Computer Simulation Analysis of SDDC Pile Deformation Based on FLAC3D

Based on the engineering examples, the bearing capacity and deformation characteristics of the pile in the depth of the hole in the deep filling area are analyzed. The calculation results show that the numerical calculation results have a good agreement with the field in-situ test results under the reasonable consideration of the soil compaction between piles, Under different loads, the single vertical deformation of the pile is large at the top of the pile, and the attenuates rapidly with the increase of pile buried depth. Combined with the analysis results of the pile displacement difference and maximum deformation ratio and the slope of P-S curve, the main deformation area of the SDDC pile body is within 1/3 of the pile top.