Discussion on the Grid Densities on the Influence of the Internal Force and Displacement of Thepile

Abstract

The paper established a composite foundation model, from top to bottom, the model is the backplane of structure. Using FLAC3D4.0 for numerical simulation, by changing the pile tip in upper, middle and lower in of soil underlying grid , analyze the settlement of the pile and pile axial force with the variation of mesh density and pile length, Therefore recommended that simulate the actual project will pile grid, but the appropriate grid density mainly depends on the measured value or experimental values of simulate project.