Abstract In this work, we identify important multiunit risk factors based upon interviews with Tokyo Electric Power Company (TEPCO) engineers. These results provide first-hand information on multiunit risk factors that were important during the 2011 Fukushima accidents. Majority of the interviewees were involved in Fukushima Daiichi and Daini accident mitigation during March 2011. Interviewees worked at Daiichi and Daini sites and headquarters provided views of the accidents from different perspectives. They explained difficulties during the accident mitigation response phase due to lack of multiunit accident experience, and lack of necessary resources. In addition to the risk factors, corresponding site improvement suggestions are discussed based upon our reviews of the interview results. The identified risk factors and site improvement suggestions can be utilized as analysis subjects in future multiunit risk studies as well as references for nuclear sites to identify important multiunit risk vulnerabilities.

中文翻译：

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多机组核电站事故情景和改进，包括基于对 2011 年福岛事故东京电力工程师的采访

摘要 在这项工作中，我们根据与东京电力公司 (TEPCO) 工程师的访谈确定了重要的多机组风险因素。这些结果提供了关于 2011 年福岛事故期间重要的多单元风险因素的第一手信息。大多数受访者在 2011 年 3 月期间参与了福岛第一和第二事故的缓解。受访者在第一和第二基地和总部工作，从不同角度提供了对事故的看法。他们解释了由于缺乏多机组事故经验和缺乏必要资源而导致事故缓解响应阶段的困难。除了风险因素外，我们还根据我们对访谈结果的审查讨论了相应的现场改进建议。