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The Brine Migration Test - A Nuclear Waste Repository Simulation Experiment at the Asse Salt Mine - Federal Republic of Germany

  • T. Rothfuchs (a1), K. Wieczorek (a1), E. G. Mcnulty (a2), S. K. Gupta (a2) and D. Clark (a3)...

Abstract

A joint US/FRG nuclear waste repository simulation experiment was performed at the Asse Salt Mine in the Federal Republic of Germany (FRG). The High Level Waste (HLW) disposal in boreholes was simulated by the simultaneous emplacement of electrical heaters and cobalt-60 sources at four individual test sites located in a special underground test room at the 800 m-level.

In order to resolve the issues of rock mass/waste package interaction the temperature field, brine migration into the heater boreholes, borehole gas pressure and composition, and rock mass stresses and displacements were monitored during the test. In order to validate computer code predictions the acquired data were compared to calculational results. Corrosion specimens remained in the heater boreholes during the course of the experiment and were afterwards examined.

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[1] Rothfuchs, T., Wieczorek, K., Feddersen, H.-K., Staupendahl, G., Coyle, A.J., Kalia, H., Eckert, J., Brine Migration Test - Asse Salt Mine. Federai Republic of Germany: Final Report, Gesellschaft für Strahlen-und Umweltforschung mbH München and Office of Nuclear Waste Isolation, GSF 6/88 (1988)
[2] Albers, G., Elsen, R., Hahne, K., Nachrechnungen zum HAW-Simulationsver-such mit Kobalt-60-Quellen im Salzbergwerk Asse. Rheinisch-Westfäli-sehe Technische Hochschule Aachen for Gesellschaft für Strahlen- und Umweltforschung mbH München under Contract No. 31/139919/86 (1987)
[3] Jenks, G.H., Effects of Temperature. Temperature Gradients. Stress, and lrradiation on Migration of Brine Inclusions in a Salt Repository, Oak Ridge National Laboratory, ORNL-5526 (1979)
[4] Schlich, M., Simulation der Bewegung von im natürlichen Steinsalz enthaltener Feuchte im Temperaturfeld - ein Beitrag zur Problematik der Endlagerung hochradioaktiver Abfälle. Thesis, RWTH Aachen (1985)
[5] Gupta, S.K., Cole, C.R., Kincaid, C.T., and Monti, A.M., CFEST - A Coupled Fluid Energy Solute Transport Code, Battei le Memorial Institute - Office of Nuclear Waste Isolation, ONWI-668 (1987)
[6] Battelle Pacific Northwest Laboratory, Proceedings of Salt Repository Project's Workshop on Brine Migration, University of California -Berkeley. April 17–19. 1985. PNL/SRP-SA-1434 (March 1988)
[7] Schwarzkopf, W., Smailos, E., Köster, R., In Situ Corrosion Studies on Selected High-Level Waste Packaging Materials under Simulated Disposal Conditions in Rock Salt Formations, Kernforschungszentrum Karlsruhe GmbH, KfK-4324 (1988)

The Brine Migration Test - A Nuclear Waste Repository Simulation Experiment at the Asse Salt Mine - Federal Republic of Germany

  • T. Rothfuchs (a1), K. Wieczorek (a1), E. G. Mcnulty (a2), S. K. Gupta (a2) and D. Clark (a3)...

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