Study on the Bearing Characteristics of Tripod Suction Bucket Foundation under Lateral Loading
The three-dimensional finite element model is established to investigate the horizontal bearing characteristic of the tripod suction foundation by setting different loading direction and gravity load.An elastic-plastic bounding surface constitutive model is used to simulate the stress-strain behavior of clays.The feasibility of the numerical method is verified by predicting the existing model test results.The research results show that the ultimate bearing capacity at 60° horizontal loading direction(one-bucket compression,two-bucket tension)is the smallest,and the overall bearing capacity of the foundation is controlled by the compressed bucket.When the self-weight load is less,the ultimate bearing capacity at 0° loading direction(two-bucket compression,one-bucket tension)of the tripod suction bucket increases with the increase of the self-weight load,and the pull-out capacity of the tensioned bucket determines the overall load bearing capacity of the foundation.When the self-weight load is larger,the ultimate bearing capacity of the foundation decreases and the compressive bearing capacity of the compressed bucket determines the overall bearing capacity of the foundation.The ultimate bearing capacity of the tripod suction foundation at 60° loading direction decreases as the self-weight load increases and the settlement of the compressed bucket determines the overall rotation angle of the tripod suction bucket.
NETL
NSTL
万方数据
