In: Journal of Hydrology and Hydromechanics, vol. 66, no. 3
Jaromír Říha - Lubomír Petrula - Mario Hala - Zakaraya Alhasan
Detaily:
Rok, strany: 2018, 337 - 347
Kľúčové slová:
Hydraulic conductivity; Empirical formulae; Porosity; Porosity function configuration.
URL originálneho zdroja: http://www.ih.sav.sk/jhh
O článku:
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.
Ako citovať:
ISO 690:
Říha, J., Petrula, L., Hala, M., Alhasan, Z. 2018. Assessment of empirical formulae for determining the hydraulic conductivity
of glass beads. In Journal of Hydrology and Hydromechanics, vol. 66, no.3, pp. 337-347. 0042-790X (until 2019) .
APA:
Říha, J., Petrula, L., Hala, M., Alhasan, Z. (2018). Assessment of empirical formulae for determining the hydraulic conductivity
of glass beads. Journal of Hydrology and Hydromechanics, 66(3), 337-347. 0042-790X (until 2019) .