Research Article
Dec 1972
Time Effects on Dynamic Shear Modulus of Clays
Publication: Journal of the Soil Mechanics and Foundations Division
Volume 98, Issue 12
Abstract
A Hardin oscillator was used to apply a steady-state, torsional vibratory load to remolded specimens of kaolinite and calcium bentonite inside a triaxial chamber and under an isotropic consolidation pressure. The principles of the resonant column test were used to determine the dynamic shear modulus. After completion of primary consolidation, the response was studied as a function of time for both drained and undrained conditions. Regression analyses were performed on these data and relationships are presented which show the effects that void ratio, effective stress, and time have on the dynamic response of these two clays. The shear modulus was shown to increase with increasing pressure, decreasing void ratio and time for both materials. This increase was approximately 10% of kaolinite and 40% for bentonite per logarithmic cycle of time after completion of primary consolidation for constant effective stress.
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Information
Published In
Journal of the Soil Mechanics and Foundations Division
Volume 98 • Issue 12 • December 1972
Pages: 1359 - 1373
Copyright
© 1972 American Society of Civil Engineers.
History
Published in print: Dec 1972
Published online: Feb 12, 2021
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William F. Marcuson III, AM.ASCE
Engr., Soil Dynamics Br., Soils Div., U.S. Army Engineer Waterways Experiment Station, Vicksburg, Miss.
Harvey E. Wahls, M.ASCE
Prof., Dept. of Civ. Engrg., North Carolina State Univ., Raleigh, N.C.
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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.