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U.S. Department of Energy
Office of Scientific and Technical Information

Repository planning for the Gorleben working model

Conference ·
OSTI ID:182954
; ;  [1]
  1. Deutsche Gesellschaft zum Bau und Betrieb von Endlagern fuer Abfallstoffe mbH, Peine (Germany)
Site-specific repository planning has been performed for the geological Gorleben working model. Waste arisings of 550 tHM (vitrified HLW and spent fuel) per year have been assumed for capacity planning. The drift emplacement and the combined drift and borehole emplacement have been analyzed as alternatives for the final disposal of HLW and spent fuel. Tunnel emplacement has been favored for LLW and ILW. Due to safety reasons temperature limits of 200 C at the surface of HLW canisters and spent fuel casks and 100 C for ILW concrete drums as well as safety zones between disposal areas and anhydrite and carnalitite layers have been defined. Access to the underground facilities at 870 m depth is provided by two shafts. Temperature calculations have been performed to assure that the temperature limits are kept. Some resulting basic geometric data of the repository design will be kept constant but the shape of the underground facilities can be adapted to the geological situation. At present no results of the investigations contradict the suitability of the Gorleben salt dome as a host rock for a repository of all kinds of radioactive waste.
OSTI ID:
182954
Report Number(s):
CONF-950917--; ISBN 0-7918-1219-7
Country of Publication:
United States
Language:
English