Investigation of the Axial Force Compensation and Deformation Control Effect of Servo Steel Struts in a Deep Foundation Pit Excavation in Soft Clay

Table 2

Axial force loss in ordinary steel struts.

Strut number	Measured axial force (kN)	Axial preloading force (kN)	Percentage of axial force loss
T1-2	327.34	930	64.80
T2-2	143.77	930	84.54
T3-2	339.21	930	63.53
T4-2	257.02	930	72.36
T1-3	320.14	1200	73.32
T2-3	588.27	1200	50.98
T3-3	668.16	1200	44.32
T4-3	412.67	1200	65.61
T1-4	647.61	810	20.05
T2-4	402.88	810	50.26
T3-4	653.89	810	19.27
T4-4	397.32	810	50.95