SU1067227A2 - Method of hydraulic stowing of goaf at working-out steep coal seams along strike - Google Patents

Abstract

THE METHOD OF THE GENERAL BOOKMARK OF THE DEVELOPED SPACE FOR DEVELOPING CIRCULAR COALS FOR EXTINGUISHING THE EXTENDING AUTHOR. Ev, No. 756044, from LI Chuw and also with the fact that, in order to increase the safety of work, before feeding the filling material into the inter-band space under it, building is emanating from the lava, after the laying of the next band, the outputs of the previous band cancel / and the space, which is deactivated by them, is completely laid, while in the filter strap they arrange windows for the passage of people into the cleaning space. (L O5 i | Vl

Description

The invention relates to mining and can be used in the development of steep thin and medium thickness seams, which work on protected structures, onacHFjx for sudden outbursts of coal and gas.

According to the main author. St. 756044 describes a method for hydraulically laying the worked out space during the development of steep coal seams by stretching, which consists in supplying backfilling material into the interband space formed by the filament and waterproof jumpers of the SI.

The disadvantage of this method is the low safety of work, due to the fact that the outlets from the lavas are located in the worked-out space of the ledge-shop, while the coal is dredged in the ledge-shop manually by jackhammers.

The purpose of the invention is to increase the safety of work.

Set goal Achieved by the fact that according to the method of hydraulic laying of the open space when mining steep coal seams, before feeding backfilling material into the inter-strip space under it, outcrops of lava are constructed, after the next strip has been laid, the outgoing lines of the previous band are retired at With this, in the filter jumper the windows are arranged for the passage of people into the cleaning space.

FIG. Figure 1 shows a pillar-like development system with a coal notch and a non-shop diagram, with the outcrops of lava located under the laid mass and hydro-laying area of noraiuaeMbix outlets; in fig. 2 the position of the bottom and the pledged array at the time of its maximum lag, in FIG. 3 - after the erection of the buffer, front and bottom jumpers and the formation of exits under the newly laid strip; in fig. 4 - after laying a new band; fia FIG. 5 - the moment of laying the area of extinguished exits under the previously erected array.

In the drawings, the bottom-hole space 1, the buffer strip-space between the buffer bridge and the waterproof bridge 2, the next strip 3 to be bookmarked; WATER CLEANER 4, previously, a revived pledged array 5; the space for the location of the existing outlets from .nastj b, the space of the exhausted exits, see the tab 7, the abnormal issue g))

outlets 8, filtering ne1; em1a is used as buffer 9, basic waterproof crossover, 10, prolapic window in buffer nepet / w4k For communicating the bottom hole space with outlets located under the pledged array 11, trump from organ lining 12, sole of backfill lanes 13, outsole (fencing) of exit space 14, outlets from lava 15, elements forming outlets 16, 17.

The hydraulic laying of the lava and extinguished outlet spaces is carried out as follows.

After the lava is pushed onto the bookmark by jumpers, a new main 3 and a buffer 2 strip are formed. Under the main strip 3, exits from the lava in space 6 are constructed. The space of the exhausted exits 7 is repaired and prepared for laying, for which the exits from the haulage roadway are sewn up with organ support. In the space of the spent outlets 7, a hydraulic pad is fed from the ventilation drift through a drainage well 4, which was previously intended to drain water during the laying of the main filling strip. It is subsequently laid on the entire height of the lava. The construction of the outlets under the mortgaged array and their subsequent laying after the quenching is in good agreement with the technology of erecting the overhanging folding block, which provides for the erection of the main and buffer polo in the developed space. A bumper 11 is constructed at the height of 16-20 in the bumper 9, which serves to connect the outlets with the bottom face of the lava, a visor 12 is erected from the organ support, which prevents the bruises from falling into random pieces of the corner when prolazed through the window. n or breed.

When the overhang buoys stop stops with the rear fencing of the main stowing strip, window 11 is sutured and organ lining 12 is knocked out. After such preparation, the main strip 3 is laid first, then through the drainage well, the backfill material in the form of slurry is fed into the space of the extinguished outlets 7 and fills it, after which the drainage well 4 is filled to the sole of the ventilation duct. When the paw moves to the bookmarking step, the order of work sequence is repeated.

The use of this method gpdg plicheski bookmarks worked out g

space and extinguished outlets on steep outburst formations allows, at the end of the year, to eliminate the non-shopline development of such reservoirs without workers in the lava during the excavation and to ensure the complete laying of the open space without voids, which allows to completely remove the reserves from seams that work on protected facilities, as well as improve work safety, /// q:) us.Z

ensuring the safety of workers, occupied by excavation of coal, as well as maintaining sustainable ventilation by creating back-up paths for the movement of the ventilation stream through the buffer space separated from the bottom hole area by a jumper that prevents it from entering the broken coal or coal that may form case of a sudden release of gas. % 4 V.v

Claims (1)

METHOD FOR HYDRAULIC TURNING OF THE EQUIPPED SPACE WHILE EXHAUSTING STEEP COAL SEAMS FOR STRING on Auth. St., No. 756044, with respect to 81 and the fact that, in order to increase the safety, security of work, before exiting filling material into the inter-band space, exits from the lava are built under it. After laying the next strip, exits the previous strip is extinguished, and the space occupied by them is completely laid, while windows are arranged in the filter jumper for people to enter the treatment space.