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

Table 2

Performance data ( = 9.8 m/s²).

	C1–S1	C1–S2	C1–S3	C2–S1	C2–S2	C2–S3	C3–S1	C3–S2	C3–S3
SE, (MJ/m^3)	12.52	15.84	18.28	9.02	6.32	4.85	8.28	6.93	4.40
CC (%)	15.6	16.1	18.7	36.4	33.5	32.6	32.0	31.7	29.1
, ()	0.44	0.39	0.32	0.46	0.38	0.53	0.38	0.32	0.46
σmax, (MPa)	33.91	9.77	6.82	270.64	158.93	64.80	278.99	165.08	67.14
, (km)	7.21	8.60	30.63	3.68	2.13	12.85	3.43	1.99	12.0