Study on Structural Service Performance of Heavy-Haul Railway Tunnel with Voided Base

Table 9

Statistical list of fatigue life in various cases.

	Case 1	Case 2	Case 3	Case 4	Case 5	Case 6	Case 7	Case 8
lgN	8.80	8.05	6.85	6.10	4.53	3.88	5.92	5.83
N	6.31E8	1.12E8	7.08E6	1.25E6	3.39E4	7.59E3	8.32E5	6.76E5