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A streamlined approach for the seismic hazard assessment of a new nuclear power plant in the UK

  • Guillermo Aldama-Bustos
  • Iain J. Tromans
  • Fleur Strasser
  • Graham Garrard
  • Guy Green
  • Liz Rivers
  • John Douglas
  • Roger M. W. Musson
  • Simon Hunt
  • Angeliki Lessi-Cheimariou
  • Manuela Daví
  • Colin Robertson
Case Study Reports

Abstract

This article presents a streamlined approach to seismic hazard assessment aimed at providing regulatory assurance, whilst acknowledging commercial and program constraints associated with the development of safety–critical facilities. The approach was developed based on international best practice and followed the spirit of the Senior Seismic Hazard Analysis Committee (SSHAC) Level 2 requirements, while incorporating the key features of the SSHAC Level 3 process aimed at achieving regulatory assurance, but with a more flexible implementation. It has also benefited from experience gained by others regarding the implementation of the SSHAC process in projects in the USA, Switzerland and South Africa. The approach has been successfully applied as part of the Safety Case for the new-build nuclear power plant at Hinkley Point, UK. The proposed approach can be considered as a cost-effective solution for the seismic hazard evaluation of safety-significant facilities where a high level of regulatory assurance is required.

Keywords

PSHA Safety–critical facilities SSHAC Regulatory assurance UK 

Abbreviations

CBR

Centre, body and range

CEUS

Central and eastern United States

CH2M

CH2M Hill

EDF

Électricité de France

GEM

Global Earthquake Model

GMM

Ground-motion model

HID

Hazard input document

IAEA

International Atomic Energy Agency

NNB GenCo

Nuclear New Build Generation Company (subsidiary of EDF Energy)

NPP

Nuclear power plant

ONR

Office for Nuclear Regulation

PSHA

Probabilistic seismic hazard analysis

PMT

Project management team

PPRP

Participatory peer review panel

PRT

Peer review team

SAP

Safety assessment principles

SE

Subject Expert

SSC

Seismic source characterization

SSM

Seismic source model

SHWP

Seismic Hazard Working Party

SRID

Site response input document

SSHAC

Senior Seismic Hazard Analysis Committee

TAG

Technical assessment guides

TDI

Technically defensible interpretations

TDT

Technical Delivery Team

TI

Technical Integrator

USNRC

US Nuclear Regulatory Commission

Notes

Acknowledgements

The authors would like to thank the PRT, Hilmar Bungum and Martin Koller, for their valuable comments and discussions during the development of the project, which helped to streamline the approach originally proposed at the beginning of the study. Their experience on previous SSHAC Levels 3 and 4 studies was invaluable. The authors would like to thank EDF-NNB GenCo for agreeing to the publication of this article. Finally, we thank three anonymous reviewers for their positive and constructive comments on an earlier version of this article.

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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  • Guillermo Aldama-Bustos
    • 1
  • Iain J. Tromans
    • 1
  • Fleur Strasser
    • 2
  • Graham Garrard
    • 3
  • Guy Green
    • 3
  • Liz Rivers
    • 3
  • John Douglas
    • 4
  • Roger M. W. Musson
    • 5
  • Simon Hunt
    • 3
  • Angeliki Lessi-Cheimariou
    • 1
  • Manuela Daví
    • 1
  • Colin Robertson
    • 6
  1. 1.Jacobs, Elms HouseLondonUK
  2. 2.Independent consultant / Jacobs, Elms HouseLondonUK
  3. 3.Jacobs, Burderop ParkSwindonUK
  4. 4.University of StrathclydeGlasgowUK
  5. 5.University of Edinburgh, School of GeosciencesEdinburghUK
  6. 6.NNB GenCoBristolUK

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