Vulnerability Analysis of a Nuclear Power Plant Considering Detonations of Explosive Devices

概要

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The needs for vulnerability analyses picked up the pace after the military threats to a nuclear power plant in the year 1991 and after the 9/11 events in 2001. The methodology which was proposed for complex assessment of possible consequences following a deliberate damage, shortly after the year 1991 is here further developed to correspond to requests for further studies identified after the events 9/11. The new methodology integrates phenomenological models of the cause of damage, material strength and injuries of human beings with nuclear power plant models used in probabilistic safety assessment. The damage source studied is an explosion of a device brought to the location by land transport. The description of the method and its results are only illustrative and not very detailed in order that the results cannot be used for malicious purposes. A straightforward example analyzing the response of a simplified process facility to a ground explosion outside the building is shown, although the methodology was tested also on a power plant. The results indicate that sizable explosions are required to inflict any damage to the reinforced concrete walls. Much larger explosions are needed to break the equipment behind such walls. The performed analysis shows that the facility can be even better secured at relatively low costs.
一般社団法人日本原子力学会の論文
2006-10-25