Skip to main content Accessibility help
×
Home

An overview of near-field evolution research in support of the UK geological disposal programme

  • T. M. Beattie (a1) and S. J. Williams (a1)

Abstract

The near field, together with the containment and isolation provided by the geosphere, contributes to the long-term safety provided by a geological disposal facility (GDF) after closure. The different engineered barriers can prevent or limit the release of radionuclides and their migration to the undisturbed host rock or geosphere and are expected to fulfil their post-closure safety functions for many thousands to hundreds of thousands of years. They will continue to contribute to containment after their eventual degradation when there would no longer be confidence that they would continue to fulfil all of their safety functions in their totality. By that time, significant radioactive decay will have occurred, substantially reducing the hazard associated with the wastes. Therefore, demonstration of long-term safety requires an understanding of the evolution of the engineered barriers and the consequences for the generic safety functions that the different barriers provide. This paper provides an overview of the research of the Nuclear Decommissioning Authority Radioactive Waste Management Directorate into the evolution of the near field of a GDF.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      An overview of near-field evolution research in support of the UK geological disposal programme
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      An overview of near-field evolution research in support of the UK geological disposal programme
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      An overview of near-field evolution research in support of the UK geological disposal programme
      Available formats
      ×

Copyright

© [2012] The Mineralogical Society of Great Britain and Ireland. This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY) licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Corresponding author

References

Hide All
Arcos, D., Hernán, P., de la Cruz, B., Herbert, H.-J., Savage, D., Smart, N.R., Villar, M.V. and Van Loon L.R. (2005) NF-PRO: Understanding and physical and numerical modelling of the key processes in the near field and their coupling for different host rocks and repository strategies, EDZ development and evolution. RTDC-2 Synthesis report, EC integrated project NF-PRO Deliverable D-No:2.6.4.
Atkinson, A., Everitt, N.M. and Guppy, R.M. (1988) Evolution of pH in a radwaste repository: Internal reactions between concrete constituents. UKAEA Report AERE-R12939.
Baldwin, T.D., Chapman, N.A. and Neall, F.B. (2008) Geological disposal options for high level waste and spent fuel. Galson Sciences Report to NDA RWMD.
Carlsson, T. and Muurinen, A. (2008) A Practical and Theoretical Basis for Performing Redox-measurements in compacted Bentonite - A Literature Survey. Posiva Working Report 2008–51. Posiva, Eurajoki, Finland.
Fernández, A.M. Baeyens, B., Bradbury, M. and Rivas, P. (2004) Analysis of the porewater chemical composition of a Spanish compacted bentonite used in an engineered barrier. Physics and Chemistry of the Earth, 29, 105119.
Hicks, T.W., Baldwin, T.D., Hooker, P.J., Richardson, P.J., Chapman, N.A., McKinley, I.G. and Neall, F.B. (2008) Concepts for the Geological Disposal of Intermediate-level Radioactive Waste. Galson Sciences Report 0736-1. to NDA RWMD.
Humphreys, P.N., West, J.M. and Metcalfe, R. (2009) Microbial Effects on Repository Performance. Quintessa report QRS-1378Q-1, Version 2.0.
Nagra (2008) Effects of post-disposal gas generation in a repository for low- and intermediate-level waste sited in the Opalinus clay of Northern Switzerland. Nagra Report TR 08–07. Nagra, Wettingen, Switzerland.
Nagra (2009) The Nagra Research, Development and Demonstration (RD&D) Plan for the Disposal of Radioactive Waste in Switzerland. Nagra Technical Report 09–06. Nagra, Wettingen, Switzerland.
Nirex (2005) The viability of a phased geological repository concept for the long-term management of the UK’s radioactive waste. Nirex report N/122. Nirex, Harwell, Didcot, Oxfordshire, UK.
Nuclear Decommissioning Authority (2010) Near-field Evolution Status Report. NDA Report NDA/ RWMD/033.
Posiva Oy (2010) Nuclear Waste Management at Olkiluoto and Loviisa Power Plants: Review of Current Status and Future Plans for 20102012. Posiva report TKS-2009. Posiva Oy, Eurajoki, Finlan.
Small, J.S. and Thompson, O.R.(2010) Development of a spatial and temporal evolution of pH in cementitious backfill of a geological repository. Nexia Solutions Report (07) 8869, Issue 3.
Stührenberg, D. and Heusermann, S. (2007) Laboratory investigation on backfill and rock salt within the BAMBUS II Project. Federal Institute for Geosciences and Natural Resources (BGR), Germany.
SKB (1999) Thermal Dimensioning of the Deep Repository. SKB Report TR-0309. Swedish Nuclear Fuel and Waste Management Company, Stockholm, Sweden.
Swift, B.T., Bamforth, P.B., Hoch, A.R., Jackson, C.P., Roberts D.A. and Baston, G.M.N. (2010) Cracking, Flow and Chemistry in NRVB. Serco report SERCO/ TAS/000505/002, Issue 2.
Wilson, J., Savage, D., Bond, A., Watson, S., Pusch, R. and Bennett, D. (2011) Bentonite: A review of key properties, processes and issues for consideration in the UK context. Quintessa report QRS-1378ZG-1 Version 1.1.
Worth, S.V. and Faulkner, A. (2009) ILW repository thermal analysis using ABAQUS. Pöyry ABS Consulting, PE/200579/001, Revision 3.

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed