Finite Element Analysis Of The Revetment Structure Supported By Floating And Pressing Principle

The revetment structure supported by floating and pressing principle is a new type of structure which can be applied to soft clay foundation.This structure is independently developed by CCCC Third Harbor Consultants CO.LTD.It is composed of five bottomless cylinders,covered plates and upper structure.The structure combines the characteristics of some other new structures,such as the embedded large-diameter cylinder structure,the cellular steel sheet pile structure,the bucket foundation and the cylindrical breakwater.As a result,it has the advantages of good stability,suitable for soft soil foundation and convenient on construction and transportation.In this paper,the finite element method is used to establish the model and analyze the revetment structure.First,the finite element software ABAQUS is used to establish the three-dimensional finite element model of the structure.This paper selects the appropriate soil constitutive and parameter,suitable interaction and reasonable boundary conditions,in order to simulate the structure accurately.What’s more,through the analysis on deformation of the whole structure under the load condition,this model is proved to be reasonable and effective.Secondly,based on the above finite element model,the stress and displacement of the structure are analyzed and studied,and the stability analysis of the structure is carried out by the strength reduction FEM.Besides,the safety factor of the structure is obtained.Finally,through the parametric analysis,the influence of the diameter,height and spacing of the steel cylinders on the deformation and stress of the whole structure.In this paper,the study on the stress,deformation and stability of this structure is carried out by the finite element method,which is based on the Shanghai beach enclosure project.The feasibility and reliability of the method for the simulation and calculation of the structure are verified,and the following work for the research on this structure will be carried on this basis.