Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Evaluation of dissolution for radioactive waste repositories in salt deposits
Abstract Several evaporite basins containing bedded salt and dome salt deposits in the USA and Europe are currently being investigated as potential repositories for radioactive waste. While salt has good geomechanical properties for the long-term isolation of radioactive wastes, all such deposits have undergone various degrees of dissolution by circulating unsaturated groundwater. The extent and rate of such dissolution poses a challenge to the geologists evaluating an area for a repository. Detailed investigations at the Waste Isolation Pilot Plant (WIPP), a proposed repository for transuranic (TRU) radioactive wastes located in the Delaware Basin in Southeastern New Mexico, U.S.A., have outlined a broad dissolution front for the Salado formation. An approximate rate of advance of the dissolution front at 1 km per 100,000 years horizontally and 10 meters per 100,000 years vertically, has been calculated. Similar calculations have been performed for other basins with different degrees of uncertainty due to the limitations in surface mapping and core or well-log correlations. Unless such calculations can be performed satisfactorily, questions will remain about the future integrity of a repository located in such an area.
Evaluation of dissolution for radioactive waste repositories in salt deposits
Abstract Several evaporite basins containing bedded salt and dome salt deposits in the USA and Europe are currently being investigated as potential repositories for radioactive waste. While salt has good geomechanical properties for the long-term isolation of radioactive wastes, all such deposits have undergone various degrees of dissolution by circulating unsaturated groundwater. The extent and rate of such dissolution poses a challenge to the geologists evaluating an area for a repository. Detailed investigations at the Waste Isolation Pilot Plant (WIPP), a proposed repository for transuranic (TRU) radioactive wastes located in the Delaware Basin in Southeastern New Mexico, U.S.A., have outlined a broad dissolution front for the Salado formation. An approximate rate of advance of the dissolution front at 1 km per 100,000 years horizontally and 10 meters per 100,000 years vertically, has been calculated. Similar calculations have been performed for other basins with different degrees of uncertainty due to the limitations in surface mapping and core or well-log correlations. Unless such calculations can be performed satisfactorily, questions will remain about the future integrity of a repository located in such an area.
Evaluation of dissolution for radioactive waste repositories in salt deposits
Lokesh, Chaturvedi (Autor:in)
1986
Aufsatz (Zeitschrift)
Englisch
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| British Library Conference Proceedings | 1999