Research Article
Quantitative Inversion of Water-Inrush Incidents in Mountain Tunnel beneath a Karst Pit
Table 11
Permeability coefficient of inversion analysis.
| | | Karst infiltration zone (cm/s) | Tunnel surrounding rock (cm/s) |
| | No. 1 water-inrush incident | 1.3 × 10−3 | 1.9 × 10−4 | | No. 2 water-inrush incident | 1.4 × 10−3 | 2.2 × 10−4 | | No. 3 water-inrush incident | 4.5 × 10−3 | 5.5 × 10−4 | | Average | 2.4 × 10−3 | 3.2 × 10−4 |
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