Semianalytical Analysis of Creep and Thermal Consolidation Behaviors in Layered Saturated Clays
Publication: International Journal of Geomechanics
Volume 20, Issue 4
Abstract
The creep and consolidation behavior of clays subjected to mechanical or thermal loads is of fundamental interest in the applications of energy piles, geothermal extraction, and geological waste disposal. This paper presents a semianalytical method to analyze the creep and thermal consolidation behaviors of layered saturated clays due to surface loads. With the aid of typical viscoelastic models (e.g., Kelvin, Maxwell, or Merchant), the correspondence principle, and the Laplace-Hankel transform, viscoelastic solutions for the long-term behavior of clays are derived analytically. Typical examples are shown to verify the method and compare the results of the presented solutions in describing creep behaviors. It is evident that the method is able to predict the given examples accurately. Compared with the elastic, Kelvin, and Maxwell models, the Merchant model simulates the creep and thermal consolidation behaviors of clays appropriately.
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Data Availability Statement
Some or 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 (Grant No. 51708494) and Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences (No. Y807ki1001).
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Published In
International Journal of Geomechanics
Volume 20 • Issue 4 • April 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: May 10, 2019
Accepted: Aug 29, 2019
Published online: Jan 22, 2020
Published in print: Apr 1, 2020
Discussion open until: Jun 22, 2020
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