Architecture and management of a geological repository - Andra

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3 – High Level Long-Lived WasteQuantitative data relating to PWR fuels are found in Table 3.3.6.Table 3.3.6Number of PWR fuel assemblies"Short" UOX AFA-2GEassembly, type CU1"Long" UOX AFA-2LEassembly, type CU1Production sitesEDFScenarioS1aNumber of PWR fuel assembliesScenario ScenarioS1b S1cScenarioS20 0 0 27 2000 0 0 26 800Total UOX assemblies, type CU1 0 0 0 54 000"Short" MOX AFA-2GEassembly, type CU2EDF 0 5 400 5 400 4 000Total MOX assemblies, type CU2 0 5 400 5 400 4 000Furthermore, 5,810 primary claddings are to be considered for type CU3 fuels, if appropriate.3.4 Primary waste package reception flux hypothesisTo study operating resources in a potential repository, and the drifts and access shafts, flowhypotheses for packages received on a repository site have been established, consistent with the totalnumbers of packages listed.As a reference, an annual reception rate of 5,000 primary waste packages has been envisaged for Bwaste. This corresponds to emplacement of the waste packages inventory into the repository over aforty-year period. With the exception of some packages produced late, particularly the B1 referencepackage, note that all or the vast majority of the other reference packages will already have beenproduced by 2020.Chronologically, the C0 reference packages will be the first vitrified C waste packages availabletechnically for repository disposal in view of their heat rating. 400 packages per year is the rateadopted for the hypothesis, corresponding to a resorption of storage facilities over ten years or so.It is assumed that the other vitrified C waste packages (C1, C2, C3 and C4 in scenario S1a, C1 and C2in scenarios S1b and S2, C1 only in scenario S1c) will be stored temporarily before final disposal, toallow their heat rating to decrease. The studies presented in Chapter 5 suggest a reasonable temporarystorage period of 60 to 70 years under the concepts studied and heat transfer criteria currently beingconsidered.In any event, the hypothesis of an annual reception rate of 600 C1 to C4 reference packages (700packages per year for C1 reference packages under scenario S1c) will permit resorption of storagefacilities at a rate allowing for the packages contained therein to show a consistent heat rating, giventhe decrease in radioactivity. This corresponds to a resorption of storage facilities over about fiftyyears.CU2 fuels identified in scenarios S1b, S1c and S2 will be received as appropriate after a currentlyestimatedtemporary storage period of at least 90 years, at an annual rate of 150 assemblies. Theirresorption will take place over about forty years under scenarios S1b and S1c (or thirty for scenarioS2). Lastly, for CU1 fuels (scenario S1), the study considers the hypothesis of 1,650 assemblies peryear.Note that an annual reception rate of 400 primary claddings can be envisaged for CU3 fuels,corresponding to a resorption of storage facilities over about fifteen years.DOSSIER 2005 ARGILE -ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL DISPOSAL SYSTEM104/495
44Waste disposal packages4.1 B disposal waste packages.............................................................................................1064.2 C waste disposal packages.............................................................................................1284.3 Spent fuel disposal packages.........................................................................................144DOSSIER 2005 ARGILE -ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL DISPOSAL SYSTEM105/495
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Report SeriesTomeArchitectureand ma
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C.RP.ADP.04.00013/495ContentsConten
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C.RP.ADP.04.00015/4955.3.2 Design p
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C.RP.ADP.04.00017/4959.2.3 The tran
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C.RP.ADP.04.00019/495Bibliographic
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C.RP.ADP.04.000111/495Table of illu
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C.RP.ADP.04.000113/495Figure 4.3.8
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C.RP.ADP.04.000115/495Figure 5.3.9F
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C.RP.ADP.04.000117/495Figure 9.2.2
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C.RP.ADP.04.000119/495Figure 10.4.8
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C.RP.ADP.04.000121/495Table 11.6.1T
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1 - The Study Approach1.1 Purpose o
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1 - The Study ApproachFrom 1999 to
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1 - The Study Approach1.4 Structure
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2 - General DescriptionThis chapter
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2 - General DescriptionHLLL waste p
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2 - General DescriptionFor a transi
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2 - General DescriptionIt should al
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2 - General Description2.2.2.2 Safe
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2 - General DescriptionThe protecti
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2 - General DescriptionIt should al
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2 - General DescriptionThis section
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2 - General Descriptionfollowing th
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2 - General Description2.3.2.2 Geoc
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2 - General DescriptionFigure 2.3.5
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2 - General DescriptionIn the Dogge
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4 - Waste disposal PackagesAs for C
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4 - Waste disposal PackagesMelted c
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55Repository modules.5.1 B waste re
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5 - Repository Modules5.1.1.1 Quest
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5 - Repository Modules• Controlli
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5 - Repository ModulesFigure 5.1.1t
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5 - Repository Modules• The geome
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5 - Repository ModulesTable 5.1.1Fu
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5 - Repository ModulesFigure 5.1.9D
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5 - Repository Modules5.1.3.2 Detai
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5 - Repository Modules• Arrangeme
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5 - Repository ModulesAlthough this
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5 - Repository ModulesConnection be
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5 - Repository ModulesFurthermore,
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5 - Repository ModulesTo illustrate
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5 - Repository Modules• The acces
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5 - Repository ModulesFigure 5.1.24
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5 - Repository Modules• Limiting
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5 - Repository Modules5.2.2 Design
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5 - Repository ModulesA concept wit
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5 - Repository Modules• Orientati
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5 - Repository ModulesFigure 5.2.3O
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5 - Repository Modules5.2.3.1 Descr
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5 - Repository ModulesA minimum ann
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5 - Repository ModulesIn terms of t
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5 - Repository ModulesStorage perio
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5 - Repository ModulesSensitivity t
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5 - Repository ModulesIt must be no
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5 - Repository Modules• Disposal
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5 - Repository Modules• Assembly
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5 - Repository ModulesThe permeabil
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5 - Repository ModulesThe evolution
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5 - Repository ModulesThe lowest dr
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5 - Repository Modules• Back-fill
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5 - Repository Modules5.3.2.1 Sever
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5 - Repository ModulesFigure 5.3.4S
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5 - Repository ModulesThe cells are
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5 - Repository ModulesFinally, it s
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5 - Repository ModulesThe internal
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5 - Repository Modules• Descripti
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5 - Repository Modules- another pos
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66 Overall undergroundarchitecture6
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6 - Overall underground architectur
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7 - The shafts and the driftsThe co
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7 - The shafts and the drifts7.2.2
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7 - The shafts and the driftsFigure
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7 - The shafts and the drifts7.3.3.
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7 - The shafts and the drifts7.4 De
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7 - The shafts and the driftsThe dr
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7 - The shafts and the drifts7.7 Cl
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7 - The shafts and the driftspressu
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88Surface installations8.1 General
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8 - Surface installationsFigure 8.1
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8 - Surface installationsSuch a bui
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8 - Surface installationsApart from
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9 - Nuclear operating resources in
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1010 Reversible repositorymanagemen
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During the operational phase, the d
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Figure 10.1.1Key repository operati
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The radioactive elements can thus b
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Furthermore, equipment and liner ma
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The condition of the access drifts
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The sleeve’s durability is improv
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10.2.2.2 “Post cell-sealing” st
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As far as long-term safety is conce
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Figure 10.2.10Diagrammatic represen
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10.3.1.1 Overview of the principal
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10.3.2.2 Monitoring of type C waste
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The project’s monitoring programm
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• Absence of a significant impact
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Dams are of particular interest whe
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The rate of operation of these sens
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• Water contentThe water content
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A similar wireless transmission tec
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Figure 10.3.9Example of monitoring
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In addition, a visual control syste
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Cell atmosphere monitoring is limit
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The monitoring of the seal can be c
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• The instrumented sections and t
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The deformation measurements carrie
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10.3.9 Observation of spent fuel di
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These instrumented sections (cf. §
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The monitoring equipment embedded i
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the cell which conditions the evolu
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Figure 10.4.2Cell filled with B pac
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Ventilation of a 250-m long cell re
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• Package retrieval processOnce t
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Figure 10.4.10C Cell at end of oper
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The robot is traversed similarly to
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This operation is complete when a b
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The condition of the drift liner sh
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1111 Operational Safety11.1 Evaluat
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11 - Operational SafetyTransport tr
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11 - Operational SafetyTable 11.1.1
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11 - Operational SafetyResultsTable
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11 - Operational SafetyThe risks ar
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11 - Operational SafetyOn the surfa
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11 - Operational Safety“Honeycomb
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11 - Operational SafetyGiven the me
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11 - Operational SafetyThis risk co
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11 - Operational SafetyHydrogen emi
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11 - Operational SafetyOver and abo
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11 - Operational SafetyFigure 11.4.
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11 - Operational SafetyHowever, wit
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11 - Operational Safety11.5.2 Concl
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11 - Operational Safety11.7.1 Asses
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11 - Operational SafetySuch a damag
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11 - Operational Safety11.8.1.2 Dat
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11 - Operational SafetyIn all cases
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1212 Synthesis12.1 Simple and robus
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12 - SynthesisThe existence of unce
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12 - SynthesisTo concretely illustr
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Bibliographic references[17] Callon
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Bibliographic references[54] Andra
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Bibliographic references[88] IAEA (
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Photo Credits:ANDRA - AREVA CREATIV
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