In Situ Creep Model Testing for the Tunnel Anchor Foundation of Xingkang Suspension Bridge in Luding of China

Table 2

Input parameters of Burger’s model used for surrounding rocks.

Load	E1 (GPa)	η1 (GPa·h)	E2 (GPa)	η2 (GPa·h)
1.0Nm	0.44	63900	5.04	20.31
3.5Nm	0.23	30100	3.15	10.11
7.0Nm	0.15	20300	1.54	4.02