Research Article
Study on the Stability of the Coal Seam Floor above a Confined Aquifer Using the Structural System Reliability Method
Table 2
Calculation results of the median safety factor of stability of the water-resistant floor.
| Parameter | First type of failure mode | Second type of failure mode | Mining failure | Intrusion | Combined mode involving mining and intrusion | Tensile failure | Shear failure |
| Median safety factor of K | 2.705 | 1.750 | 1.925 | 1.744 | 2.645 |
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