Research Project

Digitally optimized sectioning and packing of activated concrete structures into Konrad-Containers when dismantling nuclear facilities

In the DABKO research project, the IIB is developing innovative processes for the dismantling of nuclear power plants together with partners from the TU Darmstadt and industry. For this purpose, scientific digital methods such as Building Information Modelling (BIM) are applied and simulations with the game engine Unity are carried out.

The decision to shut down all nuclear power plants in the Federal Republic of Germany is accompanied by the necessity to dismantle the decommissioned nuclear power plants properly. Since activated components are to be expected, especially in the area around the reactor, special conditions must be observed for the dismantling and final disposal of radioactive waste with negligible heat generation. In order to store this waste in the “Schacht Konrad” repository near Salzgitter, Germany, it is packed in containers. These filled containers have to fulfil specified boundary conditions. The storage of the containers is associated with high costs; moreover, there is only limited space available in the final repository.

In order to make maximum use of the filling volume of a container, the dismantling and packaging is to be optimised and simulated in advance with the help of digital methods such as Building Information Modelling (BIM) and the use of game engines. This procedure will be tested using the example of a biological shield. This is first created as a BIM model and then enriched with information regarding the material and the specific activity of the isotopes. The BIM model is then imported into a game engine, in which it is decomposed in an algorithm-based process. This algorithm has to be optimised taking into account the boundary conditions and with regard to maximising the storage capacity of the containers.

In addition to the Institute of Numerical Methods and Informatics in Civil Engineering, the Institute for Nuclear Physics at the TU Darmstadt as well as the practice partners AFRY and TÜV SÜD ET are involved in DABKO.

Institute of Numerical Methods and Informatics in Civil Engineering

The Institute of Numerical Methods and Informatics in Civil Engineering is concerned in research and teaching with computer-based methods for modelling and simulation of engineering tasks. This includes the conception, development and application of modern procedures and methods of information and communication technology for the planning, construction and use of buildings and their interactions with the environment.

Institute for Nuclear Physics

The Institute for Nuclear Physics conducts research and teaches in the fields of nuclear structure physics, nuclear astrophysics, relativistic heavy ion physics, plasma and astroparticle physics, accelerator physics and related fields in experimental and theoretical working groups.


AFRY's mission statement is: “We help our clients make progress in sustainability and digitalisation. Globally, we are dedicated experts in infrastructure, industry and energy, working to create sustainable solutions for future generations.” With this in mind, AFRY aims to exploit all possibilities to reduce space consumption in the Konrad shaft and to package the radioactive waste as efficiently as possible from an environmental point of view.


The TÜV SÜD ET is an independent, neutral service provider that mainly advises the Baden-Württemberg Ministry for the Environment, Climate and Energy Management in the field of nuclear technology and carries out assessments and tests on its behalf. The optimisation of dismantling activities does not bring any economic advantage for TÜV SÜD ET. However, TÜV SÜD ET is fundamentally interested in offering added value to its clients and society.

  Name Contact
Benedikt Kandler M.Sc.
+49 6151 16-21820
Pascal Mosler M.Sc.
+49 6151 16-21373

The DABKO project is funded by the Federal Ministry of Education and Research (BMBF) as part of the funding programme “Research for the Dismantling of Nuclear Facilities” (FORKA).

Funding reference numbers: 15S9436B
Duration: 01.10.2022 – 30.09.2025