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Strength and stiffness properties of an unsaturated clayey silt: experimental study at high degrees of saturation

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Title: Strength and stiffness properties of an unsaturated clayey silt: experimental study at high degrees of saturation
Authors: Shire, T
Standing, J
Item Type: Journal Article
Abstract: Unsaturated constant water content triaxial compression tests with suction measurement using an Imperial College Tensiometer, and saturated consolidated undrained tests were carried out 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 normalised 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 normalising the stiffness 16modulus over the small strain range (up to axial strainsofabout3%).
Date of Acceptance: 19-Jan-2021
URI: http://hdl.handle.net/10044/1/87046
ISSN: 1532-3641
Publisher: American Society of Civil Engineers
Journal / Book Title: International Journal of Geomechanics (ASCE)
Copyright Statement: This paper is embargoed until publication.
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: N/A
Keywords: General Mathematics
0905 Civil Engineering
0914 Resources Engineering and Extractive Metallurgy
Publication Status: Accepted
Embargo Date: publication subject to indefinite embargo
Appears in Collections:Civil and Environmental Engineering