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Abstract
Current floating structures require more reliable and higher anchoring capacities because of their increased size. A suction anchor is one of the most popular anchors for a floating system. In this study, the behavior of a suction anchor installed in cohesionless soil was investigated when the anchor was subjected to mainly a horizontal load. Three-dimensional finite element numerical analyses were carried out using ABAQUS, and three centrifuge tests were performed to calibrate the numerical analyses. A parametric study with different dimensions and loading points for the suction anchor was conducted. The horizontal capacity of the suction anchor was estimated, and the soil reaction distribution was analyzed when the load was applied at the optimal point. Based on the results, an analytical equation for calculating the horizontal capacity of a suction anchor was proposed that can be easily adopted for design.
Acknowledgment
This study was supported by the Future Flagship R&D Program (10042452, Engineering Technology Development for the 3,000 m Deepwater Subsea Equipment and URF Installation to advance to Deepwater Offshore Plant Market) funded by the Ministry of Trade, Industry & Energy (MI, Korea).