SKB's Horisonal Deposition in Crystaline Rock at Äspö Hard Rock Laboratory in Sweden

ANDRA Hard Rock Laboratory in Bure, France

Safety Barriers in NAGRAs disposal Concept

Visualization of NAGRAS test set-up(perspective side view, without back-fill / sensors / rock bolts)

The LUCOEX-project is officially closed

The project is officially closed down. All results produced have been made available on the Luceox: Results & Deliverables page which will remain online for a number of years.

The Lucoex Project has been finalized

The four waste management organizations Nagra, Andra, SKB and Posiva came as part of their step-vice development of repository concepts for long-lived radioactive waste together in the LUCOEX project with the common objective to demonstrate the technical feasibility for a safe and reliable disposal of radioactive waste in geological formations.

The demonstration was done by executing four parallel proof-of-concept installations at different underground research laboratories, which all were designed for the specific purpose of hosting these kinds of experiments. Each experiment focused on different concepts and different geological and technical/legal pre-conditions and all experiments were executed with a focus on openness and willingness to share the knowledge gained to support the development of safe and reliable repositories throughout Europe.

In Switzerland, Nagra participated with the FE-experiment installation in the "Mont Terri underground research laboratory". The experiment was a full-scale, multiple heater test in Opalinus Clay which will continue to operate long after the finalization of the Lucoex project.

In the Bure underground research laboratory in France, Andra demonstrated the construction and installation of a complete HLW cell (with dummy canisters) in Callovo-Oxfordian clay with a concept optimized for a possible future retrieval of the waste. The installation will continue to operate as a study of the early behaviour of this type of repository.

In the Äspö Hard Rock Laboratory in Sweden, SKB showed the feasibility of the KBS-3H concept in crystalline rock, which is based on horizontal position of canisters in bored tunnels. The installation will continue to be used as a proof-of-concept and a non-heated evaluation of the early bahaviour of the design.

In Finland, Posiva demonstrated the feasibility of emplacing the buffer components in the KBS-3V concept, which is based on horizontal disposal tunnels with vertical disposal positions in crystalline rock.

All objectives of the Lucoex-project have now been met and each of the four LUCOEX partners have shown that construction of galleries, manufacturing of buffer components, installation and sealing of galleries can be made to meet the initial state, i.e. the situation when no more adjusting measures are assumed to be made and further evolution of the repository components are driven by the repository´s THMC environment and geoscientific events.

In addition lots of experience were gained during the excavation, installation and sealing of the four experiments, as several practical problems were experienced, which had to be solved when they appeared. They were all handled to satisfaction and in the final end we concluded that the solutions provided additional knowledge and significant return of experience into the future development of safe and reliable repositories throughout Europe.

The final component of the LUCOEX project was the dissemination of our findings. This has been done through a) making it possible to visit the experiments at the underground research facilities, b) presenting results and findings in scientific articles and at conferences, c) producing movies from the different experiments, d) hosting conferences and workshops and e) managing an ambitious scholarship programme to give external parties the possibility to participate both in hosted events and on site during the experiments.

In June 2016 SKB hosted the The Lucoex end conference (further information available on the Conference homepage) at which point the project presented our experiences and findings. Based on these results there was an active discussion on how the information can be utilized by other wast management organizations and less developed programs within Europe.

As the end conference was the final public activity within the project we are now officially closed down. All reports and presentations produced during the Lucoex-project have been made available on the Luceox: Results & Deliverables page which will remain online for a number of years. All deliverables are also made available through the homepage).

Recent News / Stuff From Our Blog

01 Aug

Project now closed down

The LUCOEX-project ended with the successfull completion of the LUCEX end conference.



Proof-of-Concepts for four different emplacement concepts with the goal to understand and compare important parameters for the implementation and the long-term safety of the concepts.

Project Coordinator

  • Name: Jan Gugala

  • Address: SKB, Box 250, SE-101 24 Stockholm, Sweden

  • Phone: +46 (0)8-579.387.54

  • Email: