Cracking Characteristics and Mechanism of Internal Components of Large-Span Shield Tunnel

Table 2

Analysis tests.

Boundary condition a	Test	1	2	3	4	5	6	7	8
	L3 (mm)	0	100	200	300	400	500	600	700
Boundary condition b	Test	–	9	10	11	12	13	14	15
	L3 (mm)	–	100	200	300	400	500	600	700
Boundary condition c	Test	16	17	18	19	20	21	22	23
	L3 (mm)	0	100	200	300	400	500	600	700