Plane-Strain Undrained Strength of Compacted Clay

by Kenneth L. Lee, (A.M.ASCE), Assoc. Prof.; Mech. and Struct. Dept., School of Engrg. and Appl. Sci., Univ. of California, Los Angeles, CA,
Robert J. Shubeck, (A.M.ASCE), Asst. Civ. Engr.; South California Edison Co., Los Angeles, CA; former Grad. Res. Asst., UCLA,

Serial Information: Journal of the Soil Mechanics and Foundations Division, 1971, Vol. 97, Issue 1, Pg. 219-234

Document Type: Journal Paper


Comparative triaxial and plane strain tests were performed on samples of compacted kaolinite and a compacted silty clay at confining pressures up to 1,500 psi. The stress-strain curves indicated that the plane strain samples were generally more brittle than the triaxial samples. However, both types of samples consolidated under the same major principal stress developed the same final water content and the same peak strength on a total or an effective stress basis.

Subject Headings: Soil strength | Compacted soils | Soil pressure | Stress strain relations | Professional societies | Plane strain | Clays | Triaxial tests

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