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Hydraulic conductivity of silts in Chotárny channel at Žitný ostrov

In: Acta Hydrologica Slovaca, vol. 17, no. 2
Renáta Dulovičová - Yvetta Velísková - Radoslav Schűgerl

Details:

Year, pages: 2016, 149 - 156
Keywords:
bed silts, silting, channel network, cross-section profile, longitudinal profile, granularity curve, saturated hydraulic conductivity
Original source URL: http://www.ih.sav.sk/ah
About article:
The purpose of this contribution is the evaluation of bed silts permeability which is expressed by parameter their saturated hydraulic conductivity. This activity was performed on Chotárny channel, one of three main channels of channel network at Žitný ostrov, considering to impact of bed silts permeability to mutual interaction between channel network with groundwater at ŽO. The paper compares the values of saturated hydraulic conductivity of bed silts which were extracted from Chotárny channel at ŽO during period 1993 – 2015. The bed silts were extracted and obtained by two ways, as disturbed samples and as undisturbed samples. From disturbed samples on Chotárny channel were obtained the saturated hydraulic conductivity values of bed silts calculated according to Beyer-Schweiger and Špaček (tab. 1) in 2004, the valid values K reach from 2,14.10-06 to 5,98.10-05 m⋅s-1. From undisturbed samples of silts which were extracted along Chotárny channel from top, middle and bottom layer of silt, were determined the values of saturated hydraulic conductivity K by measurement in laboratory - by the laboratory falling head method. These values for Chotárny channel in 2015 are in tab. 2. The values K for Chotárny channel reach from 8,542.10-08 to 2,704.10-04 m⋅s-1.
How to cite:
ISO 690:
Dulovičová, R., Velísková, Y., Schűgerl, R. 2016. Hydraulic conductivity of silts in Chotárny channel at Žitný ostrov. In Acta Hydrologica Slovaca, vol. 17, no.2, pp. 149-156. 2644-4690.

APA:
Dulovičová, R., Velísková, Y., Schűgerl, R. (2016). Hydraulic conductivity of silts in Chotárny channel at Žitný ostrov. Acta Hydrologica Slovaca, 17(2), 149-156. 2644-4690.