Safety Assessment of the Liquefaction for Nuclear Power Plants

Katona, Tamas J. (2015) Safety Assessment of the Liquefaction for Nuclear Power Plants. Pollack Periodica, 10 (1). pp. 39-52. ISSN 1788-1994

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Abstract

Experience shows that the nuclear power plant can be safely designed for vibratory effects of earthquakes. Contrary to this, the plants can be heavily damaged by effects of earthquake-induced phenomena like tsunami, soil liquefaction after surviving the ground shaking effects. In the paper, the nuclear power plant’s safety analysis methodology is outlined for the case of soil liquefaction. In the paper the methodology for safety analysis of nuclear power plants for the case of liquefaction is outlined for both deterministic and probabilistic cases. It is shown, how the analysis of consequences of the liquefaction has to be embedded into the overall analysis of plant seismic safety. The selection of hazard and the fragility assessment methods is discussed from the point of view of needs of safety analysis.

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