Performance Evaluation of Deeply Embedded Ring Anchors in Saturated Sand

The Deeply Embedded Ring Anchor (DERA) has been developed as a cost-effective anchor solution for securing floating offshore wind turbines (FOWTs). To enhance its geotechnical efficiency, the DERA will be installed at great depths while maintaining a compact size by utilizing a follower system. Additionally, the DERA is designed not only as a single mooring anchor but also to accommodate multiple mooring line attachments. This research investigates the pull-out performance of DERAs across various configurations, including single mooring versus multiple mooring pullout, and various follower designs, such as having the same diameter as the anchor or a smaller diameter than the anchor. Conducted as 1/10th model scale test (0.31 m diameter by 0.46 m length), the study investigates these scenarios on medium dense sands, simulating conditions relevant to wind turbine foundations. The findings aim to demonstrate the robustness and reliability of DERA systems, offering a cost-effective alternative to the conventional offshore foundation solutions.