Behaviour of Embankments Resting on Soft Soils Reinforced by Concrete Piles
Volume Title: ICASGE2025
Paper ID : 1107-ICASGE-FULL (R1)
Authors
1Geotechnical Engineering, Faculty of Engineering, Alexandria University, Egypt
2Structural Engineering Department, Faculty of Engineering, Alexandria University, Egypt.
Abstract
The behaviour of embankments resting on soft soil reinforced by concrete piles was investigated using a two-dimensional (2D) finite element model, using Plaxis 8. The effect of pile length, pile diameter, and spacing between piles on the performance of the embankments were examined. The study highlights the effectiveness of using concrete piles to improve soft soils beneath embankments. The analysis showed that employing concrete piles enhanced the soil stiffness and transferred load through the weak stratum to a more competent stratum. Moreover, empirical formulas were derived to predict the settlement beneath the embankment, stress distribution within the soil, and load transfer to the concrete piles under embankments constructed on soft soil, focusing on time-dependent behaviour in this study. These formulas were normalized to expand their use for analyzing embankments on weak soils. Overall, this study may contribute to advancing predictive analyses and improving geotechnical engineering practices in designing embankments resting on soft soils.
Keywords
Subjects