ML20209D624

Responds to 841127 Request for Review of SER Section 4.0 Re Identification of Vital Areas.Facility Has Auxiliary Saltwater Sys Not Svc Water Sys

ML20209D624
Person / Time
Site:	05000000, Diablo Canyon
Issue date:	12/04/1984
From:	Parr O Office of Nuclear Reactor Regulation
To:	Thomas C Office of Nuclear Reactor Regulation
Shared Package
ML082410749	List: ML20209A984 ML20209B531 ML20209B624 ML20209B724 ML20209B847 ML20209B894 ML20209C131 ML20209C225 ML20209C292 ML20209C320 ML20209C516 ML20209C643 ML20209C669 ML20209C675 ML20209C698 ML20209C705 ML20209C710 ML20209C715 ML20209C720 ML20209C836 ML20209C847 ML20209C848 ML20209C876 ML20209C881 ML20209C908 ML20209C921 ML20209C969 ML20209C975 ML20209C981 ML20209C993 ML20209D004 ML20209D012 ML20209D018 ML20209D030 ML20209D038 ML20209D044 ML20209D045 ML20209D071 ML20209D089 ML20209D114 ML20209D127 ML20209D130 ML20209D135 ML20209D139 ML20209D146 ML20209D154 ML20209D211 ML20209D218 ML20209D230 ML20209D235 ... further results
References
FOIA-86-197 NUDOCS 8412100264
Download: ML20209D624 (1)

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UMTED STATES i

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i DEC 0419g4 MEMORANDUM R:

C. Thomas, Chief, Standardization and Special Projects Branch, Division of Licensing FROM:

Olan D. Parr, Chief, Auxiliary Systems Branch, Division of Systems Integration

SUBJECT:

REVIEW OF VITAL AREAS FOR DIABLO CANYON NUCLEAR POWER PLANT, UNIT 2 By memorandum dated November 27, 1984 you requested our review of Section 4.0 -

Identification of Vital Areas of the Safety Evaluation Report (SER) prepared i

by NMSS for Diablo Canyon Nuclear Power Picnt, Unit 2.

Subsequent to your request, a meeting between the NRR and NMd5 staff was held concerning vital area identification. During that meeting, it was agreed that ASB would review i

the NMSS SER for information only and would not apply any vital area identifi-cation criteria beyond the present requirements of 10 CFR 73.55.

In accordance with that agreement, we have reviewed the Diablo Canyon, Unit 2 vital areas and have identified no concerns related to meeting 10 CFR 73.55 requirements.

However, the wording in the first paragraph on page 2 of the Appendix is mis-leading in that it identifies "the service water intake." Diablo Canyon has i

no service water system but rather an auxiliary saltwater system.

planIParr.A is

, Chief Auxiliary Systems Branch Division of Systems Integration cc:

R. Bernero L. Rubenstein r

D. Crutchfield i

J. Wermiel J. Gibson H. Schierling

Contact:

J. Wermiel X29462 E

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LICENSEE:

Pacific Gas and Electric Company l

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Diablo Canyon Nuclear Power Plant J

SUBJECT:

NRC MEETING WITH PACIFIC GAS AND ELECTRIC COMPANY -

SEISMIC REEVALUATION PROGRAM FOR DIABLO CANYON a

A meeting was held on November 15 and 16, 1984 in Bgthesda, Maryland regarding the reevaluation program of the seismic design basis for the Diablo Canyon Nu-clear Power Plant. The program is included as a license condition in the full power license for Unit 1 (issued on November 2,1984) and'is discussed in SSER-27, Sections I.!i and IV.S. The program is to include the following four specific elements: geology and tectonics, earthquake magnitude, ground motion, and probabilistic/deteministic analyses. Pacific Gas and Electric Company (PG&E) is to submit a program plan by the end of January 1985, 1

The purpose of the meeting was to address Elements 2 and 3 of the program (earth-quake magnitude and ground motion).- Participants at the meeting were NRC staff, B. Slemons and technical staff from Brookhaven National Laboratory, Lawrence Livermore National Laborat)ry and the U. S. Geological Survey as advisors to 4

the staff, and PG&E staff with consultants. Lists of attendees for both days are enclosed as Enclosure 1.

i November 15, 1984 i

L. Wight, TERA Corporation, described for PG&E the proposed investigation pro-gram to be performed in the earthquake magnitude estimation task. The methods to evaluate the proposed maximum earthquake magnitude include fault length and area, rupture length, slip rate, single event displacement, and historical seis-micity. Details of each of these methods were presented in PG&E viewgraphs (Enclosure 2).

L. Wight described the proposed program for the estimation of ground motion based on empirical data. This study will include the compilation of existing empirical data, model development, regression analysis and the determination of site specific response spectra. Details of this study were presented in PG&E viewgraphs (Enclosure 3).

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J. Frazier and T. Bache, Science Applications International Corporation, de-scribed for PG&E the proposed numerical modelling of the ground motion program.

.! i This program will include the formulation and development of computational methods, the modeling of earthquake recordings, estimation of prediction un-

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certainty and the computation of motions at the Diablo Canyon site. Details are presented in PG&E viewgraphs (Enclosure 4).

Afiier these presentations and a caucus by the NRC staff and its advisnrs the 1

following connents were provided to PG&E as the opinion of the NRC staff and

j its advisors based on the PG&E presentations.

Earthquake Magnitude Estimate 1.

The use of a multiple method approach is good.

2.

PG&E should determine if there is any new infortgation available regarding the 1927 Lompoc earthquake.

3.

The magnitude scale used in this part of the program should be consistent with that to be used in the ground motion study.

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4 The geology studies under Element 1 and the magnitude estimate l

effort under Element 2 should be coordinated. Quantitative geologic expertise should be available at the working level.

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5.

On-shore geologic investigations and remote sensing studies should not be ignored.

6.

Dependency of the conclusions on a model should be avoided i.e.,

the study should not be based on a particular model which may be controversial.

7.

The result of the program should be a deterministic estimate of the magnitude.

Emoirical Ground Motion Studies 1

1.

The overall aporoach appears to be good. However, more details of the program are required.

2.

A free-field estimate of ground motion is needed for the program.

The data used in the study should be free-field data and not include data recorde'd in large structures.

3.

The study should consider estimates of site specific spectral values j

and site specific estimates of peak ground acceleration and velocity (PGA, PGV) and spectral shape, f

4 A uniform set of units and scale should be used consistently throughout the entire study.

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Numerical Modelling of Ground Motion

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The presentation included a high level of detail.

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Performing the numerical modelling study is important for providing insight into the sensitivity of the ground motion to the parameters.

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Bench-marking of results with actual earthquakes, flexibility of parameter

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estimation, and consideration of uncertainty estimates are all important in validating the results.

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4.

It is important to ensure that the parameters used in the modelling study match those which result from the tectonic and geology studies and the magnitude estimates.

i Ei November 16, 1984 j

W. S. Tseng, Bechtel, described for PG&E the proposed soil-structure interac-tion program. Three dimensional soil-structure interaction analysis methods i

l will be employed. All components of near-field strong ground motion will be included in the analysis simultaneously. The analysis will consider seismic i

j wave incidence characteristics including inclined body waves and surface waves.

The analysis will consider the effect of inelastic response, if significant, l

of the plant structures under the strong earthquake ground motion.. Available '

recorded earthquake data at the Diablo Canyon Plant site will be utilized to assist in calibrating the low amplitude dynamic characteristics of the soil-structure dynamic model. Details of the soil-structure interaction program were presented in PG&E viewgraphs (Enclosure 5).

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After this presentation and a caucus by the NRC staff and its advisors the i

following comments were made to PG&E as the opinion of the NRC staff and its i

advisors based on the PG&E presentation.

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1.

The soil-structure interaction program as presented is impressive.

There is a question, however, of whether it can be completed in i

i three years.

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2.

Both of the proposed computer codes, SASSI and Cl.ASSI, have limitations i

l in their methodology and these must be considered.

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There should be some way of addressing the simulation of the uplift pro-l blem, if it exists.

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There is a question as to how well the local site properties are known.

The adequacy should be addressed and demonstrated in the program plan.

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The site instruments and data should be reviewed to assure that the j

instruments are located and installed properly and that the data 1

processing is error free.

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It is important that the ground. motion study and the soil-structure 1

interaction study be well coordinated at the working level so that

'1 there are no mismatches.

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The empirical data base of free-field versus nearby in-structure recordings should be considered for applicability.

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8.

The program plan to be submitted in January 1985 should contain enough

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detail to provide for an adequate review.

At the conclusion of the neeting it was agreed that the third meeting should j

be held on December 11, 1984 to address license condition Element 4 on prob-abilistic risk assessment. A final meeting was tentatively agreed on for mid January 1985 at which time PG&E will address the staff connents made at the 4

l earlier meetings and provide further information on staffing and schedules for the program.

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Hans Schierling, P ect Manager Licensing Branch No. 3 Division of Licensing

Enclosures:

As stated cc: See next page 9

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Diablo Canyon Mr. J. D. Shiffer, Vice President Nuclear Power Generation

l c/o Nuclear Power Generation, Licensing Pacific Gas and Electric Company F

77 Beale Street, Room 1451 San Francisco, California 94106 i

Philip A. Crane, Jr., Esq.

Resident Inspector /Diablo Canyon NPS Pacific Gas & Electric Company c/o US Nuclear Regulatory Comission t',

Post Office Box 7442 P. O. Box 369 San Francisco, California 94120 Avila Beach, California 93424

, -l Mr. Malcolm H. Furbush Ms. Raye Fleming Vice President - General Counsel 1920 Mattie Road j

Pacific Gas & Electric Company Shell Beach, California 93440 Post Office Box 7442 i*

San Francisco, California 94120 Joel Reynolds, Esq.

i John R. Phillips, Esq.

Janice E. Kerr, Esq.

Center for Law in the Public Interest California Public Utilities Commission 10951 West Pico Boulevard 350 McAllister Street Third Floor San Francisco, California 94102 Los Angeles, California 90064 Mr. Frederick Eissler, President Mr. Dick Blankenburg Scenic Shoreline Preservation Editor & Co-Publisher i

Conference, Inc.

South County Publishing Company 4623 More Mesa Drive P. O. Box 460 Santa Barbara, California 93105 Arroyo Grande, California 93420 Ms. Elizabeth Apfelberg Bruce Norton, Esq.

1415 Cozadero Norton, Burke, Berry & French, P.C.

San Luis Obispo, California 93401 202 E. Osborn Road P. O. Box 10569 Mr. Gordon A. Silver Phoenix, Arizona 85064 Ms. Sandra A. Silver 1760 Alisal Street Mr. W. C. Gangloff San Luis Obispo, California 93401 Westinghouse Electric Corporation P. O. Box 355 Harry M. Willis, Esq.

Pittsburgh, Pennsylvania 15230 Seymour & Willis 601 California Street, Suite 2100 David F. Fleischaker, Esq.

San Francisco, California 94108 P. O. Box 1178 Oklahoma City, Oklahoma 73101 Mr. Richard Hubbard MHB Technical Associates Suite K 1725 Hamilton Avenue San Jose, California 95125 Mr. John Marrs, Managing Editor San Luis Obisoo County Telegram Tribune 1321 Johnson Avenue P. O. Box 112 San Luis Obispo, California 93406

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• Arthur C. Gehr, Esq.

Mr. Thomas Devine Snell & Wilmer Government Accountability 3100 Valley Center Project Phoenix, Arizona 85073 Institute for Policy Studies 1901 Que Street, NW Mr. Lee M. Gustafson, Director Washington, DC 20009 i

Federal Agency Relations j'

Pacific Gas & Electric Company 1050 17th Street, N.W.

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Suite 1180 Washington, DC 20036 1

Regional Administrator - Region V US Nuclear Regulatory Commission 1450 Maria Lane Suite 210 Walnut Creek, California 94596 a

Michael J. Strumwasser, Esq.

Special Counsel to the Attorney General State of California 3580 Wilshire Boulevard, Suite 800 Los Angeles, California 90010 i!

Mr. Tom Harris Sacrenanto Bee 21st and 0 Streets Sacramento, California 95814 Mr. H. Daniel Nix

'i

. California Energy Commission 1516 9th Street, MS 18 Sacramento, California 95814 Lewis Shollenberger, Esq.

US Nuclear Regulatory Commission Region V 1450 Maria Lane Suite 210 Walnut Creek, California 94596 1

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.a Eac!esu.re L ATTENDANCE ROSTER y - BETHESA LICENSING OPERATIONS NOVSEER 15', 1984 1

AM MEETING DIABLO CANYON "LONG TERM SEISMIC PROGRAM" TIME 9:00 pg BARCLAY LW EXT. (415) 882-2683 CONFERENCE N LG CONTACT ROOM

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Long-Term Seismic Progr e i

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MAXIMUM MAGNITUDE HISTORICAL PERSPECTIVE pre-Hosgri PE.75 beneath plant 8.50 on San Andreas 7.50 on offshore extension of Santa Ynez 7.25 on Nacimiento Fault

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1927 LOMPOC EARTHQUAKE

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Long-Tern Seismic Program i.

Maximun Magnitude Task j

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Fault Length Rupture 511p Single Event and Area Length __

Rate Displacement.

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Geologic Geologic Studies Geologic Geologic studies Geol 1cstudies f

i Studies Tasks 2 & 3 studies Task 3 Task Task 3-Task 2 Similar geologic settings Imoroved velocity Fault model l

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SLIP RATE INVESTIGATIONS 1

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using relative plate motions, characterize the resulting deformation east and west of the San Andreas l

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Figure 3.

The hypothetical boundaries between the regions which slipped (regions with Eaton et al., 1970).

no aftershocks) and the barriers (regions with aftershocks) were drawn by Aki (1979).

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Lice, Turkey 13 October 1975 6.7 Milford Sound, New Zooland 04 May 1976 6.6 Friull, Italy 06 May 1976 6.5 Tongshan, China 27 July 1976 7.8 Coldiran, Turkey 24 November 1976 7.3 4

i Son Juan, Argentina 23 November 1977 7.4 Izu Peninsula, Japon i4 January 1978 6.7 Thessaloniki, Greece 20 June 1978

.6.4 Guerrero, Mexico 14 March 1979 7.6 Montenegro, Yugoslavia 15 April 1977 6.9 i

l Mexicoll Valley, Mexico 09 June 1980 6.3 Livermore, Collfornio 24 January 1980 5.9 s

Mammoth Lakes, Collfornlo 25 May 1980 6.1 74 Eureko, Collfornlo 08 November 1980 Companto-8ostlicato, Italy 23 Nevernber 1980 6.9 Gulf of Corinth, Greece 24 February 1981 6.8 Urokowo-Oki, Jean 21 March 1982 7.3 Coolingo, Collfornia 02 May 1983 6.5 Howell, HI 16 November 1983 4.7 Goril, USSR 01 March 1984 7.I Morgan Hill, Collfornlo 24 April 1984 6.1 1EIM CORPORATION

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g data froan the ERPM mine (Table IL The reason for using an average Fs 3. Normaliaod peak velocisy parameser as a function oflocal

'j value is thee the hypocentral sease of conhains seress Aucteases above elepeh and seress state. Two circles have been tagged *1" for seasons i

and below the amtmens stress sente in she vicinsey of mine cacavasions where the tremors occur [McGarr et af,1975) gives in caption for Figure 2.

L i;

i

(

l 4-sre3n.'

..co a 'o n

Joressa and CL 3

sooacasei

,,,=.

,, gr.o (A. McGARR, JGRa AucusT 10, 19810 o

e-a"

,,, g g,,

p 3 35mm oo orem c-se to s

O Simmt 5LsP Desm-one i

l

+ sissat.$sp t=e= a==

o o

om,m.3-3sn.

o

. sHnu$f se.g ef,. N.a e

ao e

iz.

0 en r

Ilj Fig 6 The gra nd motion parasmeter av as a function of As. for 4

various subnets of the data chosen accordsag so stress sease and local

(

depeh as described in the seat. All solid lines abrough data have a slope of 1/3.

'.tI i.

e

i

~.

i i

13 V

j 3, Pook Slip Velocity i

• tter*

$2

• beseee" e

I

/

==O /

/

6 O-i jg'

)

8 Rupture Velocity X

• ^aa'"'

I ASPERITY 6

![ /g -' \\

f, h

ri. i. m newier.nemi sa e.p.ra.ia.k. see,ectieciy, for ime r

j ehershe6k and foreshock procuses.

(Ke AKI,J68, JULY,1984) 2 800

~~~

l 2 95 kr.

l

\\r, 1,

0 1

2 3

4 5

6 7

8 9

y X(lun)

X I

f 60en Fso.14. Rupture velock aligvelocity for III, as asectione of penition along the z

'8!

l'

/

/

esia. Feek alip wiecity le been _: -

" 16 tal tinue hinteries. Deelted parte of the niptase

/

wiecity cierve indicate regions which suptureel eut of

e. Per e ruptase occursed at = 64

/{,/

han whale the region between 5.0 and 6.4 kan wee still

• Ihe between nepture velocity and

/

peak shp velocity is particulert evident in this Agure. Note that k is use wetecity which is g;

/

/.. -

s plasted-i.e., the denvetive of rupture arrival tune curve. cey le not by these pestiene

-?

/

.t 18 Iwn f

/

et alie curw which uced the P-ene wiecity.

25 haps f= Z ge nam p/

s' r/

le 05' 11 15 20 2.5 1 j j

l I e 05 ---

/

10 -

l k.

( !

20 - f

I 2 5- -

. 3 Foo.12. Feuk geesnetry for noeuneferum preetsees, preldas Ill.

Fso.13. Hupture front conteure obtained freen the munnerical solusien to preidemi Ill.

Asent

. I is aboon at 0.I nec intervene. Cantoesse et 5.1 and I 9 sec indicate that time rupture lies *'

" wiek the l {

s siepping emarisce becenning teenporarily niish' y connected. Feuk growth beyond 4 = 9 kan and y - 3 has f'

i bee been artificially isihibded by a serength (S. ii. DAY, BSSA, DECEMBER, 1982)

.7_._____.

,g t

l. i u.

24 1-c.

i j

.]

.t TABLE 3 t.

soonca Faneuerena NEAR-8OURCE GROUND MOTION OF THE COYOTE LAER RART90 QUAK I

e incel messutode s.s Setense messent 3.5 x 10"dype<en Displacements Focal saechanasen etsike = N24'W a

Model N1

{

T 2.08 (col SMCC

= 76*

l.95 tcm) 4i FaiJt miss' 40 km' Hupture apsed is km/sec

.69 V

5.13 Hypocenter depth akm Masimum dislocation 120cm Average etmas dmp 30 bare 3.79 GA-6 S.57 l.

i

• h fault eine laere sogards the area with elip greater than aero.

50.22 23.72 2 95 1.99_

b G -6 N24*W I l.69

~~

2.49

[

h

~

2.46 GA-2 5.39

~ -6 cgm 10.1 ij gg.g 1.51 i

{

6.95 7.42 1.0 0

0 t

2 }

6

. !- \\

'4 0

Faa. 8. W tM radialand temoverse " '

snedel NI. W dashed troce in the be

- -ente cenapared arish hetice farthedislocalian Model N1 semsnograma are cal"culated'd *"""'gmnin6 of tiie synthetic messanogram is

""**"""d*'*"*i

L.

r-i for a moment of""0" d"yne cni,"hence th'e average arismic s

.1

" " * " iad ""'i dP " '"'"' ia ""'""'.

'""d uc i

.-12 10 dyne-cm.

1 t

4 0

2 4

6 8

to r

Strike (km) i, ;

the epicenter indicated in Figure 1Faa. 7. De dislocation dintnbution along the fault in our preferred smodet "Ihe manita are nieters. S is (l1U AND llELMBERGER, DSSA, FEBRUARY,.1983)

{'

i i 1-f, i

i

.._.._.._m._..

1-15 i

i d.

a l

'cui { swu

'etio {en oir,

g

• • nc.

@M M p

]

d 4

4 '

s)

' (t i k

k L

s.

an' L

3, i

d

)l x

12 o,

si,., ai m a m e ns ai

]

$ "j*' F ' ' W[Wl\\

f si.

niin in un a ni 7

4 f

'p 29 =

ip 29.=

ip 29 -

]

s,'wiiul[m.i

' Eta,'swu

'Ett 'swu

'et5 d/%,!a$d i' cks.,

ea t

,, m.. =w n =.- m =.==:.=

e..t.wu a-, 8 a w -t u-(HARTZELL AND HELMBERGER, B M, APRIL, 1982) io ao c

i 29

=~c io ao c

R a

I JO itT. e..

"T ;

1. ,c'lll"".!'""ey!1""$g'!

E.TC3.*#c "d W"" 3%'u"u*=".S.Sb 20E'E.c4

{

t.

Cale aco;IH4 ll.a.wille).

4 i

1 i

. ~... _

}

i 16 (COHN, HONG AND HELMBERGER, d[3R, JUNE, 1982) i l

13:37 GMT Aug 8,1975 I

ll lllt L.

.- s Event 20 s

^^agN pgt

}!

,h ) y,'"" ". "c -

N N

4 OBSERVED l

b

' F

!l

',h r ". 1=

DOF 01.D *M h ^ =

^s g

a=

w N

T Ye' 7 A -^

^

A W^=: ^-- - -

)

,_)

i o

o;;;;;

p se Wh 7Y*^# ^ ~^ $5 h

Ia...._.

_ __ S S

SYNTHETC I

N N

h *.-

_J g d

A

't

.I k-h *E r

PAL DTR m

I E

Fis. 7. -. - q of observations with a synehesic based on the 3

sete model given in Table 4.

--k'?ff."%--

+

i Seismogranes for evens 20 at each seation: an saample of the simple fann of seismograms obtained at the i

hard-rock sites OLD and DTR campared so the neore compics signals recorded at the sises PAL and DOF, which are Fig. 4.

l t

bx;ased in shallow, sedunentary basins.

i 4

1975 t

b OBSERVED

'r 7

i

& p g3 +W%

Syn h

82) 20:44 Aug 5 (21) 19 03 Aug 8 tul 2:28 Aug 5 (26) 5 48 Aug 16 0738 s2 26 I

%= 3.2 r*01 Ka31 r *0.2 R*3.3 r*0.3 K 40 r*04 W

$4i g5 h oe2 **

+ Q gg

• • '"*p

]

=-

• 1 ris... c-of e6serva.i as w,i, a syn.he.ie generaia W

with a slightly dippens bottom inscriace and the velocisies given in

-~

+

+f f

f Table 4.

(201 13 37 Aug 8

00) 9 47 Aug 4 (25) 6 *e Aug 31 (el 7.00 Aug 8 J

g*3 2 r*02 g*35 r*02 g*36 r*0.3 ge49 r at.4

?

]

i DTR vertical seismograms and synthetics: the observed records and half space synthetic seismograsus for

.i ~

Fig. S.

[

eight of the Oroville afscrshocks. The duration of the time function is indicated for each event. Nose she consissensly esmple fann of the observed seismograms at this stalion.

i 1

f-i bl 17 i

ij EARTH 00AKE DATA

_IMPORTANT RECENT EARTHQUAKES

)oj COALINGA (1983)

MORGAN HILL (1984)

EVENTSFORUORMALIZINGDELTAP6 BEL

.i BRAWLEY (1976)

i

.,i IMPERIAL VALLEY (1940) wl!

IMPERIAL VALLEY (1979) j LONG BEACH (1933) i PARKFIELD (1966)

1 SAN FERNANDO (1971) i EVENTS M0bELED (TO SOME DEGREE) FOR F El Hz Il SAN FERNANDO (1971) i IMPERIAL VALLEY (1979)

C0YOTE LAKE (1979)

SANTA BARBARA (1978)-

BORREGO MOUNTAIN (1968)

-1 ih

?L i.

i !

!I 3 !

I

.......... ~.-

u, 18 t.-

6 I,

~

!i r.

d:$

PROGRAM DESCRIPTION

i e

AVAILABLE RECORDED EARTHQUAKE DATA AT THE DIABLO CANYON PLANT SITE WILL BE UTILIZED TO ASSIST IN CALIBRATING THE LOW AMPLITUDE DYNAMIC CHARACTERISTICS OF THE SOIL-STRUC-j TURE DYNAMIC MODEL.

i a

e

.--...,,-..y..

..g.

p-...--

~

,y _

=.-

-.=a:

a 7 '-

d'

.) -

i 1

a:

i

- 1 I

J PROPOSED TASK PLAN r

TASK 1:

ASSEMBLAGE OF THE EXISTING DATA ON SITE SOIL / ROCK 14

[.,

CONFIGURATION AND PROPERTIES.

t TASK 2:

REVIEW OF THE GROUND MOTION STUDY RESULTS AND

.r DEVELOPMENT OF FREE-FIELD INPUT MOTIONS FOR SSI

,I 2

ANALYSES.

TASK 3:

DEVELOPMENT OF 3-0 SOIL-STRUCTURE INTERACTION i

ANALYTICAL MODELS.

1 TASK 4:

SOIL-STRUCTURE INTERACTION ANALYSES AND PARA-METRIC STUDIES.

4l; i!

TASK 5:

CORRELATION OF ANALYTICAL-RESULTS WITH RECORDED i

EARTHQUAKE ACCELER0 GRAMS.

TASK 6:

PREPARATION OF REPORTS.

i i'

i i-

4 ?

I; 5

\\

..___, _ _,... - ~..

.. ~.

.m_

p

-c

--r

.r_

-,gg

-y--

g-,

1--

g g

, ~

..--=-.: -

=

-.:: :. =-a - ;:.---- - --- - - :

l

=... _

=-

'[.

i l',

i !

t :;

I.

.. [

TASK 1:

ASSEMBLAGE OF THE EXISTING DATA ON SITE SOIL / ROCK CONFIG,URATION AND PROPERTIES

~

'l A.

GROUND SURFACE TOPOGRAPHY.

~ '"

B.

FOUNDATION SOIL / ROCK STRATIFICATION, ORIENTATION, AND MATERIAL HOMOGENEITY.

I

-4 C.

GEOPHYSICAL DATA SUCH AS FIELD MEASURED SHEAR AND COMPRESSION WAVE VELOCITIES AND ASSOCIATED STRAINS.

i D.

GEOTECHNICAL DATA SUCH AS DYNAMIC S0IL/ ROCK SHEAR MODULI, POISSON'S RATIOS, DENSITIES AND DAMPING, AND THE VARIATION OF THESE PROPERTIES WITH STRAINS

[,

AND THEIR UNCERTAINTIES.

i-

_e 8

)

r k

I y.

l 2

. -.. _ _. _ _ ~

e

,4

=:

=..

.. -.... ~

= _ - -

i

j,.

i; 7

1

-}

j s TASK 2

REVIEW OF THE GROUND MOTION STUDY RESULTS AND e

~l DEVELOPMENT OF FREE-FIELD INPUT MOTIONS ~FOR SSI l

ANALYSIS.

-t 3

A.

SITE-SPECIFIC FREE-FIELD GROUND RESPONSE SPECTRA AND THE LOCATION OF THE MOTION DEFINITION.

B.

ENSEMBLE OF REAL AND/OR SYNTHETIC GROUND MOTION TIME HISTORIES ASSOCIATED WITil THE SITE-SPECIFIC SPECTRA.

C.

FREE-FIELD SEISMIC WAVE INCIDENCE CHARACTERISTICS (INCIDENCE ANGLE AND WAVE COMPOSITIONS) AND THEIR RELATIONSHIP WITH SEISMIC SOURCE LOCATIONL 4

f i

• f5 9

P l

'4

-.~e-~<---

"~ ~

• T**'"'**""~~~

~~~~~~

_c -

_., :_ ; _. =...... _

l

.., =

.- -. - ~ - - - -

---

- - - - - --- '-- --- ~ - - - - - - ' - --

1 1

' i

1 1.

I

,.i i.

TASK 3:

DEVELOPMENT OF 3-D SOIL-STRUCTURE INTERACTION ANALYTICAL MODELS

.}-

e.

l, A.

REVIEW THE EXISTING POWER BLOCK STRUCTURAL MODELS AND SELECT / DEVELOP APPROPRIATE 3-D

'l STRUCTURAL DYNAMIC MODELS TO BE USED FOR SSI ANALYSES.

l B.

DEVELOP 3-D FOUNDATION MODEL USING BOTH THE FINITE ELEMENT APPROACH (E.G., SASSI COMPUTER CODE) AND THE HALF-SPACE APPROACH (E.G., CLASSI COMPUTER CODE).

1 i

5 i

d i

i

=+p-m.--

--4

_w,..

w,-%,.m.e

~,

8 e

m e

-..= a

. j,

. ~. _.....

....-a.-....

~

a 5

"CLASSI" METHODOLOGY t,

t t

i X.

)XI 1

Free-field motion Foundation input motion b

i ImpedanCSS S$l i

e Structural model l

l l

8 5

t

+

f 6

9

"**'*W

.e w e+.w

• e im em m.m a*-

--e

%.s**eeee.>=..me,*ai

~ ~. * *.

.-~~.,,.J.~

e-

1. ^~

~*****~~'*#

• ""*'***'**d*

f

^ "".*~.'..:.

g..-

- 6' i

)

I 1_

g.

?

4 e

4 l'

h em y

IW.

w 1

i.

WBhv s=_

E l

E E. i E.

i

.g y

1 t

a o

e.

C O

m a

m a

6 m

i s

M M

u

• =

C

.9

' k O

e o

A C

J a

6 6

g f

o i

r A

h sw h

O O

,' r'

,m m

es j

p-aE E

m 6

2 6

e a W

,i e

2.a 2

i V

se en ar iJ i

=

m C

,3 m,

i 1

E l

.e

.S.O l

a==

8 w

\\

MM w

l i

+

m.

e% m eme e n.n w

• e-e-+* =r g me,m,

--=we.-

.=%---.---

a-

-u - -

g_

.g_

..-...-.x.

.... -.:.. 2..:-.-.......

3...,-.

~.

}

r*

o.

/

TASK 4:

SOIL-STRUCTURE INTERACTION ANALYSES AND I.

PARAMETRIC STUDIES.

1

.I 2 A.

BENCHMARK SOLUTIONS WILL BE PERFORMED USING BOTH THE FINITE ELEMENT APPROACH AND THE HALF-SPACE APPROACH, AND RESULTS EXAMINED AND RECONCILED.

i B.

SSI ANALYSES WILL BE PERFORMED CONSIDERING ALL l

COMPONENTS OF FREE-FIELD MOTION SIMULTANEOUSLY.

C.

PARAMETRIC STUDIES WILL BE PERFORMED CONSIDERING VARIATIONS OF INPUT MOTION PARAMETERS, VARIATION OF SOIL AND STRUCTURE PROPERTIES.

I t

l

=Aw

.s, e

.w. e. g.,% e.

g.

~.,pg,.

,y,,,,%,.y,,,

^

,.'1ll :.:u... '.-..l..I~ : ~Y ~C~

~.

l.-. -.A.. ~ L -

a c

I i-t

- i.

7..

.t i

TASK 5:

CORRELATION OF ANALYTICAL RESULTS WITH o

l RECORDED EARTHQUAKE DATA

^

r

' l' A.

PERFORM DATA ANALYSES OF AVAILABLE RECORDED I'

EARTHQUAKE ACCELEROGRAMS AT THE SITE AND IN i

THE PLANT STRUCTURES TO OBTAIN TRANSFER FUNCTIONS.

B.

CORRELATE ANALYTICAL RESULTS WITH RESULTS=0BTAINED FROM RECORDED DATA TO CHECK (1) THE SSI EFFECT;-

(2) THE VALIDITY OF ANALYTICAL TECHNIQUES FOR' LOW AMPLITUDE RESPONSES; (3) LOW AMPLITUDE DYNAMIC CHARACTERISTICS OF THE SSI SYSTEM.

k i

e 4

9 1

6 b

a

-._,._. ~ __._

. _t.

L -

L..

.f 9

iI

..g, t*

i,t i/

RECENT EARTHQUAKES FOR WHICH RECORDED DATA ARE C

AVAILABLE AT THE DIABLO CANYON SITE.

i j [

1.

POINT SAL EARTHQUAKE OF MAY 28, 1980

,j, (M

• 4*0)

L Y!

Ji 2.

COALINGA EARTHQUAKE OF MAY 2, 1983 f

l.

(M

= 6.5) g i

3.

SANTA MARIA 0FFSHORE EARTHQUAKE OF

[

4.3) t JUNE 20, 1984 (M

=

g i

i t

ii r

d j

6

• 4 r

I 4

I 4

6

~-<~T

~

e s.~.\\*me,m m,em y.eds m&,... *

.,,w,,y,

.u, e.d"*"

s

.,i

,,.,_,m.

js l

500 kV I

SWITCHYARD

/\\

~\\

\\

\\

DIABLO f'

CREEK PLANT BOUPOARY

/

, ~ '

l

/l

/

A

+- PLANT 230kV 7

gg,

.i SWITCHYARD i

~

/2 g

RESERVOIR 5 g i:.

l,

'g 102S ' i.;

h i

POWER CONSTRUCTION

.t ANT-WAREHQUSE s

DIABLO o

-9~

. ~..

j i COVE

/

s'*

3 METEOROLOGICAL i

i f

k..

fI.

TOWER NO. I 5-4 3

e E

6 lt4TAKE.. l?-

'~

r-z.

1

, BREAKWATER w%%%g PACIFIC OCEAN-l; t.

ii I FIGURE 5 t

t

'i SUPPLEMENTAL SEISMIC INSTRUMENTATION IN FREE FIELD p

DIABLO CANYON POWER PLANT l.

[j 1

.i

.ih j j-. ' '

i-k r,- - - -r :-

~r----~ ~-

_,..,L..:...

f.-

.w.

~=.x==

]

j

.?

' l. :

> < w Ii i

!n;

.3 i4 y:

..t. ;

1. }'.j Tape Dock rusmbers shown tNo: Q j

Fl' SECTION C Chanel I on each dock is wrtical 12-2 F*

3

,,,n n.,3,,,,,,,

2

[2 l-

ch. t, r,

H ch. 2, oa q

ch. 3,270*

f, j

3

'-* i ch. i, r,

ch.2, iso.

\\ 2-3 2

ch. 3, e 4,

fPt. ANT NORTH SECTlON 3 I

b 4

i 5 )I

~

',i

!4 l

SECTION A L24 4-3 SECTION A 3

CH.1 & 2, 7

e l

l l [

2 k

I I 15-1 I4 4

24 w

2 CH. 3 VERT.

2-1 UNIT I UNIT 2

• t 4

l 1

~ **

......--#.p<

y,,,,_,.,..

'E

..--_,_7__..._._;.__

7..

i 1

}.

ci i

!i.

4 i

k*

a-4 4

) i_ i i

i PLANT NORTH w

y l

l

%7

. (W

_4 4

,I l,

I, I

\\

_I i

_ 4

_I s

r f _4~I

__t 3-1 m i.

UNIT 2 l

y 3

s x

\\

l}3-3_ f

~

\\ Cgg N

I UNIT I s

l

\\

EL.100' 4

3

%\\

\\'\\

EL.100 2

3-4

\\

s

-s rs r-

% %8 % % g s

FIGURE 3 SUPPLEMENTAL SEISMIC INSTRUMENTATION AUXILIARY BUILDING DIABLO CANYON UNITS I & 2 O

I i

-~~---.:

w,,

.,,.-y,..

_---,p..

-_y.-,,,,,_,g;

- - - - - - +

1.'

'l c - *=

st h $4 1l i ^*

.I~

ii l t.

a h

,T 1

?:.'-

1--

I l

Wtw Dock rumbers shown Hws:Q,amespt Q Ch. 3A Is on DC 4.3, Ch. E is en DC 4.4 I

,/

/

1. s%

g p-l s

f *, * *T*

's,,

1. p*

i, s'%

g i

.43,4 s

T

[ b, 5

l n.m,.,T' ~,,

,,3=

5 e

N 0,,'

,=== -

, s,,

~

c

. 2

~

4a,

,N,,:

s q%'

i#*'~,,.yl* o k g 2 Nd 3 5-2 e o e FIGURE 4 SUPPLEMENTAL SEISMIC INSTRUMENTATION TURBINE BUILDING DIABLO CANYON UNITS I & 2 y-_.# _--,_--m,e- --w...wy-w m ,,,v.,w- .,._--,,_c.--_ ep%-g -w-,w,y e .---m.- .w.g--wm. ,a.-----9 w-g--n-w

_ u --- .u_. 3 l " ~~~~~ ~ ~ ~ - ~ ~ ~ - ^ ~ ~ ~ - ~ ~~ ~~~ ~~~~~ ,i 1 i)

i

~! ! EARTH 90AKE OF PAY 2,1983 TMPUT uof f T S 4i i .} iig E E . I, u ...ill.: 4 f_ 4 5 ih !i

• H N&witP q pfg

@J / U hygw i ,t .g, g. t- [. ?!MC IN SECOMO I ORIGINAL TIMC HISTDRT RT NSDE No. 23 ,5 t 8... 1 E i E ,. < a.....,, i...... x > i l a 3 ) ,i MfNYVTtfy 't V'l}' f l WQ W l f . -i } - 3... t TIMC IN SECONO ORIGINAL ?!MC MISTORT RT NODE No. 2u.1 i ~.,,.,..... ,-~#

-O ...._ - - c - - - ~ ~ " - I e g' +7 e 4 i o ..g. i i 1 .g. i ~ 4 I s. 'i l I" 2 ( i = / l 'l .e 's. e 's.e 'e. e 's. e 't. s 's. e se.s s e.e s's. s s's.e FRituthCT IN CPS SM00TM Tam 4SFER PUNCTION SETNEEN NOCE NOS. 25 #NO 23 80RIGINAL TIME MISTORTI I s.e. .e. E i R. t i I .e. a= w E w .e. E E \\ E w .s. .e.e e.e .e.e so.e se.e se.e so.e .e e.e SMOOTW COMtmENCE FUNCTION SETWEEN NSDE NOS. It ANO 23 s0RIGINAL I!ME MISTORin i i i j j i l 1 ,,g e sw -**+ +* )}}