SU953211A1 - Method of open-cast mining of adjoining horizontal and gently-sloping seams of minerals - Google Patents

Description

The invention relates to the mining industry and can be used in open pit mining; fossil.

 There is a method of open development of contiguous horizontal and flat layers of minerals, including the development of the approaches of the ledges between the area by blocks of dragline 1.

The closest to the invention is a method of opencast mining of horizontal and flat mineral layers, including testing of strips of overburden and of steps of slopes between the dragline blocks and dumping of overburden rocks and rocks of interplast into the internal dump of the rocks, working out of the overburden rocks and rocks of the interdust into the internal dump of the rocks, working out of the overburden rocks and rocks of the interdustal into the internal dump of the rocks, working out of the overburden rocks and rocks of the interdustal into the internal dump of the rocks, working out of the overburden rocks and rocks of the interdustal into the internal dump of the rocks, working out of the overburden rocks and rocks between the area and the internal dumps of the rocks, working out of the overburden rocks and rocks of the interdustal into the internal dump of the rocks, working out of the overburden rocks and rocks between the areas in the internal dump of the rocks, working out of the overburden rocks and rocks between the areas in the internal dump of the rocks, working out of the overburden rocks and rocks between the area and the internal dumps of the rocks, developing the bottom layers. following the development of the faces of the overburden and the ledge between the regions, the holding of congresses 12.

The disadvantage of the known methods is that they do not allow to increase the efficiency of the development and to ensure averaging of the mineral and recultivation.

The aim of the invention is to increase the efficiency of the development and

ensuring averaging of minerals and recultivation in the presence of potentially fertile rocks between the areas.

This goal is achieved in that, according to the method of rock, each block of the overburden is poured into the lower russ of the heap, and the rocks adjacent to the overburden block of the 10-pitch backbone are poured into the upper rus, while the lower layer is excavated ahead of the upper layer. , and the front, by excavation of the uppermost stratum, makes the leveling of the filled mineral below layer over the entire width of the upper stratum, and the latter is worked together

20 with a flattened mineral of the underlying reservoir.

Figure 1 shows a scheme for working out contiguous horizontal and flat seams of useful minerals; figure 2 - section aa in figure 1 in fig.Z - section bb in figure 1.

The way of open development of contiguous horizontal and flat seams of minerals includes

Claims (2)

30 tampering of the entry of the scrap ledge 1 and of the steps of the ledge 2 between the blocks with the dragline 3, which is installed on the roof 4 between the sleeves 2 with dumping of overburden rocks and rocks between the spines into the internal dump of the Rus and the working of the overlying 5 and underlying b layers. 1 and the ledge between the area 2 In this case, the rocks of each block of the overburden ledge 1 are poured into the bottom of the blade, and the rocks adjacent to the overburden block of the block of the ledge between the layer 2 are poured into the upper layer 8. After that, the same t hibernation hundred audio dragline carried out recess underlying layer 6 ahead in the space above the recess of the overlying formation & and with the dumping of the mineral 9 of the underlying reservoir b on the roof 10 of the overlying reservoir 5, while before excavation of the overlying reservoir 5 a leveling is performed with the bulldozer. with a leveled out useful. and (7. drilled 9 underlying layer 6. After moving the bed of the overlying layer 5 from the upper area of the 12 overburden ledge 1 to the lower one, the ramps 13 are held. Then, using known means of mechanization The proposed method improves the efficiency of development. Formula of the Invention A method for the open development of close horizontal and flat mineral layers, including the mining of overburden and intersection steppings with dragline blocks and overburden rock formations. into the internal dump by the Rusas, the working of the overlying and underlying layers by stopping, following the advance of the faces of the overburden ledge and stupid interplast, congresses, characterized in that, in order to increase the efficiency of development and ensure averaging of minerals and recultivation in the presence of potentially fertile rocks between the regions, the rocks of each block of the overburden ledge are deposited into the lower russ of the dump, and the rocks adjacent to the overburden block of the ledge between them poured into the upper rus, while the excavation of the underlying reservoir is made with advance in space above the excavation of the overlying reservoir, and before, excavating the upper reservoir The leveling of the poured minerals of the underlying reservoir across the entire width of the stope of the overlying reservoir is introduced, the latter being worked out together with the leveled minerals of the underlying reservoir. Sources of information taken into account in the examination 1. Extraction of coal by an open method. M., ZNIEIugol, 1974, 2, p. 6-7. 2. Extraction of coal by the open method. M., ZNIEIugol, 1974, 8, p. 18-20 (prototype).