Evaluation of the Adaptability of an EPB TBM to Tunnelling through Highly Variable Composite Strata

Table 13

Weights of the evaluation indexes in the criteria layer.

D	U1	U2	U3
U1	1	3	2
U2	1/3	1	1/2
U3	1/2	2	1
Single-layer weight	0.5396	0.1634	0.2970
Single hierarchy	1	3	2
λmax = 3.0183, CI = 0.0092, RI = 0.5149, and CR = 0.0179 < 0.1