Nonlinear Consolidation Analysis of Natural Structured Clays under Time-Dependent Loading
Publication: International Journal of Geomechanics
Volume 18, Issue 2
Abstract
Numerous nonlinear theories of consolidation for clay soils have been proposed in the past. Most of them are based on constitutive models of clays whose structural property is neglected, yet the natural structured soils are widely distributed around the world. This study investigated the nonlinear consolidation of natural structured clays using a semianalytical method. Variable permeability and compressibility were considered, as were variable overburden pressure and yield stress with depth and arbitrary loading with time. Simplified models were developed, and the process of consolidation was analyzed in detail. Calculation methods and solutions were determined. Then, a computational program was developed for verification and calculation. The present regressive solutions were found to compare well with the existing solutions, indicating that the solutions are correct and reliable. Finally, the nonlinear consolidation behavior influenced by several factors was investigated using parametric analysis.
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Acknowledgments
This research is supported by the National Natural Science Foundation of China (Grants 51778572, 51278453, and 51179170), Doctoral Fund of Ministry of Education of China (Grant 20120101110029), and Zhejiang Provincial Natural Science Foundation of China (Grant LY14E080016). These supports are gratefully acknowledged.
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Published In
International Journal of Geomechanics
Volume 18 • Issue 2 • February 2018
Copyright
© 2017 American Society of Civil Engineers.
History
Received: Mar 23, 2017
Accepted: Aug 11, 2017
Published online: Nov 21, 2017
Published in print: Feb 1, 2018
Discussion open until: Apr 21, 2018
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