Effect of Load Inclination and Arrangement of Helical Plate on Load Carrying Capacity of Helical Pile

Pooja Jayendra Bhojani; Nitin Joshi

doi:10.55084/grinrey/ERT/978-81-964105-2-0_1

Authors

Pooja Jayendra Bhojani Department of Applied Mechanics and Structural Engineering, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara, India
Nitin Joshi Department of Applied Mechanics and Structural Engineering, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara, India

DOI:

https://doi.org/10.55084/grinrey/ERT/978-81-964105-2-0_1

Keywords:

Helical plates, Helical piles, Load Carrying Capacity of Pile, Structural Engineering

Abstract

Helical pile foundation is most suited for foundation expansion for vertical additions, strengthening of existing structures, communication tower support, solar and wind farms, bridge replacement, etc. In spite of large-scale applications; there are no standardized guidelines to create piles which are helical in shape. The objective of the study is to get comparative analysis of the helical pile’s capacity under compressive load applied at various inclinations (0°, 30°, 45°, 60° and 90° with vertical) and with two different arrangements of helical plates. Also, the experimental results were validated in PLAXIS 3D. The laboratory study was performed on model helical piles embedded in sand filled in model foundation test set-up of size 1.5 m square steel tank at 60% of relative density. The top portion of the load frame is of semi-circular shape to apply load at required inclinations. From the results it was worth mentioning that as the inclination increases from 0° to 90° with vertical axis; the capacity of helical pile to carry load decreases. Moreover, the pile with the lower bottom helix plate diameter has a higher capacity than the pile with the larger top helix plate diameter.