Correlation between Cyclic Resistance Ratios of Intact and Reconstituted Offshore Saturated Sands and Silts with the Same Shear Wave Velocity
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 132, Issue 12
Abstract
The cyclic liquefaction resistance of intact medium dense specimens of sands and silts obtained from offshore platform sites was compared to that of specimens reconstituted to the same values of shear wave velocity. The shear wave velocity was measured using a new system that is comprised of torsional piezoelectric ceramic ring transducers mounted in a triaxial cell, a multiwave measuring device, and special watertight connectors. The relationship between cyclic resistance ratio and the number of cycles to liquefaction of intact and reconstituted specimens was compared at the same values of consolidation pressure and shear wave velocity. There was good agreement between cyclic resistance ratios of intact and reconstituted specimens with similar values of shear wave velocity if liquefaction is defined as peak-to-peak axial strain. The results of this study support the hypothesis that the cyclic liquefaction resistance of reconstituted specimens may be restored to in situ conditions when their shear wave velocity is restored to in situ values.
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Acknowledgments
Financial support for the work described in this paper was provided by 863 Program of MOST of China (2002AA615080) and Science Foundation of Tianjin (023607511). Dr. Guoyong Cheng conducted many of the laboratory tests. Their assistance is acknowledged with thanks and appreciation.
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Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 132 • Issue 12 • December 2006
Pages: 1574 - 1580
Copyright
© 2006 ASCE.
History
Received: Jan 31, 2005
Accepted: Jun 12, 2006
Published online: Dec 1, 2006
Published in print: Dec 2006
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