Research Article
Experimental Study on Reasonable Spacing after Carbon Dioxide Presplitting in Low-Permeability Coal Seam
Table 2
Extraction radius at different extraction times.
| | Extraction time (d) | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
| | Extraction radius (m) | 1.63 | 2.03 | 2.34 | 2.59 | 2.80 | 2.99 | 3.15 | 3.30 | | Extraction time (d) | 110 | 120 | 130 | 140 | 150 | 160 | 170 | 180 | | Extraction radius (m) | 3.43 | 3.55 | 3.66 | 3.76 | 3.86 | 3.94 | 4.03 | 4.11 |
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