Predictive Analysis of Settlement Risk in Tunnel Construction: A Bow-Tie-Bayesian Network Approach

Table 6

Standard values and ranges of excavation speed and TBMPs.

Factors	(mm/min)	F (kN)	P N (kPa)	M T (kN·m)	P G (kPa)
Parameter range	[20, 44]	[8300, 13100]	[117, 143]	[1294, 2974]	[197, 302]
Standard value	32	9700	132.6	2270	302
Deviation range (%)	[−37.5, 37.5]	[−14.43, 35.05]	[−11.76, 7.84]	[−43.0, 31.01]	[−34.77, 0]