Architecture and management of a geological repository - Andra

C.RP.ADP.04.00018/49511.1.3 Conclusion ..........................................................................................................44211.2 Risk analysis...................................................................................................................44211.2.1 Methodology.......................................................................................................44211.2.2 Internal risks associated with the disposal process .............................................44311.2.3 Risks associated with the repository external environment ................................45211.2.4 Summary.............................................................................................................45311.3 Study of the risk associated with the emission of explosive gases from someB waste packages............................................................................................................45411.3.1 Waste package characteristics.............................................................................45411.3.2 Analysis during the operational phase ................................................................45511.3.3 Analysis during the closing phase.......................................................................45511.3.4 Conclusion ..........................................................................................................45611.4 Study into the fire hazard in underground installations............................................45611.4.1 Fire simulations...................................................................................................45711.4.2 Simulation of personnel evacuation conditions ..................................................46111.4.3 Conclusion ..........................................................................................................46311.5 Study of the consequences of a fire in a vehicle transporting the transfertransfer casks (B, C and CU) ........................................................................................46411.5.1 Assessment of the consequences of a fire in the transport vehicle on thetransfer transfer cask and its contents .................................................................46411.5.2 Conclusion ..........................................................................................................46911.6 Study of the consequences of a fire on the emplacement vehicle (fork lift)of B waste disposal packages.........................................................................................46911.6.1 Assessment of the thermomechanical consequences of a fire on thewaste disposal package and the primary packages contained in it......................46911.6.2 Conclusion ..........................................................................................................47111.7 Study of the consequences of a cage fall during the transfer of the disposalpackage in a shaft...........................................................................................................47111.7.1 Assessment of the mechanical consequences of a cage falling in a shaft...........47311.7.2 Assessment of the radiological consequences of a cage falling in a shaft ..........47511.7.3 Analysis of the risk of criticality.........................................................................47611.7.4 Conclusion ..........................................................................................................47711.8 Study of the consequences of a B waste disposal package falling during itsemplacement in disposal cells .......................................................................................47711.8.1 Assessment of the mechanical consequences of B waste packagesfalling in a disposal cell ......................................................................................47711.8.2 Assessment of the radiological consequences of a fall of B wastedisposal packages in a disposal cell ....................................................................48111.8.3 Conclusion ..........................................................................................................48111.9 Synthesis of the analysis ................................................................................................48212 Synthesis....................................................................................................................................48312.1 Simple and robust technical options ............................................................................48412.2 The reversibility rationale taken into account in the architecture............................48512.3 Safety in the architecture ..............................................................................................48612.4 Outlook ...........................................................................................................................486DOSSIER 2005 ARGILE -ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL DISPOSAL SYSTEM8/495