BEM-ALEM Modeling of Plate–Soil Interaction for Rigid Circular Foundation in Layered Saturated Soils Subjected to Mechanical or Thermal Load
Publication: Journal of Engineering Mechanics
Volume 147, Issue 2
Abstract
Circular plate foundation is an essential foundation in the engineering of marine anchor plates, oil storage tanks, and cell towers. These circular plates are usually treated as the rigid circular foundation (RCF) because the stiffness of these foundations is much larger than that of the surrounding soils. This paper develops a boundary element method (BEM) and analytical layer element method (ALEM) coupling model to look into the time-dependent behavior of plate–soil interaction subjected to mechanical or thermal load. The solutions for this interaction problem were obtained by applying BEM, which took the ALEM solution of layered saturated soils (LSS) due to an interior ring mechanical or thermal load as the fundamental solution. Detailed verifications against numerical solutions and experimental results were provided to confirm the robustness of the present model, followed by extensive parametric studies to analyze the influence of soil layering characteristics on plate–soil interaction. It is evident that the present model can be utilized to evaluate the time-dependent behavior of the RCF in LSS subjected to both the mechanical and thermal loads.
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Data Availability Statement
All data, models, or code generated or used during the study are available from the corresponding author by request.
Acknowledgments
The authors acknowledge the support of the National Natural Science Foundation of China (Nos. 52078458, 51708494 and 41907230) and the Fundamental Research Funds for the Central Universities (No. 2020QNA4032). The support from Prof. Z.Y. Ai at Tongji University on the development of ALEM is highly appreciated.
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Published In
Journal of Engineering Mechanics
Volume 147 • Issue 2 • February 2021
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Nov 22, 2019
Accepted: Sep 10, 2020
Published online: Nov 27, 2020
Published in print: Feb 1, 2021
Discussion open until: Apr 27, 2021
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