Filling-up mine spaces of 'Block 1' and 'Block 2' in the Uranium mine Zirovski vrh from the surface and remediation of a damaged cementation of well for filling-up mine spaces

摘要

Due to the closure of uranium mine Zirovski vrh maintenance of mining spaces have been abandoned. Abandoning of maintenance consequently brought to abetment of supporting measures which resulted in widening of the destruction processes around excavated areas. In the case of uranium mine Zirovski vrh radiological contamination of the area above excavated spaces of blocks 1 and 2 could appear through cracks. Idea about filling up isolated places with the filling concrete which could be poured into the mine through drills, made from the surface, has emerged. For filling up excavated spaces in blocks 1 and 2 of uranium mine Zirovski vrh 11 wells have been made for integrating filling concrete in open mine spaces. During the fill-up of mine spaces with the filling concrete in block 2 an increased inflow of water from upper layers into the mine was discovered. The article presents realization of wells for filling up excavated areas, the process of filling up itself and the procedure of remediation of a damaged part of the well's cementation.