Research Article
A New Bayesian Network Model for the Risk Assessment of Water Inrush in Karst Tunnels
Table 2
Risk classification of unfavorable geology.
| Risk classification | Definition |
| I | High risk: large-sized water-storing structure exists | II | Moderate risk: medium-sized water-storing structure exists | III | Low risk: small-sized water-storing structure exists | IV | No risk: no water-storing structure exists |
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