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An Analysis of the Relationships between Quantity and Drawdown at the Onyang Hot Spring Area  

Jeong, Ji-Gon (Dept. of Geology and Earth Environmental Science, Chungnam National University)
Lee, Chol-Woo (Geothermal Resources Group, Korea Institute of Geoscience and Mineral Resources)
Publication Information
The Journal of Engineering Geology / v.17, no.2, 2007 , pp. 177-185 More about this Journal
Abstract
Most of hot springs don't spring out naturally but are pumped by submersible pumps in Korea. When pumped piezometric head in a well is dropped with proportion to quantity. This research investigates relationships between quantity and drawdown at the Onyang hot spring area. There are 38 wells at this area and the depths of wells range from 124 m to 303 m. Piezometric heads of 4 wells were observed for about 10 months. Fluctuation patterns of piezometric heads seem to be a sine curve with a you period by a high demand and a slack season. Drawdowns of fluctuations were about 98-139 m depth to water table when wells were pumped at $2,300-4,800m^3/day$. A equation was made through analyzing quantity and drawdown.
Keywords
hot spring; piezometric head; drawdown; well;
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  • Reference
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