Tome Architecture and management of a geological repository - Andra

Contents7.2.1 Harnessing the favourable properties of the granite medium .............................1987.2.2 Designing engineered components that are complementary andredundant to the granite medium ........................................................................2017.2.3 Limiting disturbances to the granite by the repository........................................2037.3 The spent fuel canisters .................................................................................................2037.3.1 Selected design principles...................................................................................2037.3.2 Description and dimensioning ............................................................................2047.3.3 Manufacturing techniques...................................................................................2057.3.4 Non-destructive tests of the integrity of the copper envelope.............................2077.4 The disposal cells............................................................................................................2097.4.1 Description of the disposal cell...........................................................................2097.4.2 Description of a handling drift............................................................................2117.5 Architecture of the spent fuel repository zone ............................................................2127.5.1 Dimensioning elements of a repository module .................................................2127.5.2 Description of a repository module.....................................................................2137.5.3 Assessing the number of spent fuel modules ......................................................2137.6 Disposal process as part of the reversibility rationale................................................2147.6.1 Characterisation of the granite blocks and construction of the modules.............2147.6.2 Operation of a cell as part of the reversibility rationale......................................2147.6.3 Risks associated with spent fuel package emplacement in the cell ....................2177.6.4 Closing the structures and observation ...............................................................2177.7 Functions of the repository components over time.....................................................2188 Conclusions...............................................................................................................................2218.1 Generic architecture that can be adapted to the diversity of Frenchgranites............................................................................................................................2228.2 A robust design ..............................................................................................................2238.3 Architecture taking in account the reversibility rationale.........................................224Reference documents .........................................................................................................................225Dossier 2005 granite - ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL REPOSITORY6/228