Q-system advance for sprayed lining

In part two of this article, M.Sc. Eystein Grimstad, senior engineering geologist, Dr Rajinder Bhasin, senior engineering geologist, M.Sc. Anette Wold Hagen, project engineering geologist, Dr Amir Kaynia, senior engineer, from the Norwegian Geotechnical Institute and Kalpana Kankes, Technical University of Stockholm, conclude the update of the Q-system for lining design