Engineered barrier systems (EBS) in the context of the entire safety case : workshop proceedings, Oxford, United Kingdom, 25-27 September 2002

This Report Presents The Outcomes Of A Joint Nea-ec Workshop, Organised In Oxford On 25-27 September 2002 And Hosted By United Kingdom Nirex Limited. The Main Objectives Of The Workshop Were To Provide A Status Report On Engineered Barrier Systems In Various National Radioactive Waste Management Programmes Considering Deep Geological Disposal; To Establish The Value To Member Countries Of A Project On Ebs; And To Define Such A Project’s Scope, Timetable And Modus Operandi. Executive Summary -- 1. Introduction -- 2. Workshop Objectives And Agenda -- 3. Ebs Function, Design, Characterisation And Assessment -- 4. Working Group Sessions -- 5. Workshop Conclusions -- 6. References -- Appendix A: Workshop Agenda -- Appendix B: Papers Presented To The Workshop. Managing Design Requirements For A Repository In Crystalline Rock / Timo Äikas ; Managing Design Requirements Of The French Hllw Programme In Clay Media / Jean-michel Hoorelbeke, Stefan Mayer And Frédéric Plas ; Closure Concept For The Morsleben Llw Repository For Radioactive Waste Design Of Drift Seals In A Former Salt Mine / Ralf Mauke, Jürgen Wollrath And Nina Müller-hoeppe ; Crop, A Project For Comparative Description Of National Concepts For Disposal Of Radioactive Waste / Roland Pusch And Christer Svemar ; The Role Of The Ebs In Demonstrating Post-closure Safety Of The Proposed Yucca Mountain Repository / Robert J. Mackinnon ; Engineered Barriers System Modelling And Performance Assessment In Safir 2 / Xavier Sillen ... [et Al.] ; Ebs Modelling And Performance Assessment From H12: Results Conclusions And Future Priorities / Hiroyuki Umeki ... [et Al.] ; On-going Activities Of The Ec Project Benipa, Current Status, Key Issues And Achievements / Jesús Alonso -- Appendix C: Remit And Composition Of Working Groups ; Working Groups Remit ; Working Groups Composition -- Appendix D: List Of Participants. In Co-operation With The European Commission And Hosted By United Kingdom Nirex Limited. Includes Bibliographical References. A joint NEA-EC workshop entitled "Engineered Barrier Systems (EBS) in the Context of the Entire Safety Case" was organised in Oxford on 25-27 September 2002 and hosted by United Kingdom Nirex Limited. The main objectives of the workshop were to provide a status report on engineered barrier systems in various national radioactive waste management programmes considering deep geological disposal; to establish the value to member countries of a project on EBS; and to define such a project's scope, timetable and modus operandi Preliminaries......Page 1 SUMMARY......Page 4 Acknowledgements......Page 5 CONTENTS......Page 6 1 INTRODUCTION......Page 8 2 WORKSHOP OBJECTIVES AND AGENDA......Page 12 3 EBS FUNCTION DESIGN CHARACTERISATION AND ASSESSMENT......Page 14 4 WORKING GROUP SESSIONS......Page 20 5 WORKSHOP CONCLUSIONS......Page 30 6 REFERENCES......Page 34 Appendix A WORKSHOP AGENDA......Page 36 Appendix B PAPERS PRESENTED TO THE WORKSHOP......Page 40