日本原子力学会和文論文誌
Online ISSN : 2186-2931
Print ISSN : 1347-2879
ISSN-L : 1347-2879
論文
地震PRAにおける多重故障起因事象の評価手法の提案
牟田 仁村松 健亀子 湧生三浦 弘道小倉 克規内田 剛志
著者情報
ジャーナル フリー

2017 年 16 巻 2 号 p. 89-99

詳細
抄録

 After the severe accident at the Fukushima-Daiichi nuclear power station, the regulation of nuclear plant safety in Japan was upgraded, and continuous effort to enhance risk management in the medium and long term is required. Seismic risk is important in Japan, and one of the major issues of current probabilistic risk assessment (PRA) methodology is the enhancement of seismic PRA including the evaluation of initiating events induced by simultaneous multiple failures of components and of subsequent accident sequences. The Nuclear Regulation Authority (NRA) addressed the issue as “…multiple-failure-initiating events should be considered.” In addition, the standard for the procedure of seismic PRA for nuclear power plants in 2015 identifies this issue in the same manner. This study proposes an enhanced seismic PRA methodology considering multiple-failure-initiating events that is expected to contribute to improving the safety of nuclear power plants. This study also discusses the issues that need more research for their resolution.

著者関連情報
© 2017 一般社団法人 日本原子力学会
前の記事 次の記事
feedback
Top