Numerical Investigation of Helical Piles Performance in Stabilization of Earth Slopes

One of the major concerns of geotechnical engineering is to stabilize earth slopes and propose new methods for this purpose. The application of numerical and analytical methods for slope stabilization using piles is a conventional method discussed by various researchers. Nowadays the application of a special type of piles so called “helical pile”, have been increased. This foundation system has been successfully employed at several sites. Helical piles may be a cost-effective alternative to conventional pile materials. In this research, the performance of helical piles in slope stabilization has been studied using finite element analysis and strength reduction method by ABAQUS V.6.13.1. The effect of different parameters such as helical pile diameters, helical plate spaces, and pile lengths have been investigated. The effect of 1, 2 and 3 rows of piles along the slope is studied as well.