Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Analysis of Parallel Reservoir Water Supply Capacity According to Water Supply Changes

용수공급 변화에 따른 병렬저수지 용수공급 능력 해석

  • Jea Min Park (Department of Architectural and Civil Engineering of Kyungil University) ;
  • Ki bum Park (Department of Architectural and Civil Engineering of Kyungil University)
  • 박재민 (경일대학교 스마트 인프라 대학 건축토목공학과) ;
  • 박기범 (경일대학교 스마트 인프라 대학 건축토목공학과)
  • Received : 2023.08.07
  • Accepted : 2023.10.16
  • Published : 2023.10.31
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Abstract

In this study, the water supply reliability of the andong and Imha dam was analyzed using inflow data for 360 months from 1993 to 2022 through allocation model. First, in the analysis results of additional water supply to Deagu city, the water supply reliability of Rule (B) was the highest at 86% for andong dam, 84% for imha dam, and 80% for the control point. However, when the planned supply was supplied, the analysis results showed 94%, 93%, and 90%. Next, in the quantitative reliability analysis results, when considering additional water supply to Deagu city, Rule (A), Rule (B), and Rule (C) were analyzed as 88%, 88%, and 88%, respectively, based on the control point. When supplying the planned water supply, the quantitative reliability analysis results were 95% equally based on Rule (A), Rule (B), and Rule (C). Because of evaluating the two reliability methods, the number of shortages increases significantly when additional water is supplied to Daegu City, but the shortage is generally 5-7%, resulting in a relatively small shortage compared with the increase in the number of shortages. In the case of resilience and vulnerability, additional water supply to Daegu City takes more than two months to restore than the existing planned water supply, and the average shortage was calculated to be smaller than that of supplying the planned water. According to the results of the analysis, Andong dam has an average water storage of 130x106 m2 and Imha dam has 50x106 m2. In this deficient water supply can be compensated by water from the Nakdong river.

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References

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