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Characterization of Domestic Earthquake Events for the Safety Assessment of the Geological Disposal System
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 Title & Authors
Characterization of Domestic Earthquake Events for the Safety Assessment of the Geological Disposal System
Kim, Jung-Woo; Cho, Dong-Keun; Ko, Nak-Youl; Jeong, Jongtae;
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Safety assessments of geological radioactive waste disposal systems, need to consider the abnormal scenario in which a system is impacted by external events in addition to a reference scenario. In this study, the characterization and prediction of an earthquake as an external event which will impact disposal systems were conducted probabilistically and statistically for the safety assessment. The domestic earthquake data were analyzed, and the prediction methodologies of the earthquake were suggested with a computational example. From the results, the earthquake occurrence rates in Korea ranged from 0.4 /yr to 36.2 /yr depending on the data set and the completeness magnitude. From a conservative point of view, the earthquake occurrence rate in the disposal system was suggested as 5.4×10-4 /yr considering the area of the disposal system. At that time, the completeness magnitude of an earthquake was 2.3. This study will be followed by an appraisal of impacts associated with external events on the geological disposal system, and it will contribute to improvements in reliability of the safety assessment.
Geological disposal system;Safety assessment;External event;Earthquake;
 Cited by
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