SU877015A1 - Method of mining thick sloping coal beds - Google Patents

Description

The invention relates to the mining industry and can be used in mining powerful steep coal seams. from

Known way to develop powerful ^e GOVERNMENTAL steep coal seams, comprising carrying out the transport and airway, threaded workings and refinement polosa- formation. * mi with the laying of the worked out space with hardening material [1}.

There is also a known method of developing powerful steep coal seams, including transport and ventilation drifts and mining 15 of the seam with columns along strike and stripping of the strips by strips in the fall by drawing in each lane from the transport drift to the ventilation mark at the soil of the seam and the subsequent 20 excavation of the strip [ 2].

However, these methods are not effective enough in certain mining conditions.

The purpose of the invention is to increase the efficiency of the development.

The goal is achieved · by the fact that the extraction of each strip is made from the well by a hydromonitor unit with penetrations with development Each of 30 completions in the direction from the formation soil to its roof, while the next well is carried out in each strip simultaneously with the development of an adjacent strip, and after each stripes produce its laying with hardening material.

In FIG. 1 is a diagram of mining operations within a mining site; in FIG. 2 - strip mining scheme.

The method is as follows.

When practicing powerful cool. coal seam on the ventilation horizon, cut 1, which is laid with a hardening mixture. Under the bookmark spend generation 2, which is ventilation. On the main horizon spend transport drift'3. After contouring the excavation column along the strike of the formation, they begin to develop it in strips 4 along the dip. To do this, a well 6 is drawn from the drift into the soil of the formation from the drift drift to the ventilation drift ... The strip is drilled by the same drift unit by penetrations 7. Each run is drilled in the direction from the layer soil to its roof with coal transfer through the well to the transport drift . The next well is carried out in each strip simultaneously with the development of an adjacent strip. After the complete extraction of coal in the strip from the ventilation drift, a hardening tab 8 is fed into it.

The proposed method will improve the efficiency of mining powerful steep coal seams.

Claims (2)

The invention relates to the mining industry and can be used in mining powerful steep coal seams. There is a method of developing powerful steep coal seams, which includes carrying out transport and ventilation drifts, rifled openings and strip formation with laying of the exhausted space with hardening material 1. There is also a method of developing powerful steep coal seams, including carrying out transport and ventilation drifts and working out the seam by the pillars along the strike with the working of the pillars by the strips by the fall by holding in each strip from the transport drift to the ventilation The formations and the subsequent excavation of the strip G2 3. However, these methods are not sufficiently effective in certain geological and geological conditions. The purpose of the invention is to increase the efficiency of development. The goal is achieved by the fact that the excavation of each strip is carried out from the well with a jetting unit by retracing each step in the direction from the soil of the reservoir to its top, while the next well is spent in each strip simultaneously with the development of the adjacent strip. make its laying hardening material. FIG. Figure 1 shows a mining scheme within the excavation area; in fig. 2 is a strip mining circuit. The method is carried out as follows. When working out a powerful steep. . The coal seam on the vent horizon is cut 1, which is set to harden the mixture. Under the tab, a vent is made. A transport drift 3 is made on the main horizon. After the excavation column has been contoured along the strike of the formation, it is started to develop by strips 4 along the dip. To do this, a well 6 is driven into the soil of the reservoir by a jetting unit 5 from the transport drift to the ventilation one. The band is worked by the same unit by dropping 7. Each road is worked in the direction from the soil of the reservoir to its trunk with a coal angle along the well to the transport drift. The next well is conducted in each strip simultaneously with the development of the adjacent strip. After the coal has been completely excavated in the strip with a ventilation drift, a sub-piece of a hard-working tab 8 will be inserted into it. The proposed method will improve the efficiency of mining of powerful Steep coal seams. Claims of the Invention A method of developing powerful steep coal seams, including carrying out transport and ventilation drifts and mining the formation with columns along a strike with working columns in the fall strips by carrying out a kilogram from the transport line KA to the ventilation well into the soils of the formation and subsequent excavation strip, characterized in that, in order to improve the efficiency of development, the excavation of each strip is carried out from the well by means of a jets assembly by mining with every drill in the direction of and from the soil of the reservoir to its roof, while the next well is conducted in each strip simultaneously with the development of the adjacent strip, and after the strip has been developed, it is laid with hardening material. Sources of information taken into account in the examination 1. The author's certificate of the USSR I 262814, cl. E 21 C 41/04, 1967. 2. Authors certificate of the USSR I 646052, cl. E 21 C 41/04, 1978. Ug .ico SvjrtR MiUVWWWPiHvS wnVAW I} i cg one .ivV, rJ- j vJ «X Ж-Л-Л Х: у, г S (Reg. 2