Study on Control of Cumulative Risk for Submarine Tunnel Shield Construction

Table 6

The contributions of the dimension of fragility.

Fxy	sp	sl	sn	sr	βp	βl	βn	βr
FSS					1	1	1	1
FSP					1	0	0	0
FSL					0	1	0	0
FSN					0	0	1	0
FSR					0	0	0	1
FPP					1	0	0	0
FPL	Tp /2	Tl /2			sp/(sp + sl)	sl/(sp + sl)	0	0
FPN	Tp /2	Tl	Tn /2		sp/(sp + sl + sn)	sl/(sp + sl + sn)	sn/(sp + sl + sn)	0
FPR	Tp /2	Tl /2	Tn	Tr /2	sp/(sp + sl + sn + sr)	sl/(sp + sl + sn + sr)	sn/(sp + sl + sn + sr)	sr/(sp + sl + sn + sr)
FLL					0	1	0	0
FLN		Tl	Tn /2		0	sl/(sl + sn)	sn/(sl + sn)	0
FLR		Tl /2	Tn	Tr /2	0	sl/(sl + sn + sr)	sn/(sl + sn + sr)	sr/(sl + sn + sr)
FNN					0	0	1	0
FNR			Tn /2	Tr /2	0	0	sn/(sn + sr)	sr/(sn + sr)