非恒定流条件下单裂隙核素迁移模型

在高放废物地质处置的研究中 ,人们期望地质处置库能长时间 (通常为数百万年 )有效地隔离放射性核素。在如此长的时间范围内 ,由于气候、海平面等变化 ,地下水水流条件也将随时间变化。为了评价地下水水流条件的变化对放射性核素迁移行为的影响 ,该文以双重介质理论的裂隙迁移模型为基础 ,提出了非恒定流条件下单裂隙核素迁移模型

SINGLE FRACTURE NUCLIDE TRANSPORT MODEL UNDER TIME-VARYING GROUNDWATER CONDITIONS

In the field of research concerning the HLW geological disposal, the radio nuclides are expected to be sufficiently isolated over a long time(generally several millions of years) in the repository. Over such a long period of time, one may expect changes in groundwater flow conditions due to climatic and sea level changes. To assess how such changes may affect the nuclide transport behavior, the paper proposes a single fracture nuclide transport model under time-varying groundwater flow conditions based on the double-porosity theory.