Proceeding of the 2018 DFI-EFFC International Conference on Deep Foundations and Ground Improvement, Rome, Italy, (DFI, EFFC)
Anchor Head Models : Classification, Adaptability & Design
M. Ansriou, Studies Engineer, T. Wulleman, C. Rabeux and A. Ouaar
Tieback anchors are elements made of reinforcement, composed by bars or tendons, introduced in a small diameter borehole and sealed into the ground by grout or mortar injections. Those systems are generally used to limit the top displacement of retaining structures. The geotechnical design of those elements is today well controlled but few publications showing the different models and their characteristics exist. The goal of this publication is, at first, to make a synthesis of the mostly used head anchors. Secondly, to show their adaptability as a function of the nature of the retaining structure. Finally to propose, by using an example, a methodology to design them. A parametric study is also performed by evaluating the required thickness of the different steel plates by varying the ULS (Ultimate Limit State) load and the tieback anchor inclination.
|article #3027; publication #1040 (ROME-2018)|