Numerical Investigation of Axial Monotonic Performance of Reinforced Helical Pulldown Micropiles
Publication: International Journal of Geomechanics
Volume 18, Issue 10
Abstract
The axial compression behavior of reinforced helical pulldown micropiles (RHPMs) and fiber-reinforced polymer (FRP)-RHPMs is investigated through three-dimensional finite-element (FE) analysis. The model was calibrated using the results of full-scale load tests conducted by the authors. The calibrated numerical model was then used to conduct a parametric study to examine the behavior of RHPMs and FRP-RHPMs in different soil conditions. The numerical analysis provided important insights into the load-transfer mechanism, shaft resistance, and factors influencing the pile response. Based on the results of the numerical simulations coupled with experimental data, design guidelines are developed for the implementation of RHMPs and FRP-RHPMs in foundation design.
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Acknowledgments
The authors would like to thank EBS Engineering and Construction Ltd. for funding the experimental program. In particular, the authors would like to extend their gratitude to Paul Sunseth, Dino Vito, and Roy Frater.
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Information & Authors
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Published In
International Journal of Geomechanics
Volume 18 • Issue 10 • October 2018
Copyright
© 2018 American Society of Civil Engineers.
History
Received: Jun 14, 2017
Accepted: Dec 12, 2017
Published online: Jul 17, 2018
Published in print: Oct 1, 2018
Discussion open until: Dec 17, 2018
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