Intelligent Control of Smooth Blasting Quality in Rock Tunnels Using BP-ANN, ENN, and ANFIS

Table 23

Eigenvalues of construction factor index.

No.	Eigenvalue	Percentage (%)	Cumulative percentage (%)
1	1.6548	55.15	55.15
2	0.7474	24.91	80.07
3	0.5978	19.92	100