SU1286777A1 - Support for haulage drifts - Google Patents

Abstract

The invention relates to the mining industry and can be used for fastening-up during the underground mining of minerals. The aim of the invention is to simplify the technology for the development of the ore deposit by imparting the function of descending as the shield develops. The support consists of installed along the stretch) deposits across the frames to one another. They consist of racks 11, top, tacks 2 and common upper 3 and lower 4 longitudinal beams, with additional racks (TO 5. B. Bolts 3 and 4 with racks of II adjacent frames have common shaped lining SPS) 12. When this FN 12 with one end mounted on racks 11, and their other ends and beams 3 and 4 have coaxial holes. In beams 3 and 4, the holes at the points of their connection with FN 12 and DS 5 are larger in diameter than in FN 2 and DS 5. As the frame ore is lowered, they are lowered by the thickness of the harvested layer along strike I (O

Description

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deposits and additionally across its strike, slipping at the junction of the pillars 11 with beams 3 and 4. Following the advance of the front

ore harvesting of the beam 3 and 4 DS 5 nodes with a pressure of its own weight is placed on the outsole of the loading and delivery openings. 1 hp f-ly, 8 ill.

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This invention relates to mountainous

industrial conditions and can be used when attaching workings in underground mining of mineral deposits.

The purpose of the invention is to simplify the technology of mining of the ore deposit by imparting lining to the lowering shield as the deposit has been mined.

Fig. I shows the support, installed in the cleaning space, general view; figure 2 - lining with practical frames; fig. 3 — lining with frames consisting of two half-frames; in fig. 4 - joints of the longitudinal beam with the frame uprights and additional posts; on fig.Z - lining with a pillar, longitudinal view; Fig. 6 shows the connection unit of the pelle frames with each other along the top; FIG. 7 shows the co-lining of the frame of the roof supports with longitudinal beams by means of linings; Fig. 3 shows the assembly of connection of additional racks with longitudinal beams.

The support consists of frames 1, 2 zatk upper 3 and lower 4 longitudinal beams with additional posts 5 and connecting elements. The frames 1 can be integral (figure 2) or consist of half-frames 6 (figure 3), or of the tops and struts interconnected by clamps (not shown). They can also be tough go tax. In the upper part of the frame 1, they are interconnected by means of brackets 7, brackets 8, brackets 9 and nuts 10. Racks 11 frames 1 by means of figured pads 12, bolts 13 and nuts 14 attach the yen to the upper 3 and lower 4 longitudinal beams. In the intervals between the frames 1, additional posts 5 are attached to the upper 3 and lower 4 longitudinal beams with the help of bolts 15 and nuts 16. In the longitudinal beams 3 and 4 holes in the places of their connection with figured overlays 12 and additional 20

body racks 5 are made of a larger diameter — f th than in the plates 12 and additional racks 5, in order to ensure the possibility of displacement, 5 parts relative to each other,

those. some constructive compliance in the nodes of the system. Interframe: the space is fixed by tightening 2 ,. for example, from expanded metal sheet or from another material, depending on the magnitude of the loads perceived by the support. To prevent overburden of I7 into the reinforcement space of the puff 2, there may be several layers. Frames 1, longitudinal beams 3 and 4 with additional posts 5, connecting elements 7,8,9, 10,12,13,14,15,16 and tightening 2 about 10

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they want a single constructive system.

The mounting brackets are as follows.

The ore massif of the substage, designed for mining, is drilled and destroyed, leaving in its upper part 18 of the ceiling 18 with a thickness somewhat greater than the height of the loading and hauling workings 19. In the left of the ceiling 18, the excavation and haul workings 19 are sinking, having their soles 20 on loosened ore massif 21. In the loading-and-delivery excavations 19 along the sulfur of their penetration, the upper 3 and lower 4 longitudinal beams are mounted on additional racks 5 with bolts 15 and nuts 16. Then install the frames 1, attach 40 n their longitudinal strut 11 to the ball cam 3 and 4 by means of cover plates 12, bolts 13 and nuts 14. The frame 1 over the top joined together by means of tie-rods 7 ,. brackets B, strips 9 and nuts 10.

45 Interframe-.space top loading and hauling workings 19, and in the extreme workings 19 - from

ore pillar 22 and side collapsed. The rocks 23 are secured with fastenings 2. After the installation is completed, the remaining part of the ceiling 18 is destroyed.

The works are carried out as follows.

1 From the outsole 20 of the loading and dredging workings 19 with the loading and dosing means, starting from one of the ends of the workings 19, gradually remove and transport the layer of loosened ore. As the ore of frame 1 is harvested by its own weight and overburden 17, it is lowered by the thickness of the harvested ore layer along the strike of the deposit and additionally stretch across it, sliding through the joints of racks 11 of frame 1 with longitudinal beams 3 and 4. Following the advance of the ore harvest front the longitudinal beams 3 and 4 with additional pillars 5 OOD, with their own weight, are lowered by the supports 24 of the additional racks 5 onto the outsole 20 of the loading and hauling workings 19, slipping at their joints with the frames 1.

At the end of the harvesting and transportation of ore from the layer, all the frames 1 with the supports of 25 racks I1 are lowered under their own weight and overburden 17 to the newly formed sole 20 of loading and delivery 6y- workings 19. With some delay, the longitudinal beams 3 and 4 are lowered with additional racks 5 by its own weight. After completion, excavation of the ore, the cleaning, loading, transportation of the rock mass and lowering of the lining of the parallel loading and hauling workings 19 are repeated in this sequence until the end of the mining of the excavation site.

The speed, the uniformity of lowering the lining of several workings is regulated by changing the intensity of cleaning and the thickness of the layer taken from the sole of the workings. Since during the clearing excavation the support of loading and hauling workings is constantly, slowly and evenly lowered, the redistribution of stresses in the system enclosing rocks - loosened, the mineral mineral - the workings lining, as a result of rock pressure, and, consequently, the loads perceived by the support are decreasing. The support is constantly moving away from the pressure

eliminating conditions for its growth.

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Claims (2)

1. Support loading and hauling workings, including the installed: along the workings of the frame, consisting of racks and top, and pulling, characterized in that, in order to simplify the technology of mining ore deposits by providing the lining function as it descends shield, support frames are additionally installed perpendicular to the longitudinal axis of the loading and delivery .. extended to each other, and the adjacent frames are equipped with common upper and lower longitudinal beams, the longitudinal beams having additional racks installed between the frame posts, and the longitudinal beams and the adjacent frame bars having common figured overlays, with the figured overlays at one end They are mounted on frame racks, and their other ends and longitudinal beams have coaxial holes, moreover, in additional racks and longitudinal beams, similar holes are made for installation in said coaxial holes of fastening bolts. five 2. A support according to claim 1, characterized in that the holes in the longitudinal beams are made more longer than the holes in the figured overlays and the additional beams. 23 G5 fie. one fug. 2 f 2 21 20 0g / g C (rig. 6 73 72 H eleven . 7 z.