ML20137A410
| ML20137A410 | |
| Person / Time | |
|---|---|
| Issue date: | 07/09/1985 |
| From: | Miller H NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Costanzi F NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| Shared Package | |
| ML20137A398 | List: |
| References | |
| CON-FIN-D-1192 8511250487, NUDOCS 8511250490 | |
| Download: ML20137A410 (23) | |
Text
.
Enclo:ura (g i
UNITED STATES 8
NUCLEAR REGULATORY COMMISSION o
h f
WASHINGTON, D. C. 20555
- *****j JUL 9 1985 MEMORANDUM FOR:
Frank Costanzi, Chief Waste Management Branch Division of Radiation Programs and Earth Sciences, RES FROM:
Hubert J. Miller, Chief Repository Projects Branch Division of Waste Management
SUBJECT:
REVIEW 0F RES PROJECT FIN D1192 " SALT SEALING AND SUPPORT" As you requested by memorandum dated June 14, 1985 the DWM staff has reviewed the Statement of Work for the RES Project D1192 " Salt Sealing and Support". DWM supports this project, subject to resolution of the coments which are documented in the enclosures.
If you have any questions or would like further clarification of our coments, please contact Atef Elzeftawy of mystaff(x74675).
/' I{u.
m
. o ert J. Miller, Chief L pository Projects Branch Division of Waste Management
Enclosures:
- 1. General Coments
- 2. 50W Mark-up e
(?#0 05112ho$90851207 49g PDR
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GENERAL COMMENT
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1.
The 50W does not describe how the literature study (Task 1) will be l
applied to Tasks 2-4.
Laboratory tests should be developed based on results of previous tasks.
Individual tasks should be more descriptive.
2.
The 50W does not consider how a " representative" site will be chosen. A good site to study should be one that is reasonably similar to salt site (s) being studied by D0E. Sealing problems studied in an " ideal" salt mine may not provide enough data on sealing a bedded salt site.
3.
The research project should emphasize bedded salt for two reasons.
First, the DOE primary salt site is bedded (Palo Ouro), and second, the work on domal salt may not be generic enough to generalize the results and apply it to bedded salt sites.
I
_________________._________J
1 STATEMENT OF WORK FIN: D1192
Title:
Salt Sealing and Support NRC Project Manager: Jacob Philip Type of Contract: Request for Proposal l
l Period of Performance:
1 January 1986 - 31 December 1988 l
l BACKGROUND 1
10 CFR Part 60 requires sealing of boreholes and shafts produced during the construction of the high-level waste repository to assure that such openings do not become preferential pathways for ground water. DOE also shall seal f
fractures produced by construction to assure that fractures produced do not l
create preferential pathways, l
l l
OBJECTIVE l
The objective of this contract is to provide NRC with an independent capability to evaluate DOE documents which address sealing of fractures and openings in salt repositories for HLW. Specifically, this research is to assess the f
effectiveness of existing materials and technology for use in sealing l
repositories in bedded and/or domed salt.
WORK REQUIREMENTS This contract will specify work which needs to be done by the contractor over a l
three year period beginning on the award of this contract.
l
SCOPE OF WORK In the following tasks, NRC expects the contractor to adopt an approach which integrates, field experience and experimentation, laboratory experimentation, and theoretical considerations with the goal of helping NRC develop a sufficient understanding of current sealing methods and techniques which will be considered in making licensing decisions and to prepare technical position papers. The tasks described below are written with these objectives in mind.
In performing these tasks the contractor shall investigate existing materials and technology for sealing strata around tha salt and within the salt itself (e.g.,beddedsaltand/orsaltdomes). The contractor shall provide a salt site (e.g., existing salt mine or salt dome) or a shale, limestone or anhydrite site with suitable boreholes at which to investigate the effectiveness of emplaced seals. The contractor's proposal shall consist of a sufficiently detailed work plan with schedules and which identifies the experimental approach, theoretical methods and parameters to be examined for each task under SCOPE OF WORK. The work plan shall include but not be limited to analysis of uncertainty regarding extrapolation of cata between sites and physical and chemical interaction between seal materials and host rock and shaft liners.
Emplaced Seals in Salt Work reouired for this task is the experimental assessment of existing technology for sealing of penetrations, e.g., shafts and boreholes into the repository (i.e., in salt) and the sealing of formations surrounding the salt (e.g., anhydrites, sedimentary rocks in domed 1, alt, or anhydrites, shale, clay, limestone, etc. in bedded salt fomations). Seal material, emplacement techniques and required equipment shall be studied as well as laboratory and field characterization procedures. The sealing materials and the overall sealing systems technology (i.e., including emplacement effects) will be 2
l applied towards the experimental performance assessment of sealing systems in mined geological repositories in salt. The work also includes a literature study of sealing techniques currently employed in mining in bedded and domed salt.
TasklyLiteratureStudyofSealingTechniquesinSaltMining The contractor shall conduct a review of available literature on sealing techniques currently employed in salt mining (bedded and domed salt). The review shall include techniques employed to seal salt confining units and the salt formation itself during the drilling of boreholes, shafts, etc., the sealing materials used, the use of liners, grouting of acquifers, and failures in salt mining operations due to water ingress, creep, gas outbursts, etc., and l
decomissioning procedures.
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Task 2 Salt Sealing Laboratory Performance Assessment km wth4.$
Subtask 2.1 Sealing of h ae-S lt for the following conditions o
Temperature:
Ambient to 250*C (intennediate temperatures e.g., 60.*C, 150*C, 200*C shall be included) o Stress:
Atmospheric and up to 20MPa (some intermediate stress levels shall be included) o Combined Thennal and Stress Conditions:
1 The tests will involve installation and testing, (e.g., constant and variable pressure water injection tests, dye-injection tests, push out tests) of seals in salt blocks.
Sealing materials to be used shall be cement, earthen materials and crushed salt. Additional materials may be identified and investigateo during the term of this contract.
Flow testing fluids pbesaturatedsaltbrineand/orgas.
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Subtask 2.2 Sealing of nonhomogeneous salt 6
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Enclosure [ Q-I t STATEMENT OF WORK TITLE: Salt Sealing and Support FIN: 01192 NRC PROJECT MANAGER: Jacob Philip TYPE OF CONTRACT Request for Proposal PERIOD OF PERFORMANCE: 1 January 1986 - 31 December 1988 BACKGROUND: 10 CFR Part 60 requires sealin'g of boreholes and shafts produced during the construction of a high-level waste repository to assure that such openings do not become preferential pathways for ground water. Fractures produced by construction shall also be sealed to assure that fractures produced do not create preferential pathways. OBJECTIVE: The objective of this contract is to provide NRC with an independent capability to evaluate DOE documents which address sealing of fractures and openings in salt repositories for HLW. Specifically, this research is to assess the effectiveness of existing materials and technology for use in sealing reposi-tories in bedded salt. WORK REQUIREMENTS: This contract will specify work which needs to be done by the contractor over a three year period beginning on the award of this contract. SCOPE 0F WORK: In the following tasks, an approach will be used which integrates field experi-ence and experimentation, laboratory experimentation, and theoretical l l i
.a.. considerations to investigate current sealing methods and techniques for salt and associated media. These investigations will be aimed at providing suf-ficient information and understanding to support informed licensing decisions and the prepration of technical position papers. The tasks described below are written with these objectives in mind. In performing these tasks the contractor shall investigate existing materials and technology for sealing strata around the salt and within the salt itself (e.g., bedded salt). The contractor shall provide a salt site (e.g., existing salt mine) or a shale, limestone or anhydrite site with suitable boreholes at which to investigate the effectiveness of emplaced seals. The contractor's proposal shall consist of a sufficiently detailed work plan (with schedules) which identifies 'the experimental approach, theoretical methods and parameters to be examined for each task under SCOPE OF WORK. The work plan shall include but not be limited to analysis of uncertainty regarding extrapolation of data between sites and physical and chemical interaction between seal materials and host rock and shaft liners. Emplaced Seals in Salt Work required for this task is the experimental assessment of existing technology for sealing of penetrations, e.g., shafts cnd boreholes, into a salt repository and the sealing of formations surrounding the salt (e.g., anhydrites, shale, clay, limestone, etc. in bedded salt formations). Seal material, emplacement techniques and required equipment shall be studied as well as laboratory and field characterization procedures. The work also includes a literature survey of sealing techniques currently employed in mining in bedded and domed salt and analytical studies to select sealant methodologies. 2
l Task 1 Literature Survey and Analytical Studies of Sealing Techniques in Salt Mining Subtask 1.1 Literature Survey of Sealing in Salt The contractor shall conduct a review of available literature on sealing techniques currently employed in salt mining (bedded and ~ domed salt). The review shall include techniques employed to seal openings in salt confining units and the salt formation itself during the drilling of boreholes, shafts, etc., the sealing materials used, the use of liners, grouting of acquifers, and failures in salt mining operations due to water ingress, creep, gas outbursts, etc., and decommissioning procedures. Subtask 1.2 Analytical Study to Select Sealant Methodologies and Materials for Laboratory and In-situ Research R Based upon results of the literature review, the contractor shall perform analyses to identify sealant methodologies and materials which are most likely for potential use within the salt repository program (bedded salt only). Methodologies for use in sealing during operation (both salt sealing and aquitard sealing) and in sealing prior to decommissioning should be considered. Sealing materials to be considered should include (1) cement base sealants tailored to be compatible with the potential rock environment; (2) earthen based sealant materials tailored to be compatible with the potential salt rock environment; (3) crushed salt materials; and (4) others which may be identified during the process of the effort. Subtask 1.3 Detailed Work Plan Based upon the results of Subtasks 1.1 and 1.2 the contractor shall prepare for review and approval by the NRC project manager a detailed work plan (including milestones and schedules) for accomplishing the study outlined in tasks 2 through 4. The detailed work plan shall be submitted no later than 4 months after award of the contract. 3
~ e Task 2 Salt Sealing Laboratory Performance Assessment Subtask 2.1 Sealing Homogeneous Salt Tests shall be undertaken of the installation and testing (e.g., constant and variable water pressure injection tests, dye-injection tests, push out tests) of seals in salt blocks under the following constraints: o Temperature: Ambient to 250 C (intermediate temperatures e.g., 60"C, 150*C, 200 C, shall be included) o Stress: Atmospheric and up to 200MPa (some intermediate stress levels shall be included) o Sealing Materials: Cement, earthen materials, crushed salt, other materials identi-fied and investigated during the term of this contract with the approval of the NRC Project Manager o Flow testing fluids: Saturated salt brine and/or gas. Subtask 2.2 Sealing of Nonhomogeneous Salt Boreholes in blocks of salt with representative in-situ interbedding laminations (e.g., anhydrite, clay seams, carnallite, etc.) shall be sealed and tested in a series of experiments. The experirr.ents will involve the installation and testing (e.g., constant snd variable water pressure injection tests, dye-injection tests, push-out tests) under the following constraints: 4
~ o Temperature: Ambient to 250'C (intermediate temperatures, e.g., 60'C, 150'C, 200*C shall be included) o Stress: Atmospheric and up to 200MPa (some intermediate stress levels shall be included o Sealing Materials: Cement, earthen materials, crushed salt, other materials identified and investigated during the term of this contract with the approval of the NRC Project Manager o Flow testing fluids: Saturated salt brine and/or gas Note: Interbedding laminations should be oriented horizontally to simulate bedded salt environments Task 3 Laboratory Assessment of Sealing Performance of Salt Confining Units Sealing of Anhydrites, Shales, Anhydrite-Shale Salt Boreholes in blocks of the above rock types shall be sealed with cementitious and earthen plugs. Sealing performance shall be tested by injecting' appropriate fluids (brine, water, gas) and measuring flow through the seals. The experiment shall be performed under the j following constraints; ~ ~ o Temperature: Ambient to 150 C (Intermediate temperatures, e.g., 60 C, 100*C, shall be included) l l l o Stress: Atmospheric and up to 200MPa (some intermediate stress levels shall be included) l l l l l l
~ 4 Task 4 In-situ (field) Assessment of Borehole Seals Y Shallow holes (15 to 30 foot depths) will be drilled, sealed and tested in a salt mine reasonably similar to salt sites being studied by the DOE or alternatively on a shale, limestone, or anhydrite fonnation. Sealing materials shall be selected based on laboratory test results. Flow testing shall be conducted with saturated salt brine, water or gas. Tracer tests shall also be performed to deter-mine travel times. A complete geotechnical properties evaluation of the rock materials to be tested will be accomplished to determire the pertinent rock material properties to be used in selecting the sealant materials. Rock properties to be tested include rock classification, index properties, rock strength including dynamic moduli, rock thermal properties, petrographic analyses, creep, and hydrologic properties (e.g., porosity, permeability). REPORTING REQUIREMENTS 1. The contractor shall submit monthly financial status reports within 15 days of close of each month. 2. The contractor shall submit Quarterly Progress Reports within 30 days of close of FY-Quarters. The Quarterly Progress Reports shall summarize all l technical tasks conducted during the corresponding quarters. Significant findings and conclusions pertinent to the objective of the project should be highlighted in the Quarterly Progress Reports. Budgetary and l administrative information shall be provided in a separate Quarterly I Administrative Report which includes the comparison of actual and projected expenses, and other related administrative activities. L 3. The contractor shall submit Technical Reports at the conclusion of research tasks. Technical Reports shall be self-contained, and will be j suitable for publication as a NUREG/CR report. Technical Reports should r. i
I include an Executive Summary that summarizes the research results with regard to the project objectives as defined in the Statement of Work or f contract. This is specifically designed to enhance the usability of reports to the licensing staff and the agency as a whole. Determination of topics and reporting schedules shall be made by the NRC project manager and contractor jointly. 4. A copy of all written and oral presentations given at professional meetings and technical papers submitted for publication in technical journals which is related to or funded by this project will be transmitted to the NRC technical project manager. 5. Report Distribution: (a) Technical and Quarterly Progress Reports Technical Project Manager 7 copies Director, Div. of Radiation Programs and Earth Sciences, Office of Nuclear Regulatory Research I copy Chief, Earth Sciences Branch Division of Radiation Programs and Earth Sciences, Office of Nuclear l Regualtory Reserach I copy Chief, Waste Management Branch, Division Radiation Programs and Earth Sciences, Office of Nuclear l Regulatory Research I copy Director, Div. of Waste Management, Office of Nuclear Material Safety and Safeguards 1 copy Document Control Center, Office of [ l Nuclear Material Stfety and I Safeguards I copy i
i l (b) Monthly Financial and Quarterly Administrative Reports f Technical Project Manager I copy (c) Microfiche Microfiche is required of all reports to be published as NLREG or s NUREG/CR documents. The specifications for this microfiche are listed on the last page and the distribution is as follows: Document Management Branch Division of Technical Information and Document Control, 1 master Document Control Center Division of Waste Management, Office of Nuclear Material Safety and Safeguards, i duplicate QUALITY ASSURANCE The contractor shall develop and submit to NRC for review a quality assurance (QA) program plan for work to be performed under the contract or shall indicate that a previously approved, applicable Q.A. program will be applied to the work under this contract. Any work (i.e., data, interpretations, analyses, computations, methods, etc.), developed un' der the contract shall be performed under an adequate quality assurance program. Quality assurance comprises all those planned and systematic actions necessary to provide adequate confidence that the research has been satisfactorily performed. Quality assurance includes sufficient documentation to assure the reproducibility of the results of the research. That is, the methods and techniques used to collect, reduce, and interpret data produced by research are sufficiently accurate, traceable, and articulate so that other researchers could duplicate the work done and independently evaluate the results. 8
An adequate QA program should address the following areas as appropriate. I experimental design and rationale--sample selection, number of samples, sampling frequency, controls; statistical evaluation of experimental design--assessment of statistical power, of sampling scheme and measurement techniques, including expected accuracy and precision; sample preparation--selection of sample type, treatment of samples, sample identification; measurement techniques used--description of measurement process, description / identification of equipment used; calibration methods--frequency, techniques, standards, traceability; data recording--method of recording data, identification of person (s) recording / certifying data; data reduction--methods and code (s) (including identification of modifications and updates); data analysis--description of techniques used, methods of data verification (e.g., spot checking of measurements, calculations, etc.); records management--identification, location, and retention time of data, analyses, associated records, duplicate data and/or records; and statistical evaluation--interpretation of data, stating actual accuracy and precision of results achieved. In addition, if standard test or calibration procedures are employed (e.g., ASTM standards) these should be cited in the program. Finally, if appropriate to the size and nature of the contract, the work and results should receive exposure in the scientific community through publication of results in refereed journals, or through peer reviews, or both. 9 I
t 0 MEETINGS AND TRAVEL The contractor and subcontractor shall present the technical progress of the project at NRC headquaters at least annually. Any travel to be charged against project funds requires prior approval by the NRC project manager. DOE FURNISHED MATERIALS None NRC FURNISHED MATERIALS None CAPITAL EQUIPMENT All capital equipment expenditures require the prior written approval of the NRC Project Manager. SUBCONTRACTS Subcontracts require the prior written approval of the NRC Project Manager. DISPOSAL OF PROPERTIES Not applicable LEVELS OF EFFORT The expected level of effort for this project is approximately two and one quarter man-years per year. TECHNICAL DIRECTION: J. Philip, NRC Technical Project Manager (FTS 427-4604) will be responsible for directing this project. 10
MICR0 FORM SPECIFICATIONS FOR WASTE MANAGEMENT CONTRACTS Microfiche used for submittal purposes shall conform to the following specifications: 1. Microfiche containing source documentation shall conform to the NMA Type 1 format (ANSI /NMA MS.5) consisting of 98 frames arranged in 7 rows and 14 columns. 2. The reduction ratio shall be 24:1 for all microfiche. 3. The microfiche shall be standard 148 mm x 105 mm. 4. The microfiche shall be one silver-halide master and one diazo placed in individual acid free envelopes. 5. Diazo duplicates may be either blue / black or black. 6. The microfiche shall be titled in the following manner: FIN No. Title of Report Dats~ ~ Contract No. Nureg/CR No. Fiche No. Fiche number refers to 1 of 2, 2 of 2, etc. information. 7. Title information shall be eye readable on a clear background. 8. The submittal of microfiche containing proprietary material shall be coordinated with the Document Management Branch, Division of 11
vru-4 l Technical Information and Document Control, U.S. Nuclear Regulatory Commission, Washington, DC 20555, to set format and procedures for submittal. 9. Foldouts, if any, shall be segmented and filmed in logical order.
- 10. The first frame shall be blank, and the second frame shall contain the resolution target (NBS 1010A).
- 11. Questions on microfiche specifications should be submitted in writing to:
Document Management Branch, Division of Information and Document Control, U. S. Nuclear Regulatory Commission, Washington, DC 20555 12
.' C . c. - Enclo:ura 4 PROJECT-DESCRIPTIVE
SUMMARY
DATE: October 28, 1985 PPSAS NO.: PRIORITY: OFFICE: RES PROJECT TITLE: SALT SEALING AND SUPPORT FIN NO-D-1192 TYPE OF CONTRACT: SOLE SOURCE CONTRACT CONTRACTOR: UNIVERSITY OF ARIZONA ESTIMATED PERIOD OF PERFORMANCE: 3 YEARS PROJECT MANAGER: J PHILIP FY BUDGET ($K): FY86 FY87 FY88 FY89 PRIOR: 0 0 0 0 OPERATING: 233 233 233 0 FOLLOW-0N: 0 0 0 0 DATES PREVIOUSLY APPROVED BY WMRG: Not Applicable SCOPE OF WORK: The work involves an assessment of existing technology for sealing of penetrations, e.g., shafts and boreholes into the repository (i.e., in salt) and the sealing of formations surrounding the salt (e.g., anhydrites, sedimentary rocks, shale, clay, limestone, etc., in bedded salt formations).
Seal material, en. placement techniques and required equipment shall be studied and evaluated as well as laboratory and field characterization procedures. The sealing materials and the overall sealing systems technology (i.e, including emplacement effects) and the performance assessment of sealing systems in mined geological repositories in salt will be studied. The work also includes a literature search and study of sealing techniques currently employed in mining in salt. USER NEED: This project will provide an independent source of information which NMSS/DWM needs to make licensing decisions about the disposal of HLW in salt. In particular, the results of the proposed research will provide a level of confidence on the effectiveness of salt sealing technology. It will provide the NRC with the information to evaluate DOE documents and in its development of guidance proiided for DOE (user need letter from Joseph Davis, Director, NMSS, to Rcbert Minogue, Director, RES dated July 23,1984). PRODUCTS: The contractor will submit quarterly technical reports and monthly financial reports. A camera ready copy of annual technical reports will be submitted in the NUREG/CR format. Technical reports covering the results of all task will also be written in the NUREG/CR format. The schedule of the technical reports will be determined when the contract is awarded. CONTINUATION OF PROJECTS: RES research project FIN B6627, " Rock Mass Sealing and Support," is scheduled to end by the close of calendar year 1985. While that research studied sealing boreholes in basalt and granite, the host rock in this project (FIN 0-1192) will be salt. PRIOR AND CURRENT RELATED NRC PROJECTS: FIN 0-6627 (See above) 2
.5 JUSTIFICATION FOR SOURCE SELECTED AND DISCUSSION OF ALTERNATIVES: P Provided in letter to division of contracts form Division of Radiation Programs and Earth Sciences, RES, September 1985 (copy attached). NRC 0FFICE/ REGION COORDINATION: The user office and the other offices will be inforned of the research results by NUREG reports, research summaries, and research information letters (RIL's). INTERAGENCY C0 ORDINATION AND INTEREST: Contractor personnel will keep abreast of DOE's plans and actions in sealing in salt. DOE will be informed of NRC research results through distribution of NUREG reports. 3 .}}