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http://dx.doi.org/10.7843/kgs.2009.25.2.17

Estimation of Undrained Shear Strength of Very Soft Clay with the Slump Test  

Noh, Tae-Kil (Dept. of Civil Engrg., The Univ. of Seoul)
Lee, Song (Dept. of Civil Engrg., The Univ. of Seoul)
Publication Information
Journal of the Korean Geotechnical Society / v.25, no.2, 2009 , pp. 17-24 More about this Journal
Abstract
Undrained shear strength is estimated from laboratory tests generally, but the very soft or fluid material is generally incompatible with the test setup. In-situ methods require test to be accomplished at discrete time intervals, which does not provide a method to predict strength increment as a function of time for an ongoing project. Therefore, correlation between slump test value and undrained shear strength was derived through the regression analysis of slump test and laboratory vane shear test results. For the reliability of derived correlation equation statistical analysis using the t-distribution was performed and the comparison between the results of in-situ test and laboratory experiments demonstrated the applicability of the derived correlation.
Keywords
Consistency; Fine dredged material; Laboratory vane shear test; Regression analysis; Slump test; Soft clay ground; t-distribution;
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