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Backfill and material behaviour in underground salt repositories, phase II

Objective

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.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

FORSCHUNGSZENTRUM KARLSRUHE GMBH - TECHNIK UND UMWELT
Address
Herrmann-von-helmholtz-platz 1
76344 Eggenstein-leopoldshafen
Germany

Participants (8)

DEUTSCHE GESELLSCHAFT ZUM BAU UND BETRIEB VON ENDLAGERN FUER ABFALLSTOFFE MBH
Germany
Address
Woltorfer Strasse 74
31224 Peine
FEDERAL INSTITUTE FOR GEOSCIENCES AND NATURAL RESOURCES
Germany
Address
Stilleweg 2
30655 Hannover
GESELLSCHAFT FUER ANLAGEN- UND REAKTORSICHERHEIT (GRS) MBH
Germany
Address
Theodor-heuss-strasse 4
38011 Braunschweig
GROUPEMENT D'INTÉRÊT POUR L'ETUDE DES STRUCTURES SOUTERRAINES DE STOCKAGE
France
Address
Route De Saclay, Ecole Polytechnique
91128 Palaiseau
INSTITUT FUER GEBIRGSMECHANIK GMBH
Germany
Address
Friederikenstrasse 60
04279 Leipzig
NUCLEAR RESEARCH AND CONSULTANCY GROUP
Netherlands
Address
Utrechtseweg 310
Arnhem
UNITED STATES DEPARTMENT OF ENERGY
United States
Address
National Parks Highway 4021
88220 Carlsbad - New Mexico
UNIVERSITAT POLITECNICA DE CATALUNYA
Spain
Address
S/n,jordi Girona 1-3, Modul D2, Campus Nord
08034 Barcelona