SU916758A1 - Method of preparing block bottom - Google Patents

Description

The invention relates to mining industry ¹ and can be used for> mining of mineral deposits Underground method.

There is a known method of preparing the bottom of the blocks, which includes sinking backfilling, ventilating, trenching, working out for a vibratory installation, rising for cutting, binding, cutting for exhaust funnels, slopes, safety berms rising for funnels and exhaust funnels [1).

The closest to the proposed method is the preparation of the bottom of the blocks, including the driving of haulage, trench, ventilation and loading and hauling workings ", sboek and races [2].

The disadvantages of the known methods of preparation of the bottom are high loss of mineral and the cost of its production, due to the high height of the bottom, a significant amount of preparatory-rifled work and high labor intensity of excavation workings.

The purpose of the invention is to reduce the loss of minerals and costs

2

for its production due to the reduction of the bottom cell height, the volume of preparatory-cutting work and the laboriousness of the passageway.

This goal is achieved by the fact that the ventilation and trench excavations pass from the arrival from the evacuation excavation, and the ventilation excavation is located above the haulage and above the trench, while the loading-sufficient excavations pass from the trench excavation.

Figure 1 shows the layout. _ of the workings of the block bottom, section

the axis of the haulage drift; in FIG. 2 — section A — A in FIG.

To ensure transportation of the recovered mineral pro2, the haulage mine 1 goes. From it, a race (not shown) passes to the roof mark of the ventilation well 2, and the trench 3 and the ventilation 2 mine work are simultaneously started from the check. As the trenching works from it, loading and hauling

. 4 development under vibration settings. As the ventilation rate penetrates, 30 of the ventilation units pass through it 5.

916758

four

The use of the invention allows for the same grid location of the outlet holes to reduce the loss of broken ore and the cost of production.

Claims (1)

Claim The method of preparing the bottom of the block, including the driving of haulage, transport - 10 cervical, ventilation, loading and clearance workings, as well as sbjok and races, characterized in that, in order to reduce the loss of mineral in the bottom and the cost of production by reducing height the bottom and the reduction of the preparatory-rifling work, ventilation and trench excavations pass from the check-in from the haulage excavation, and the ventilation excavation is positioned above the haulage and above the trench, while ohodyat generation of trench.