You can find more information (contact with scientific researcher) at the University of Science and Technology, Faculty of Mining and Geoengineering, Department of Mining Egineering and Work Safety. https://www.wgig.edu.pl
I search for any information on the newest technologies and methods to block the water upwelling in the mine tunnels at high depths (maybe more than 100 m) especially in spiral mines. Ore type is Pb-Zn.