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http://dx.doi.org/10.9720/kseg.2011.21.1.079

Characteristics of the Hydraulic Conductivity of Carbonate Aquifers in Gangwon Province  

Park, Young-Yun (Research Institute for Earth Resources, Kangwon National University)
Lee, Jin-Yong (Department of Geology, Kangwon National University)
Lim, Hong-Gyun (Department of Geology, Kangwon National University)
Park, Yu-Chul (Department of Geophysics, Kangwon National University)
Publication Information
The Journal of Engineering Geology / v.21, no.1, 2011 , pp. 79-85 More about this Journal
Abstract
We investigated the flow properties of groundwater in areas of carbonate rocks at Yeongwol and Jeongseon, Gangwon Province, based on measurements of hydraulic conductivity. Existing hydraulic conductivity data were compiled from 46 wells in the study area. These wells were sunk close to Golji stream and the Joyang and Dong rivers, which flow through the study area. The hydraulic conductivities range from 0.004 to 1.1 m/day, and show a gradually decreasing trend with decreasing well depth (y=-0.003x - 0.927, $r^2$=0.129). The study area was classified into zone A (< 0.1 m/day), zone B (0.1-1.0 m/day), and zone C (> 1 m/day) according to hydraulic conductivity. Zones A, B, and C make up 87% (n = 40), 11 % (n = 5), and 2% (n = 2) of the surface of the study area, respectively. Among the three zones, zone A contains few fractures whereas zone C contains many fractures. These results indicate that groundwater flow in carbonate regions is strongly influenced by the fracture network.
Keywords
carbonate region; groundwater; hydraulic conductivity; fracture; cluster analysis;
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