Tome Architecture and management of a geological repository - Andra

ContentsFigure 5.1.7 Non-alloy steel container used as over-drum for 1800-litre concretecontainers ............................................................................................................102Figure 5.1.8 500-litre concrete container ................................................................................102Figure 5.1.9 EIP stainless steel drum ......................................................................................103Figure 5.1.10 500-litre stainless steel container ........................................................................104Figure 5.1.11 870-litre non-alloy steel container ......................................................................104Figure 5.1.12 Changes in residual heat rating in cladding waste primary packages fromPWR UOX, URE (enriched recycled uranium) and MOX fuels ........................107Figure 5.1.13 1800-litre stainless steel drum containing cemented cladding waste..................107Figure 5.1.14 Source blocks......................................................................................................111Figure 5.2.1 Japan: general architecture of a deep TRU waste in crystalline rock and abituminised or low-level waste storage tunnel....................................................115Figure 5.2.2 Principle of disposal tunnel installation in a granite block .................................116Figure 5.3.1 Example of a standard disposal package.............................................................122Figure 5.3.2 Example of a disposal package with reinforced retention capacity ....................123Figure 5.3.3 Core emplacement in the mould of the standard B2 package prior to casting....127Figure 5.3.4 Demonstrator of a standard disposal package.....................................................127Figure 5.3.5 Demonstrator of a disposal package with reinforced retention capacity ............128Figure 5.4.1 View of a disposal cell........................................................................................129Figure 5.4.2 Cell head .............................................................................................................130Figure 5.4.3 Basic diagram of a B waste cell seal...................................................................131Figure 5.4.4 Cross section of a disposal tunnel of non-exothermic B waste...........................132Figure 5.4.5 Assessment of the length in metres of the disposal chambers for nonexothermicB waste.............................................................................................133Figure 5.4.6 Temperature evolution of the package after emplacement .................................134Figure 5.4.7 Cross-section of a disposal tunnel of slightly exothermic waste ........................135Figure 5.4.8 Assessment of the disposal chamber length in metres for slightlyexothermic B waste.............................................................................................136Figure 5.5.1 3D view of a module of non-exothermic waste cells..........................................137Figure 5.5.2 3D view of modules on 2 levels..........................................................................139Figure 5.6.1 Basic diagram of exploration and characterisation for a B waste moduleand cell................................................................................................................141Figure 5.6.2 Basic diagram of blasting in smaller sections.....................................................143Figure 5.6.3 Biological protection cask for the most irradiating B waste packages ...............144Figure 5.6.4 Principle of loading and unloading the cask in the shaft cage ............................145Figure 5.6.5 Docking the B waste cask ...................................................................................146Figure 5.6.6 Synoptic scheme of B waste package emplacement in a disposal cell ...............146Figure 5.6.7 Lifting the package to the deposition height and placing at its location.............148Figure 5.6.8 Temperature fields of primary packages of bituminised waste (B2.1) in theevent of a fire in the disposal cell .......................................................................149Figure 5.6.9 Scenario of a disposal package dropping onto the cell floor ..............................150Figure 5.6.10 Plastic deformations of the B2.1 primary package (6-metre drop on anangle) ..................................................................................................................150Figure 5.6.11 Cutting ornamental granites with a diamond-tipped cable .................................152Figure 6.1.1 Heat ratings of vitrified waste packages versus time..........................................159Figure 6.1.2 PIVER containers................................................................................................161Dossier 2005 Granite - 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