About the Lucoex Project

The overall objective of the four year LUCOEX project is to demonstrate the technical feasibility in situ for safe and reliable construction, manufacturing, disposal and sealing of repositories for long-lived high-level nuclear waste. The demonstration activities in the project take place in four different underground research laboratories (URL) in Europe, which have been constructed for the specific purpose of developing repository technology under repository-like conditions. The demonstrations include four different geological deposition concepts, which have been developed individually to the present state-of-the-art in national programmes. We are now combining knowledge and practical experiences to develop the demonstration installations and these concepts further in cooperation.

The four addressed repository concepts are:

  • Horizontal disposal of waste packages in Opalinus Clay formation
  • Horizontal disposal of waste packages in Callovo-Oxfordian clay formation
  • Horizontal disposal of waste packages in crystalline hard rock
  • Vertical disposal of waste packages in crystalline hard rock

In order to establish confidence in the technical feasibility of constructing and operating the four repository concepts the following key technical issues are addressed in LUCOEX:

  • Gallery construction
  • Manufacturing and emplacement of buffer around waste canisters
  • Emplacement of waste packages
  • Backfilling and sealing of galleries

The quality and use of obtained technical achievements are enhanced by engaging many more persons in the addressed issues than the ones taking part in the actual project. This is achieved by distributing out results and findings through workshops, conferences, our webpage, scholarships for participating in the project and most importantly through a direct dialogue with interested parties. Because of this we have ensured that all four participating URLs are open for domestic and foreign engineers, decision makers and the general public interested in getting information at the actual sites of the demonstrations.

The Work Packages

Workpackage 1

WP1 is responsible for project management, coordination and integration between the different workpackages.Read More

Workpackage 2

This experiment aims at confirmation of the suitability of repository concept in Opalinus Clay by constructing an emplacement tunnel in Mont Terri HRL, manufacturing bentonite buffer units, manufacturing test equipment for waste and buffer emplacement and demonstrating installation performance. Read More

Workpackage 3

This experiment aims at confirmation of the suitability of repository concept in Callovo-Oxfordian claystone by constructing an emplacement cell in the Bure HRL, constructing different equipments, constructing end steel plug and shield steel plug, showing that the casing may absorb the thermal dilatation, recording data on casing behaviour under actual thermal loading, and showing that the design of the cell head limits thermal gradients on the drift wall. Read More

Workpackage 4

This experiment aims at confirmation of the suitability of horisontal repository concept based on SKB's KBS3-concept by manufacturing full scale buffer components, supercontainer and plug components, performing installation and monitoring the system’s initial behaviour at the Äspö HRL in Sweden. Read More

Workpackage 5

This experiment aims at confirmation of the suitability of of the KBS3 repository concept in crystaline rock by further developing and demonstrating the emplacement of full scale bentonite buffer components in deposition holes, developing quality assurance methods for this and developing problem handling procedures during installation. Installation will be done at the Onkalo respoitory site in Finland. Read More

Workpackage 6

WP6 is responsible for the external communication (newsletters, EC-reporting etc). Read More