SU636394A1 - Method of mining mineral deposits - Google Patents

Description

The goal is achieved by the fact that the upper sub-floor is worked out with a covered cleaning space, a cutting slot is formed on the lower subgrade iKe and the lower substage is cut, and the lower substage is cut underneath the lowering tab .

The axes of loading development and undercutting should be located relative to each other at an acute angle to the space of a working space.

FIG. 1 shows the camera under development; in fig. 2 - section A-A of FIG. one.

Worked out top space. Sub-floor 1 and the cut-off slit 2 are filled with a filling material 3. The ore 4 of the lower sub-floor 5 is crushed. It is supported by a filling material. Simultaneously with the drilling of the rising wells 6 from the loading excavation 7, the array of drilling holes was drilled for 8 days to form the lower hooking. Boreholes 8 explode simultaneously with wells 6

Filling the mined-out space and area of the slit with a backfill material provides favorable conditions for blasting and production of ore. When the lower substage collapses, it is produced in a clamp. In the release process, the tab is lowered, creating a retaining wall for blasting and discharging the next layer. At the same time, the height of the upper substage must not be less than the height of the lower one.

The penetration of undercuts at an acute angle to the loading development from the side of the collapsed massif makes it possible to eliminate losses of broken ore on either side of the loading output to the borders of the chamber.

The use of the proposed method of development of mineral deposits in the chamber system development compared to existing

provides the following advantages in ways: with higher labor productivity and less loss of ore, the reserves of the upper substage are worked out; the creation of a clamp for striking and discharging lower grade ore is simplified; ore losses are reduced when mining the lower substage; increases; sustainability

Formula inventions

1. The method of development of mineral deposits chamber system

which consists in dividing the chamber in height into the sub-floors and in the frontal release of ore under the laying of the loading output, characterized in that

In order to increase labor productivity, reduce ore losses and increase the stability of the bottom, the upper sub-floor works with an open cleaning space, forms a cutting slot in the lower sub-floor, makes the upper sub-floor and the cut-off slot, and under the release tab, lower the last sub-floor. passes to both sides of the loading formulation.

2. The method according to claim 1, characterized in that the axes of the loading generation

and sweeps are positioned relative to each other at an acute angle from the side of the goaf.

Sources of information taken into account in the examination:

1.Imenitov V.R. Technologists, mechanization and organization of production processes in underground mining of ore deposits. M., Nedra, 1973, p. 353-359.

2. Urumov Tjv. et al. The prospect of using development systems with laying and collapsing in the conditions of Jeskazgan. - Mining Journal, 1972, No. 11, p. 27ZO.

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