The EVEREST project: sensitivity analysis of geological disposal systems

Research output: Contribution to journalArticlepeer-review

Authors

  • Jan Marivoet
  • Isabelle Wemaere
  • Pierre Escalier des Orres
  • Patrick Baudoin
  • Catherine Certes
  • André Levassor
  • Jan Prij
  • Karl-Heinz Martens
  • Klaus-Jürgen Röhlig
  • CEA Cadarache - Commissariat à l'Énergie Atomique
  • ECN - Energieonderzoek Centrum Nederland
  • GRS - Gesellschaft für Anlagen- und Reaktorsicherheid gGmbH

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Abstract

The main objective of the EVEREST project is the evaluation of the sensitivity of the radiological consequences associated with the geological disposal of radioactive waste to the different elements in the performance assessment. Three types of geological host formations are considered: clay, granite and salt. The sensitivity studies, that have been carried out, can be partioned into three categories according the type of uncertainty taken into account: uncertainty in the model parameters, uncertainty in the conceptual models and uncertainty in the considered scenarios. Deterministic as well as stochastic calculational approaches have been applied for the sensivity analysis. For the analysis of the sensivity to parameter values, the reference technique, which has been applied in many evaluations, is stochastic and consists of a Monte Carlo simulation followed by a linear regression. For the analysis of conceptual model uncertainty, deterministic and stochastic approaches have been used. For the analysis of uncertainty in the considered scenarios, mainly deterministic approaches have been applied.

Details

Original languageEnglish
Pages (from-to)79-90
Number of pages12
JournalReliability Engineering and System Safety
Volume57
Issue number1
DOIs
Publication statusPublished - Jul 1997

Keywords

  • Performance evaluation, Underground disposal, Clay, Sensitivity analysis

ID: 3470512