Research Article
Prediction of Coal Mine Gas Emission Quantity Based on Grey-Gas Geologic Method
Table 2
Contrast and statistics of the predicted result of gas emission quantity in coal face.
| | Number | Gas content/m3/t | The thickness of overlying rock/m | The thickness of coal seam/m | The average of daily output | The thickness of mudstone/m | Gas emission quantity predicted value/m3/t | Gas emission quantity measured value/m3/min |
| | 1 | 3.79 | 672.00 | 4.03 | 1320.00 | 8.80 | 7.26 | 7.58 | | 2 | 4.74 | 670.00 | 4.05 | 1037.00 | 8.90 | 8.58 | 7.44 | | 3 | 6.04 | 668.00 | 4.08 | 1182.00 | 9.00 | 9.09 | 8.51 | | 4 | 6.04 | 666.00 | 4.10 | 1182.00 | 8.90 | 8.97 | 8.51 | | 5 | 5.85 | 663.00 | 4.20 | 1000.00 | 8.40 | 8.85 | 8.42 | | 6 | 6.30 | 664.00 | 4.32 | 1130.00 | 7.70 | 8.62 | 8.22 | | 7 | 4.50 | 666.00 | 4.36 | 780.00 | 7.40 | 7.94 | 8.58 | | 8 | 5.94 | 668.00 | 4.40 | 1201.00 | 7.00 | 8.12 | 7.97 | | 9 | 4.90 | 670.00 | 4.41 | 805.00 | 6.60 | 8.33 | 7.58 | | 10 | 5.95 | 674.00 | 4.42 | 1529.00 | 6.00 | 7.68 | 6.75 | | 11 | 6.05 | 678.00 | 4.45 | 1476.00 | 5.50 | 8.01 | 7.39 | | 12 | 6.36 | 680.00 | 4.42 | 1529.00 | 4.80 | 8.48 | 7.82 | | 13 | 4.39 | 687.00 | 4.50 | 1052.00 | 4.00 | 8.09 | 7.55 | | 14 | 8.29 | 695.00 | 4.40 | 1523.00 | 3.70 | 10.95 | 10.31 | | 15 | 4.08 | 702.00 | 4.32 | 1474.00 | 3.30 | 8.20 | 7.90 |
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