Numerical simulation study on the bearing characteristics of long spiral drilled pressure grouting piles

Abstract

Long auger boring filling pile is used as a new construction technology for deep pile foundation, which has the advantage of pile foundation and other special advantages. Considering the particularity of the geological conditions in the Changwei area, the bearing characteristics of long spiral bored concrete piles are studied with MIDAS/GTS software. Compared with other piles in the displacement and stress variation, the numerical analysis of Long Auger Bored Cast with pressure concrete pile has the advantage. The results show that the GTS is a good simulation of the static loading test of the pile, just a little bigger than the calculated value of experimental values. With the increase of pile top load, the influence of this error is smaller and smaller in the same pile diameter and geological conditions, and the long auger bored pile is much higher than the round bearing capacity of the concrete pile.