METHOD FOR DEVELOPMENT OF GRAVEL MINERAL DEPOSITS Russian patent published in 2010 - IPC E21C45/00 

FIELD: mining.

SUBSTANCE: invention is related to mining industry, in particular to development of drowned gravel mineral deposits, also to development of alluvial deposit of noble metals and precious minerals. Method includes erection of shaft in bottom zone of productive deposits, driving of horizontal underground mines and sumps below bedrock of bottom productive deposits, in zone of stable rocks. Mines are used to arrange slanted-upward production wells, pumping of ore-bearing pulp from sumps to surface is carried out by pump-draining pumps along pulp lines. In the middle and along channel of productive deposits, on surface there are down holes erected with filter columns with full-hole openings and their exit to horizontal underground mines. On two sides of bottom zone along bottom line of productive deposits, over bedrock, slanted-horizontal wells are arranged, from which productive deposits are activated by hydraulic monitors, being transferred into pulp, which is supplied into sumps via full holes of filter columns of down holes and via slanted-upward wells. Arrangement of slanted-horizontal wells is carried out with their direction to filter columns of down wells.

EFFECT: method makes it possible to develop productive deposit to the maximum.

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