Development of resource‐efficient tunnelling technologies – Results of the European research project DRAGON

Abstract

A wide range of different minerals is found in materials excavated in tunnels. The DRAGON project therefore has the aim of investigating the requirements of the industries producing products from mineral raw materials and who thus could be interested in raw materials derived from underground construction sites. In parallel to the development of advanced online technologies for the analysis of excavated materials, DRAGON is researching the significant requirements for raw materials used in industrial processes; these include grain size distribution, mineralogical composition, geochemistry as well as water content and water absorption properties.