Failure Characteristics of Joint Bolts in Shield Tunnels Subjected to Impact Loads from a Derailed Train

Table 5

Failure time and sequence of joints bolts.

Failure sequence	Joint bolt number	Failure time (ms)
1	A	4.02
2	F	4.68
3	B	4.85
4	E	6.01
5	C	6.14
6	G	15.45
7	D	17.09
8	H	17.31