Triaxial and Plane Strain Behavior of Natural Clay

by Yoginder P. Vaid, Res. Assoc.; Dept. of Civ. Engrg., Univ. of British Columbia, Vancouver, BC, Canada,
Richard G. Campanella, (M.ASCE), Assoc. Prof.; Dept. of Civ. Engrg., Univ. of British Columbia, BC,

Serial Information: Journal of the Geotechnical Engineering Division, 1974, Vol. 100, Issue 3, Pg. 207-224

Document Type: Journal Paper


Specimens of a saturated, undisturbed marine clay were K0 consolidated and subsequently sheared under triaxial and plane strain conditions using a variety of stress paths and drainage conditions. It was found that both the undrained strength and the angle of shearing resistance were slightly larger in plane strain than under the corresponding triaxial conditions. Methods to estimate strains in undrained plane strain shear from the results of triaxial tests under identical stress paths have been developed. An extended form of Rendulic's hypothesis was used successfully to predict volumetric strains under plane strain conditions using undrained triaxial results.

Subject Headings: Triaxial loads | Triaxial tests | Plane strain | Clays | Soil stress | Saturated soils | Marine clays | Consolidated soils

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