Research Article
Strata Movement and Fracture Propagation Characteristics due to Sequential Extraction of Multiseam Longwall Panels
Table 2
Panel dimensions and extraction sequence of all the case studies.
| | Case study | Coal seam | Longwall panel | Extraction sequence | Panel width (m) | Average thickness (m) |
| | Case 1 | Coal seam #3 | Upper panel | First | 210 | 2 | | Coal seam #5 | Lower panel | Second | 220 | 3.2 |
| | Case 2 | Coal seam #13-1 | Upper panel | Second | 210 | 3 | | Coal seam #11-1 | Lower panel | First | 210 | 2.45 |
| | Case 3 | Coal seam #11-1 | Extension part | — | 100 | 3 |
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