Determination of Hydraulic Conductivity of Unconsolidated River Alluvium from Permeameter Tests, Empirical Formulas and Statistical Parameters Effect Analysis

F. Pliakas () and C. Petalas

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2011, vol. 25, issue 11, 2877-2899

Abstract: Hydraulic conductivity is an important parameter for the investigation of flow processes through streambeds. This paper presents a comparison of hydraulic conductivity estimates of unconsolidated sandy samples collected at four sites of the Nestos River point-bar deposits, Greece. Values of K were determined using laboratory permeameter tests as well as the widely applied empirical formulas of Hazen, Slichter, Terzaghi, Beyer, Sauerbrei, Krueger, Kozeny, Zunker, Zamarin, USBR, Alyamani and Sen, Shepherd, and Loudon, based on the grain-size distribution. In a statistical regression analysis, the relation between several graphical statistical grain size parameters and the determined K values, and the effect of these parameters on K estimates was investigated. For this study site it was found that the empirical formula of Loudon provided the most reliable K estimates for the upper 0.25 m of the streambed. Copyright Springer Science+Business Media B.V. 2011

Keywords: Hydraulic conductivity; Permeameter test; Empirical formulas; Grain-size analysis; Graphic statistical parameters; River alluvial sands (search for similar items in EconPapers)
Date: 2011
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DOI: 10.1007/s11269-011-9844-8

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