The Behavior of Horizontal Anchor Foundations Embedded in Sand under Uplift and Lateral Loads
Publication: International Journal of Geomechanics
Volume 24, Issue 6
Abstract
The existing research on anchor foundations has predominantly focused on their axial load-carrying capacity, disregarding their resistance to the combined uplift and lateral forces during operation. To address this gap, the present study employs a three-dimensional finite-difference analysis to examine the behavior of horizontal anchor foundations buried in sand under the influence of uplift and lateral loads. The novelty of this work lies in the application of combined loading on the shaft head and the subsequent evaluation of both vertical and horizontal displacements of the foundation. The results reveal that the displacements are notably more significant in the horizontal direction. Furthermore, the paper presents a detailed analysis of the foundation’s failure mechanisms under various combinations of vertical and horizontal forces. It is observed that pure vertical forces induce an uplift shear failure, whereas pure horizontal forces lead to a rotational failure. Based on the results, a failure envelope in the V:H loading plane is proposed for the horizontal anchor foundation subjected to oblique loads.
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Data Availability Statement
Data generated or analyzed during this study are available from the corresponding author upon reasonable request.
Acknowledgments
This study is a part of the research project titled “Analysis of Performance of Inclined Plate Anchors Embedded in Geosynthetic Reinforced Soil for Transmission Tower Foundations” funded by the Central Power Research Institute, Bangalore (File number: CPRI0007) at the Department of Civil Engineering, Indian Institute of Science, Bangalore. The authors gratefully acknowledge the financial support provided by CPRI, Bangalore, for this study.
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Published In
International Journal of Geomechanics
Volume 24 • Issue 6 • June 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Mar 30, 2023
Accepted: Dec 13, 2023
Published online: Mar 27, 2024
Published in print: Jun 1, 2024
Discussion open until: Aug 27, 2024
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