Pullout Test on Fully Grouted Bolt Sheathed by Different Length of Segmented Steel Tubes

Figure 9

Load-displacement relationship (a) for samples S2-3 (15 + 5 + 10) and S3-2 (15 + 10 + 5) terminated by interfacial decoupling and respective end views ((b), (c)) for them.

(a)

(b)

(c)