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http://dx.doi.org/10.7843/kgs.2007.23.10.73

Mechanism of Dilatory Dissipation during Piezocone Tests in Lightly Overconsolidated Cohesive Soil  

Ha, Tae-Gyun (School of Civil and Environ. Engrg., Seoul National Univ.)
Jung, Jong-Hong (Expressway and Transportation Technology Institute, Korea Expressway Corporation)
Kim, Hong-Jong (Expressway and Transportation Technology Institute, Korea Expressway Corporation)
Park, Lae-Seon (Executive Managing Director for Construction, Korea Expressway Corporation)
Chung, Choong-Ki (School of Civil and Environ, Engrg., Seoul National Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.23, no.10, 2007 , pp. 73-84 More about this Journal
Abstract
For standard piezocones with shoulder filter elements immediately behind the cone tip, general dissipation curves show monotonically decreasing pore pressure from the initial value. However, dilatory dissipation behavior, showing a temporary increase in pore pressure followed by a decrease in the hydrostatic pressure, has been observed in lightly overconsolidated cohesive soils $(1, which is related to overconsolidation ratio (OCR) and hydrostatic pressure $(u_0)$, affects the dilatory dissipation.
Keywords
Dilatory dissipation; Finite difference analysis; Overconsolidated cohesive soil; Piezocone;
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