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

Table 15

Calculation of importance measure of influential factors.

Symbol	Importance measure
	BM	RAW	FV
X1	2.311e − 1	7.352e − 02	7.352e − 02
X2	2.279e − 1	6.958e − 02	6.958e − 02
X3	1.990e − 1	3.481e − 02	3.481e − 02
X4	1.716e − 1	1.691e − 03	1.691e − 03
X5	2.165e − 1	5.587e − 02	5.587e − 02
X6	2.356e − 1	7.884e − 02	7.884e − 02
X7	2.239e − 1	6.476e − 02	6.476e − 02
X8	2.010e − 1	3.715e − 02	3.715e − 02
X9	1.370e − 6	6.306e − 08	6.306e − 08
X10	8.300e − 7	6.291e − 08	6.291e − 08
X11	2.040e − 6	6.293e − 08	6.293e − 08
X12	1.030e − 6	6.280e − 08	6.280e − 08
X13	5.300e − 7	6.303e − 08	6.303e − 08