The tunnel concept of low- and intermediate level radwaste repository and results of safety analysis

One of the options considered for the permanent storing of low- and intermediate level radwaste is the final disposal in deep geological formations - tunnels. This paper recapitulates preliminary design of the tunnel concept with special view on design parameters and engineering barriers. The repository is conceived as the complex technological facility designed for the receipt, treatment and final storage. The preliminary safety assessment study have been made for the radwaste repository. The safety study is based on generic data on the disposal site as well as on deterministic approach in accidental scenarios selection and consequences analysis. The paper also presents the main results of the preliminary safety analysis study. (author)