| 摘要 |
FIELD: mining.SUBSTANCE: invention relates to the field of mining and can be used in underground mining of potash salts deposits for waterproofing of flooded areas and water-flooded mining openings. The surface of the cut under a concrete bridge is evenly coated with waterproofing expanding material, after which the concrete bridge is erected in the boundaries of the treated walls of the working and the working from the side of water influx on the perimeter is evenly coated with waterproofing material. In the concrete body the jumpers comprise either tubing diaphragm, or tube-hole, as well as control means of tightness of the jumper, and the wall coating of the working with waterproofing material is performed in case of emergency.EFFECT: increasing the tightness of the contact of the jumper and comprising rock due to waterproofing of this contact.3 cl, 1 dwg |
