SU1221356A1 - Method of working thick gently-sloping ore deposits - Google Patents

Description

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The invention relates to the mining industry and can be used in underground mining of mining systems with the development of the space developed.

The aim of the invention is to increase the development efficiency by reducing the cost of isolating the generated space and reducing the likelihood of breakthrough of the liquid fraction of the bedding into the cleaning space.

The drawing shows a removable layer, a vertical section.

The method is carried out as follows. -

Removable layer of ore prepared according to the scheme of long pillars along the strike. For this, transport and ventilation drifts are made on the sides of the excavation floor, split production, in which the mobile mechanized support is mounted 1 The breaking of the ore is carried out either by drilling and blasting, or by means of a combine with a burlinging organ.

The prepared layer is taken out in succession by horizontal 2 and inclined 3 sections, forming the developed space in the direction of the movement of the cleaning staircase shape.

Or I.Rybchenko 1563/40

Compiled by A.Loginsky Tehred V.Kadar

Cor Pod

Circulation 470 VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Rauschska nab., 4/5

Branch PPP Patent S Uzhgorod, st. Project, 4

3562

After the inclined sections of the layer, horizontal and adjacent to it, the developed space is laid with a hardening tab. Simultaneously with the laying, the next horizontal section 4 is being excavated. The soil of section 4 is formed not lower than the roof level of the previous horizontal drawing 2. This ensures that the liquid fraction of the laying out is not broken into the cleaning space and allows simultaneous cleaning and filling works.

To ensure a reduction in the volume and cost of preparation of the layer, rifled excavations can be constructed in the laying of the excavated underlying layer.

The invention can be implemented without the use of mechanized support, for example, using self-propelled equipment.

When using self-propelled equipment, the angle of inclination of the inclined sections of the layer can be significantly increased, for example, to 50 °. In this case, at least one run is made in the inclined layer to move the self-propelled equipment from the spent horizontal section of the layer to the upper horizontal section of the layer.

Proofreader I.Erdeyi Subscription

Claims (1)

METHOD FOR THE DEVELOPMENT OF POWERFUL SLIDING ORE DEPOSITS, including the extraction of ore by layers and laying of the worked out space as the working face moves, which is aimed at increasing the development efficiency by reducing the cost of isolating the worked out space and reducing the likelihood of breaking the liquid fraction of the bookmark into the treatment space, successive recesses of the layer by horizontal and inclined sections form a worked-out space of a step-like shape in the direction of movement of the treatment about the face, lay the worked out space after excavation of the horizontal and adjacent inclined sections of the layer and simultaneously carry out the extraction of the next horizontal section of the layer with the formation of its soil not lower than the level of the roof of the previous horizontal layer. 1 1221356