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Lateral Stress and Pore Pressure During One-dimensional Consolidation of Clay  

김재영 ((주)삼보기술단 지반공학부)
Publication Information
Journal of the Korean Geotechnical Society / v.20, no.6, 2004 , pp. 5-10 More about this Journal
Abstract
The earth pressure coefficient at rest for clayey soils in the one-dimensional state, $K_0$ obtained from the triaxial test is not correct in principle because the seepage flow is radial and the displacement of soil elements is three-dimensional. Measurements of the earth pressure and the pore water pressure during one-dimension consolidation in the consolidometer ring are presented. The earth pressure and pore water pressure are measured directly by a circular part of the consolidometer ring of a floating type at its mid height. A plastic clay showed $K_0$=0.5 irrespective of pressure in the consolidometer ring.
Keywords
Clay; Consolidation test; Lateral stress; Pore stress; Stress release;
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