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http://dx.doi.org/10.9720/kseg.2020.2.119

Assessment of the Effect of Sand Dam on Groundwater Level: A Case Study in Chuncheon, South Korea  

Yifru, Bisrat (Department of Land, Water and Environment Research, KICT)
Kim, Min-Gyu (Department of Land, Water and Environment Research, KICT)
Chang, Sun Woo (Department of Land, Water and Environment Research, KICT)
Lee, Jeongwoo (Department of Land, Water and Environment Research, KICT)
Chung, Il-Moon (Department of Land, Water and Environment Research, KICT)
Publication Information
The Journal of Engineering Geology / v.30, no.2, 2020 , pp. 119-129 More about this Journal
Abstract
Sand dam is a successful water harvesting method in mountainous areas with ephemeral rivers. The success is dependent on several factors including material type, hydrogeology, slope, riverbed thickness, groundwater recharge, and streamflow. In this study, the effect of a sand dam on the groundwater level in the Chuncheon area, South Korea was assessed using the MODFLOW model. Using the model, multiple scenarios were tested to understand the groundwater head before and after the construction of the sand dam. The effect of groundwater abstraction before and after sand dam construction and the sand material type were also assessed. The results show, the groundwater level increases substantially after the application of a sand dam. The comparison of model outputs, simulated groundwater head before and after sand dam application with and without pumping well, shows a clear difference in the head. The material type has also an effect on the groundwater head. As the conductivity of the material increases, the head showed a significant rise.
Keywords
sand dam; recharge; groundwater level; MODFLOW; Chuncheon;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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