Research Article
Apr 1980
In-Situ Volume-Change Properties by Electro-Osmosis - Theory
Publication: Journal of the Geotechnical Engineering Division
Volume 106, Issue 4
Abstract
The basic concept involves incorporation of a simple electrode system in a field probe, measurement of pore-water pressure changes at the electrodes as a function of time in response to a DC field, and measurement of the electro-osmotic flow rate of water. Mathematical solutions for pore-water pressure responses for different electrode geometry and drainage conditions at the electrodes are presented in dimensionless form, so that measurement of pore-water pressure responses at the electrodes as a function of time for a relatively short period should enable computation of the coefficient of consolidation, cv and the ratio of the coefficient of electro-osmotic conductivity to hydraulic conductivity, ke/kh. Unique solutions for ke, kh, and the coefficient of volume change, mv, are shown to be possible using measured electro-osmotic flow rate in a closed loop between electrodes and comparison with theory.
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Published In
Journal of the Geotechnical Engineering Division
Volume 106 • Issue 4 • April 1980
Pages: 347 - 365
Copyright
© 1980 American Society of Civil Engineers.
History
Published in print: Apr 1980
Published online: Feb 11, 2021
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Authors
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Sunirmal Banerjee, AM.ASCE
Sr. Geotechnical Engr., International Engineering Co., Inc., San Francisco, Calif
James K. Mitchell, F.ASCE
Prof. and Chmn. of Civ. Engrg. Dept., Univ. of California at Berkeley, Berkeley, Calif
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.