Hyperbolic Fit Method for Interpretation of Piezocone Dissipation Tests
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 140, Issue 1
Abstract
A simple hyperbolic equation is used to best fit measured piezocone pore pressure dissipation data. The same hyperbolic equation, albeit with slight differences in its coefficients, fits well the existing theoretical solutions/charts for piezocone dissipation response. Coefficient of consolidation can be conveniently expressed in terms of the hyperbolic parameters corresponding to the measured data and the existing solution charts. Field piezocone dissipation test data for Busan clay is successfully fitted using the provided hyperbolic equation. The values thus determined over a range of degree of consolidation () compare well with values obtained by the traditional direct use of the same existing theoretical solutions or charts.
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Acknowledgments
This work was supported by the Korea Science and Engineering Foundation (KOSEF) NRL Program (No. R0A-2008-000-20076-0) and Mid-Career Research Program (No. 2013005430) grant funded by the Korea government (MEST) and by the graduate students at Dong-A University, Busan, who provided valuable assistance with the laboratory and field tests.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 140 • Issue 1 • January 2014
Pages: 251 - 254
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Mar 17, 2012
Accepted: May 14, 2013
Published online: May 16, 2013
Published in print: Jan 1, 2014
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