Risk Assessment of Water Inrush from Coal Floor Based on Karst Fractal-Vulnerability Index Method

Table 3

Weights of the main controlling factors for water inrush.

Influential factors	Hydraulic pressure in the aquifer	Water abundance of the aquifer	Degree of karst development	Equivalent thickness of the effective aquiclude	Coal mining depth	Dip angle of the coal seam	Fault complexity
Weights	0.192	0.068	0.114	0.218	0.067	0.083	0.257