METHOD OF COMBINED DEVELOPMENT OF ORE Russian patent published in 2009 - IPC E21B43/28 E21C41/00 

FIELD: mining.

SUBSTANCE: method refers to mining and is intended for underground leaching of metals out of ore and anthropogenic mineral formations. The method of combined development of ore consists in extraction of rich ore and in leaching metals from the rest part of ore at site of its bedding. Extraction of rich ore is executed according to procedure chamber-massif. Primary chambers are formed with geological parametres less, than these of massifs. Backfilling of chambers is performed with hardening mixture, while space formed at successive extraction of massifs is filled with disintegrated ("dry") filling consisting of sorting tails and/or of tails of concentrating of rich ore and mine-run material produced at driving of preparing and breakoff working. The rest of mine-run material is exploded; while leaching of metals out of mine-run material and backfilling materials is performed in two stages: with mine water saturated with air oxygen and with supply of thionic bacteria strains into them at the first stage and with supply of solutions of basic activated leaching reagents at the second stage.

EFFECT: upgraded efficiency of process.