For the new nuclear power plants, the hazard of liquefaction due to earthquakes should be excluded by appropriate site selection or eliminated by engineering measures. An important question is how to define a quantitative criterion for negligibility of the liquefaction hazard. In the case of operating plants, liquefaction can be revealed as a beyond-design-basis event. It is important to learn whether the liquefaction hazard has a safety relevance and whether there is a sufficient margin to the onset of liquefaction. The use of pseudoprobabilistic method would be practicable for the definition of probability of liquefaction, but it could result in overconservative results. In this paper, the applicability of the pseudoprobabilistic procedure is demonstrated for the sites in diffuse seismicity environment and for low hazard levels that are typical for nuclear safety considerations. Use of the procedure is demonstrated in a case study with realistic site-plant parameters.

中文翻译：

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伪概率液化危险性评估方法在扩散地震现场核电厂的适用性

对于新的核电厂，应通过适当的选址排除地震引起的液化的危险，或通过工程措施加以消除。一个重要的问题是如何为液化危险的可忽略性定义定量标准。对于正在运行的工厂，液化可被视为超出设计基准的事件。重要的是要了解液化危险是否具有安全意义，以及液化开始是否有足够的余量。伪概率方法的使用对于液化可能性的定义是可行的，但可能导致过度保守的结果。在本文中，证明了伪概率程序在分散地震活动环境中的地点以及对于核安全考虑通常很低的危险等级的适用性。在具有实际现场工厂参数的案例研究中证明了该程序的使用。