Impacts of Soil Contamination on the Response of Piles Foundation under a Combination of Loading

Authors

  • M. O. Karkush Civil Engineering Department, University of Baghdad, Iraq
Volume: 6 | Issue: 1 | Pages: 917-922 | February 2016 | https://doi.org/10.48084/etasr.616

Abstract

The behavior of single piles driven into contaminated clayey soil samples subjected to a combination of static axial and cyclic lateral loadings have been studied in this research. A laboratory model was manufactured especially for studying such behavior. A solid circular cross sectional area pile of diameter 19 mm and made from aluminum, the pile was embedded into the soil with an eccentricity to embedded length (e/L) ratio of 0.334. The intact soil samples and industrial wastewater were obtained from the center of Iraq. The industrial wastewater is a byproduct disposed from Musayib thermal electric power plant. The intact clayey soil samples were synthetically contaminated with four percentages of 10, 20, 40 and 100% from the weight of water used in the soaking process which continued for a period of 30 days. The different percentages of contaminant concentrations have significant effects on the lateral load-displacement relation of the piles subjected to a combination of axial and lateral loadings. The vertical displacement under the same vertical load increased by 5–95%, the axial strength of piles decreased by 10–34% and the lateral-bearing capacity of the piles decreased by 10–34% with increasing the percentage of contamination from 10 to 100%. The ratio of permanent lateral displacement to the total lateral displacement was increased by 23–27% when the concentration of contaminant increased by 10-100%. Generally, the application of axial loading increases the lateral-bearing capacity of piles, and reduces the total lateral displacement.

Keywords:

industrial wastewater, soil contamination, clayey soil, axial loading, cyclic lateral loading, pile foundation

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References

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M. O. Karkush, M. S. Abdul Kareem, “Lateral load-carrying capacity of a pile foundation in contaminated soils” (unpublished)

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How to Cite

[1]
M. O. Karkush, “Impacts of Soil Contamination on the Response of Piles Foundation under a Combination of Loading”, Eng. Technol. Appl. Sci. Res., vol. 6, no. 1, pp. 917–922, Feb. 2016.

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