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Experimental pressure and sealing plug as part of the European DOPAS project – deep geological repository plug demonstration

Published online by Cambridge University Press:  02 January 2018

Irena Hanusová ,
Jiří Svoboda  and
Petr Večerník
Irena Hanusová*
Affiliation:
SÚRAO, Dlážděná 6, 110 00 Prague 1, Czech Republic
Jiří Svoboda
Affiliation:
Centre of Experimental Geotechnics, Czech Technical University in Prague, Thákurova 7, Prague, Czech Republic
Petr Večerník
Affiliation:
ÚJV Řež, a. s., Hlavní 130, 250 68 Husinec, Řež, Czech Republic
*
*E-mail: hanusova@surao.cz
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Abstract

The objective of the DOPAS international project is to design a sealing-plug system for deep geological repository (DGR) use, to provide detailed plans for the design of such plugs, to test the characteristics of the materials to be used and the construction technology and to install four experimental in situ plugs. The Czech experimental pressure and sealing-plug (EPSP) experiment is being conducted in a rock environment consisting of granitoids at the Josef Regional Underground Research Centre. The concept of the experiment is based primarily on the use of materials and technology available in the Czech Republic and the principal aim is to demonstrate the technical viability and functioning of a pressure-resistant plug located in a future DGR. The completion of the EPSP experiment will contribute towards both the demonstration of how sealing-plug systems behave under real underground conditions and the long-term safety of a future DGR in the Czech Republic.

Keywords

Deep Geological Repositoryplugssealing systembentonite pelletslow-pH concretelaboratory physical models
Type
Research Article
Information
Clay Minerals , Volume 51 , Issue 4 , September 2016 , pp. 589 - 601
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2016

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Footnotes

†

This work was originally presented during the session ‘Bentonites linking clay science with technology’, part of the Euroclay 2015 conference held in July 2015 in Edinburgh, UK.

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