This training session kicked off with an introduction to sustainability concepts and an overview of the main environmental impacts of tunnel construction. Both qualitative and quantitative impact assessment methods were presented in detail.
Environmental issues with regard to excavated materials are becoming an increasingly important aspect of tunnelling projects and this was demonstrated through a presentation of current European and national policies. The end-user requirements of minerals were also discussed and the industrial classification of minerals was presented, along with the chemical and physical characterization of excavated material.
The training session rounded off with a look at maintenance plans for tunnel structures and equipment. An open discussion enabled the participants to put their questions to the lecturers, who were eager to share their knowledge and views.