Selection of Compatible Coal Seam for Methane Drainage Operation Based on Uncertain Geological Conditions: A Hybrid Fuzzy Approach

Table 5

The importance degree (weight) of the geological criteria affecting MDA of coal seams.

Criteria	Symbol	Degree of importance ()
Depth of seam	C1	0.1208
Thickness of seam	C2	0.0815
Cleats	C3	0.1682
Uniformity of seam	C4	0.1138
Gas content	C5	0.1584
Roof quality	C6	0.0888
Water condition	C7	0.1364
Permeability	C8	0.1320