Browse > Article
http://dx.doi.org/10.9720/kseg.2016.3.331

Agricultural Radial Collector Wells in South Korea and Sustainability  

Hong, Soun-Ouk (Rural Research Institute, Korea Rural Community Corporation)
Song, Sung-Ho (Rural Research Institute, Korea Rural Community Corporation)
An, Jung-Gi (Rural Research Institute, Korea Rural Community Corporation)
Kim, Jin-Sung (Rural Research Institute, Korea Rural Community Corporation)
Publication Information
The Journal of Engineering Geology / v.26, no.3, 2016 , pp. 331-337 More about this Journal
Abstract
Radial collector wells (RCWs) have been managed by Korea Rural Community Corporation (KRC) since 1983, installing 98 wells for agriculture in rural area over the country. Among them, 20 wells were installed upstream of 5 subsurface dams and the remaining were installed regardless of the subsurface dam. Most of RCWs have been developed in 1980s and 1990s, and 83 wells have been passed more than 20 years after construction. The number of horizontal arms for RCWs varies from 9 to 28, with length and diameter being 10~30 m and 65 mm, respectively. The central caisson with an inner diameter of 3.5 m was commonly constructed to a depth of 10 m. The maximum pumping rates in RCWs, which are located at distances of 10 to 1,200 m from the river, are 2,000~10,000 m3/day. RCW has a fundamental problem that reduced pumping capacity and degraded well efficiency, due to the physical and chemical clogging. From the feasibility test for improving RCW performance, specific capacity increased to 67% after rehabilitation. TV logging for RCW horizontal arm shows that near the caisson is more severe clogging. From the results of this study, KRC has established the guidebook for monitoring and improving well efficiency through physical/chemical treatment, well logging, and hydraulic tests and managed RCWs periodically with its rehabilitation methods.
Keywords
Radial collector well; Subsurface dam; Horizontal arms; Well efficiency; Rehabilitation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Han, J. S., 1982, Introduction to Groundwater, Bakyoungsa, 511 p.
2 Han, J. S., 2015, Hydrogeology and Groundwater Modeling, neha, 722 p.
3 Kim, T. H., Jeong, J. H., Kim, M., OH, S. H., and Lee, J. S., 2014, Analysis of the Correlation between Geological Characteristics and Water Withdrawals in the Larerals of Radial Collector Well, The journal of Enginneering Geology, 24, 2, 201-215.   DOI
4 Lee, E. H., Hyun, Y. J., Lee, K. K., Kim, H. S., and Jeong, J. H., 2010, Evaluation of Well Production by a Riverbank Filtration Facility with Radial Collector Well System in Jeungsan-ri, Changnyeong-gun, Korea, J. Soil & Groundwater Env, 15, 4, 1-12.
5 MAFRA (Ministry of Agriculture, Food and Rural Affairs) and KRC (Korea Rural Community Corporation), 1996, A Technical Study of Groundwater Dam Development in a Small basin area, Korea Rural community corporation rural research institute, 419 p.
6 MAFRA (Ministry of Agriculture, Food and Rural Affairs) and KRC (Korea Rural Community Corporation), 2015a, Statistical yearbook of land and water development for agriculture 2014, 672 p.
7 MAFRA (Ministry of Agriculture, Food and Rural Affairs) and KRC (Korea Rural Community Corporation), 2015b, A Study on Increasing Efficiency of Large-scale Groundwater Facilities(1), 199 p.
8 MOLIT (Ministry of Land, Transport and Maritime Affairs), 2011, Water Vision 2020, 253 p.
9 Park, J. Y., Choi, S. M., Kim, J. M., and Kim, G. B., 2015, Evaluation of impacts of arm configurations on performance and efficeency of radial collector wells using a datailed numerical modeling technique, Journal of the Geological Society of Korea, 51, 1, 81-92.   DOI