SU1054540A1 - Method of open-cast mining of sloping and gently-sloping mineral beds - Google Patents

Abstract

METHOD OF OPEN DEVELOPMENT OF INCLINED AND LOOSE PLAINS OF USEFUL MINERALIZED, including mining of roofing rocks and formations in horizontal layers with the provision of split trenches and mining of layers by overburden and mining approaches, characterized in that, in order to improve the safety of mountain work, the layers of overburden and mining approaches, characterized in order to improve the safety of mountain work programs, in order to improve the safety of mountain work programs. , each split trench is conducted in a hanger to the side of the reservoir to a depth of two layers, the stripping and mining pits in the limits of each layer are worked from the split trench to the exit at the top of the layer (layer layer, while the overburden lock is worked by two faces, with a leading notch of a triangular prism, located in the indicated gate from the side opposite to the split trench and adjacent to the roof of the mineral layer, and the mining runoff is worked by two advance excavation of a trellised coal prism along the mineral reservoir adjacent to the rocks of the specified reservoir, and the mineral is placed in a collar on the upper platform when the triangular prism of the reservoir is excavated mining of the mining approach and re-exploring the specified collar simultaneously with re-extraction of the mineral lagging behind the mine: l sd mining mining. four

Description

The invention relates to the mining industry and can be used in the open development of sloping and gently sloping mineral seams. Known is the open mining of sloping mineral strata, which includes cutting trenches and working nhacTOB with sloping layers with dredging by inserts. Ij The disadvantage of this method is insufficient security no mining operations when part of the equipment is placed on inclined work sites. The closest to the technical essence and the achieved The result is an open pit mining method of sloping and gentle mineral deposits, including the mining of overburden rocks and layers by horizontal layers with conducting trenches and mining of stripping and mining steps 21. The disadvantages of this method are insufficient safety of mining operations due to the need placing equipment on inclined work sites, relatively high losses and dilution of the mineral in the process of mining, limited area Changes (methods are ineffective on steeply inclined formations) "The purpose of the invention is to increase the safety of mining operations and reduce losses and dilution of mineral resources, the goal is achieved by the method of open development of inclined and flat mineral deposits, including the development of overburden and layers of horizontal layers with conducting split trenches and mining of layers by overburden mining stoppers, each split trench is conducted in a dangler to the side of the seam to a depth of The ear layers, the overburden and mining penetrations within each layer are worked from the split trench to the formation exit to the upper layer of the layer, while the scrap entry is worked out two times with a leading notch of a triangular prism, which is open in the indicated step from the side opposite to the split trench and adjacent to the top of the reservoir is of a fossil, and the mining output is worked by two faces with a leading excavation of a triangular prism along the reservoir; the mineral is adjacent to the rocks of the soil one wherein the mineral product when removing the triangular prism is placed in the reservoir at the top of shoulder stope and pereekskavir dissolved simultaneously with said shoulder pereekskavatsiey mineral lagging slaughtering stope mining of Figure s 1 is a diagram of mining operations, a plan view; in fig. 2 is a section A-A in FIG. 1; in FIG. 3, section BB, FIG. 1, “The method is implemented as follows.” In the development of flat layers 1 and 2 of mineral resources, such as phosphorites, a split trench 3 is suspended in the side of layer 1 to a depth of two horizontal layers 4 and 5 After that, from the upper platform of the upper layer, two layers are simultaneously drilled and grossly exploded simultaneously over the entire width of the future approaches. The stripping 6 of the upper layer is worked out ahead in space. To do this, ahead of the main indent, the stripping of the loosened formation 1 is carried out with an excavator with a notch of a triangular prism of 7 overburden over the formation within the layer and placing the rocks in the collar 8 onto the surface of the opening of the overburden G with a lag from the stripping of the upper stripping 6 layer with simultaneous re-excavation into vehicles, in particular dump trucks, of the collar rocks 8. .. Following the overburden mining, the loosened formation 1 is excavated along the a mineral within a triangular prism 9 of layer 8 within a layer with stripping of rocks between the areas and placing the mineral in a collar 10 on the surface of the mineral. The loosened mineral and burt 10 are processed within the lead-in layer 11 In the same way, the lead-in rock 12 is worked up between the area within the upper layer and the lower layer 13 in the limits of this layer;

After the upper layer has been developed, the next layer is tested using the above-mentioned layer for the layer. At the same time with the mining of the layers, the pit junction is carried out by the front And then Next, a split trench 15 is again carried out for the next two layers and they are started for mining. The development of landings within each layer is carried out with a stepped front starting from the split trench to

courier board. For transport ct .., -. from the working area (upper layer pulls to the working platform of the lower layer; exit 16 is held along the split trench.

The proposed method allows to reduce losses and dilution of the mineral, to expand the field of application, thereby increasing the efficiency of mining in the development of sloping and flat mineral layers.

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Claims (1)

METHOD FOR OPEN DEVELOPMENT OF INCLINED AND GANFLOW PLAYS OF USEFUL FOSSILS, including working out of overburden and strata with horizontal layers with cutting trenches and working out layers with overburden and mining approaches, characterized in that, in order to increase the safety of mining and loss, reduce, reduce each split trench is carried out in the hanging side of the formation to a depth of two layers, overburden and production approaches within each layer are worked out from the split trench to the exit of the plat that the upper pad layer, wherein the stripping stope fulfill the two bottoms with advanced recess triangular prism positioned in said stope from the side opposite the split trench and adjacent the roof of reservoir minerals, 'and a mining stope fulfill the two bottoms with advanced tre- recess. a coal prism along a mineral layer adjacent to the soil of the indicated layer, and the mineral when excavating a triangular prism of the layer is placed in a shoulder at the upper site of a mining sunset and re-excavated said shoulder at the same time as re-excavation of the mineral lagging behind the bottom of a mining sunset. 1 J054540