Consolidation and Strength Properties of a Clay

by Tien H. Wu, (F.ASCE), Prof. of Civ. Engrg.; Ohio State Univ., Columbus, Ohio,
Elfatih M. Ali, Grad. Research Assoc.; Ohio State Univ., Columbus, Ohio,
Nien Y. Chang, Asst. Prof. of Civ. Engrg.; Univ. of Colorado, Denver, Colo.,

Serial Information: Journal of the Geotechnical Engineering Division, 1978, Vol. 104, Issue 7, Pg. 889-905

Document Type: Journal Paper


An embankment was constructed over a lake deposit and sand drains were used to accelerate consolidation. The investigation included measurement of vertical and radial coefficients of consolidation in laboratory and in-situ tests. It was found that the ratio of horizontal to vertical coefficients of consolidation obtained from laboratory consolidation tests is larger than those obtained from in-situ permeability tests and in-situ consolidation. The shear strengths before and after consolidation were measured by unconfined compression tests and also computed from results of triaxial and simple shear tests. The strengths obtained from the results of triaxial tests are greater than those obtained from the results of simple shear tests, which are in turn greater than those measured by unconfined compression tests.

Subject Headings: Triaxial tests | Shear tests | Compression tests | Field tests | Consolidated soils | Soil strength | Shear strength | Clays

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