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A Model for Nearfield Performance Assessment in the Presence of a Permeable Engineered Barrier

Published online by Cambridge University Press:  25 February 2011

D. Broc
Affiliation:
CEA.DMT.SEMT. C.E. SACLAY 91191 GIF-SUR-YVETTE CEDEX
M. Lamoureux
Affiliation:
CEA.DMT.SEMT. C.E. SACLAY 91191 GIF-SUR-YVETTE CEDEX
M. Durin
Affiliation:
CEA.DMT.SEMT. C.E. SACLAY 91191 GIF-SUR-YVETTE CEDEX
S. Voinis
Affiliation:
ANDRA.DSPE. BP n° 38 92266 FONTENAY-AUX-ROSES
P. Raimbault
Affiliation:
ANDRA.DSPE. BP n° 38 92266 FONTENAY-AUX-ROSES
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Abstract

One of the options envisaged by ANDRA for some of the engineered barriers in a geological repository in hard rock is the use of a permeable granular material (clay/sand or clay/crushed rock mixtures).

This choice will lead to modification of the flow distribution around the repository borehole and the consequences on the migration behaviour in the near field need to be evaluated.

The aim of this study is to develop a borehole model which describes the release in the borehole from the waste matrix through the engineered barrier. This model can be readily integrated in a near field model of the waste storage area.

Type
Research Article
Copyright
Copyright © Materials Research Society 1992

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References

REFERENCES

[1] What will be the engineered barrier for deep disposal of high level radioactive waste in the future. Plas, F., Jorda, M., Atabek, R., Molinat, J.C., Hoorelbeke, J.M., Bellet, J..Proceeding of ANS meeting. LAS VEGAS 1990.Google Scholar
[2] Etude d'un scenario d~faut de scellement dans un site de stockage en milieu granitique. Broc, D., Durin, M., Olivier, M., Raimbault, P.. International Symposium on Safety Assessment of Radioactive Waste Repositories. PARIS 1989 october 9-13.Google Scholar