The DRAGON project is aimed at achieving resource efficiency in tunnelling and other underground construction processes by turning the excavation material into a valuable resource for other processes and sectors such as the cement, steel, ceramic or glass industries.
The project sets out to solve this challenge by developing a prototype system for the automated online analysis, separation and recycling of excavated materials in underground construction sites.

The entire chain from characterisation to classification and processing of the excavated material will be conducted completely underground.
The use of excavation material for various purposes is designed to save natural primary resources while also providing a high value.
Another important objective is to assess the resource efficiency of different usage scenarios on a quantifiable basis and thus provide a sound basis for decision making by authorities.

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