A New Bayesian Network Model for the Risk Assessment of Water Inrush in Karst Tunnels

Table 1

Risk classification of formation lithology.

Risk classification		Definition
I	>0.254	Strong karst stratum
II	0.104~0.254	Moderate karst stratum
III	0.042~0.104	Weak karst stratum
IV	<0.042	Nonsolute stratum