One-Dimensional Viscous Behavior of Clay and Its Constitutive Modeling
Publication: International Journal of Geomechanics
Volume 9, Issue 2
Abstract
One-dimensional viscous behavior of clay was evaluated by performing drained one-dimensional compression tests, and drained triaxial compression tests. In both types of tests, the strain rate was changed stepwise many times and creep tests were performed several times during otherwise monotonic primary loading, unloading, and reloading. The specimens were: (1) saturated specimens of undisturbed clays; (2) normally consolidated saturated clay specimens reconstituted by consolidating slurry of clay chips from undisturbed samples and clay powder; and (3) specimens prepared by compacting wet, air-dried, and oven-dried powder of several different clay types. One-dimensional viscous behavior, which can be described with value of clay, is significant in all types of clay specimens. The observed viscous behavior of clay specimens is successfully simulated by a nonlinear three-component rheology model of the isotach type.
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Acknowledgments
The first writer would like to express his sincere thanks to Professor Tatsuoka Fumio, Department of Civil Engineering, Tokyo University of Science, for his erudite guidance and discussions. The writers thank Mr. Ishiahra M. and Mr. Nishi T. who developed the computer program for the simulation. The writers authors acknowledge gratefully the support provided by the Ministry of Education, Government, Science and Culture of Japan, SRF for ROCS(SEM), NSFC(No.UNSPECIFIED506790560) and NCET(UNSPECIFIED06-0378).
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Information & Authors
Information
Published In
International Journal of Geomechanics
Volume 9 • Issue 2 • March 2009
Pages: 43 - 51
Copyright
© 2009 ASCE.
History
Received: Sep 1, 2006
Accepted: Sep 17, 2008
Published online: Mar 1, 2009
Published in print: Mar 2009
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