Analysis of the performance of helical piles under various load and geometry conditions

Abstract

The study by [7] analyzed the load capacity of moderately sized helical piles, considering configurations such as shaft diameter, plate diameter, and penetration depth. The results showed that increasing the shaft diameter and modifying the helical plates significantly improved load capacity. The configuration of the plates had a greater impact on performance than the shaft diameter. Other studies complemented these findings, such as [8], which emphasized the importance of plate position for pull-out resistance. Study [9] highlighted the impact of helix pitch on lateral load capacity, while [10] examined the spacing between the helices and its effect on load distribution. Helix deflection, as shown by [11], was also a critical factor in pile performance. Additionally, studies on pile groups [13] and pressure grouted helical piles [14] provided valuable insights for optimizing the design of these foundations. Research by [15] on combined loads revealed a positive correlation between helix diameter and load capacity. Overall, the studies demonstrated that geometric factors and soil characteristics are essential for optimizing the performance of helical piles, especially in applications in challenging environments like offshore wind platforms.