Research Article

Classification Method and Application of Rock Fracture Ability by Supercritical CO2 Blasting

Table 1

Numerical scales of factor contribution.

Numerical scalesMeaning and explanation

1Comparing the two factors, the target factor is as important as the comparison factor
3Comparing the two factors, the target factor and the comparison factor are slightly more important
5Comparing the two factors, the target factor and the comparison factor are strongly important
7On comparison of two factors, the target factor and the comparison factor are more strongly important
9On comparison of two factors, the target factor and the comparison factor are extremely important
2, 4, 6, 8The intermediate values reflect an intermediate position of importance
Reciprocals (i.e., 1, 1/3, 1/5, …, 1/9)The reciprocal number reflects the reverse comparison positions of the above