Thermally Induced Long-Term Displacement of Thermoactive Piles
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 140, Issue 5
Abstract
The long-term displacement of thermoactive piles subjected to static load and thermal cycles is analyzed using the numerical solution of the one-dimensional load-transfer method modified to account for thermoelastic effects. Numerical results show that thermal cycles cause changes in load transfer and may lead to gradual plastic displacement accumulation due to the mobilization of side shear resistance with the number of thermal cycles. Displacement accumulation depends on the static factor of safety, the amplitude of the thermal cycles, and the ratio between the shaft resistance and the ultimate pile capacity.
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Acknowledgments
Support for this research was provided by the Fulbright U.S.-Chile Equal Opportunities Scholarship Program, the U.S. Department of Energy, and the Goizueta Foundation. Francisco Santamarina edited the manuscript.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 140 • Issue 5 • May 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Dec 22, 2012
Accepted: Dec 30, 2013
Published online: Jan 27, 2014
Published in print: May 1, 2014
Discussion open until: Jun 27, 2014
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