ABSTRACT
Since the suction anchor has an advantage in installation and capacities, it is considered as an alternative anchor foundation for floating structures. For the suction anchor, the previous researches were focused on the capacities at the ultimate state rather than the deformation of the anchor before the ultimate state. On the other hand, the significant floating structures such as Submerged Floating Tunnel (SFT) require low allowable deformations, thus it is necessary to understand the deformation, in particular, the rotation which is characteristic of the suction anchor movement, from initial to the ultimate state. In this study, the response of the rotational deformation for the whole strain is evaluated using the geotechnical centrifuge in KAIST. Four tests were conducted with different load inclinations to estimate the effects of the inclination of the load on rotational behavior. Furthermore, additional three different anchor dimensions are considered to evaluate the influences of anchor size and aspect ratio on the rotation. Variations in the rotation angle were observed from the initial level to be-yond the failure strain level. Consequently, the load inclinations and aspect ratio are dominant factors on the rotational deformation.
