Tome Architecture and management of a geological repository - Andra

Contents4.1 Surface installations.........................................................................................................524.1.1 General organisation of surface installations ........................................................524.1.2 Nuclear zone .........................................................................................................534.1.3 Industrial and administrative zone ........................................................................554.1.4 Broken rock storage dump ....................................................................................554.2 Underground installations ..............................................................................................574.2.1 Design principles ..................................................................................................574.2.2 Description of repository architectures .................................................................604.3 Disposal process ...............................................................................................................774.3.1 On-going exploration and characterisation ...........................................................784.3.2 Nuclear operation..................................................................................................804.3.3 Repository module construction ...........................................................................824.4 Operational safety............................................................................................................834.4.1 Human protection..................................................................................................844.4.2 Radiological risks during operation ......................................................................854.4.3 Risk analysis in accidental situations....................................................................874.4.4 Conclusion ............................................................................................................925 B waste repository zone .............................................................................................................955.1 B waste primary packages ..............................................................................................965.1.1 Activated metal waste from nuclear reactors........................................................975.1.2 Bituminised liquid effluent processing sludge......................................................985.1.3 Cemented or compacted technological waste .....................................................1005.1.4 Cemented or compacted cladding waste.............................................................1065.1.5 Cladding and technological waste placed in drums ............................................1095.1.6 Sources................................................................................................................1105.1.7 Radium- and americium-bearing waste ..............................................................1115.1.8 Production scenarios ...........................................................................................1115.1.9 Throughput hypotheses.......................................................................................1135.2 Safety options for the design of a B waste repository .................................................1145.2.1 Making the most of the favourable properties of the granite medium................1145.2.2 Designing engineered components that are complementary andredundant to the granite medium ........................................................................1175.2.3 Limiting disturbances to the granite by the repository........................................1185.3 Disposal packages in concrete.......................................................................................1195.3.1 Selected design principles...................................................................................1195.3.2 Description and dimensioning ............................................................................1215.3.3 Concrete, a constituent of disposal containers ....................................................1245.3.4 Manufacturing techniques...................................................................................1265.4 The disposal cells............................................................................................................1285.4.1 The disposal cell .................................................................................................1285.4.2 Dimensioning elements of the disposal cell........................................................1315.5 Architecture of the B waste repository zone................................................................1365.5.1 Dimensioning elements of a disposal module.....................................................1365.5.2 Assessing the number of granite blocks to be identified in the disposalzone.....................................................................................................................1385.6 Disposal process and feasibility elements ....................................................................139Dossier 2005 granite - ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL REPOSITORY4/228