| the pile foundation of frame structure is studied as the research object in this paper,the finite element model of foundation pit,pile foundation and soil is established,through the analysis of the monitoring data of a practical project in Tangshan,the finite element software is used to calculate the numerical model,the basic law of the influence of the excavation on the internal force and deformation of the pile foundation of the adjacent frame structure is summarized.The selection of the retaining structure of foundation pit is closely related to the degree of the surrounding environment.,the cantilever retaining structure is selected in this paper,the finite element software Plaxis is used to establish the numerical model of the pile foundation with different pile length,different distance and different stiffness,through analysis and calculation,the deformation law and the change of internal force of the pile foundation are obtained. |
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