Method of reinforcing and/or sealing rock mass, especially of a weakened deposit shield in a salt mine.

摘要

1. The method of reinforcing and/or sealing rock mass is designed especially for a weakened deposit shield in a salt mine. It consists in drilling multiple injection openings from a geological cavern or mining heading. The openings are drilled at different angles and azimuths with respect to cavern/heading axes and protected with anti-eruption heads, used periodically to pump injected fluid into a selected zone. Characterized in that: The directional openings (DI, DII) are drilled. Their length is determined depending on the location of the zone to be sealed within the sealed layer, limited with a surface close to spherical.