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指出了运用我国现行的考虑时空非均匀性的地震危险性分析计算方法对核电厂等设计精良的设施进行地震危险性分析时所存在的问题.介绍了累积绝对速度(CAV)的概念,并将其引入到我国现行的考虑时空非均匀性的地震危险性分析计算方法之中,用以排除厂址周围小震对核电厂地震危险性分析的影响,并选取实际工程场点进行了试算.试算结果表明,此方法能明显排除厂址周围小震对地震危险性分析结果的影响.
It points out that the existing problems of seismic hazard analysis of well-designed facilities such as nuclear power plants by using the current seismic risk analysis and calculation method that takes into account the spatio-temporal heterogeneity in China present the concept of cumulative absolute velocity (CAV) It is introduced into the current seismic risk analysis and calculation method for considering the spatial and temporal heterogeneity in China to eliminate the influence of small earthquakes around the plant site on the seismic risk analysis of NPPs and to select the actual project sites for trial calculation. The calculation results show that this method can obviously exclude the impact of small earthquakes around the site on the analysis of seismic risk.