Stiffness and Damping of Clean Quartz Sand with Various Grain-Size Distribution Curves
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 140, Issue 3
Abstract
Approximately 240 resonant column (RC) tests have been performed on 26 clean quartz sands with piecewise linear, gap-graded, S-shaped, and other smoothly shaped grain-size distribution curves. For each material, the small-strain shear modulus, , the shear modulus degradation curves, , and the damping ratio curves, , were measured at different pressures and densities. The applicability of the extended empirical equations proposed by the authors in two previous publications, considering the influence of the uniformity coefficient, , of the grain-size distribution curve, has been inspected for the various tested materials. These equations were developed originally based on RC test data for linear gradations. It is demonstrated that the extended empirical equations work well also for most of the more complicated grain-size distribution curves tested in the current study.
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Acknowledgments
The presented study has been performed within the framework of the project “Influence of the grain size distribution curve on the dynamic properties of non-cohesive soils,” funded by the German Research Council (DFG, Project No. TR 218/17-1). The authors are grateful to DFG for the financial support.
References
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Wichtmann, T., and Triantafyllidis, T. (2009). “Influence of the grain-size distribution curve of quartz sand on the small strain shear modulus .” J. Geotech. Geoenviron. Eng., 1404–1418.
Wichtmann, T., and Triantafyllidis, T. (2013). “Effect of uniformity coefficient on and damping ratio of uniform to well-graded quartz sands.” J. Geotech. Geoenviron. Eng., 59–72.
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© 2013 American Society of Civil Engineers.
History
Received: Apr 3, 2012
Accepted: Jun 1, 2013
Published online: Jun 4, 2013
Published in print: Mar 1, 2014
Discussion open until: Apr 22, 2014
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