Experimental Response of Piles in Sand under Compound Motion
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 135, Issue 6
Abstract
This paper describes a fundamental experimental study on the vertical, horizontal, and rocking dynamic behavior of single pile foundations in granular soils. Aimed at generating an extensive experimental database with sufficient parametric variations to clarify a number of issues, multiple series of canonical small-strain forced-vibration centrifuge tests were performed on two model piles using the technique of random vibration and impact loading. Correlated well with vertical- and horizontal-centric dynamic tests within the experimental program, a novel hybrid-mode test method by means of eccentric excitation is validated and employed for the characterization of the foundation responses in general planar motion. A large set of experimental data for different length scales were generated and synthesized in the frequency domain in the form of directional force-response transfer functions. By virtue of the physical measurements, the validity and limitations of two fundamental elastodynamic pile solutions pertaining to the physical dynamic soil-foundation problem are also evaluated.
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Acknowledgments
The financial support provided by the National Science Foundation through Grant Nos. NSFCMS 9712835 and NSF0201353 is gratefully acknowledged.
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Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 135 • Issue 6 • June 2009
Pages: 799 - 808
Copyright
© 2009 ASCE.
History
Received: Jan 15, 2008
Accepted: Sep 22, 2008
Published online: May 15, 2009
Published in print: Jun 2009
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