Evaluation on the Stability of Vertical Mine Shafts below Thick Loose Strata Based on the Comprehensive Weight Method and a Fuzzy Matter-Element Analysis Model

Table 15

Degrees of correlation of stability evaluation indexes of the auxiliary shaft of Linhuan Coal Mine.

Correlation degree of each evaluation index	I	II	III	IV	V	Category
1	-0.7292	-0.6389	-0.4583	0.0833	-0.0714	IV
2	-0.8045	-0.7393	-0.6089	-0.2178	0.2178	V
3	-0.4293	-0.2390	0.2830	-0.1103	-0.3598	III
4	-0.4433	-0.2578	0.2267	-0.0924	-0.3552	III
1	-0.6917	-0.5889	-0.3833	0.2333	-0.1591	IV
2	-0.6250	-0.5000	-0.2500	0.5000	-0.2500	IV
3	-0.4000	-0.2000	0.4000	-0.1429	-0.3684	III
1	-0.8750	-0.8333	-0.7500	-0.5000	0.5000	V
1 ()	-0.6207	-0.4943	-0.1868	-0.0248	-0.1176	IV