SU726338A1 - Method of excavating thick steep coal seams - Google Patents

Description

one

The invention relates to the mining industry and can be used in the development of powerful steep coal seams, mainly under complex geological conditions.

There is a method of developing thick steep coal seams in downward order with laying out the worked out space, including carrying out ground drifts and subsequent working out of layers 1

However, this method has a limited scope and is not sufficiently effective in certain geological conditions.

There is also known a method of developing thick steep coal seams with horizontal layers in descending order with setting the worked out space with hardening material, including drifts and slopes on the flanks of the excavation floor and the subsequent development of each horizontal layer with two strips along the direction of the excavation combine 2.

However, this method is also characterized by insufficient efficiency due to the large number of technological interruptions in the excavation of the excavation floor.

The purpose of the invention is to eliminate these disadvantages.

The goal is achieved

0 by the fact that in each horizontal layer, they first work out the strip at the lying side of the bed, and then at the end of which with a turn of the combine on. in the horizontal plane at the slopes and as the strip is working

5, at the side of which, at the approach of the combine to one of the skates, the combine is deepened into the underlying layer so that to the place of the turn and transition from the strip

0, the sides of the harvester were lowered to a height lower than the lateral layer, and before laying the waste strip, a formwork was laid on its soil, forming a cavity in the filling mass.

FIG. 1 is a diagram of preparation of a notch area of 0 FIG. 2 is a scheme for working out the horizon of 1 d 1 in 1 in pshosy y

lying side Shasta on $ igg

YESH Gyo-yk «pod1: nd Z vGTSTcheg on the side of the reservoir; Fig, 4 - the same, across the strike of the reservoir; FIG. 5 shows a development plan after the extraction of several layers. - -,

The excavation site on the ventilation horizon is opened with crosscuts 1 and 2, and on the haulage area — quertaland 3 and 4, Questd lag 1 and 3 are assembled with skate 5, passed at the lateral side of the formation. Quarters 2 and 4 are connected by a ramp b, passed at the side of the wall, in each side.

Layer 7, first of all, work out strip 8 at the lateral side; layer; When approaching the slope, the SHEYASH combine is turned 180

vTbrie 61ntSn6ypNoskosti begin to develop the strip 9 at the vis of which the sides of the reservoir. As the strip is working 9 At the approach of the combine to, slope 5 to the place of development and ne E: from the strip at the foot of which is S5okagT1y s; and tv;

P6; L6su at the lying side npoHslBOAHT 1U of the combine harvester and the underlying layer to the height of the latter. After the deepening, the combine is turned to work out at the recumbent bed of the underlying layer, then the excavation operations are repeated. Laying out of the developed space for the pd-pbl 6sn6 hardworking material. Before zakadkoy each waste strip on its soil lay a formwork, reflecting in the filling mass of the space, which will be used in working out the underlying strip for ventilation,

The use of this method ensures the continuous excavation of the entire eMOtHOfb TiOirtC, -..--::: ....,

726338

Claims (2)

Invention Formula The method of developing powerful steep coal seams in horizontal layers in a descending order with laying the worked-out space with hardening material, including making drifts and slopes on the flanks of the excavation floor and the subsequent development of each horizontal layer by two strips along the direction of the excavation combine, distinguishing so that, in order to increase the efficiency of development by providing continuous excavation of the entire excavation floor, in each horizontal layer, first run a strip at the recumbent side a hundred, and then - at the sight of which with a turn of the combine by 180 in the horizontal plane at the ramps And as the strip is worked at the hang of the bo, as the combine approaches one of the ramps, the combine is buried in the underlying layer in such a way that reversal and transition from the line at the sight of its side into the line at the lying side of the combine lowered the height of the underlying layer, and before laying the waste strip on its soil lay a formwork, forming a cavity in the filling array. Sources of information taken into account in the examination 1, USSR Author's Certificate 201282, class, E 21 C 41/04, 1965, 2. Biryukov R.A., et al. Refining technologists by horizontal layers with hardened laying, - Extraction of coal by the underground method, 1977,  1, s, 3-4. (Prototype). 5 .-, - -X v-i Aa-w -fe h .; 5y 5y-: Gr -.,;. .:. o ---- V-V.y / .v: O .-;.; -. :: .- o: Fy, -; .--. :. ,,. l. . ; ---; : About: -: L:: Y :: Y: 5L:; - Yy :: 11:;:;:;: Y; D . . ". 4 t - .-- ..74 ..-.-. "I I IT t: 0 k. -.i i-:. ;,;. -. .. vT  i- lliMiESiliE .0.-. r) -l I. r trfT: I r ... - - - I-. - I h: -: -v; -: v /;:    . - .... e.-.  .f /