16.4.2013 12.51
Joint development of plugging and sealing technology for geological disposal facilities – The DOPAS Project
Launch of European-wide cooperation on plugging and sealing technology
Fourteen
nuclear waste management organisations and research institutes from
eight European countries are participating in a technology development
project for testing plugging and sealing systems for geological disposal
facilities for radioactive waste - the DOPAS project ("Full-Scale
Demonstration Of Plugs And Seals"). The project is built around a set of
full-scale underground demonstrations, laboratory experiments, and
performance assessment studies.
The project budget
is €15.7 million, and is jointly funded by the Euratom's Seventh
Framework Programme (€8.7 million) and European nuclear waste management
organisations. The project is running in the period September 2012 –
August 2016, and is being coordinated by Posiva Oy, a nuclear waste
management company in Finland.
The project will compile the
design basis of plugs and seals, develop new technology for plug and
seal materials and for the assembly and construction of plug and seal
systems, carry out full or partial design of the systems, and perform
five full-scale plug and seal tests. The tests will be carried out in
research facilities representative of varying geological environments in
Finland, France, the Czech Republic, Sweden and Germany. In addition,
the performance of the plugs and seals will be assessed and compared to
design requirements. A further task is to inform the wider radioactive
waste management community about the work and results of DOPAS, via
attendance at international scientific meetings and project
publications.
In 2016, the project team will
organise an international seminar on plugging and sealing technology for
geological disposal of radioactive waste.
The impetus to the
cooperation comes from the Strategic Research Agenda of the Implementing
Geological Disposal of Radioactive Waste - Technology Platform
(IGD-TP).

As example Posiva's Deposition tunnel plug experiment in ONKALO underground rock characterization facility in Olkiluoto, Finland

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