著者

吉澤 厚文 大場 恭子 北村 正晴

出版者

一般社団法人 日本機械学会

雑誌

日本機械学会論文集 (ISSN:21879761)

巻号頁・発行日

vol.83, no.856, pp.17-00263-17-00263, 2017 (Released:2017-12-25)

参考文献数

31

被引用文献数

2

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This research aims to develop capability of on-site staffs that can respond to beyond ‟design basis accident (DBA)” in the sophisticated socio-technical system, in which ensuring safety has been more complicated. Fukushima Daiichi nuclear accident is therefore considered as the actual case of “beyond DBA”. The authors focused on the actions to prevent the accident progression undertaken by on-site staffs, which were hardly evaluated in existing accident analyses and reports. With reference to the concept of resilience engineering, “Responding” of the four cornerstones was particularly analyzed. Based on the precedent studies, causal factors of modeling “Responding” where pointed out the importance of “Attitude” that is a new lesson learned from on-site response at the accident. In addition, new lessons learned on improvement of skills indicated the limit of the concept of risk removal type safety as a safety goal that human is defined as “a safety hazard element”. This led the necessity of the success expansion type of safety as a new safety goal that human is defined as “a resource necessary for system flexibility and resilience”. Focusing on “Responding” on-site enabled to deduce core competence by extracting causal factors. Thus, new lessons learned successfully derived introduced for human resource development of the next generation to lead technologies in the society.

著者

大場 恭子 吉澤 厚文 北村 正晴

出版者

一般社団法人日本機械学会

雑誌

年次大会 : Mechanical Engineering Congress, Japan

巻号頁・発行日

vol.2015, pp."G1700106-1"-"G1700106-5", 2015-09-13

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The Fukushima nuclear plant accident has been examined aiming at clarifying the factors influencing responding which is one of the four cornerstones of resilience engineering. Among the causal factors of responding, such as attitude, skill, health and environment, particular attention has been paid on the role of attitude. In addition, the case of Tokai Dai-ni nuclear plant, which was the success case despite tsunami attack, and the case of Fukushima Dai-ichi nuclear plant have been examined focusing on preparatory actions taken prior to the tsunami attack. Through the camparative exainations, attitudes of several kinds have been identified as key factors contributing to enhance organizational resilience. Moreover, the importance of safety-II concept proposed in conjunction with the methodology of resilience engineering has been clearly exemplified. As a whole, it can be concluded that the methodology of resilience engineering and the concept of safety-II are quite effective when utilized with the structured model.