Research Article
Overburden Damage Degree-Based Optimization of High-Intensity Mining Parameters and Engineering Practices in China’s Western Mining Area
Table 1
Mining parameters and PWI of the longwall faces in the western mining area.
| No. | Coal mine | Panel name | Panel width (m) | Mining height (m) | Advancing speed (m/d) | PWI (m) |
| 1 | Huojitu | 21305 (a) | 257.2 | 4.3 | 5 | 8.5 | 2 | 21305 (b) | 257.2 | 4.3 | 16 | 9.9 | 3 | 21306 (a) | 257.2 | 4.3 | 5.2 | 9.1 | 4 | 21306 (b) | 257.2 | 4.3 | 12.4 | 9.6 | 6 | Daliuta | 52304 | 301 | 6.8 | 13.8 | 18 | 7 | 52307 | 301 | 6.8 | 10.8 | 17.8 | 8 | 52303 (a) | 301.5 | 6.8 | 4 | 16.9 | 9 | 52303 (b) | 301.5 | 6.8 | 14 | 18.2 | 10 | Shangwan | 12211 | 210 | 5.6 | 15 | 13.1 | 11 | 12204 | 300 | 6.0 | 13 | 12.3 | 12 | 12205 | 308 | 6.0 | 11.7 | 12 | 13 | 12206 | 318 | 6.8 | 10.1 | 11.2 | 14 | 12201 | 240 | 5.3 | 15 | 20.6 | 15 | Yujialiang | 44201 | 240 | 3.1 | 21.6 | 15 | 16 | 44202 | 301.1 | 3 | 18.7 | 12 | 17 | 44205 | 296.9 | 3.3 | 18.7 | 11.8 | 18 | 44207 | 360 | 3.5 | 16.4 | 10.7 | 19 | 44208 | 400.5 | 3.6 | 15.6 | 9.9 |
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