Research Article | OPEN ACCESS
Studying the Effects of Pile Load on Negative Skin Friction in Basrah Governorate
Haider S. Al-Jubair and Jasim M. Al-Battat
Department of Civil Engineering, College of Engineering, University of Basrah, Basrah, Iraq
Research Journal of Applied Sciences, Engineering and Technology 2021 2:33-42
Received: January 6, 2020 | Accepted: August 17, 2020 | Published: May 25, 2021
Abstract
The seriousness of the phenomenon of negative skin friction on piles penetrating Basrah soil in Iraq is investigated via the finite element method. The most common (0.285×0.285 m) precast driven and (0.8 m diameter) bored piles, are analyzed under the structural loads and down drag forces due to recent fill. A two-dimensional program adopting nonlinear constitutive relations for soil layers is utilized. The results revealed a great decrease in negative skin stress and pile length on which the phenomenon is to act upon, due to the application of structural loads. Reductions in drag forces as much as (86%) for driven piles and (96%) for bored piles are recorded in some sites. It is also concluded that, overlooking the negative skin friction does not result in failure and that more economical pile capacities could be adopted.
Keywords:
Finite element modeling, negative skin friction, piles in the consolidated ground, piles penetrating layered soil, recent fill on soft soil,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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