Architecture and management of a geological repository - Andra

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10.3.12.1 Shaft observation systemThe equipment used in the shafts are divided into eight sections, located in different horizons of thegeological environment (cf. Figure 10.3.20). Their vertical distribution depends on the presence ofdirect pendulums integrated into a duct in the lining, in order to monitor the overall dimensionalstability of the shaft. The experience feedback relating to their use in dams and confinementenclosures suggests that the height of each pendulum should be limited to between approximately60 and 80 metres.In this way, all the sections (exceptfor the section at the bottom of theshaft) are spaced out atapproximately 80 metres. Threesections are proposed for theinstrumentation in argilite: one at thebottom of the shaft, one at therepository horizon and another at thetop of the Callovo-Oxfordianformation. Three sections aredistributed in the upper and midOxfordian limestones. One sectionallows monitoring in the Barroislimestones and another in theKimmerigian marl layer (located atapproximately –100 metres forexample).Each section allows detailedmonitoring of the shaft lining and thenear-field. Four radial directionmonitoring units seem to besufficient to detect any asymmetry inmechanical evolution, as shown inFigure 10.3.21. The monitoringequipment installed in each unitresembles the equipment describedfor B cells (see section 10.3.7) andfor the drifts (see section 10.3.11)with the exception of deeper radialbore-holes and the presence of themeasurement table for a pendulum inone of the units.The details of a monitoring unit,including the measurement tableoperating the vertical pendulumrelating to the corresponding section,is illustrated in Figure 10.3.22.Figure 10.3.20 Distribution of the instrumented sections andthe pendulums in a shaftIt makes it possible to monitor themechanical strength and the dimensional stability of the structure and the mechanical and hydraulicevolutions of the near-field. It should be noted that the pendulum measurement table enables themeasurement of relative displacement of the lining in three direction, for a height corresponding tothat of the pendulum (separating two instrumented sections). The pendulum chain on a generator lineenables the displacements to be cumulated in the three directions and allows calculation of the overalldeformation over the whole depth of the shaft.DOSSIER 2005 ARGILE -ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL DISPOSAL SYSTEM416/495
The monitoring equipment embedded in the structure and in the rock can be complemented byaccessible equipment in the wall. In this way, it is possible to measure a seepage rate on the internalwall of the lining, an inlet air flow rate or the hygrometry and the temperature of this air.As is the case for connecting drifts, the durability of the monitoring system before closure of the shaftis ensured by the possibility of maintenance, by replacing the faulty sensors or adding new sensors inthe sections where the sensors which are buried in the lining no longer operate.Figure 10.3.21Instrumented section of a shaftFigure 10.3.22Equipment installed in a monitoring unit in a shaft wallFigure 10.3.23 shows a cage with vibrating wire extensometers used in the shafts of the Meuse/Haute-Marne underground laboratory.DOSSIER 2005 ARGILE -ARCHITECTURE AND MANAGEMENT OF A GEOLOGICAL DISPOSAL SYSTEM417/495
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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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2 - General Description• A dimens
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2 - General Description2.4.1.2 Desi
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2 - General Description- some conne
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2 - General DescriptionAs for the w
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2 - General DescriptionThe figure b
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33High-level long-lived waste3.1 Wa
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3 - High Level Long-Lived WasteRese
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3 - High Level Long-Lived Wastesupp
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3 - High Level Long-Lived WasteThe
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3 - High Level Long-Lived WasteFigu
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3 - High Level Long-Lived WasteA fi
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3 - High Level Long-Lived WasteA se
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3 - High Level Long-Lived WasteVitr
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3 - High Level Long-Lived WasteCond
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3 - High Level Long-Lived WasteDist
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3 - High Level Long-Lived Waste3.3.
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3 - High Level Long-Lived WasteTabl
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44Waste disposal packages4.1 B disp
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4 - Waste disposal PackagesFor empl
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4 - Waste disposal Packages• Safe
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4 - Waste disposal Packages• "Par
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4 - Waste disposal PackagesThe prin
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4 - Waste disposal PackagesThe seco
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4 - Waste disposal PackagesFigure 4
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4 - Waste disposal Packages4.1.5 Th
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4 - Waste disposal Packages4.1.5.7
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4 - Waste disposal PackagesIn the c
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4 - Waste disposal PackagesFinally,
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4 - Waste disposal PackagesThe YAG
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4 - Waste disposal PackagesIn the U
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4 - Waste disposal PackagesThe spee
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4 - Waste disposal Packages4.2.4 Ma
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4 - Waste disposal PackagesLoadSlid
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4 - Waste disposal Packages4.3 Spen
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4 - Waste disposal PackagesThe seco
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4 - Waste disposal PackagesFor both
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4 - Waste disposal Packages• Safe
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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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Page 365 and 366: 1010 Reversible repositorymanagemen
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Page 369 and 370: Figure 10.1.1Key repository operati
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Page 373 and 374: Furthermore, equipment and liner ma
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Page 379 and 380: 10.2.2.2 “Post cell-sealing” st
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Page 385 and 386: 10.3.1.1 Overview of the principal
Page 387 and 388: 10.3.2.2 Monitoring of type C waste
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Page 391 and 392: • Absence of a significant impact
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Page 397 and 398: • Water contentThe water content
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Page 401 and 402: Figure 10.3.9Example of monitoring
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Page 413 and 414: 10.3.9 Observation of spent fuel di
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Page 421 and 422: Figure 10.4.2Cell filled with B pac
Page 423 and 424: Ventilation of a 250-m long cell re
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Page 435 and 436: 1111 Operational Safety11.1 Evaluat
Page 437 and 438: 11 - Operational SafetyTransport tr
Page 439 and 440: 11 - Operational SafetyTable 11.1.1
Page 441 and 442: 11 - Operational SafetyResultsTable
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11 - Operational SafetyFigure 11.5.
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11 - Operational Safety11.5.2 Concl
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11 - Operational SafetyFigure 11.6.
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11 - Operational Safety11.7.1 Asses
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11 - Operational SafetyTable 11.7.2
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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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Architecture and management of a geological repository - Andra

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