Architecture and management of a geological repository - Andra

11 – Operational SafetyTable 11.2.1Summary of the main conventional risks associated with the disposal processRisksActivitiesPersons crushedassociated with afalling objectConstructionSurfaceinstallationsOperationsTransfersurface /U/GinstallationsUndergroundinstallationsClosurePotentialpackageretrievalx x x x x xPersons crushed byequipment or vehiclex x x x x xPersons fallingx x x x xassociated with workat heightsElectrocution x x x x x xFire (surface) x x x xFire (underground) x x x x xPollution andnuisance in the workenvironmentExplosion related tothe release ofexplosive gasesTemperature riserelated to heatreleased by packagesxx x x xxxRisk to be takeninto accountNegligible riskNot applicableRisk is the subjectof additional studyThe following conclusions can be drawn from this table:- The analysis shows no particular differences as regards the type of risks between the variousconstruction, operation, closure and even package retrieval activities. 155- The main risks listed that correspond to conventional risks for which preventive measures areknown do not require specific studies to be undertaken at this stage in the project.- Additional studies are, however, justified in the case of risk specifically attached to a disposalactivity such as is the case for the risk of explosion associated with some B waste packages(cf. Section 11.3) or if it has a significant impact on the design of the facilities and equipment, asin the case of the risk of fire in underground installations (cf. Section 11.4).155 The risks related to the potential retrieval of waste packages would not be distinguished from risks identified either as these techniquesand the equipment used for this work would be very similar to those used during emplacement.DOSSIER 2005 ARGILE -ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL DISPOSAL SYSTEM445/495