Research Article
The Stability Evaluation of Shaft during Drastic Drawdown Dewatering of Alluvium
Table 7
Prediction of shaft stability with drastic drawdown dewatering.
| | Shaft name | x1 (mm·a−1) | x2 (mm) | x3 (m) | x4 (m) | x5 (m) | x6 | x7 | Shaft state | Discriminant value y |
| | Main shaft in the Zhuxianzhuang mine | 249.69 | 249.69 | 255.9 | 5.5 | 1.05 | 1 | 1 | Failure | 79.332 | | Auxiliary shaft in the Zhuxianzhuang mine | 302.75 | 302.75 | 256.5 | 6.5 | 1.1 | 1 | 1 | Failure | 84.550 |
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