Influence of Pore Fluid Viscosity on the Dynamic Properties of an Artificial Clay
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 137, Issue 12
Abstract
This paper presents the results of vane shear, laboratory compaction, isotropic consolidation, cyclic triaxial, bender element, and resonant-column tests that were performed to characterize the dynamic properties of an artificial soil called modified glyben. Modified glyben comprises a mixture of glycerin, water, and bentonite that can be used in scaled model tests performed at or in a centrifuge to study seismic soil–structure interaction. The results described in this paper show that the vane shear strength, coefficient of consolidation, dynamic modulus, and damping ratio are strongly influenced by the viscosity of the pore fluid which can be varied by altering the ratio of glycerin-to-water. In addition, the properties of modified glyben are stable during prolonged exposure to air and multiple largestrain load cycles making it a suitable model soil for scaled model tests involving seismic soil–structure interaction.
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Acknowledgments
The research reported in this paper has been funded by grants from the National Research Council of Canada and the University of Western Ontario Academic Development Fund. The help by Dr. Zahid Khan during resonant-column tests is appreciated.
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Information & Authors
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 137 • Issue 12 • December 2011
Pages: 1190 - 1201
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Jun 10, 2009
Accepted: Apr 12, 2011
Published online: Apr 14, 2011
Published in print: Dec 1, 2011
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