Tome Architecture and management of a geological repository - Andra

4 - General architecture of the repository in a granite mediumFigure 4.1.1Example of surface installation layout4.1.2 Nuclear zone4.1.2.1 Overall rationale for the nuclear zoneThe "nuclear" activities zone within the surface installations is a specific industrial zone, withcontrolled access. It includes:- a “traditional” controlled zone (without specific risk linked to the nuclear activity), comprising thesupport installations (fire service building, equipment warehouses, etc.). The manufacture andprocurement of the components needed to produce disposal packages needs at least a warehousetin order to store these components,- a "sensitive" zone, corresponding to nuclear facilities complying to the specific regulationsconcerning “Nuclear Basic Facility”. This zone is fully protected by a physical fence and a secondlevel of access control. It includes the unloading and temporary storage facilities for the transporttransfer casks, the buildings where waste packages are received and then prepared for diposal, thepackage transfer shaft to the underground installations and the air exhaust shaft.The functional features of the nuclear "sensitive" zone in terms of waste types to be handled depend onthe study scenario considered. It includes B and C waste-specific buildings. In the study scenariosincluding the hypothesis of spent fuel disposal, a dedicated building would be added.Dossier 2005 Granite - ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL REPOSITORY53/228