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Revision and catagorization of evaluation criteria for state change factors in agricultural reservoirs

  • Jae Woong Shim (Rural Research Institute, Korea Rural Community Corporation) ;
  • Young Hak Lee (National Disaster Management Research Institute) ;
  • Dal Won Lee (Department of Agricultural and Rural Engineering, Chungnam National University)
  • Received : 2022.08.19
  • Accepted : 2022.09.20
  • Published : 2022.12.01

Abstract

As the variability of recent rainfall is increasing, it is becoming important to recognize the possibility of changes in the current reservoir state in advance and to inspect the stability based on accurate evaluation standards. However, the evaluation standards for the state change factors of reservoirs are still not suitable for agricultural reservoirs and thus much improvement is needed. Therefore, in this study, the evaluation criteria for state change factors specialized for small reservoirs were categorized and standards were prepared by considering factors that may cause state changes on the dam crest, upstream slope, and downstream slope of the embankment. The categorized results were configured based on the number of mentions of the precision safety inspection report on major defects in 102 reservoirs and the defect factors found in field investigations. The findings of the study indicated that the current state change standards require many revisions for excessive or unnecessary state change factors in the reservoir. Specifically, the deletion of measurement gauges not applicable to the reservoir, the addition of defects found in the reservoir, and the scope of use of the term were proposed. The results of this study can contribute to efficient system operation and management by improving the deficiencies in the system and introducing a new state change factor.

Keywords

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