Investigating the Behavior of Single Pile and Adjacent Pile Group of Sandy Slope under Uplift Loading

Authors

1 Department of Civil Engineering, Ahwaz Branch, Islamic Azad University, Ahwaz, Iran

2 Department of Civil Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran.

10.22034/ceej.2024.61105.2343

Abstract

The pile is commonly adopted to transfer a part of the building and civil engineering structural loads into deeper layers with higher stiffness and thereby allow the reduction of total settlement and differential settlement of structures in a very economical way. Piles are often used in groups and the load transfer mechanism in group piles is generally different from that of a single pile due to the pile-soil and pile-pile interaction effects which has been described by previous researchers. Previous studies indicated that the interaction between soil and structure has a significant effect on the responses of foundation and structure. In the past researches, various researchers investigated the effect of various factors such as relative density of soil, pile embedded length ratio, pile distance from each other on the uplift bearing capacity of the pile. The research results showed that the skin bearing capacity of the pile under compressive load is more than the uplift load, and this issue increases the importance of examining the uplift bearing capacity of the pile separately No research has been done regarding the tensile load capacity of single piles and the group of piles adjacent to the slope, so investigating the behavior of the group of piles adjacent to the slope under uplift loading is of particular importance. The main purpose of this research is to investigate the uplift capacity and efficiency coefficient of the pile group adjacent to the dry sandy slope. In this investigation, the effect of various factors such as the effects of the direction of the linear pile group in relation to the slope and the arrangement of the pile group, the relative density of the soil and the embedded length of the pile on the uplift bearing capacity and the efficiency coefficient of the pile group adjacent to the dry sandy slope have been investigated. To achieve this goal, a series of laboratory tests have been conducted on the physical model of pile group near the dry sandy slope and the results have been discussed.

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References

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Journal of Civil and Environmental Engineering
Volume 55, Issue 118 - Serial Number 118
Spring 2025
June 2025
Pages 25-34

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