Settlement Calculation And Finite Element Analysis Of CFG Pile Composite Foundation Based On A Project

With the development of technology and the wide application of composite foundation,CFG pile composite foundation has made great progress in both theoretical research and engineering practice.The research on the theory of settlement and deformation of composite foundation,to a certain extent,still lags behind the engineering practice.At present,several calculation methods for the settlement of composite foundation are widely used in the engineering practice,which provide a theoretical basis for engineering practice.However,there are some problems and difficulties in the settlement calculation method and theoretical formula.Therefore,it is of great practical significance to study the settlement of CFG pile composite foundation.The CFG pile composite foundation was studied as the research object in this paper in Tangshan City,the settlement calculation model of CFG pile composite foundation was established by using ANSYS.It is analyzed the influence of parameter change on CFG pile composite foundation settlement.The main contents have been done in this paper as follows:The numerical model for the settlement calculation of CFG pile composite foundation was established by using ANSYS,and carried on the simulation computation,the calculation results were compared with the actual measurement results to be sure the accuracy of the model;According to the model established by finite element,it is analyzed that the effects of the settlement and pile stress on the changes by pile length,pile diameter,pile spacing and pile strength of CFG pile composite foundation.Using the method of numerical simulation,it analyzed that the changes to the design scheme in the project of CFG pile composite foundation,compared with different design and conclusions,reach the optimization suggestions based on the practical engineering.