ML20040B060
| ML20040B060 | |
| Person / Time | |
|---|---|
| Site: | Clinch River |
| Issue date: | 12/30/1981 |
| From: | Check P Office of Nuclear Reactor Regulation |
| To: | Longenecker J ENERGY, DEPT. OF |
| References | |
| NUDOCS 8201250066 | |
| Download: ML20040B060 (4) | |
Text
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DISTRIBUTION:
CRBR reading file m
Docket File NRC PDR Docket No. 50-537 DEC 3 01991 t $
RECEIVED 1
R. Stark 3
JAN6 1982>
8 C. Thomas P. Check ma ttW Nrm
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8 G. Lear
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Mr. John R. Longenecker Licensing and Enviror. mental Coordination fa ng 6
Clinch River Breeder Reactor Plant P. Shuttleworth U. S. Department of Energy, NE-561 S. Treb Washington, D.C.
20545 R. Voll er
Dear Mr. Longenecker:
SUBJECT:
CLINCH RIVER BREEDER REACTOR PLANT, REQUEST FOR ADDITIONAL INFORhAIION As a result of our review of youe application for a construction pemit for the Clinch River Breeder Reactor Plant, we find that we need additional infor-mation in the area of Geotechnical Engineering. Please provida your final responses within sixty days of the receipt of this request.
The reporting and/or recordkeeping requirenents contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P. L.96-511.
If you desire any discussion or clarification of the information requested, please contact R. M. Stark, Project Manager. (301-492-8923).
Sincerely, Orfsinal 5! :ned by t
hul S. Check Paul S. Check, Director CRBR Program Office Office of Nuclear Reactor Regulation
Enclosures:
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1 Geotechnical Engineering PSAR Review Questions Clinch River Breeder Reactor Plant (CRBRP)
Docket No. 50-537 Prepared by:
Dr. J. P. Pearring, GES, HGEB CE 241.1 In accordance with Regulatory Guide 1.70, provide in Section 2.5.4.5 of the PSAR, figures showing plans and e ross sections of the planned seismic Category 1 Steam Generator Building !!aintenance 3ay foundation and diesel fuel oil storage tank foundation.
Indicate planned limits or excavation and in..lude a soil profile indicating depth and areal extent of each type of planned fill and backfill material.
CS 241.2 In accordance with Reg. Guide 1.70, provide in Section 2.5.4.5 of the (2.5.4.5)
PSAR, figures showing plan views and foundation cross-sectiont af typical seismic Category 1 emergency plant service water system (EPSWi electrical duct bank runs and associated manholes.
Indicate limits of e>,cavation and include a soil profile indicating depth and areal extent of erb type of fill and backfill materfal.
The proposed limits of special ackfill materials such as sand cement mixtures should also be identified where appropriate.
CS 241.3 In accordance with Reg. Guide 1.70, expand the discussion of structural
( 2. 5.4. 5 )
fill and backfill materials presenfed in Section 2.5.4.5 of the PSAR to include Womation related to the design strength properties of the proposed lean concrete fill material.
Cite standards and sp'ecifi-catior.s that will govern the mix proportioning of the concrete,m'aterial and the mixing, transportat~ ion, and placing of the material.
Als'o cite appropriate testing standards that you propose to use to assure com-pliance with the established specifications for these concrete backfill ma terial s.
CS 241.4 In accordance with Reg. Guide 1.70, present, in Section 2.5.4.5 of (2.5.4.5) the PSAR, dctails of the proposed instrumentation program planned for use in monitoring rock heave and rebound.
CS 241.5 In accordance with Regulatory Guide 1.70, provide, in Section 2.5.4.5 (2.5.4.5) of the PSAR, a detailed description of the ground motion intensity limits planned for use in controlling damage to fres hly placed
" green" concrete fill mater ial and other concrete which might be placed concurrent with rock blasting for foundation preparation at the site. The Staff considers the planned limits of ground motion intensity resulting from blasting specified in PSAR Section 2.5.4.12 (v = 3.3 ir.:h per sec) to be beyond the tolerable limits of " green" concrete during the early hours of the curing process (3-24 hours after placement).
Specifically, provide the planned limits for ground particle velocity at the location of fresh placed " green" concrete during the time periods of from 0-3 hours, 3-11 hours, and 11-24 hours after fresh concrete is placed.
In the event that blasting will not be permitted on site during the initial 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of curing time for all freshly placed concrete, a commitment to that effect should be provided in Section 2.5.4.5 of the PSAR and included in the plant QA/QC specifications.
4
. CS 241.6 In accordance with Reg. Guide 1.70, expand the discussion of f.2. 5.4.10 )
static stability of safety related structures presented in Section 2.5.4.10 of the PSAR to include an analysis of those safety related structures and components not founded on bedrock.
Include an analysis of bearing capacity of the foundation soils for each structure and estimated settlement (total and differential) of each structure.
Identify design strength values of the fill and backfill natorials used in the analyses and provide rationale supporting the appropriateness of the values selected.
CS 241.7 In accordance with Regulatory Guide 1.70, present, in Section (2.5.4.13) 2.5.4.13 of the PSAR, details of the schedule for installing and reading all proposed instruments for surveillance of foundation settlement to validate the predictions presented in Section 2.5.4.10 of the PSAR. Also identify the type, location and purpose of each proposed instrument.
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a cc:
Dr. Cadet H. Hand, Jr., Director Barbara A. Finamore Bodega Marine Laboratory S. Jacob Scherr University of California Ellyn R. Weiss P. O. Box 247 Dr. Thomas B. Cochran Bodega Bay, California 94923 Natural Resources Defense Council, Inc.
1725 I Street, N.W.
Daniel Swanson Suite 600 Office of the Executive Washington, D.C.
20006 Legal Director U. S. Nuclear Regulatory Commission Washington, D.C.
20555 William B. Hubbard, Esq.
Assistant Attorney General State of Tennessee Office of the Attorney General 422 Supreme Court Building n
Nashville, TN 37219 Luther M. Reed, Esq.
Attorney for the City
~~
of Oak Ridge 253 Main Street, East Oak Ridge, TN 37830 George L. Edgar, Esq.
D yy, Morgan, Lewis & Bockius 1800 M Street, N.W.
s s Washington, D.C.
20036 Herbert S. Sanger, Jr., Esq.
General Counsel Tennessee Valley Authority Knoxville, TN 37902 Chase Stephens, Chief Docketing and Service Section Office of the Secretary U. S. Nuclear Regulatory Commission Washington, D.C.
20555 Gordon L. Chipman Acting Deputy Assistant Secretary for Nuclear Reactor Programs Department of Energy Washington, D.C.
20545 L. Ribb LNR Associates Nuclear Power Safety Consultants 8605 Grimbsy Court Potomac, MD 20854 4
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