Record details

Title
    The calculation of hydraulic conductivity of sands according to their granularity
Statement of responsibility
    Karel Jahoda
Author
    Jahoda, Karel
Language
    anglicky
Source title - serial
    Acta montana. Series A, Geodynamics
Vol./nr.
    No. 11(104)
Pages
    p. 89-98
Year
    1997
Notes
    4 obr., 2 tab., 10 bibl.
    Zkr. název ser.: Acta montana (Praha), Ser. A.
Subject group
    granulometrie
    hydrodynamika
    hydrogeologie
    metoda matematická
    písek
    vodivost hydraulická
Keyword
    According
    Calculation
    Conductivity
    Granularity
    Hydraulic
    Sands
Abstract (in english)
   The hydraulic conductivity of sands depends aminly on their granulometric composition, which heterogeneity is expressed with the ratio U=d 60/d10, where d60, (d10) is the grain size belonging to 60% (10%) of the undersizes. The representative size of grains is being defined in different ways, often, it is the value d10, sometimes it is dw, which in substance is the size of grains, which hydraulic resistance would be equal to resistance of the equal number of different size grains of given soil. In this study, a proposition is given to describe the granulometrics of sands with the characteristics of Gauss logarithmic - normal distribution LN ( , 2), and so, with the factors , , which would also be the basis for determining of the coefficient of hydraulic conductivity
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    21. 3. 2008
Import date
    8. 8. 2012