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Estimating coefficient of consolidation and hydraulic conductivity from piezocone test results - Case studies

  • Hossain, Md. Julfikar (Department of Civil Engineering and Architecture, Saga University) ;
  • Chai, Jinchun (Department of Civil Engineering and Architecture, Saga University)
  • Received : 2013.06.20
  • Accepted : 2014.02.05
  • Published : 2014.06.25

Abstract

The methods for estimating in-situ hydraulic conductivity ($k_{hp}$) and coefficient of consolidation ($c_{hp}$) in the horizontal direction from piezocone penetration and dissipation test results have been investigated using test results at two sites in Saga, Japan. At the two sites the laboratory values of hydraulic conductivity ($k_v$) and coefficient of consolidation ($c_v$) in the vertical direction are also available. Comparing $k_{hp}$ with $k_v$ and $c_{hp}$ with $k_v$ values, suitable methods for estimating $k_{hp}$ and $c_{hp}$ values are recommended. For the two sites, where $k_{hp}{\approx}k_v$ and $c_{hp}{\approx}2c_v$. It is suggested that the estimated values of $k_{hp}$ and $c_{hp}$ can be used in engineering design.

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