Research Article
Surrounding Rock Failure Characteristics and Water Inrush Mechanism of Roadway above the Aquifer in Nonuniform Stress Field
Table 1
Model layout and rock mechanics parameters.
| Number | Stratum name | Thickness (m) | (kg·m-3) | (GPa) | (GPa) | (°) | (MPa) | (MPa) |
| ⑨ | Roadway | — | 2500 | 10.44 | 4.54 | 28 | 3.36 | 2.60 | ⑧ | Main roof | 6.3 | 2200 | 8.82 | 5.04 | 33 | 5.56 | 1.48 | ⑦ | 2-1 coal seam | 6.2 | 2200 | 8.82 | 5.04 | 33 | 5.56 | 1.48 | ⑥ | Mudstone | 7.5 | 2200 | 8.82 | 5.04 | 30 | 3.24 | 1.48 | ⑤ | Sandy mudstone | 7.5 | 2500 | 10.44 | 4.54 | 28 | 3.36 | 2.60 | ④ | L9 limestone | 2 | 2700 | 12.6 | 8.3 | 40 | 10 | 8.71 | ③ | Mudstone | 5.2 | 2200 | 8.82 | 5.04 | 30 | 3.24 | 1.48 | ② | Sandy mudstone | 5.3 | 2500 | 10.44 | 4.54 | 28 | 3.36 | 2.60 | ① | L8 limestone | 10 | 2700 | 12.6 | 8.3 | 40 | 10 | 8.71 |
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