Research Article
Stability Assessment of Deep Three-Soft Outburst Coal Seam Roof Based on Fuzzy Analytic Hierarchy Process
Table 10
Relationship between scores and safety grades.
| Grade | Grade I | Grade II | Grade III | Grade IV | Grade V |
| Description | Little influence | Small influence | General influence | Large influence | Significant influence | Score range | >90 | 80–90 | 60–79 | 40–59 | <40 |
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