21 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 22 | Siltstone | 16 | 2.1 | 52.16 | 10.5 | 35 | 23 | Sandy mudstone | 11.6 | 1.8 | 41.52 | 0.69 | 39 | 24 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 25 | Sandy mudstone | 11.6 | 1.8 | 41.52 | 0.69 | 39 | 26 | Fine sandstone (including mudstone) | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 27 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 28 | Sandy mud (including mudstone) | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 29 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 30 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 31 | Mudstone (with a small amount of fine sandstone) | 11.6 | 1.8 | 41.52 | 0.69 | 39 | 32 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 33 | Sandy mudstone | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 34 | Siltstone | 16 | 2.1 | 52.16 | 10.5 | 35 | 35 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 36 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 37 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 38 | Sandy mudstone | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 39 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 40 | Piebald mudstone | 10.8 | 1.7 | 42.05 | 1.02 | 39 | 41 | Fine-grained quartz sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 42 | Sandy mudstone | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 43 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 44 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 45 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 46 | Sandy mudstone | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 47 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 48 | Mudstone (containing fine sandstone) | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 49 | Sandy mudstone | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 50 | 13–1# coal seam | | | 2.61 | | | 51 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 52 | Sandy mudstone | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 53 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 54 | Piebald mudstone | 10.8 | 1.7 | 42.05 | 1.02 | 39 | 55 | Sandy mudstone | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 56 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 | 57 | Sandy mudstone | 11.6 | 1.8 | 42.90 | 0.69 | 39 | 58 | Medium sandstone | 19.2 | 2.4 | 55.86 | 4.5 | 40 | 59 | Mudstone | 10.2 | 1.7 | 41.52 | 1.22 | 39 | 60 | Fine sandstone | 35 | 2.6 | 51.47 | 23.1 | 37.5 | 61 | Sandy mudstone | 11.6 | 1.8 | 42.17 | 0.69 | 39 | 62 | Fine sandstone | 35 | 2.6 | 72.51 | 23.1 | 37.5 | 63 | Mudstone | 10.2 | 1.7 | 44.52 | 1.22 | 39 | 64 | Sandy mudstone | 11.6 | 1.8 | 43.62 | 0.69 | 39 | 65 | Mudstone | 10.2 | 1.7 | 45.98 | 1.22 | 39 | 66 | Fine sandstone | 35 | 2.6 | 43.71 | 23.1 | 37.5 | 67 | Mudstone | 10.2 | 1.7 | 34.06 | 1.22 | 39 | 68 | 11–2# coal seam | | | 2.61 | | | 69 | Mudstone | 10.2 | 1.7 | 23.67 | 1.22 | 39 | 70 | Fine sandstone | 35 | 2.6 | 64.09 | 23.1 | 37.5 |
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