Influence of helical plate diameter on bearing capacity based on laboratory study

Abstract

Generally, design of the bearing capacity of helical piles is similar to the behavior of deep pile foundations. From the previous research, it is found that the reinforcing helix plate causes the bearing capacity to increase as the diameter of helix plate increases. But the tendency is not the same as the increase in the diameter of the deep pile foundations. This article studies the influence of helical plate diameter on bearing capacity under axial compression based on laboratory study and then compares with the design results. By increasing the diameter of the helix plate, the end bearing capacity of the helical pile is increased in an exponential manner according to the increase in the diameter of the helix plate. The skin friction is constant.