RU2002102083A

RU2002102083A - The method of developing powerful flat coal seams

Info

Publication number: RU2002102083A
Application number: RU2002102083/03A
Authority: RU
Inventors: Иван Александрович Шундулиди; Степан Илларионович Калинин; Игорь Борисович Коржов; Степан Николаевич Суховольский
Original assignee: ОАО "Шахта им. Ленина"
Filing date: 2002-01-23
Publication date: 2003-09-10

Claims

1. A method of developing powerful shallow coal seams, including layer mining of coal seams with treatment mechanized complexes with the release of a subroofing or interlayer bundle of coal onto a conveyor of a complex mechanized working face, characterized in that the first - the upper layer of the seam having disjunctive disturbances is worked out with an entrance to the zone of formation disturbance from the "discharge" side, the hard-to-collapse roof of the formation is transferred to the category of easy or medium breakdown by applying advanced rock torpedoing to leveling of the formation or by the method of hydrodynamic stratification of the rocks of the roof of the formation, and the lower layer — the undercutting layer near the soil of the formation is worked out with the entrance to the zone of formation disturbance from the side of the “thrust”, after the transition of the disturbed zone of the formation, the mechanized complex is transferred to the soil of the formation and the rest is worked out with the release of an interlayer bundle coal, while the operation to transfer the mechanized complex to the soil of the formation is performed after it is completely transferred through the disturbed part of the formation.

2. The development method according to claim 1, characterized in that the mechanized complex, after working out the upper layer at the boundary of the extraction field, is rotated 180 °, transferred to the undercut layer of the adjacent extraction column, worked out to the violation zone, and after the violation zone, the mechanized complex is transferred again to the soil of the reservoir and work out the undercut layer with an increased interlayer bundle of coal.

3. The development method according to claim 1, characterized in that on the far border of the panel, a strip for turning the mechanized complex with a width equal to the sum of the length of the mechanized complex with adjacent excavation workings and the width of the zone for transferring the mechanized complex from the upper layer to the undercutting layer is allocated.

4. The development method according to claim 1, characterized in that the adjacent extraction columns are worked out by paired lavas with mechanized complexes, while in the turn strip of the complexes one of the paired working mechanized complexes is first turned 180 ° in the plane of the upper layer, and then transferred to the slash a layer to the soil of the formation, and another complex is first transferred to the level of the undersowing layer, and then deployed to 180 ° or dismantled.

5. The development method according to claim 1, characterized in that the value of the subroof pack of coal after the transition of the zone of formation disturbance is taken to be equal to the magnitude of the “throw-up" of formation disturbance, and the value of the interlayer bundle of coal is determined from the expression

h _ms = hh _pc -h _1s -h _2s , m,

where h _ms is the value of the interlayer bundle of coal; m;

H is the total thickness of the reservoir, m;

h _pc - the value of the roofing pack of coal, m;

h _1s is the height of the first undercut layer, m;

- the height of the second undercut layer, m