ML20003H381
| ML20003H381 | |
| Person / Time | |
|---|---|
| Site: | Vallecitos File:GEH Hitachi icon.png |
| Issue date: | 05/01/1981 |
| From: | Bernreuter D LAWRENCE LIVERMORE NATIONAL LABORATORY |
| To: | |
| Shared Package | |
| ML20003H372 | List: |
| References | |
| ISSUANCES-SC, NUDOCS 8105050688 | |
| Download: ML20003H381 (5) | |
Text
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OV UNITED STATES OF AMERICA NUCLEAR REGULATORY COMtilSSION BEFORE THE ATOMIC SAFETY AND LICENSING BOARD In the Matter of
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GENERAL ELECTRIC C0.
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Docket No.r50;7 F (Vallecitos Nuclear Center -
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(Show Caus')
General Electric Test Reactor,
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Operating License No. TR-1)
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NRC STAFF TESTIMONY OF DON L. BERNREUTER Q.1.
Please state your name and present occupation.
A.I.
fly name is Don L. Bernreuter, and I am the leader of engineering geosciences for the Lawrence Livermore National Laboratory (LLL).
Q.2.
Please summarize your educational background and relevant wrk experience.
A.2.
I received my B. A.E. and my M.S. in aeronautical engineering from the Georgia Institute of Technology in 1958 and 1959, respectively.
I also engaged in post graduate studies in mechanical engineering and mathe-matics at North Carolina State University from 1960-62, and st.udied under a NSF Science Facility Fellowship in engineering mechanics at the Douglas Airplane Co., as an assistant professor of mechanical engineering and of engineering mechanics at Louisiana State University, and as an engineer and geoscientist at LLL since 1973, including a 2 year assignment with the NRC i
Staff with the Site Analysis Branch, what is now tne Geosciences Branch, as a staff seismologist. Since 1968, I have been involved in the study of strong ground motion from explosions and earthquakes.
For the last 5 years 8105050688
. I have been extensively involved in the probability assessment of the safety of nuclear power plants and other critical facilities, and have led a number of projects for the NRC.
Q.3.
Describe the scope of your participation in the review of the GETR for this proceeding.
A.3.
I directed the LLL review effort, which utilized the services of the TERA Corporation.
The TERA review was led by Lawrence Wight.
The LLL/ TERA review included a review and evaluation of GE's submittals to the NRC prepared by EDAC and JBA regarding the probability of surface rupture beneath the GET.", and also prepared an independent assessment of the probability of such rupture.
I personally directed and integrated the overall effort, reviewed and evaluated both the GE consultants' submittals and the independent TERA analysis, and made the recomrendations to the NRC which appear in Appendix F of the Staff's May 23, 1980 SER.
I concluded that the probability of faulting beneath the GETR is very low, and the use of a mean plus one standard deviation value of one meter for net offset beneath the facility can be considered conservative.
TERA's analysis, which I agree with, shows that on the main Verona fault zone, the probability of the occurrence of a one-meter offset is
-5 about 5 x 10 per year, which is reduced by a factor of about 6 x 10-2 per year for an estimate that this offset will occur beneath the reactor.
This probability is further reduced by a factor which accounts for the degree of belief that in 128,000 years, no observable surface rupture has occurred in the trench between the shears on either side of the reactor.
. 1 Reasonable changes in the magnitude of 'the maximun credible earthquake factored into our analysis (i.e.
.5 M) and the strain rate ( 30%) intro-duces a factor of only 2 to 3 change in :the probability value.
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Don L. Bernreuter Lawrence thermore National Laboratory Leader, Engineering Geosciences 1975 - Present - Since returning from a two year assignment at NRC, I have played a key role on a number of HRC projects.
I am currently directing several major programs for NRC.
I am Project Manager for Project II -
Seismic Input - for the Seismic Safety Margins Research Program.
In addition, I am directing the effort defining the seismic hazard for all commercial plutonium facilities for NRC and for similar facilities for DDE, as well as directing the project defining the seismic hazard for the nuclear power plants under review as part of URC's Systemitic Evaluation Program.
I am also the U.5, representative to the CSNI Expert Group on Reference Ground Motiens.
In the past I directed a project for NRC/OSD Assessing the Current NRC Seismic Methodology..I also developed a repcrt which provides NRC a better technical basis to develop the design spectra for the Diablo Canyon, site.
1973 - 1975 - On the staff of the Site Analysis Branch, Division of Technical
" Review, U.S. Nuclear Regulatory Commission.
At NRC responsible for evaluating both the seismic design basis and the foundation engineering aspects of several proposed sites.
Played a major role in the writing of the Standard Review plan (Sections 2.5.1, 2.5.2, 2.5.4, and 2.5.5) for the Site Analysis Branch and coordinated the overlapping responsibilities of the Site Analysis Branch and the Structural Engineering Branch.
Performed several special geotechnical studies, e.g., a study of the subsidence potential at the proposed site of the Allens Creek Nuclear Station due to groundwater withdrawal.
1963 - 1973 - At LLL responsible for providing estimates of proposed underground i
nuclear explosion seismic ground shock design parameters (both surface and sub-j surface) for monitoring hardware.
Developed and improved various computer programs to study the soil-structure-interaction between underground structures and ground motion.
Led the initial efforts to establish the SSE for the LLL site and the earthquake hazard posed to several complex underground nuclear test programs.
Involved in several studies of the structural integrity of various structures to seismic motion and the seismic isolation of sensitive equipment.
l 1950 - 1966 - Assistant Professor of Mechanical Engineering and of Engineering Mechanics at Louisiana State University. Taught a wide variety of courses, both graduate and undergraduate, in fluid mechanics, gas dynamics, solid mechanics, dynamics, and mathematics.
Instructor in both the Mechanical Engineering and Engineering Mechanics Departments at North Carolina State University.
Taught machine design, dynamics of machinery, fluid mechanics, dynamics and strength of materials.
i 1959 - 1950 - Flight Test Engineer at the Douglas Airplane Company.
Compiled statistical analysis of low altitude free-air turbulence.
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- .3F Science Facility Stanford University Engineering Mechanics 1955-19fi Fellowship Post Graduate Studies North Carolina State Mechanical Engineering /
1950-195:
University Mathematics
!G Georgia Institute of Aeronautical Engineering (959 Technology B;E Georgia Institute of Aeronautical Engineering
.1953 Technology 4
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