Finite/infinite element coupling method for analysis on the interaction of soil-foundation system

To study the soil-foundation interaction,the model of finite/infinite element coupling method is set up in this paper.Through studying the same system,finite element method and finite/infinite element coupling method are used to analyze the influence on the(result) what is concluded by the different vertical field and horizontal field of finite element in the finite/infinite element system.The calculation range of finite element is determined,and it is shown by the calculation that the finite/infinite element coupling method has high accuracy and significant economy to study the interaction.