METHOD FOR EXTRACTION OF SLANTED BED OF HARD MINERAL RESOURCE BY MEANS OF METHOD OF WELL HYDRO-EXTRACTION (VARIANTS) Russian patent published in 2004 - IPC

FIELD: mining industry.

SUBSTANCE: according to the method, extracting block is placed on quarry shelf and directed in direction of fall of bed of mineral resource. At limit of block in deep section of bed extracting well is drilled up to its exit into bed soil, after which procedure well is cased from mouth to bed ceiling. In mineral resource bed hydrowashing is performed to form receiving chamber, then well is provided with slurry-hoisting equipment. Necessary condition for method realization is construction along said limit of extracting block up to connection to accepting chamber of extracting well of transferring mine with slant from 4 to 8%. Along transferring mine slurry is self-propelled from peripheral portion of mineral resource bed into receiving chamber, and from there, by means of slurry-hoisting equipment, is sent to the surface. In side of quarry along mineral resource bed a row of parallel extracting wells is drilled, which are hydraulically connected to transferring mine. Extracting wells are provided with hydromonitoring body. Hydro-mining of mineral resource is performed while moving hydromonitoring body in extracting wells from transferring mine to quarry side. On basis of method of driving transferring mine, two variants of invention realization are possible: transferring mine is driven by means of hydraulic washing of mineral resource bed from auxiliary wells drilled at the limit of extracting block, and transferring mine is formed by hydraulic washing of mineral resource bed in face-adjacent areas of extracting wells.

EFFECT: lesser amounts of drilling operations and simplified control of extracting wells during process of bed extraction.

3 cl, 4 dwg