<abstract xmlns="http://www.w3.org/1999/xhtml">Empirical formulae are often used in practice to quickly and cheaply determine the hydraulic conductivity of soil. Numerous relations based on dimensional analysis and experimental measurements have been published for the determination of hydraulic conductivity since the end of 19th century. In this paper, 20 available empirical formulae are listed, converted and re-arranged into SI units. Experimental research was carried out concerning hydraulic conductivity for three glass bead size (diameters 0.2 mm, 0.5 mm and 1.0 mm) and variable porosity. The series of experiments consisted of 177 separate tests conducted in order to obtain relevant statistical sets. The validity of various published porosity functions and empirical formulae was verified with the use of the experimental data obtained from the glass beads. The best fit was provided by the porosity function n3/(1-n)2. In the case of the estimation of the hydraulic conductivity of uniform glass beads, the best fit was exhibited by formulae published by Terzaghi, Kozeny, Carman, Zunker and Chapuis et al.</abstract>

Empirical formulae are often used in practice to quickly and cheaply determine the hydraulic conductivity of soil. Numerous relations based on dimensional analysis and experimental measurements have been published for the determination of hydraulic conductivity since the end of 19th century. In this paper, 20 available empirical formulae are listed, converted and re-arranged into SI units. Experimental research was carried out concerning hydraulic conductivity for three glass bead size (diameters 0.2 mm, 0.5 mm and 1.0 mm) and variable porosity. The series of experiments consisted of 177 separate tests conducted in order to obtain relevant statistical sets. The validity of various published porosity functions and empirical formulae was verified with the use of the experimental data obtained from the glass beads. The best fit was provided by the porosity function n3/(1-n)2. In the case of the estimation of the hydraulic conductivity of uniform glass beads, the best fit was exhibited by formulae published by Terzaghi, Kozeny, Carman, Zunker and Chapuis et al.

Assessment of empirical formulae for determining the hydraulic conductivity of glass beads

Journal of Hydrology and Hydromechanics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Empirical formulae are often used in practice to quickly and cheaply determine the hydraulic conductivity of soil. Numerous relations based on dimensional...

Assessment of empirical formulae for determining the hydraulic conductivity of glass beads

Published Online: Aug 14, 2018

Page range: 337 - 347

Received: Dec 20, 2017

Accepted: Apr 12, 2018

DOI: https://doi.org/10.2478/johh-2018-0021

Keywords
Hydraulic conductivity, Empirical formulae, Porosity, Porosity function configuration

© 2018 Lubomír Petrula, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Assessment of empirical formulae for determining the hydraulic conductivity of glass beads

Published Online: Aug 14, 2018

Page range: 337 - 347

Received: Dec 20, 2017

Accepted: Apr 12, 2018

DOI: https://doi.org/10.2478/johh-2018-0021

KeywordsHydraulic conductivity, Empirical formulae, Porosity, Porosity function configuration

© 2018 Lubomír Petrula, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Hydraulic conductivity, Empirical formulae, Porosity, Porosity function configuration