Study on Pullout Behaviour of Inclined Composite Piles

Abstract

Understanding the pile behaviour and predicting the capacity of piles under uplift loading are important topics in foundation design. The study revealed that the behaviour of single piles under uplift loading depends mainly on both the pile embedment depth-to-diameter ratio and the soil properties. This research proposes an innovative solution for slope stabilization with less environmental footprint: AKARPILES. This study focused on stabilizing surficial slope failure. The idea of AKARPILES was generated from the tree roots system in slope stabilization. After the piles are installed in the slope and intercepting the slip plane, grout was pumped in and discharged through holes on the piles. The grout then filled the pores in the soil with random flow within the slip zone. A series of tests were conducted on the single-pile reinforced slope under vertical slope crest loading condition considering different slope gradients and nail designs.