Quantitative Evaluation for the Threat Degree of a Thermal Reservoir to Deep Coal Mining

Table 19

Comprehensive membership matrix of borehole Qs1.

Parameter assignment	Threat level
	Safe (I)	Low threat (II)	Medium threat (III)	Relatively high threat (IV)	High threat (V)
,	0	0.0207	0.1618	0.5597	0.0448
,	0	0.0470	0.1892	0.5505	0.0822
,	0	0.0004	0.0359	0.6177	0.0022
,	0	0.0024	0.0516	0.6000	0.0080