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http://dx.doi.org/10.9720/kseg.2014.2.201

Analysis of the Correlation between Geological Characteristics and Water Withdrawals in the Laterals of Radial Collector Well  

Kim, Tae-Hyung (Division of Water Resources Research, Pan Asia Water Co.)
Jeong, Jae-Hoon (Division of Water Resources Research, Pan Asia Water Co.)
Kim, Min (Division of Water Resources Research, Pan Asia Water Co.)
OH, Se-Hyoung (Division of Water Resources Research, Pan Asia Water Co.)
Lee, Jae-Sung (Division of Water Resources Research, Pan Asia Water Co.)
Publication Information
The Journal of Engineering Geology / v.24, no.2, 2014 , pp. 201-215 More about this Journal
Abstract
This study was performed to investigate the correlation between hydraulic conductivity and the flow rate of an aquifer, with the flow rate calculated from the laterals of the radial collector well using data obtained by the development project of riverbank filtration (Second Phase) in Changwon City. The hydraulic conductivity was empirically calculated from unconsolidated sediments collected from a sandy gravel layer along the middle-to-downstream sections of the Nakdong River. The Beyer equation produced the most suitable hydraulic conductivity from the various empirical formulas employed. The calculated hydraulic conductivity ranged from 0.083 to 0.264 cm/s, with an average value of 0.159 cm/s, suggesting that the aquifer in the study area possesses a high permeability with a good distribution of sandy gravel. The relationship between the calculated hydraulic conductivity in the aquifer and the entrance velocity into the screen, the flow rate was analyzed through the linear regression analysis. From the result of regression analysis, it showed that the hydraulic conductivity and the entrance velocity into the screen and the flow rate have a linear regression equation having about 72% of the high correlation. The result of verification in the measured data between each variable showed a high suitability from being consistent with the approximately 72% in the linear regression analysis. This study demonstrates that the groundwater flow rate can be estimated within the laterals of the radial collector well using a linear regression equation, if the hydraulic conductivity of the aquifer is known. This methodology could thus be applicable to other aquifers with hydraulic conductivity and permeability parameters similar to those in the present study area.
Keywords
riverbank filtration; radial collector well; sandy gravel layer; grain size analysis; hydraulic conductivity;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
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