Architecture and management of a geological repository - Andra

2 – General DescriptionTable 2.5.1Emplacement of waste packages and repository componentsMain manufactured componentsFunctionsReceive waste packages in the Callovo-Oxfordianargillite formationreversibly, while protecting people and the environment andwhile managing operational waste and spoils.PeriodDisposal packagesRepository modulesShafts and connectingdriftsCell sealsShaft and connectingdrift sealsBackfillSurface installationsConstruction, operating,management equipmentGeological mediumPrimary packagesReceive the primary packagesTake delivery/unload/return the transport systemsPlace the packages in the Callovo-Oxfordian argillitesPrepare the disposal packagesIdentify the volume of argillites, excavate the argillite,remove and stockpile the spoils, equip and characterise thestructuresTransfer the packages to their repository locationVentilate the installationsSupport the engineered structures mechanicallyManage the installationsObserve the behaviour of the installations, and monitor andmaintain themPermettre de concevoir de nouveaux ouvragesEnable the closure of the repository installations (prepareand convey the materials, backfill and seal)Enable the unsealing of the structures and enable packageretrieval (remove, bring up to surface, manage and maketransportable)Operation and observationOperational safety functionsConfine radioactivity (ensure non-contamination oftransport systems and casks, etc.)Protect people against irradiationSafety-criticality (inspect the mass of fissile material inspent fuel packages, etc.)Evacuate the residual thermal powerEvacuate the radiolysis gasesKey:Contribution of a manufactured component to a functionFunction where the study takes account of the characteristics ofthe geological medium or the primary packagesDOSSIER 2005 ARGILE -ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL DISPOSAL SYSTEM69/495