SU1467186A1 - Method of mining steep and sloping thick coal seams with hydraulic techniques - Google Patents

Abstract

The invention relates to the mining industry and may be. used in the underground development of the crutches and inclined thick coal seams using hydromechanization. Objective 1 The invention relates to mining, industrial activity and may be used in the underground development of steep and inclined coal seams using hydromechanization. The aim of the invention is to increase development efficiency by reducing the labor intensity of mining, improving safety and improving working conditions. FIG. 1 shows a formation development diagram in the plane across the strike of the formation; Fig. 2 is a diagram of the invention — increasing the efficiency of development by reducing the labor intensity of mining, improving safety and improving working conditions. Coal in the reservoir is dredged after the installation layer has been worked out and the layer of flexible overlapping of the layer with ascending inclined-transverse layers (VNPS), inclined to the horizon of 0.1 gO, 27, paired with extraction columns from transverse-diagonal extraction blocks in the sequence from lying to the vis which side of the reservoir. Coal pulp transport is carried out along pulp spacing boreholes, passed parallel to transverse-diagonal digging gangs in the VNPS plane, and pulp discharging bore, which is carried out with a slope between the block ventilation and remote-control furnaces and which is connected to the pulp exhaust ort and ventilation interchangeable VNPS. 2 з, п.ф-л, 2 Il. d О5 works of transverse-diagonal cleansing layers under flexible uncoupling overlap in the plane of the transverse-diagonal layer. The preparation of each excavation block for the production of working off a steep or inclined thick formation using hydromechanization ends with the installation of a flexible disconnecting overlap 1 in two planes on the soil of the installation layer inclined near the roof of the reservoir, with its transition to a transverse-diagonal layer at Bepjc-00 О5

Description

it borders the floor of the block. The section of the transverse-diagonal installation layer is located exclusively in the reservoir mass and has a slope to the horizon of up to 15 ° in the direction from the soil of the reservoir to its top. As the flexible one is mounted, the commoner overlaps the roof of the formation with it 1, and on the transverse-diagonal section of it the coal ceiling of the installation layer is formed.

After preparation of the excavation section of a steep or inclined thick formation, it is started to be developed under a flexible uncoupling overlap 1 by transverse-diagonal layers 2 extracted in a downward sequence. To do this, each transverse-diagonal cleaning layer is contoured with two mutually parallel layered drifts 3 and 4, carried out with a gradient drip-free, at the lower and upper boundaries of the transverse-diagonal cleaning layers.

The pulp-removal layer drifts 3 are led from the side ventilation oven 5 with a lift of 0.07 to both wings of the excavation block, along the uncoupling corner of the coal at the flexible disconnector, blocking 1 of the collapsed roof of the formation b. Ventilation layered drifts 4 are conducted from the block pulpospuschennoy furnace 7 to both wings of the excavation block with a rise of 0.07 at the recumbent side of the bed. Both drifts in each cleaning layer are knocked among themselves by means of pulp-removal layers orts conducted from pulp furnace 7 to the ventilation furnace 5 with their inclination from the ventilation block furnace to the pulsed block furnace from O, 1 to 0.27.

After carrying out: all three of these layered mine workings in each transverse-diagonal layer from the boundaries of both edges of the excavation block begin cutting the transverse-diagonal paired excavation pillars. Each pillar is cut by conducting a fur: a hydraulic hydraulic combine 9, from a pulp-removal layer drift 3 to a layered ventilation drift 4, and excavation transverse-diagonal lines 10.

Mutually parallel to the excavation orts, 10 are drawn from the same slurry drift, Z. pulpuspus ort wells 11. They are located in front of

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Claims (3)

the boundaries of the paired transverse-diagonal excavation pillars and communicate with the excavation of the ports 10 through cut-hole boreholes 12 through an interval equal to the sloping width of one double-sided clearing. After cutting not less than two excavation transversely-diagonal paired pillars in the working layer of each wing of the excavation block, the coal hydrotreatment is started in double-sided cleansing penetrations by hydraulic monitors 13 of the excavation orts. The coal pulp at the same time goes by gravity to the pulp throughput well-well 11, which is directly connected with the pulp removal drift 3. The cutting of the coaxial twin column, adjacent to the reserve excavated paired pole, is performed simultaneously with the hydraulic drilling of the primary shaft, same as the hydraulic drilling unit, the same one with the twin excavated twin column, is produced at the same time with the hydraulic drilling of the primary shaft with the same excavated twin column. rennoe notch transverse diago - pnivogo pillar. By the time of testing the next transverse-diagonal cleaning layer must be fully prepared for. About the next adjacent located transversely-diagonal pillar, etc. to complete mining of the excavation block by the dip and along the strike. Claim 1. A method of developing coal and inclined thick coal seams using hydromechanization, including holding block pulpusknye furnaces near the soil of the layer of pulpoottavaya layer drifts, excavating the sloping layer at the roof of the reservoir with its transition to the upper transverse floor in the upward transverse diagonal layer, the installation of a solid, flexible overlap on the soil of the installation layer as it is excavated with the formation of the roof rocks of the reservoir and the coal ceiling of the interfloor pillar coal with self-penetration collapsed rocks, previously exhausted adjacent, upper floor, the subsequent development of reservoir reserves under flexible overlap by means of coal hydrotreatment in the clearing stopovers from excavation orts of the ascending transverse-diagonal layers worked in a downward sequence, in order to increase development efficiency by reducing laborious51 mining, safety and improved working conditions, in each upstream transverse diagonal. On the base layer under a continuous flexible overlap, a temporary common pillar of the coal is formed in which a block ventilation oven passes through the uprising of the formation and parallel to the plane of the continuous flexible overlay of the installation layer, each pointed-f layer is outlined by a pulp drain. mutual and parallel mutually parallel drifts, with the pulp-removing layer drift being conducted along the disengaging coal, and the ventilation layer drift is carried out at the lateral side of the bed, after that, the indicated drifts are interconnected by mutually parallel transverse with the diagonal extraction ports and pulp spacing wells, the ascending transverse diagonal layers are worked out by paired excavations 1866 pillars of transverse-diagonal digging units in the sequence from the lateral formation to the lateral side, the coal pulp being transported through an ort, which is carried out with a slope between the block-type ventilation and pulp-bypass furnaces and connected to the pulp-outlet and ventilation drifts adjacent rising transverse diagonal layers. 2. The method according to claim 1, about tl and h ayusch and the fact that the transverse-diagonal section of the installation layer at the upper boundary of the working floor of the seismic class |) is tied with a slope of 0.1-0.27 to the horizon. 3. The method according to Clause 1, which means that the ascending transverse-diagonal layers of the working floor are formed parallel to the transverse-diagonal section of the installation layer. C.1 P 7 /.