Research Article
Experimental Study on Reasonable Spacing after Carbon Dioxide Presplitting in Low-Permeability Coal Seam
Table 4
Variance analysis of drilling field factor experiment results.
| | Factors | Sum of deviation squares (SSi) | Freedom (df) | Mean square deviation (MS) | FA | F0.05 (1, 14) | Significance |
| | Drilling field (A) | 0.0003 | 1 | 0.0003 | 0.0003 | 4.60 | Not remarkable | | Error (E) | 14.0679 | 14 | 1.0049 | — | — | — | | Sum (T) | 14.0682 | 15 | — | — | — | — |
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