Research Article
Influence Factors’ Analysis of the Face-End Roof Leaks Exposed to Repeated Mining Based on Multiple Linear Regression
Table 4
Numerical simulation scheme.
| | Test number | Mining height (m) | Tip-to-face distance (m) | Distance of coal seams (m) | Surrounding rock strength (MPa) | Support setting load (×103 kN) | Advancing speed (m/d) |
| | 1 | 2.0 | 0.5 | 3 | 1.0 | 4 | 2 | | 2 | 2.0 | 1.0 | 6 | 1.5 | 5 | 3 | | 3 | 2.0 | 1.5 | 9 | 2.0 | 6 | 4 | | 4 | 2.0 | 2.0 | 12 | 2.5 | 7 | 5 | | 5 | 2.0 | 2.5 | 15 | 3.0 | 8 | 6 | | 6 | 2.5 | 0.5 | 6 | 2.0 | 7 | 6 | | 7 | 2.5 | 1.0 | 9 | 2.5 | 8 | 2 | | 8 | 2.5 | 1.5 | 12 | 3.0 | 4 | 3 | | 9 | 2.5 | 2.0 | 15 | 1.0 | 5 | 4 | | 10 | 2.5 | 2.5 | 3 | 1.5 | 6 | 5 | | 11 | 3.0 | 0.5 | 9 | 3.0 | 5 | 5 | | 12 | 3.0 | 1.0 | 12 | 1.0 | 6 | 6 | | 13 | 3.0 | 1.5 | 15 | 1.5 | 7 | 2 | | 14 | 3.0 | 2.0 | 3 | 2.0 | 8 | 3 | | 15 | 3.0 | 2.5 | 6 | 2.5 | 4 | 4 | | 16 | 3.5 | 0.5 | 12 | 1.5 | 8 | 4 | | 17 | 3.5 | 1.0 | 15 | 2.0 | 4 | 5 | | 18 | 3.5 | 1.5 | 3 | 2.5 | 5 | 6 | | 19 | 3.5 | 2.0 | 6 | 3.0 | 6 | 2 | | 20 | 3.5 | 2.5 | 9 | 1.0 | 7 | 3 | | 21 | 4.0 | 0.5 | 15 | 2.5 | 6 | 3 | | 22 | 4.0 | 1.0 | 3 | 3.0 | 7 | 4 | | 23 | 4.0 | 1.5 | 6 | 1.0 | 8 | 5 | | 24 | 4.0 | 2.0 | 9 | 1.5 | 4 | 6 | | 25 | 4.0 | 2.5 | 12 | 2.0 | 5 | 2 |
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