COMBINED GEOTECHNICAL METHOD OF MINING METAL ORE DEPOSITS Russian patent published in 2009 - IPC E21B43/28 

FIELD: mining.

SUBSTANCE: present invention pertains to mining, particularly to geotechnical methods of mining metals. The combined geotechnical method of mining metal ore deposits involves construction of injection and extraction goaves where the ore body is located, forming a stock pile of ore of the same type, installing a sprinkling system, supplying leaching solutions for sprinkling the stock pile and into injector goaves and outlet of production solutions through a drainage system and raising to the surface through extraction groaves. The production solutions are processed. The processing mother solutions undergo pre-strengthening by a leaching reagent and are returned for leaching. The leaching solutions are supplied through extraction goaves to the place where the ore body lies. The ore stockpiles are sprinkled by solutions raised to the surface through extraction goaves, and the obtained production solutions through the drainage system of the ore stock pile are taken for processing. Protection of underground water and its subsequent reclamation is done through creation of balance weight between volume of production and leaching solutions.

EFFECT: improvement of economic factors and solving arising ecological problems.

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