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contributor authorAmir Akbari Garakani
contributor authorBahareh Heidari
contributor authorSahar Mokhtari Jozani
contributor authorOmid Ghasemi-Fare
date accessioned2022-05-07T21:07:14Z
date available2022-05-07T21:07:14Z
date issued2022-1-1
identifier other(ASCE)GM.1943-5622.0002223.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4283352
description abstractIn this paper, the axial ultimate bearing capacity of fixed-head concrete energy piles is studied considering various soils and thermomechanical loads, through numerical and analytical models. Accordingly, an axisymmetric numerical approach was adopted using the finite-element method by considering temperature-dependent soil and pile–soil interface parameters, and the results were validated using experimental datasets. Quantitative and statistical comparisons showed an acceptable agreement between the numerical predictions and experimental observations. Then, a vast numerical parametric study was carried out on various soil strength parameters and different thermomechanical conditions to evaluate the changes in compressive/tensile ultimate bearing capacity of the fixed-head energy piles in dry and saturated soils. The results showed that temperature changes and environmental conditions have significant effects on the ultimate load capacity of energy piles. Thereafter, different analytical approaches were developed for various soil types and thermomechanical loading conditions to assess the soil–structure and thermomechanical interactions between the examined energy piles and the surrounding soil. Accordingly, by comparing the obtained results from the analytical and numerical solutions, the best analytical approach for each soil type and load condition was proposed. Finally, by performing an analytical sensitivity study on the geometrical aspects of the examined energy piles, the remarkable effects of the pile diameter and pile length on the ultimate load capacity of energy piles were revealed.
publisherASCE
titleNumerical and Analytical Study on Axial Ultimate Bearing Capacity of Fixed-Head Energy Piles in Different Soils
typeJournal Paper
journal volume22
journal issue1
journal titleInternational Journal of Geomechanics
identifier doi10.1061/(ASCE)GM.1943-5622.0002223
journal fristpage04021258
journal lastpage04021258-18
page18
treeInternational Journal of Geomechanics:;2022:;Volume ( 022 ):;issue: 001
contenttypeFulltext


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