SU1578341A1 - Method of mining ore body - Google Patents

Abstract

The invention relates to steeply dipping underground mining. The goal is to reduce the dilution of ore and the cost of production and increase safety of work. The ore is excavated by panels. Panels work out the continuum. Stocks are clogged and discarded from drilling workings / BV /. At the same time, the BV and delivery openings / DV / are made in a width equal to the width of the panel. At the same time, the LW of each panel to be worked out is formed in the soil of the subsequent adjacent panel, and the BV of the panel to be tested is passed in this panel with a stepped displacement vertically along the roof of the LW waste adjacent panel laid with a hardening mixture. Repulsed stocks of the panel are released through the loading races between BV and LW. In this case, the formation of loading races into the panel being worked out is carried out under the BV of this panel by installing the air shells in the DV of the waste panel before it is laid down with the subsequent removal of the air shells after the bookmark is solidified. Broken ore is transported in the Far East. The developed space of the panels and preparatory workings are laid with hardening mixtures. 3 il.

Description

The invention relates to the mining industry and can be used in the underground mining of steeply dipping deposits of valuable ores occurring in difficult mining and geological conditions, with the laying of the developed space with a hardening mixture.

The purpose of the invention is to reduce ore cutting and mining costs and increase work safety.

Figure 1 shows the scheme of mining mining site, a section along the strike of the ore body; figure 2 - section aa in figure 1, (the scheme of preparation of the bottom of the excavation site); FIG. 3 is a diagram of the formation of loading races.

The method is carried out as follows.

The excavation area (block, floor, basement, etc.) 1 is worked out by vertical panels 2, which are prepared by drilling workings 3 and extension workings 4 connected by loading races 5 (Figures 1 and 2). The drilling production 3 is positioned flush with the previous drilling production 6 of the used panel, laid down by the hardening tab, and passes along the contour of the panel 2 to be tested on the roof 7 of the delivery generation of the used adjacent panel. Delivery production 4 each subject to development

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the panels are carried out in the soil of the subsequent adjacent panel 8. At the same time, the openings 3 and 4 are passed with a stepwise vertical shift relative to one another and have a full facet of similar panel

Working out steeply dipping ore bodies with a continuous excavation of ore with vertical panels, in which drilling and part mining workings pass along the contour of the panels (i.e., the width of the panel is equal to the width of production), allows the development of reserves with a small surface area of which the sides are exposed. that ensures its preservation under unstable host rocks, i.e. eliminates the self-destruction of rocks of the hanging side into the cleaning space of the panel and, therefore, improves the safety of mining, reduces the dilution of ore and the cost of excavation.

After the preparatory work is carried out, they start cleaning the excavation of panel 2. Drilling wells 3 and layered ore blasting are made from drilling production 3 (figure 1). The shipment of broken ore lead through the loading races 5 on the delivery formulation 4 (figure 2). The formation of loading runs into the panel being worked out is carried out under the drilling development of this panel. To do this, after working the panel 2 in its delivery development 4 of the used panel, pneumatic shells 10 (FIG. 3) are placed, the dimensions of which are equal to the size of the loading races 5. Then the cleaning space of the used panel 2 with the corresponding preparatory workings 3, 4 and races 5 isolate and filled with hardening mixture. After setting the required strength with a pad, the cycle of preparation and cleaning of the next panel 8 is repeated in the same way. In the process of preparing panel 8

the air shells 10 are removed from the delivery making 4, laid down by a hardening tab, to form the next loading runs. In this way, the ore body is processed throughout the entire horizon. Inventories in the underlying horizon are removed in the manner described above under the protection of an artificial array of hardening bookmarks.

Claims (1)

The invention The method of developing ore bodies, including a continuous excavation of ore by vertical panels, carrying out drilling and delivery workings and loading races between drilling and delivery workings, drilling and mining reserves of the panel from the drilling workings, shipping the ore through loading races, transporting it through delivery workings and laying the worked-out space of the panels and preparatory workings with hardening mixtures, characterized in that, in order to reduce the dilution of ore and the cost of mining Increasing the safety of work, drilling and delivery workings are made a width equal to the width of the panel, while the production workings of each panel to be worked out are formed in the soil of the subsequent adjacent panel, and the workings of the panel to be tested are passed in stepwise offset verticals on the roof of the delivery formulation of the waste adjacent panel laid down by a hardening mixture, the formation of loading races in the panel being worked out is carried out under the drilling development of this panel installing the air shells in the delivery development of the waste panel before it is laid, with the subsequent removal of the air shells after the bookmark is solidified.  W. : :: v:: 4v yrv: ts / iV: -.: &:.: - “:  : .i. 7m .. -o -o .. NA .V l. : about .v-l.:. b. about  .-.. R. „T. Oh ... . About "-.I MY 5 3 7  -in ", gv X ;: iv .i -V-ivM   ° o  I. J -I : .t / l V .; : p.v. ". / J- -. lV. y | y / 7 1 FIG. 2 10 10 4 - .. M -:, J .. 1, i. “;. TO -J. -: h  ".  .IV-T. v..To-D-; v: -; t -; fl. . ABOUT .o - about Phage.Z