Architecture and management of a geological repository - Andra

11 – Operational SafetyFigure 11.2.3Schematic diagram of the devices envisaged to reduce risks during wastedisposal package transfer in shaft• Risk of criticality associated with a cage loaded with a used fuel package transfertransfer cask falling down a shaftA drop scenario involving a cage loaded with a transfer cask containing a spent fuel disposal packagewhich would entail serious damage to said package (modification of its internal geometry, fracture andcontact between spent fuel bundle elements) and an inflow of water could lead to a risk of criticality.DOSSIER 2005 ARGILE -ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL DISPOSAL SYSTEM450/495