CS252706B1 - Method of raises' lining for full-profile drilling - Google Patents

Abstract

The method of reinforcing mining chimneys after full profile drilling and after finding small cohesive rocks consisting, for example, of. \ t steel segment rings or bolts with a bitch, or a combination of them, rests in that the drilled chimney is positioned mugging pillows that serve as a study and protective booms for reinforcement assembly and chimney auxiliary equipment, with one after the reinforcement broken chimney parts are moved to another broken chimney section. ia po the end of the reinforcement is dismantled with them auxiliary technical equipment needed for reinforcement. Reinforcement launch is preferably carried out by draining the backfill granulated crushed material through a discharge opening at chimney day.

Description

The present invention provides a method for reinforcing mining chambers, after full-profile drilling, which is to be used for ventilators, gravity conveying, other material transport, ditching routes, escape routes and technical equipment.

At present, it is not possible to reinforce fully-drilled mine chimneys if these pass through geological-tectonic zones of low-strength rocks, which are smothered and put the chimney out of use. Until now, the classical methods of washing cannot be applied.

These shortcomings are remedied by the method of reinforcing the mine chimneys after full-profile drilling and after detecting the positions of low-cohesive rocks, consisting, for example, of steel-segmented rings or bolts and gravel or a combination thereof, according to the invention. inflatable pillows, which serve as work and protective posts during the installation of reinforcement and auxiliary chimney technical equipment, after which the reinforcement of one broken chimney part is moved to the next broken chimney part and after the reinforcement is finished, the auxiliary technical equipment necessary for reinforcement is removed. The lowering of the reinforcement is preferably carried out by discharging granulated grit backfill through the discharge opening at the bottom of the chimney.

The applied method of full-profile drilling of mine chimneys significantly reduces chimney construction time, relieves strenuous and dangerous mine work, improves economic parameters and allows reinforcements that hitherto have not been possible in these chimneys.

The attached drawings show the reinforcement of the chimneys with various types of reinforcement and methods of reinforcing the chimneys, where Figure 1 shows a top view of the chimney top-down using a steel-segment reinforcement and granulated pulp in the chimney as a temporary reinforcement of the chimney. Figure 2 is a top view of the chimney reinforcement top-down, using a bolt reinforcement with a metal sheet, granulated chippings in the chimney as a temporary chimney reinforcement and an inflatable cushion from which the reinforcement is converted.

Figure 3 is a front elevational view of the chimney reinforcement from bottom to top using a steel-segment reinforcement.

Figure 4 is a front elevational view of the chimney reinforcement from bottom to top with bolt reinforcement with expanded metal.

Figure 5 shows the chimney reinforcement from top to bottom with a steel-segmented reinforcement interrupted at different chimney depths, conveyed by granulated grit in the chimney.

After drilling the chimney, which passes through the layers of low-maintenance rocks, we will examine the walls of the chimney by the photographic method according to the author's certificate, no. 224 872 or other similar method without the need for workers to enter the open space of the chimney. The produced documentation is the basis for the choice of the technology of reinforcing the small-cohesive walls in the chimney.

The proposed technology is variable and consists of two basic variants, namely the reinforcement of the chimney from the bottom up, method no. 1 and top to bottom, method no. 2 or combinations thereof. The reinforcement material is selected according to the failure state of the chimney walls and the function of the chimney. The universal reinforcing material is a steel-reinforced reinforcement of modular character, bolt reinforcement in comination with expanded concrete, precast concrete, cast cast concrete.

Method No. 1

This method is the most widely used in mining. The construction of the reinforcement is carried out from the inside of the chimney body successively, modular from bottom to top, from the base of the chimney 10, which is usually located in the ceiling or in the side of the horizontal mining work, fig. 3. Actually, the reinforcement body 7 is mounted on the fifth chimney 10. Figures 3 and 4 illustrate the procedures of this method using two types of reinforcing material. Workers stand on the metal rest area 8, which is provided with an opening part serving to transport the material, entry and exit from the rest area. In the chimney, in which we make reinforcement and build a provisionally creeping compartment 6 of 1 'light metal ladders and demountable rest stops 8, suspended either on the actually reinforcement body 7, respectively. by means of bolts into the walls of the chimney; During all work in the chimney, before entry to exit, the worker is protected by a protective seat, suspended on safety ropes, against sudden falling out, eg. from a ladder and the like. Every 15 to 25 m (height), a rest area 8 is made provisionally, in Figures 3, 4 and 5.

Protective pillar 5 of inflatable pillows, FIG. 3 and 4, it is provided with a metal conical roof 4 at the top. The roof also serves as a curtain of a protective oval, by means of which lifting or lowering is carried out. The protective bar 5 is cylindrical in shape. It is inflated to a pressure of 10 to 20 kPa using compressed air through the timing battery. The compressed air is led to the inflatable ipov through the air hose 2, FIG. 3 and 4. The inflatable protective bar 5 is conveyed to the place of use by means of a steel cable and pulley 3; The inflatable protective deck 5 is composed of one, two or more cushions and a support device 4.

Sposob č. 2

Reinforcement in this way is carried out in the opposite, non-traditional top-down. The technology shown in Figures 1 and 2 also changes according to the choice of reinforcing material.

Reinforcement of steel-segmented rings is made as follows:

The drilled chimney is filled with dry granulated pulp 15 with a chimney set, FIG. 1 and 2, in which there is a good assumption of flow at discharge - sampling. The chimney fills near the recess. Place a steel-reinforced reinforcement 7, provided with a supporting flange 14 on the bottom, on the filled material, fig. 1. Fasten the guides 13 to the first ring, fig. 1, guaranteeing a smooth reinforcement of the reinforcement along the chimney wall. At the same time, the guides 13 also protect the connecting elements of the reinforcement kit from damage. After making two superimposed rings, we weld between them the prescribed quality and length and take the granulated grit from the chimney by the necessary amount to set the reinforcement to the necessary depth. The granulated material is collected by discharge from the chimney through the chimney closure, resp. in another suitable way. This method of assembly of reinforcement and collection of granulated crumb is repeated until we have reinforcement made for the required chimney height. Each tenth of the rings are provided with guides 13, fig. 1. Protect the chimney reinforcement body against falling of persons and objects with a metal grate 12, fig. 1, which is still suspended above the chimney. The reinforcement thus produced creates a self-supporting body which is resistant to external and internal pressures. After the entire length of the reinforcement has been made, the anchorage of the reinforcement body is performed on Friday 10, FIG. 5 and the supporting flange of the ring 14 is removed, FIG. 3 and 5, located on the lower edge of the first ring. After the reinforcement body 7 has been fitted, the free space of the annular space between the chimney wall and the reinforcement body can be filled with a suitable filler material, e.g. concrete mixture. When making the reinforcement only in a part of the chimney, the procedure is shown in FIG. 5th

After lowering the reinforcement to the required depth of the chimney under the broken zone of the walls of the chimney, make the fifth reinforcement 10, fig. 5. By means of the temporary cut-off section 6 and the rest area 8, the anchoring of the first ring against the walls of the chimney is carried out by bolts and heels through the handling openings in the reinforcement. After anchoring, we dispose of the support flange 14 and the provisionally cladding section 6, fig. 1 and 5. The assembly of the temporary cut-off section between the individual parts of the reinforcement is made from the inflatable working platform 5 in the picture 5.

The bolt reinforcement with expanded metal sheeting is shown in FIG. 2 and we do it as follows:

After removing - discharging the granulated debris from the chimney at the necessary depth, lower the inflatable working platform 5 into the chimney, fig. 2 and from there we carry out the bolting of the chimney walls and storage of the expanded metal. At the same time, we create a temporary work with the procedure temporary, respectively permanent climbing department with removable, respectively. fixed rest stops. This reinforcement can also be made intermittently where it is needed, while being combined with another reinforcement.

The technology allows a combination of different reinforcements either in a continuous or intermittent sequence, as well as a combination of method no. 2 and method no. First

SUBJECT

Claims (3)

252706 5 Process No. 2 Reinforcement in this manner is a convertible, unconventional top-down. According to the choice of reinforcing material, the technology shown in FIGS. 1 and 2 also varies. The steel reinforcement, segmented rings, is constructed as follows: A drilled chimney with a sanitary napkin 15, FIGS. 1 and 2, in which is a good prerequisite for the drainage flow. The chimney fills close to the recess. A steel-reinforced reinforcement 7 is provided on the material to be drained, provided with a lower flange 14 on the bottom, FIG. 1. Fasten the guides 13, Fig. 1 to the first skirt, ensuring a smooth skirting of the chimney wall. At the same time, the guides 13 also protect the connecting elements of the kit from being damaged by damage. After making two self-assembled rings, between the welds of the prescribed quality and length and the removal of the granulated grit from the chimney, we need the necessary amount to settle the reinforcement of the needles. We collect the granulated grit from the chimney through the chimney cap or the chimney. by other suitable means. This method of mounting the reinforcement and removing the granulated pulp is repeated until we have the reinforcement made for the necessary chimney height. Each plate is provided with guides 13, fig. 1. The chimney body cross-section protects the oscillation of objects and objects with a metal grate 12; 1, which is still hung over the chimney. Thus, the reinforcement formed will form a self-supporting body, resistant to external and internal pressures. After the entire length (height) of the stiffener has been made, anchoring of the stiffening body is carried out on Friday 10, Fig. 5 and the abutment flange 14, Figs. After mounting the body reinforcement 7, the filling of the free space of the annular ring between the chimney wall and the reinforcement body can be carried out with a suitable filling material, e.g. a concrete mixture. When the reinforcement is formed only in the chimney part, the procedure shown in Fig. 5. After the reinforcement has been lowered into the necessary hollow chamber under the broken wall of the chimney, we will make the fifth reinforcement 10, Fig. 5. By means of a makeshift climbing compartment 6 and a rest area 8, the anchoring of the prong is carried out by the bolts and pockets through the openings in the reinforcement. The anchoring flange 14 is disposed of and the aperture compartment 6, Figs. 1 and 5 is disposed of. The assembly of the provisional climbing compartment between individual reinforcement parts is made from the inflatable work platform 5 in Fig. 5. The bolt reinforcement is shown in Fig. : After removing - draining the granulated chimney crusher in the required depth, lower the inflatable working platform 5, Fig. At the same time we create a washing machine provisionally, resectively permanent climbing department with disassembled, resp. fixed landings. It is also possible to fabricate the reinforcement where it is needed and combine with another reinforcement. The technology allows the combination of different reinforcements either in continuous sequence or interrupted, as well as in combination of process no. 1. A method of reinforcing mining chimneys with a profile-bore drilling and after detecting the positions of the retaining rocks consisting, for example, of steel-segmented rings or bolts, or a combination thereof, characterized in that an inflatable Christmas tree is used in the drilled stone to serve and protect the installation during the assembly. the reinforcement and the auxiliary technical equipment of the chimney, whereby after the reinforcement of the one broken chimney part, these are disposed to a further damaged chimney part and the auxiliary equipment necessary for reinforcement is removed by the end of the reinforcement. 2. A stiffening method made of steel-reinforced rings according to claim 1, characterized in that the lowering of the rings is effected by discharging the backfill of the chimney formed by the granulated grit through the discharge opening at the bottom of the chimney. 3 sheets of drawings