FIELD: mining.
SUBSTANCE: invention relates to mining industry, namely to stage-by-stage development of mineral deposits, and can be used at formation of temporarily non-working sides, aimed at reduction of current overburden coefficients during initial development of deposits. In method of development of steeply dipping deposits of round shape with application of single-stage steeply inclined temporary non-working sides, including formation of open space, development of overburden rocks and provision of freight communication of working horizons of pit with surface of pit wall, from side of lying side of deposit is put in limit position and opening works are made on it, which are intended for provision of freight communication of working horizons of pit with surface for the whole period of deposit development, and in quarry space on the side of hanging wall of deposit in process of mining development one-step abrupt inclined temporary non-working board is formed, on which temporary mine openings are arranged, wherein the angle of inclination of the single-stage steeply inclined temporarily idle side is received close to the limit angle of inclination, in the base of the single-stage steeply inclined temporarily non-working side, a stone protection platform is arranged, which is intended for protection against rock falls of underlying horizons of the pit, after reduction of single-stage steeply inclined temporarily non-working bead to its final position, its re-opening and development of support pillar, on which it is located, are started, development of support pillar is carried out with horizontal layers using hydraulic excavators of "reverse spade" type, as the support pillar is being developed on the releasing limit board, permanent opening workings are formed, which are intended for transportation of waste volumes of the rock mass to the surface, rock mass falling on stone protection platform during development of single-stage steeply inclined temporary non-working side, hydraulic excavator of "reverse shovel" type is loaded into vehicles and by mine openings of non-working pit on side of lying side of deposit is removed to surface, after development of the upper one-stage steeply inclined temporary non-working side, one-stage steeply inclined temporary non-working bead adjoins from the bottom to the upper one-stage abrupt inclined temporary non-working board, and to its further development.
EFFECT: reduction of the current overburden ratio during the initial period of development of the round-shaped deposit by controlling the mining mode based on application of single-stage steeply inclined temporary non-working sides.
1 cl, 2 dwg
