Systematic Performance Evaluation of Shield TBM Cutters for Excavating Multiple Soft Rock

Table 7

Different sets of weighting factors (%).

Performance parameters						Specimens
	P1	P2	P3	P4	P5		S1	S2	S3
I^a	20	20	20	20	20	1^a	33	33	33
II	60	10	10	10	10	2	80	10	10
III	10	10	10	60	10	3	10	80	10
VI	10	10	10	10	60	4	10	10	80

I^a and 1^a denote the first set of weighting factors of the performance parameters and specimens, respectively.