Research Article

Quantitative Evaluation and Case Study of Risk Degree for Underground Goafs with Multiple Indexes considering Uncertain Factors in Mines

Table 3

The judgment values for determining the importance degree between the criteria and .

The importance degree for comparing and

and b are “equally important”11
is “a little more important” than 31/3
is “obviously important” compared to 51/5
is “significantly more important” than 71/7
is “extremely important” compared to 91/9
The importance degree of with respect to is between the above levels2, 4, 6, 81/