소규모 저수지 대상 비상대처계획 수립 선정기준 연구
Study on Selection Criteria of Small-Scales Reservoirs for Emergency Action Plan(EAP) Establishment
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초록
This study developed selection criteria of small-scales reservoirs, having under 300,000㎥ storage capacity, for the Emergency Action Plan(EAP)establishment in order to reduce the disaster risks of the reservoir’s failures. Those reservoirs are out of ranges of Korean EAP establishment standard,but have potential risk of disasters as they have often failed by the recent extreme rainfall events and earthquakes, causing economical and life losses. The problem of reservoir aging is also one of the reasons of them. In this study, the developed selection criteria of small reservoirs for EAPestablishment are storage capacity, embankment height, reservoir age, heavy rain factor and earthquake factor. These criteria were selected based onthe review of the existing EAP establishment guidelines, analysis of the past dam failure cases, and the previous related studies. The quantification ofthese criteria were conducted for the practical applications in the fields, and applied to 67 previous failures in order to investigate the relation of eachcriteria with these failures. The earthquake factor found to be the highest relations followed by heavy rain factors, combination of earthquake and heavyrain factors, and reservoir age. The classification was made as observation and review groups for EAP establishments based on overlapping numbersof each criteria. This classifications applied to 354 reservoirs designated as having the potential disaster risk by MOIS, and showed 38.4% of observationand 11.9% of review groups. Anticipatory monitoring and regular inspection should be made by professional facility managers for the observation group,and necessity of EAP establishment should be assessed for the review group based on the downstream status and financial budget.
Abstract
This study developed selection criteria of small-scales reservoirs, having under 300,000㎥ storage capacity, for the Emergency Action Plan(EAP)establishment in order to reduce the disaster risks of the reservoir’s failures. Those reservoirs are out of ranges of Korean EAP establishment standard,but have potential risk of disasters as they have often failed by the recent extreme rainfall events and earthquakes, causing economical and life losses. The problem of reservoir aging is also one of the reasons of them. In this study, the developed selection criteria of small reservoirs for EAPestablishment are storage capacity, embankment height, reservoir age, heavy rain factor and earthquake factor. These criteria were selected based onthe review of the existing EAP establishment guidelines, analysis of the past dam failure cases, and the previous related studies. The quantification ofthese criteria were conducted for the practical applications in the fields, and applied to 67 previous failures in order to investigate the relation of eachcriteria with these failures. The earthquake factor found to be the highest relations followed by heavy rain factors, combination of earthquake and heavyrain factors, and reservoir age. The classification was made as observation and review groups for EAP establishments based on overlapping numbersof each criteria. This classifications applied to 354 reservoirs designated as having the potential disaster risk by MOIS, and showed 38.4% of observationand 11.9% of review groups. Anticipatory monitoring and regular inspection should be made by professional facility managers for the observation group,and necessity of EAP establishment should be assessed for the review group based on the downstream status and financial budget.
참고문헌 (23)
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