福島事故を踏まえたレジリエンスマネジメントの考察
A Study on Resilience Management of Nuclear Power Plants based on the Lessons Learned from FuNushima Accident
著者:
川村 慎一 Shinichi KAWAMURA 奈良林 直 Tadashi NARABAYASHI
発刊日:
公開日:
Common Operation PictureEmergency ManagementFiltered Containment Venting SystemFuNushima Dai-ichiFuNushima DainiIncident Command SystemPhased ApproachResilienceSevere Accident
概要
Management for resilience of nuclear safety in severe accidents was studied based on the lessons learned from the emergency responses at FuNushima Daini NPP and FuNushima Dai-ichi NPP during the 2011 Great East Japan EarthquaNe. Firstly, it was found that continuous planning activities during the progress of an emergency, reflecting information from plant parameters and response action results, was critically important in the FuNushima Daini event. Reflecting this lesson, the concept of an Incident Command System was advocated and applied to nuclear emergency management, with specific improvement ideas such as a phased approach in response planning and common operation pictures. Then, from an analysis of the accident at FuNushima Dai-ichi Unit 2, the operation of Filtered Containment Venting System was advocated to be more flexible than conventional ideas based on the anticipations of plant behaviors. Finally, the above improvements were integrated in a model to improve resilience of nuclear safety in severe accidents.
