submittal of copies of two documents on gorleben in ... · as a fourth group dwk (deutsche...
TRANSCRIPT
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1 . . , It! - - . I- C1 BatellePacific Northwest LaboratoriesP.O. Box 999Richland, Washington U.S.A. 99352Telephone (509)
Telex 15-2874
J DEC 29 NO 54
December 22, 1986
WM Record file WM Project AZ ..D~c'Iet No.
PCR ik•L...IPH 1 OMr. D. Galson
Mailstop 623 SSU. S. Nuclear Regulatory CommissionOffice of Nuclear Materials, Safety
and SafeguardsWashington# DC 20555
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(Re' . 0 o r7O.j __ __ I. _ -
Dear Mr. Galson:
Enclosed are copies of the two documents on Gorleben in response to yourtelephone call. If there is anything else we may hKelp you with please feelfree to call.
Sincerely,
L. T. Lakey, ManagerInternational Support
LTL/aJ
Enclosures: 1) Handout, DBE summary on the status of the Gorleben facility2) Foldout, Gorleben photographs
7213 861222.PD WAT
WlI-16 PDRI
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Deutsche GesellschlftE d b zum Bau und Betrieb
von Endlagern tmr@ t Abtahstofle mbH MBE)
DBEPresentation
GORLEBENDBE Exploratory Investigations of theGorleben Salt Dome
Status. g .. qj.g0.1986a a . - a a. a a a a
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Under the provision of the German Nuclear Legislation (Atomgesetz)the Federal Government Is reponsible for the disposalof radioactive waste.
The PTB (Physikaisch- Technische Bundesanstalt, Federal Officeof Technology) Is entrustet with the management of the disposalon behalf of the government It thus shows responsible for theplaning, construction and operation of facilities for safeguardinas well as for final disposal of spent radioactive fuel orreprocessing waste (Paragraph 23 1 2).
The PTB has involved a "Third party", namely DBE (DeutscheGeseflschaft zum Bau und Betrieb von Endlagern f Or Abfalistoffe mbH,German Corporation for construction and operation of repositoriesfor waste, Inc.) under an operating agreement for the implementationof the above task.
September 11 1979DBE Is Incorporated. Parent companies are three governmentcontrolled corporations'- ndustrieverwaltungsgeseffschaft (IVG) mbH- Saarberg Interplan GmbH and- Salzgitter Maschinen und Anlagen AG
July 1984As a fourth group DWK (Deutsche Gesellschaft fOr Wiederaufarbeltungvon Kembrennstoffen mbH. German Reprocessing Company) joinsthe consortium. The participation of DWK gives DBE direct accessto data regarding the nuclear waste materials of the utilities.
4Yb | DBE Incorporation and Parents 1985P -
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Stae 1 Mai 1986
P -G(1iBb 6 Organogram of D B E -l
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1980 1984 1985 1986, 30.06.
I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Development of DBE - Personnel P - G1986
& ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~I
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- Conceptual design of repositories- site investigations- construction of surface and underground facilities
for repositories- thermomechanical and geomechanical repository lay out- development of emplacement techniques- construction of emplacement machinery- risk assessments
safety analysis for the operation phase and for thepost operationsphase (long term calculations)
- Design and construction of technical barriers(i. e. dam constructions, plugs and sealings forboreholes and tunnels, backfilling techniques)
I
Main Objectives of DBE T-E1986
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ium rBau und Betriebvon Endlagern tOr
Abtalletotte mbH (DBE)
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DBE Exploratory Investigations of theGorleben Salt Dome
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The salt dome Gorleben has been under Investigation for Its potentialsultablIty as a repository for radioactive waste since 1979.
A surface Investigative program compised
- hydrogeological base 0ne studies- geophysical Investigations- a deep drilng progam
In the course of these surveys the foflowing work was undertakens
- 321 ground water test wels- 17 surface water monitor stations- drill holes to salt table- 4 deep drl holes- 2 plot holes for shafts- 1 stratigaphlc dii hole (Tertary)- 156 kim seismic profile bes
Site Investigation 19 8 5
Type and Extent of Surveys - G
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W -, __ b.N c - ( 4 __ _
drill hole(to salt table)
dri hole(to salt table)
drill holes(hydrogeology)
deep drlU hole shaft pilot holes
drill holes(hydrogeology)
A AAA
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Tertiary
_ _ -_ -| __ - <_ _ 0 | @ ' Pleistocene=, -A-==twr--N--3 ,T4.A4 \Caprock
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< ~~~~Flnal depth 965 m Final depth 968 m/
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(modified)Final depth 2116 m
Idz~i~b 1 Cross Section of Salt Structure Gorleben P -G1 ~~~~~~~~~~~~~~~~19 86
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_ -. . -. . - _ - - m - - - - -
Titfieit vor Ort r z PIaang n Ende des n'ten Monats
Jahr 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Erlutorung n. 81 82 83 a4 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99UbertSge Standorterkundung t2 Shachtvsrbohrungen 2 F Igeoloesche ?WO-Veranstaltungl ARrenbelribsplan 3 CVerbereitung Schachtatteufen =E ntuetle veitere Standortsuche r iSchichh talls Sachtvrbohrungenerfolglos
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hnfrostraktur Schacktabtuten SEhvhten des Abtufalatzes *Abteufen d Grierbohrlicher 7Gilrren e
obteuten 9tUrtsten. flOschnemntaw. Vrbohrefn 1e _
Schuhtabtouf I. Ertvbn s Vbo2. Schxht 11
bnfrostruktur Schthtabteafen S * IEkirichng des Abteufplatzes *Abteu en der Gefrierbohrlidcher 7
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Ln!*ire crhundung 12Auffahren der Untersuchungsstrecken - -u Grumebet umo a Erkundungs-
Endeleru gwetk -l " at-rfilt-Deriian" anest- - - -wa saitsto? S
ndg3tUgo CGo-ke;waigx 4' stellung) i l l l I 1 1 tI S I f
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1. StmndortSeschlull der giorungscief s von Entscheidung *scoetidungn * HAW. GlasblocklagerBund nd Lndern t Entsorgung iber ndee aier den Salt- 2. Oeckgeirgeder Kernkrattwerke. 26.9.79 Entsorgungs stock Gorleben f 3 Stirfille. allgemein
to**" * Erste quant. Aussagen- gib~~~~~~~~~~~~~~~~ter ndagir-
Zif er - m ichkeiten
General Schedule PTB/DBE1.7. 1981
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Underground Exploration
t Objectlves
The underground exploratory program is aimed at obtaining data forconfirmation Is required on the geometry and Internal structure of thehorizontal plain at the repository level of the salt dome for its totallength as well as across the dome up to the lateral safety pillars.In addition data are required for parts of the area to a vertical depthof 300 m below this level
2. Work Schedule
Two shafts will be sunk and connected by a drift Two parallel drifts,approximately one kilometer apart, following the long axis of the salt domewill be mined and cross- cuts will be driven. Exploratory core drilling willbe driven. Exploratory core drilling will be performed to the flanks, intothe central parts and to depth.Drilling and geological Interpretative work will be enhanced by variounsgeophysical surveys, e. g. HF measurments.
dibt Planned Underground Investigation Gorleben 1P9 8 G
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_ - Salt domeExtent of salt dome to be investigby drifting cross-cutting and drillin
L Main drifts and cross cuts divide themine into 9 exploratory sections
t~IJt | Underground Reconnaissance Gorleben 1985.
b~ WCOT= FAM" ~ N
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Parameters for Selection of Shaft Locations
1. Geological and rock mechanical parameters
- evaluation of various Zechsteln series as the host rock for optimal shaftlocation from the view-point of geology and mining geology
- evaluation of drill core for rock mechanical properties to achievemaximum shaft stability
Resulata Selection of specific Zechstein series and salt type for shaft location
2. Underground and mine specific parameters
- effects of and thru the underground workings
- operational considerations for shaft vicinity and infra- structure area
Result, Operational requirements on shaft location
3. Surface factors and parameters of overlying rock formations
- topography, environmentally sensitive areas, habitation, land use,land ownership
- depth to salt stratigraphy, composition of overlying rocks
Results General requirements for shaft location
3 |b Shaft Location - Concept 1985P- G
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Meter 1000 500 0 1 2 Kilometer
location of shaf ts 1
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112-1111pi'll III M M- = -- =...-~
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r
t Site Preparation
Preparation of shaft site, construction of service buildings and supportfacilities, access and road construction.
2. Development of Frost Wall
Drilling and preparation of freeze and temperature control holes,set- up and hook- up of refrigeration plant, freezing process.
3. Shaft Sinking
Set up, assembling of sinking hoist winches and auxiliary equipment,shaft sinidng In protective frost body, contemporaneous preliminaryining of shaft walls, after penetration of frost body construction offinal concrete and steel lining, shaft sinking in salt formation andgradual thawing of frost wal preparation of bottom shaft station, sinkingIn salt formation and gradual thawing of frost wall, preparation ofbottom shaft station, sinking to final depth, test of facility andcommissioning.
db |Shaft Sinking Procedure 1 985P- G
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Gefrierbohrung
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dJI b |Freeze hole and geological profile 1 985--- ~~~~~~~~-
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Ringpipe ~~ ~
Brine inflow -4O. ~ 1Freezing fluid4.1
Brine return
Brine sink pip .Freezing pipe ~ Projected Shaft - , 1Frost wall
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pipe
Temperature control hole 0
dib |Build -up of Frost Wall 1985P -G
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System of freezing fluid circulation 1 9 8 5- G
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hoist
shaft doors ibrine distributionmuck-box /
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galloway
Shaft sinking equipment 1985P -G
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concrete blocks iI
Ibituminous apron 200 BITsteel- sheet- liner I8mmmortar fill _
steel reinforcedconcrete liner50- 110 cm
r- --- �
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Bitumen 50 BITSand bitumen mixture
gunned concrete20 11'00
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anti friction material
control and injection holeinjection space, gravel-
KLmmmm
w. _
bitumen coating shaf liner foundationsteel liner 90 mm
bitumen board Jf . _ . .
600
cement grout .q.
thrust ring
ductile material
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19 85Final lining Of freeze shaft P
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Flu
C
CPreliminary Lining
Cutting and drilling
Shaft Sinking Procedure
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freeze hole
fracture
shaft wallI
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Freeze shaft in rock salt 1 9 8 5
(from: Kali und Steinsalz) P- G
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Excavation and Construction of Facilities in the Infrastructure Area
Following the shaft sinking and the nterconnecting of the shafts, thesurrounding areas of the salt dome will be nvestigated by horizontalcore drilling.
The rooms and drifts for operation and suppiles will be excavatedby standard drill and blasting techniques.
Salt mined In this process will be transported to the surface for disposalusing the facilities of shaft 2.
Contemporaneously shaft 1 will be prepared for men, material and salt hoisting.
Following the excavation of operational rooms and supply storage areas,the facilltes will be equipped and activated.
dib j Development of Infrastructure Area 19 8 5P - G
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~- ~-d . - - mommum- M-
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9 x 10 x 5 m
Schacht unterf ahrung
I x 10 x S m Schnitt A - A
[- m A
- 400 , c
Infrastructure Areaplan
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Underground Exploration
i Objectives
By means of drifting, core drilling and geophysical surveys an areacomprising 18 km2will be Investigated In detailAlong strike of the salt dome 9, 4 km will be evaluated, with of the areawill be 1 85 km In the western and 0 km in the eastern part of thesalt structure.
2. Work Schedule
The east and west wing wiN be subdivided into specific exploration areas.Work will proceed from the nfra- structure area in the vicinity of the shaftsto the out- lying areas.
Work will ental$
- exploratory drilling for selection of length and of direction of drifts- drifting (main drifts and cross- cuts)- exploratory drilling of central fields, to the flanks and to depth
Underground Exploration - Concept 1985d b~~~~~~~~~ _ _~~~~P
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1 AEW- - - - M am-.. ft- a- h...A
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Salt dome rim
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I-B L500 1 5Jo Isol- * -1000 m
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3ERGWERK ZUR:RKUNDUNG DES3ALZSTOCKES GORLEBEN
Physikalisch-Technische (Bundesanstalt (PTB)Bundesallee 100D-3300 BraunschweigTelefon: 0531 /5920Telex: 9-52 822 ptb dTelegramme: bundesphysik braunschweig
PTB
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Die untert~gige Erkundung des Salzstockes Gorleben Diese Arbeiten wurden bisher durchgefuhrt, ...wurde von der Bundesregierung am 13.07.1983 beschlossen und umfatdas Abteufen von zwei Schachten, das Auffahren von Erkundungs-strecken und das Herstellen von Kernbohrungen im Salzstock in derTeufe von ca. 840 m.
An dem Schachtstandort wurde Ceine Bohrplattform aus Betongegossen,auf der
die Bohrmaschinen aufgestelltwurden, die die Gefrierbohr-locher herstellten.
Die Bohrarbeiten
wurden geologisch, gesteins- (mechanisch und vermessungstech-nisch ausgewertet.
Zeitablauf nach Rahmenterminplan 1983 -1992 Bohrarbeiten Schacht 1: 16.10.1984 bis 18.10.1985
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* . (.. urn den Frostko5rper und den Vorschacht herzustellen Und ab jetzt werden durchgefuhrt: . 1
Das Abteufen des Schachtes Gorleben 1 wird mit Schram-, Bohr- und Sprengarbeitdurchgefuhrt, das geloste Gebirge mit einem Greifer in den KObel geladen und nachTage gefordert und dort in die Bergebox entleert.
Nach Fertigstellung der Gefrier-und Temperaturmelbohrl6cher wurdeder Gefrierkeller gebaut und dieGefrierleitungen zu den Gefrier-bohrlochern verlegt.
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Gleichzeitig wurden die Gefrier-maschinen installiert, die Tempe-raturuberwachungseinrichtungenangeschlossen, und der Gefrier-prozeB gestartet.
Das Teufen des Vorschachteswurde im Schutz des Frost-korpers in ,,offener Bauweise"durchgefuhrt.
Vorschachtteufen 17.3. - 18.6.86Beginn Schachtteufen 18. September 1986Ende Schachtabteufen nach Zeitplan: Anfang 1989Beginn Gefrieren 24.10.1985
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Deutsche Gesellsch( I Bauund Betrieb von Endlabern frAbiallstoffe mbH (DBE)Woltorter Str. 74D-31 50 PeineTelefon:051 71 /43-1Telex: 92646dbedTelelax: 0 51 71 / 43-218
SCHACHfGORLEBEN 11. KOBEL AM18. SEPTEMBER 1986
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