Optimization Analysis on Drill Auger of Soil Displacement Screw Pile

Abstract:

Based on ADINA,a 3D augersoil FEM model was developed to study the impact of pattern of the drill auger,screwpitch and the soil parameter on the required torque.Secondly,the model tests of auger squeezing into cementsoil mixture were done to get the optimized drill auger with least torque.At last,onsite test result of drill auger squeezed into ground verified the correctness of the numerical analysis and model test.The conclusions in this paper can provide a basis for optimal design of drill auger.