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

Table 8

Fuzzy matrix of seam C₁.

Criteria	Seam data	Components of fuzzy matrix
		VP	P	M	G	VG
Depth of seam	364	0	0.0991	0.5661	0	0
Thickness of seam	1.9	0.0322	0.1181	0	0	0
Cleats	20	1	0	0	0.0075	0.0024
Uniformity of seam	0.75	0.0003	0.7548	0.0795	0	0
Gas content	16.3	0	0	0.4483	0.4674	0
Roof quality	95.1	0	0.1186	0.5083	0	0
Water condition	83	0	0	0.5561	0.1862	0
Permeability	45	0	0	0	0.0038	0.9994