Architecture and management of a geological repository - Andra

8 – Surface installations8.2.2 Building for receiving B and C waste and for preparing disposal packagesThe building for receiving the B and C waste and for preparing disposal packages has three schematicsections:- a zone for unloading the primary waste transport transfer casks,- a zone for manufacturing and storing the disposal packages,- a zone for transferring the disposal packages to the transfer shaft.Figure 8.2.1B and C waste buildingThe transport transfer cask unloading zone has a travelling crane and shielded cells. The primarypackages are extracted from the transfer casks and placed in buffer storage before being recovered andplaced in disposal packages.The zone for manufacturing and storing the disposal packages consists of several manufacturing lines.Each line is made up of a succession of shielded cells. Two manufacturing lines are considered for theB disposal packages and one line for the C disposal packages.A concreting facility is in particular part of the B waste lines so that the concrete containers may beclosed. The full containers are stored temporarily in a curing room until sufficient mechanicalproperties are obtained before transfer to the bottom of the shaft (around 28 days).The C waste line has facilities for demagnetisation and electron beam welding, so that the lid can bewelded to the over-pack body. The disposal packages are placed in temporary buffer storage.In the shaft transfer zone, the disposal packages are taken to the transfer transfer cask loading station.The transfer transfer cask is then conveyed to the shaft which transfers it to the bottom.All types of activities planned for the building are already implemented in similar industrial nuclearfacilities.DOSSIER 2005 ARGILE -ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL DISPOSAL SYSTEM324/495