SU109819A1 - Combined method of developing a powerful coal steeply dipping seam with two inclined layers - Google Patents

Description

Methods for developing heavy coal steeply dipping layers by two inclined layers using flexible metal overlap, which is a means of separating the collapsed or backfill from the coal of the lower layer, are known.

A special feature of the described method of developing grape-type steeply dipping seams is the recess of the mounting P1, spruce at the hanging side of the reservoir, located on the double bar of the cutting machine or plow unit. The height of the mounting gap is 0.3 m: The sublevel and intermediate drifts at the hanging side of the reservoir are fastened with a special metal support.

FIG. 1 shows a section along AA in FIG. 3; in fig. 2-section along BB in FIG. I; in fig. 3 is a section along the explosive in FIG. one.

Kretz / consists of an arcuate top, one rack and an anchor bolt 2. The installation of a flexible metal ceiling in the installation of Hoii P1, e.1 and 3 is carried out in a mechanized way with POMOP1, U of a special machine 4.

Subject invention

The method of working out is combined, Horo coal steepness 0 1, its reservoir with two inclined layers, with a notch of the upper layer hanging from the side of the reservoir with lava, followed by 1, and their separation. The collapsed or backfilling rocks from the bottom of the bottom layer with a flexible metal terekryty, different, and with the fact that, in order to mechanize the excavation of the upper mounting layer, the core was installed at the hanging side of the reservoir u & выс height of about 0.3 m with installation of 1 luarochnoy lining and subsequent laying of flexible

cover with ribbons with them in peiHCTKy. RR 5 cross section

FIG. one

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Fmg 2

88 section

 .zpEz on Bi}

FIG. 3