FIELD: mining.
SUBSTANCE: invention refers to mining, and namely to extraction methods of mineral deposits from ore veins. Drilling of wells located at some distance is performed directly in ore vein. Wells are reamed using thermal fragmentation basically to boundary surfaces between ore vein and environment. Then, in ore vein between thermally reamed wells there drilled is pit for introduction of explosive charge. The latter is blasted in order to destruct the ore between reamed wells. After ore vein section is destructed with guided blast wave, the other well is drilled in ore vein at the specified distance from the previous place of blasting operations and thermally reamed, and the next pit is drilled between them for explosive fragmentation. The process is repeated for as many times as it is required for extraction of the necessary amount of ore from ore vein.
EFFECT: invention allows minimising the ore extraction cost by reducing the ore impoverishment.
12 cl, 2 dwg
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