Shire, T. and Standing, J. (2021) Strength and stiffness properties of an unsaturated clayey silt: experimental study at high degrees of saturation. International Journal of Geomechanics, 21(7), 04021094. (doi: 10.1061/(ASCE)GM.1943-5622.0002049)
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Abstract
Unsaturated constant water content triaxial compression tests with suction measurement, using an Imperial College tensiometer, and saturated consolidated undrained tests were conducted on reconstituted brickearth, a naturally unsaturated clayey silt from London. The results show that the saturated effective stress can be applied to the critical state line (CSL) and normalized stiffness for unsaturated brickearth but that Bishop's effective stress variable gives a slightly improved CSL. The stiffness derived from local instrumentation demonstrates that Bishop's effective stress is also beneficial for normalizing the stiffness modulus over the small-strain range (up to axial strains of about 3%).
Item Type: | Articles |
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Additional Information: | The authors are grateful to the Engineering and Physical Sciences Research Council (EPSRC) who funded the first author through a Doctoral Prize Fellowship. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Shire, Dr Thomas |
Authors: | Shire, T., and Standing, J. |
College/School: | College of Science and Engineering > School of Engineering > Infrastructure and Environment |
Journal Name: | International Journal of Geomechanics |
Publisher: | American Society of Civil Engineers |
ISSN: | 1532-3641 |
ISSN (Online): | 1943-5622 |
Published Online: | 21 April 2021 |
Copyright Holders: | Copyright © 2021 American Society of Civil Engineers |
First Published: | First published in International Journal of Geomechanics 21(7): 04021094 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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