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 16

List of stability evaluation results for each shaft.

Shafts	()	()	()	()	()	Entropy weight method	AHP method	Category	Category eigenvalue	Actual category
Linhuan Coal Mine auxiliary shaft	-0.6207	-0.4943	-0.1868	-0.0248	-0.1176	IV	IV	IV	10.8304	V
Haizi Coal Mine middle air shaft	-0.5829	-0.4238	-0.5345	-0.5377	-0.2212	V	V	V	6.7811	V
Haizi Coal Mine main shaft	-0.7149	-0.5597	-0.4953	-0.4551	-0.1041	V	V	V	8.2883	V
Haizi Coal Mine auxiliary shaft	-0.6638	-0.4915	-0.3561	-0.4744	-0.1395	V	V	V	8.8635	V
Zhuxianzhuang mine air shaft	-0.0040	-0.2555	-0.3021	-0.5014	-0.6400	I	I	I	4.6743	I
Zhangshuanglou mine main shaft	-0.5856	-0.4475	-0.1105	-0.0475	-0.1545	IV	IV	IV	11.1682	IV
Zhangshuanglou mine auxiliary shaft	-0.5984	-0.4646	-0.1657	-0.0200	-0.1517	IV	IV	IV	10.5686	IV
Pansan Coal Mine western wind shaft	-0.4904	-0.1942	-0.1320	-0.3154	-0.3446	III	III	III	8.6396	III
Panyi Coal Mine eastern wind shaft	-0.5001	-0.2387	-0.1389	-0.1333	-0.2848	IV	III	IV	11.3147	IV
Xinlongzhuang Coal Mine main shaft	-0.5230	-0.2966	-0.0820	-0.1282	-0.2451	III	III	III	10.7584	III
Xinglongzhuang Coal Mine auxiliary shaft	-0.5746	-0.4248	-0.1230	0.0427	-0.2069	IV	IV	IV	9.6585	IV
Xinglongzhuang Coal Mine eastern wind shaft	-0.4398	-0.1281	-0.0616	-0.0596	-0.4062	V	IV	IV	9.0658	IV
Nantun Coal Mine baimahe air shaft	-0.4133	-0.1093	0.0746	-0.1573	-0.3970	III	III	III	6.5114	III
Dongtan Coal Mine main shaft	-0.1750	-0.1848	-0.3467	-0.2967	-0.5650	I	I	I	7.3814	II
Dongtan Coal Mine auxiliary shaft	-0.2263	-0.0949	-0.2769	-0.2808	-0.5412	II	II	II	6.8164	II