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http://dx.doi.org/10.14481/jkges.2021.22.9.5

A Study on Determination of Piezocone Coefficients of Soft Clay Ground  

Ahn, Taebong (Department of Railroad and Civil Engineering, Woosong University)
Publication Information
Journal of the Korean GEO-environmental Society / v.22, no.9, 2021 , pp. 5-16 More about this Journal
Abstract
In this study, piezocone coefficients of clays (Hwasung, Gunsan, Changwon, Busan) were analyzed from piezocone penetration tests those accompanied with vane shear and UU tests. Piezocone coefficients of west sea clays (Hwasung, Gunsan), i.e, Nkt is 12.6 and Nqu is 8.8, while those of south sea clays are 16.5 and 9.2 respectively. The difference of liquid limit between south and west clays causes main roles those which west sea clay is generally lower than 50%, i.e, CL, and liquid limit of south sea clay is mostly higher than 50%, i.e CH. Piezocone coefficients obtained from several tests show similar trends even though they still have some differences depending on each test. However, they show clear differences depending on liquid limit. Therefore, piezocone coefficients need to be used with caution depending on LL.
Keywords
Piezocone coefficient; Clay; Vane shear test; Liquid limit; Pore pressure;
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