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Backfill and material behaviour in underground salt repositories, phase II


The proposal addresses the safe disposal of radioactive waste in geological salt formations.

Based on the findings and recommendations of the BAMBUS-I project, the work will consist of:
(1) in situ investigations in the Asse saltmine in which the complex behaviour of backfill and rock salt will be studied during and after dismantling of the large-scale TSDE experiment;
(2) laboratory tests to measure specific parameter values needed in models to predict repository performance;
(3) modelling studies to increase the predictive capability of the models and to improve their capacity for, e.g. 3D calculations; and
(4) a desk study to investigate the retrievability of heat generating waste and to evaluate viability and boundary conditions for retrieval operations.

The results will help to improve repository design and performance assessment and to increase the confidence in repository safety analyses.
The project started on 1 August 2000. In the first half of the project duration the following progress was achieved:
In accordance with project planning, most of the field work in the Asse salt mine was done and laboratory studies were performed with samples gained during dismantling the test field. Based on results from field studies, numerical models for backfill compaction were developed further.

Call for proposal

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Herrmann-von-helmholtz-platz 1
76344 Eggenstein-leopoldshafen

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EU contribution
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Participants (8)