Study for Service Performance of the Scale Suction Caisson

Scaled suction caisson Numerical simulation Pull-out behaviors Static loading Cyclic loading
["Liang, Hao","Li, Dayong"] 2025-01-01 期刊论文
As an innovative foundation used in the offshore floating platform, the scaled suction caisson (SSC) has a greater advantage in the installation and service than the traditional suction caisson (TSC). To investigate the pull-out capacity of the SSC, the numerical simulations are carried out under static and cyclic loads. The study shows the inclined pull-out capacity of the SSC increases with increasing the loading angle., but firstly increases, then decreases with increasing the padeye depth. Compared with the TSC, the inclined pull-out capacity of the SSC increases by 20 similar to 40% when the loading angles. are in the range of 0 similar to 30 degrees, but its values increase by 100% when the loading angles exceed 60 degrees. Under the combined static and cyclic loads, the vertical cumulative displacement of the SSC decreases, but horizontal cumulative displacement increases. The total cumulative displacement of the SSC decreases by 13% compared with the TSC. It can be concluded that more soils can mobilized by the bio-scale surface to resist the pull-out loads. As a result, the SSC significantly improves inclined pull-out capacity and decreases the cumulative displacement.
来源平台:PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL AND ECOLOGICAL ENGINEERING RESEARCH, ACEER2024