ML18114A749
| ML18114A749 | |
| Person / Time | |
|---|---|
| Site: | Surry, Beaver Valley  |
| Issue date: | 05/25/1979 |
| From: | Neighbors J Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7907030045 | |
| Download: ML18114A749 (7) | |
Text
e-e 2 5 1979 Docket (J~os -~-50-280
________./
50-281 ---
and 50-334 LICENSEE:
Virginia Electric and Power -Company (VEPCO) and Duquesne Light.Company (DLC)
FACILITY:
Surry 1 & 2 *and Beaver Valley
SUBJECT:
SUMMAR'{ OF MEETING i'JAS HELD ON MAY 229 1979, AT STONE AND 1-JEBSTER TO REVIEW SOIL STRUCTURE INTERACTION METHODOLOGY -
The subject meeting was' held at the Stone and ltlebster (S & W)" Building in Boston, Massachusetts with S&W, VEPCO and DLC.
A list of attendees is attached.
On May 14, *1979, by telephone and on May 18, 1979, by letter several questions were asked of VEPCO and DLC-by the staff. The response to these questions,1-\\C to pl"ovide a basis for accepting the use of soil structure interaction at Surry and Beaver Valley.
The following agenda was followed for each facility and corresponds to the questions asked:
- 1. Clarification of soil properties-used in REFUND, KINACT, AND PLAXLY.
- 2.
Comparison of ARS,using the low strain shear modulus, shear modulus from the first iteration of SHAKE and the last iteration of SHAKE.
')
.). (i) Effects of varying the low strain soil properties by +50% on the results of the SMAKE analysis.
Comparison of res*ponse spectra at the mat foundation level and at the free field.
(ii) Effects of {_i) on the amplified floor response spectra at various locations.
The informai:i'Clllpresented in response to the May 13, 1979 will be provided by letter from each licensee and discussed further in a meetfog to be held on-May.24, 1979 at Bethesda.
Tim purpose of this meeting was to review the information on an expedited basis and to determine, based on
. the review, if any additional information is needed.
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DATE..
me FORM 318 (9-76) NRCM 0240
'* u.u. QOVl!!RNMKNT 18RINTING Ol"P'ICE: 1 u1e
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- 7Gi
e Meeting Summary for Surry 1/2 and Beaver Valley As. a result of our review-of the information at hand we requested that the following be pr.nvided.
Sur~,y_:
- 1. All curves on the same scale.
- 2.
The numerical data for the response spectra for the range of interest for 1% damping and the low strain G and G+
50% at high strain.
- 3.
Ratios of the low strain G and the high strain G+50% to the average value for the 1% damping curves for the area of interest.
- 4.
The lowest frequency of piping systems involved in the reanalysis.
- 5. Clarification of the FSAR damping value (1% or 1/2%).
Beaver Valley-
- 1.
Peak broadened spectra for the response spectra prov~de~.
Card decks were provided for both the Surry and Beaver Valley artificial earthquake.
Or*
- iginaJ $igned By J. D. Neighbors, Project Manager Operating Reactors Branch #1 Division of Operating-Reactors
Attachment:
List of Attendee~
cc: w/attachment
- See Next Page
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, DATIi.
.......................... ~....................................................................................................
ffl1C FORM 318 (9-76) NRCM OZ<Ce
~,S, QQVERNMIENT PRINTING O~'FICE: I 071 - 115 ""715a
NRC 0:-Nei ghbors J. Kane K. Herring ff. Polk J. P. Knight P. T. Kuo S. Chan
'J. Greeves VEPCO c:-i:r.- Robinson StH~
S::-Rossier C. Reeves A. Wang K. Condon J. Urchs S. Lucks F. Vetere D. Campbei 1 DLC W:-t~ang A. Eggenberger P. Rizzo {D'appolonia)
List of Attendees at May-22, 1979 Meeting e
ATTACHMENT
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DATIi:~
MC l10IW 318 (9*76) NRCM 0240 U.S. QOVERNM!!NT ll'RINTING Ofl'l"ICB: 1171
- 28!1
- 799
I.
Docket Nos. 50-280 50-281 and 50-334 e
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555
.'!:A Y
- 5 lS79 e
LICENSEE:
Virginia Electric and Power Company (VEPCO) and Duquesne Light Cimpany (DLC)
FACILITY:
Surry l & 2 and Beaver Valley
SUBJECT:
SUMMARY
OF MEETING WAS HELD ON MAY 22, 1979, AT STONE AND WEBSTER TO REVIEW SOIL STRUCTURE INTERACTION METHODOLOGY The subject meeting was hel~ at the Stone and Webster (S&W) Building in Boston, Massachusetts with S&W, VEPCO and DLC.
A list of attendees is attached.
On May 14, 1979, by telephone and on May 18, 1978, by letter several questions were asked of VEPCO and DLC by the staff. The response to these questions is to provide a basis for accepting the use of soil structure interaction at Surry and Beaver Valley.
The following agenda was followed for each facility.and corresponds to the questions asked:
- 1.
Clarification of soil properties used in REFUND, KINACT, and PLAXLY.
- 2.
Comparison of ARS using the low strain shear modulus, shear modulus from the first iteration of SHAKE and the last iteration of SHAKE.
- 3.
(i) Effects of varying the low strain soil properties by +50% on the r~sults of the SHAKE analysis.
Comparison of response spectra at the mat foundation level and at the free field.
(ii) Effects of (i) on the amplified floor response spectra at various locations.
The information presented in response to the May 18, 1979 will be provided by letter from each licensee and discussed further in a meeting to be held on May 24, 1979 at Bethesda.
The purpose of this meeting was to review the information on an expedited basis and to determine, b~sed on the revie~, if any additional information is needed.
I
Meeting Summary for Surry 1/2 and Beaver Valley As a result of our review of the information at hand we requested that the following be provided.
Surry:
- l. All curves on the same scale.
- 2.
The numerical data for the response spectra for the range of interest for 1% damping and the low strain G and G+
50% at high strain.
- 3.
Ratios of the low strain G and the high strain G+50% to the average value for the 1% damping curves for the area of interest.
- 4.
The lowest frequency of piping systems involved in the reanalysis.
- s.
Clarification of the FSAR damping value (1% or 1/2%).
Beaver Valley:
- l. Peak broadened spectra for the response spectra provided.
Card decks were provided for both the Surry and Beaver Valley artificial earthquake.
Attachment:
List of Attendees cc:
w/attachment See Next Page
~. ~ '. l~;~hif ~: ~r~j ect Manager
~perat1ng1<eactors Branch #1 Division of Operating Reactors
~
11' NRC 0:-Nei ghbors J. Kane K. Herring H. Po 1 k J. P. Knight P. T. Kuo S. Chan.
J. Greeves VEPCO C. M. Robinson S&W S.Rossier C. Reeves A. Wang K. Condon J. Urchs S. Lucks F. Vetere D. Campbell DLC W.Wang A. Eggenberger P. Rizzo (D'appolonia) List of Attendees at May 22, 1979 Meeting e
ATTACHMENT
- 1~
Meeting Summary for Surry 1/2 and Beaver Valley Docket Files NRC PDR Local PDR ORBl Reading NRR Reading H. Denton E. Case V. Ste 11 o D. Eisenhut B. Grimes R. Vollmer A. Schwencer D. Ziemann P. Check G. Lainas D. Davis B. Grimes T. Ippolito R. Reid V. Noonan G. Knighton D. Brinkman Project Manager OELD 0 I &E ( 3)
- c. Parrish ACRS ( 16)
NRC Participants J. Buchanan TERA Licensee Mr. Michael W. Maupin Hunton and Williams Post Office Box 1535 Richmond, Virginia 23213 Swem Library College of William and Mary Williamsburg, Virginia 23185 DonaldJ. Burke U. S. Nuclear Regulatory Commission Region II Office of Inspection and Enforcement 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 e
MAY
!:. 5 1979