RU2801989C1 - Method for the development of mineral deposits by an underground method using tunnel-boring mechanized complexes - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: invention relates to the development of deposits of ores of ferrous, non-ferrous metals and mining and chemical raw materials, as well as kimberlite pipes by an underground method in predominantly hard rocks. The method for developing mineral deposits by underground method using a mechanized tunnel-boring complex includes the installation of a tunnel-boring complex in an installation chamber, mechanical destruction of the rock in the tunnel and its transportation to the surface in two stages. The second stage is carried out using the main conveyor. The passage of the tunnel-boring complex of a given route and subsequent filling of the mined-out space with backfill materials are monitored. As a tunnel-boring mechanized complex, a gripper tunnel-boring mechanized complex with a rotary actuator is used. Penetrations for the development of minerals are carried out along tunnels parallel to each other, originating at the exit from the installation chamber. The first stage of transporting the destroyed rock is carried out using a conveyor built into the tunnel boring complex. When the tunnel-boring complex reaches a predetermined point in the tunnel created by it, it is returned to the exit from the mounting chamber for further drilling in the next tunnel. When the tunnelling complex passes through the tunnel, the deviation of its angular position in the horizontal and vertical planes and the angular velocity of such deviations, as well as the linear deviations and the rate of their change from the given path of movement in the tunnel, are determined, a smooth curve is formed as a function of the obtained parameters of the angular and linear deviations and returned by trajectory formed by a smooth curve of the tunnel-boring complex to a given route. As a rotary actuator, a round-section rotor with rock-cutting elements in the form of conical cutters with hard-alloy inserts is used.

EFFECT: increasing the accuracy of the tunnel-boring mechanized complex following a given route, reducing the percentage of dilution of minerals, increasing the efficiency of the method both by developing areas of the ore body with a high content of mined minerals, and by ensuring the continuity of the mining process without dismantling the tunnel-boring mechanized complex.

2 cl, 5 dwg

Description

The field of technology.

The invention relates to the field of mining, in particular to the development of deposits of ores of ferrous, non-ferrous metals and mining and chemical raw materials, as well as kimberlite pipes, by an underground method in predominantly hard rocks, to conduct clearing operations in a mechanized way using tunneling shields (tunnel-boring mechanized complexes " TPMK") gripper type with a rotary executive body.

The level of technology.

The development of deposits is carried out by open pit and underground methods, while in many cases the transition from open pit mining to underground is inevitable. With an increase in the depth of work, the mining and geological conditions of development worsen; the temperature of the host rocks increases, gas manifestations intensify; the conditions for ventilation of underground workings are complicated; the content of useful components in the ore often decreases. Upon receipt of the required amount of metals and mining and chemical raw materials from poorer ores, underground mining is carried out in difficult conditions and in relation to a much larger volume of rock mass than from deposits that have been exploited or have long been worked out.

Underground mining of mineral deposits is a set of works on the opening, preparation and mining of a deposit.

Opening is the carrying out of mine workings that open access to ore deposits for subsequent preparation and excavation of reserves in a mine field (development). The opening of mines, depending on the type of deposits and the conditions of their occurrence, can be carried out by vertical ore-lifting shafts or inclined ore-extracting shafts with vertical ventilation shafts and inclined or vertical auxiliary shafts, or adits in combination with capital ore passes and blind auxiliary ventilation shafts.

Deposit preparation is the creation of a network of mine workings, by which the exposed part of the deposit is divided for development into independent excavation areas - floors, blocks, panels.

The preparation of steeply dipping and obliquely dipping deposits for stoping excavation is reduced to the division of ore deposits vertically into floors by workings of the main ore-producing and exploitation horizons with transport drifts and orts, and the subsequent division of floors into excavation areas. The preparation of horizontal and flat deposits consists in dividing the mine field by development workings (main and panel drifts) into panels and pillars.

Mineral extraction is carried out in stopes, using various methods of its destruction by combines, in particular, such as MR 360 and P 110-01, self-propelled drilling rigs of the Sandvik DD311 type, and manual hammers PP-80. In the underground mining of ore deposits in hard rocks, a drilling and blasting method is used to destroy the ore body.

In most mines of ferrous and non-ferrous metallurgy and phosphate raw materials, transportation of broken ore from working faces and from capital ore passes through workings of operational and ore-lifting horizons to underground crushing and transfer complexes and receiving hoppers of ore-extracting shafts is carried out by electric locomotive trains. As a rule, trolley electric locomotives, or self-propelled cars and conveyor installations are used.

On the surface, the ore additionally undergoes a crushing process.

Thus, during the cleaning extraction of ore, the following are performed:

- ore breaking - the process of separating the ore from the array in the block in an explosive way with its simultaneous crushing into pieces.

- secondary crushing - to meet the conditions of the technological process, according to which the broken ore must have pieces of a certain size.

- release and delivery of ore - the movement of the ore mass from the places of breaking to the transport workings of the block.

- rock pressure control - natural maintenance of the stope, collapse of host rocks, artificial maintenance of the stope.

At the Yuzhnaya mine of the Goroblagodatsky Mining Administration, transportation and delivery of ore at operational levels is carried out by self-propelled loading and hauling machines, at concentration levels - from capital ore passes to receiving hoppers of crushing and transfer complexes - by electric trains of blind wagons with a capacity of 8 m ³ .

In Kryvbas, powerful crushing and transfer complexes with accumulating ore-bunkers are being built near the shafts. Underground capital ore passes adjoin the receiving bunkers of these complexes.

Thus, in the underground mining of ore deposits, there is no condition for simultaneous and independent mining, transportation of ore and preparatory work in the production floor, as well as the efficiency of using self-propelled equipment in underground work.

Until the middle of the 20th century, the most effective way to develop hard and semi-rock rocks was their blasting. The explosive method is applicable in rocks of various strengths and provides high penetration rates [1].

However, the explosive mining method has a number of significant drawbacks: first of all, it is the use of manual labor in hazardous production conditions, the need for ventilation after the explosion, which delays the process of obtaining minerals suitable for processing, the inability to obtain pieces of minerals of the same size, and other disadvantages.

In the middle of the 19th century, mechanized tunnel-boring complexes (hereinafter - TPMK) were created. In the USSR, the development of such complexes has been carried out since the late 70s. XX century.

So, from the prior art, in particular, tunnel-boring complexes are known:

- Tunnel-boring complex containing a tunneling shield [2] with a rotary executive body and a spacer shield. The rotary actuator is equipped with a rock cutting tool (cutters) and is mounted on a rotating ring of a large-diameter angular contact bearing, the fixed ring of which is fixed in the tunneling shield.

- Tunneling complex [3], the design of which allows to provide a free passage for maintenance of the block layer during the installation of the support elements, tension of the belt in a given mode, the movement of the belt symmetrically to the longitudinal axis of the conveyor, and also reduces the likelihood of vibrations of the belt during the operation of the shield conveyor, due to which the time for installation of the tunnel lining is reduced, as well as for the adjustment and repair of the conveyor belt, the productivity of the complex is increased.

There is a known method of carrying out mine workings in the underground mining of minerals using a tunneling machine with a rotary executive body [4], consisting of a drill, a bit and a cross, when moving it to the face with the help of caterpillar undercarriages, the bit and the drill beat off the ore from the rock mass, which pours onto the soil, during the rotation of the cross, the buckets move along the diameter of the executive body, alternately touching the soil and penetrating into the mountain loose mass lying on it, being filled with it and moving along the trajectory when reaching its upper points, they pour the rock mass onto the conveyor.

The executive bodies of the TPMK of the above analogues are predominantly rotary, but they have the following common drawback: there is no control system for the current angular position of the complex and its location relative to the design route, which does not allow achieving the efficiency of mining at the level potentially incorporated in the design of the mechanized complex. In addition, the design of the TPMK in none of the analogues solves the problem of its return after the completion of the first tunnel (after exiting the mounting chamber) for driving subsequent workings. The design of the TPMC in the given analogues ensures their advancement in the tunnels by repulsion from the lining using a jacking system, while the reinforced concrete block lining, erected by the tunnel boring complex during the drilling of each of the tunnels, is an obstacle to its return to the original design point.

Known from the prior art is an automatic control system for a collector tunneling shield [5], which contains an optical laser axis direction generator, the beam of which passes through a beam deflection unit, a diaphragm, and enters the matrices of a photoelectric receiving device associated with a control unit for the actuators of the tunneling shield, one of whose inputs are connected to the output of the block for measuring the angle of roll, the input of the beam deflection block is connected to the block for setting the angle of rotation.

The disadvantage of the system is that it lacks the means for determining the angular velocity, linear displacement and linear velocity, and the control unit does not allow to take into account the angular velocity, linear displacement and linear velocity when generating the control signal. As a result, the system has a low accuracy in determining the location of the TBM and managing it.

A device is known for determining the spatial coordinates of the tunneling shield [6], containing an optical direction indicator (laser transceiver) installed in the starting shaft, a photodetector unit (receiving phototarget), an optical transmitter control unit fixed on the tunneling shield, a signal conditioning unit, a microcontroller, decoder, matrix background polling module, bus drivers, interrupt signal generation unit, commutator, electric drives, optical transmitter control unit, optical transmitter, photodetector.

The disadvantage of this device is the inability to determine the coordinates of the tunneling shield during curvilinear driving by punching the lining.

There is a known method for controlling the shield of a tunneling complex [7], according to which the shield is controlled in two planes by means of vertical and horizontal control systems, while using measuring equipment, the angles of inclination of the executive body relative to the vertical and horizontal planes are determined, then signals are generated at the above angles slope and feed them to the control unit, where they are compared with the specified one, after which, based on the mismatch signals, a relay control law for the executive body of the tunneling complex is formed, for the formation of which the signals are additionally determined by the rate of change of the angle of inclination relative to the vertical and horizontal planes, linear displacements in the vertical and horizontal planes, the rate of change of linear displacement in the vertical and horizontal planes and feed them to the control unit, made in the form of a control unit for four coordinates.

The disadvantage of the known method is the low accuracy due to the use of the relay control law, the inability to determine the coordinates of the tunneling shield during curvilinear driving by punching through the lining due to the lack of technical ability to provide direct visibility between the optical direction indicator and the photoelectric receiver when the optical direction indicator is fixed.

The essence of the invention.

The consequence of these shortcomings of analogs is a limited scope due to the impossibility of using in development, where the completion of the development of each of the tunnels requires the return of the TBM to the starting point, the low accuracy of following the project route, the high percentage of dilution of the extracted minerals, which reduces the productivity of the TBM, and taking into account significant costs for the creation of TPMC, reduces the efficiency of their use.

The technical result, to which the claimed invention is directed, is to increase the accuracy of the TPMC following a given route, to reduce the percentage of dilution of minerals, to increase the efficiency of the method both by developing areas of the ore body with a high content of mined minerals, and by ensuring the continuity of the development process minerals without dismantling the TPMK, as well as reducing the time spent on its implementation.

In the claimed method, the disadvantages associated with the low accuracy of following a given route and the associated high percentage of dilution of minerals raised to the surface and the low efficiency of using TPMC are overcome by using a high-precision navigation system and generating control signals proportional to deviations of the current angular position and linear location from the calculated, angular and linear velocities of such deviations, formed on the basis of the route of each sinking through the places of occurrence of ores with a high percentage of the content of mined minerals. In addition, each TPMC orebody runs in parallel tunnels spaced at a minimum distance from each other, thereby reducing the chance of missing mineral-rich areas of the orebody being mined, which in turn increases the efficiency of the mining method.

In this case, the minimum distance between parallel tunnels is selected based on the reduction in the probability of damage to the walls of the adjacent tunnel.

Since mining is carried out in hard rocks, the tunnels are fastened with anchors, respectively, the distance between the tunnels is significant, especially considering the weight of the TBM and the power of its executive body.

Ensuring the possibility of developing each subsequent channel parallel to the previous one with the beginning in the same place is achieved through the use of grip TBMs capable of return movement using grip mechanisms.

As for the expansion of the functionality of the method for the development of minerals of the ore body, in which the sinking of each next tunnel is carried out from the same design point, as well as ensuring the continuity of the process of mining without dismantling the TBM, these advantages are achieved through the development of minerals with the help of gripper TPMK with a rotary executive body.

Implementation of the invention.

The claimed method is implemented using gripper TPMK with rotary actuators.

The use of TBMs with rotary executive bodies in the extraction of minerals makes it possible to ensure the safety of sinkers, since they work under the protection of its shell; allows for the development of minerals at a high speed, reducing the time of driving long workings; to develop breeds of any strength according to the scale of prof. Protodyakonova; allows to carry out the development of the bottom for the full section of the rotor; the crushing chamber TPMK provides the minimum size of the broken ore fraction with a rotary executive body, which makes it possible to increase the speed of its transportation to the surface, refusing additional crushing chambers near the shaft.

Ore bodies in hard rocks are generally not flooded, so there is no need to use a closed-type TBM (ie with a soil load, or a hydraulic load). For the development of hard rocks, the optimal design is a TPMK with a rotary executive body with a plurality of cutters installed on it. The rotation of the rotor is carried out by the drive over the entire face plane. Each cone passes precisely along its own trajectory, without repeating the cutting line of other cones, and also due to the high pressure force of pressing the cones to the rock, created by the jacking system during repulsion (gripper system), the rock is cut and split.

When driving in hard stable rocks, temporary lining is erected: anchor with mesh or sprayed concrete, since the main task of lining construction is to comply with safety regulations and prevent weakening of the array.

Since the support must be erected in a working, the erector and the drilling rig should be installed in the shield structure immediately after the shield shell, and the sprayed concrete rig should be mounted behind them.

To implement the claimed method, it is necessary to use TPMK with a rotary executive body, as well as with a gripper system.

The gripper system is not only necessary for spreading into the rock, but also for controlling the direction of the shield movement, only the gripper TPMK has the ability to move in the opposite direction. In addition, the presence of a gripper system allows you to take a larger turning radius of the TPMK than that of shields with a jacking system in the head.

As an example of grip TBMCs with rotary actuators, which can be used to implement all the actions of the claimed method with the achievement of the declared technical result, grip TBMCs manufactured by Robbins (USA) [8], [9] are considered below.

In FIG. 1 and FIG. 2 shows an image of a gripper TPMK with a rotary executive body manufactured by Robbins.

Graphic materials illustrating the implementation of the claimed method are presented in figures 1, 2, 3, 4 and 5.

In FIG. 1 adopted the following designations:

1 - rotary executive body with a rock cutting tool (cutters)

2 - rock cutting tool (frontal and contour cutters)

3 - buckets

4 - outer shell (shell) TPMK to maintain the soil;

5 - erector

6 - drilling machine for installing anchors

7 - main beam

8 - hydraulic jacks

9 - grippers (spacers)

In FIG. 2, the following designations are adopted:

10 - supporting legs.

In FIG. 3 adopted the following designations:

11 - first working out

12 - second working

13- concrete lintel

14 - cut area of adjacent working

15 - rotary executive body of the TPMK with a rock cutting tool (cutters)

In FIG. 4 adopted the following designations:

16 - workings passing through the ore body

17 - concrete lintels

18 - ore body

19 - off-balance reserves or waste rock

20 - rotary executive body of the TPMK with a rock cutting tool (cutters)

In FIG. 5 adopted the following designations:

21 - mounting chamber

22 - design point

23 - first working out

24 - subsequent workings along the ore body

25 - ore body

26 - off-balance reserves or waste rock

The difference in designs of gripper TBMs with rotary actuators shown in Fig. 1 and 2 is that the Robbins TPMC in FIG. 2, the shield shell consists of individual metal elements (shells), which, using a jacking system, expand the head of the TPMK, thereby expanding into the rock. This function reduces the vibration of the TBM during rotor operation, and also reduces the displacement of the rock mass. However, from the point of view of the possibility of using any of the Robbins gripper TPMCs for the implementation of the claimed method, this difference is insignificant.

The principle of operation of both gripper TBMs is the same; in both cases, TBMs have a rotary actuator with cutters, belt conveyors, grippers for moving the TBM in the tunnel, as well as the elements necessary for the construction of the support.

In addition to the difference in TPMC designs shown in Figs. 1 and FIG. 2, which was mentioned above, the images of TPMC in figures 1 and 2 differ in that in Fig. 2, the TPMC is shown in a position with extended supporting legs 10, designed to allow movement of the grippers (item 9 in Fig. 1).

The inner belt conveyor in Fig. 1 and 2 is missing, but it clearly follows from the description that the design of the Gripper TPMK with a rotary actuator includes an internal belt conveyor (the text "Buckets in the rotating cutterhead scoop up and deposit the muck onto a belt conveyor inside the main beam.", i.e. e. "The buckets in the rotating cutting head scoop up and place the rock on a conveyor belt inside the main beam.").

Operation of the Robbins Gripper TPMC shown in FIG. 1 is carried out as follows.

When driving using a gripper TPMK, its rotary executive body 1, equipped with rock cutting tools (cutters) 2, is pressed against the bottom of the tunnel with a pressure of tens of tons per cutter. Due to the rotation of the cutters 2, separate pieces of soil break off from the rock mass. The water jets help to cool the cutting tool and reduce dust generation (nozzles not shown in FIG. 1). Buckets 3 mounted on the rotor take the crushed soil and reload it behind the rotor 1, when the rotor rotates, the soil passes through special channels to the center of the tunneling machine and through the funnel enters the TPMK belt conveyor (not shown in Fig. 1), then it is issued from the tunnel with the help of tunnel conveyor or special vehicles (the means of issuing soil from the tunnel in Fig. 1 are not shown).

Before the start of each cutting cycle, grip TBMs are fixed in the tunnel using hydraulic jacks 8 that extend to the sides. Thrust plates are attached to the jacks - the so-called grippers 9, which are the main distinguishing element in this tunneling technology, and they also gave the name to this type of TBM. Then the driving jacks, which can now rest against the gripper assembly, fixed by surprise in the tunnel, press the rotating rotor 1 to the bottom. The tray (lower) part of the shield also serves as a sliding support for the TPMK. Protection of the TPMK from a possible fall of soil from above is provided by the upper part of the shield, often additionally equipped with plates going towards the tail of the shield, forming a semblance of a roof (shield skirt). After the cutting cycle is completed, the penetration is interrupted and the gripper assembly moves forward.

Ore mining is carried out during the development of the face, followed by the movement of the TBM along the ore body (position 25 in Fig. 5). The TPMK is bursting into the rock by a gripper system located on the main beam 7 of the TPMK, while in parallel in the head part of the shield, the rotary executive body 1 rotates. located on the TPMK rotor to the ore for their introduction into it and destruction. In the face, the crushed pieces of ore are harvested using buckets 3, followed by transportation along the internal belt conveyor.

After the entry is completed, with the help of a special jacking system, the head shell is expanded, i.e. side retractable shields are pressed to the ground for stabilization. There are special holes in the skirt of the TPMK that allow, if necessary, to install metal rods (cassettes) using an erector 5. The drilling rig performs direct drilling under the anchor lining. For safe movement and mining of ore, exploratory drilling is performed by machine 6.

To perform the subsequent entry, support legs 10 are extended in the back of the TPMK to move the grippers. The supporting legs allow the TPMC to change the slope of the ore excavation.

In highly fractured rocks, the supports are erected in an annular shape, since when driving tunnels of circular cross section, it is more technologically advanced to erect rigid rings, assembled segment by segment using a support installer with connecting individual segments with overlays, and bursting them at the roof.

As mentioned above, to implement the claimed method, any of the indicated gripper TBMCs with a rotary executive body can be used. The marked difference in the functioning of the TPMC shown in Figs. 1, 2 for the implementation of the claimed method with the achievement of the claimed technical effect is insignificant.

The extraction of ore with the help of expensive TBMs is economically feasible if the development of the ore body / ore deposit is carried out with the removal of ore with the maximum percentage of the content of the target mineral to the surface. This problem can be solved by driving routes parallel to each other and for each ore body emanating from the same place.

The need to drill each next tunnel from the same starting point is explained by the following considerations.

After the TPMC is mounted, it starts mining, moving forward, thereby forming the first tunnel and extracting pieces of rock containing minerals. When the predetermined length of the first tunnel is reached, the TBM returns to the desired starting position for a second pass through the mineral ore body. The TBM is positioned to create a second tunnel parallel to the first tunnel. The parallel portion of the second tunnel is located at a sufficient distance from the first tunnel so that the wall between the first tunnel and the second tunnel maintains its integrity. These steps can be repeated to extract minerals from multiple tunnels in the ore body.

After driving the first generation 11 TPMK with a rotary executive body with a rock-cutting tool 15, a concrete jumper 13 is erected for 2/3 or more of the section. After gaining strength of the mixture, which allows to carry out the sinking of the subsequent development 12, using the gripper system, which ensures the rotation (deflecting) of the TPMK complex by the required value, cutting into the adjacent development (the area of the cut of the adjacent development - position 14 in Fig. 3).

The mixture formula for concrete lintels and backfills is selected taking into account the sequence and schedule of work, economic feasibility and other factors.

When implementing the claimed method using a TPMK with a rotary executive body with a rock cutting tool (cone cutter) 20, as illustrated in Fig. 4, stopes are made with a notch in adjacent workings, followed by their laying with a concrete mixture sprayed concrete with hardening accelerators) with temporary support that does not require a long time of installation work.

The number of rows of adjacent workings 16 is determined based on the shape and thickness of the ore body 18.

After the TPMC is mounted in the mounting chamber 21, it extends to the design point 22, from which it performs the penetration of the first working 23 along the ore body 25, while the ore is being mined simultaneously. When the design value of the working (the end of the ore body) is reached, the TPMK with the help of a gripper system moves in the opposite direction to the initial design point 22 for further penetrations, during which subsequent workings 24 are carried out along the ore body 25. The mining process is illustrated in Fig. 5, which shows the trajectories of penetrations.

The gripper system, as already mentioned, is necessary not only for spreading into the rock, but also for regulating the direction of movement of the shield, only the gripper TPMK has the ability to move in the opposite direction. In addition, the presence of a gripper system allows you to take a larger turning radius of the TPMK than that of shields repelled from the support erected behind them.

Since the rock is mechanically crushed, secondary crushing is not required and the broken rock is well suited for conveying.

The control signals for gripper TPMK with a rotary executive body are formed as follows.

For constant and continuous correction of unwanted displacements of the TBM, thereby preventing its deviation from the designed axis of the tunnel, it is possible only by constantly monitoring its position.

Deviations from a given path are influenced by many different factors: soil structures (in our case, rocky soil) path radii. A centrifugal force acts on the TPMC at the turn, the magnitude of which is proportional to the mass of the TPMC. Accordingly, on routes with small radii, course corrections should be carried out more often than on straight sections.

As a coordinate system in which the position of the TPMC is determined, it is preferable to choose an inertial coordinate system, since all measurements, all basic geodetic work, the coordinates of the tunnel route, laser consoles in the initial shaft, etc. are carried out in it.

The starting points for determining the position of the TBM are two known points in the global coordinate system (Y, X, Z). At one point there is a theodolite with a laser. There must be a direct line of sight between this point and the Electronic Laser Target (hereinafter referred to as the ELS).

According to the second known point (anchor point), the theodolite is oriented. Due to this, the directional angle is known. The laser beam is directed to the EBW. EBW can determine the angle of incidence of the laser beam to the EBW plane. Based on the measured angle of refraction between the EBW reference point and the angle of incidence, the TPMC yaw angle with respect to the given axis can be calculated. Roll and pitch are measured directly by the inclinometer built into the ELS. These data are transmitted at a given frequency to the control signal generation unit, which generates for each current set of angular and linear coordinates and their derivatives (angular and linear velocities, respectively) a smooth curve that performs the function of a transition trajectory along which the TPMC must return to a given track.

The distance between the theodolite and the ELS is determined either directly by the theodolite, or by means of the average extension of the jacks and the summation of the length of the erected support. From this distance, the position (picketage) of the TPMK on a given track is obtained. By the interaction of the collected data, it is possible to determine the exact position of the TBMC by calculations.

The use in the development of deposits of ores of ferrous, non-ferrous metals and mining and chemical raw materials, as well as kimberlite pipes, by an underground method in predominantly hard rocks, and in the conduct of clearing operations in a mechanized way as a means for developing deposits of gripper tunnel-boring mechanized complexes with rotary executive bodies, equipped with a system navigation and a device for generating a control signal for working out deviations in the angular and linear position of the tunneling complex, allows you to achieve the declared technical result. The claimed invention meets the conditions of patentability established by law: industrial applicability, novelty, inventive step.

List of sources

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Claims (2)

1. A method for the development of mineral deposits by an underground method using a mechanized tunnel-boring complex, including the installation of a tunnel-boring complex in an installation chamber, mechanical destruction of the rock in the tunnel and its transportation to the surface in two stages, the second of which is carried out using a main conveyor, control of the passage of the tunnel-boring complex complex of a given route, subsequent filling of the worked-out space with stowing materials, characterized in that a gripper tunnel-boring mechanized complex with a rotary executive body is used as a tunnel-boring mechanized complex; the first stage of transporting the destroyed rock is carried out using a conveyor built into the tunneling complex, when the tunneling complex reaches a given point in the tunnel created by it, it is returned to the exit from the installation chamber for further drilling in the next tunnel, when the tunneling complex passes the tunnel, the deviation of its angular position is determined in the horizontal and vertical planes and the angular velocity of such deviations, as well as linear deviations and the rate of their change from the given route in the tunnel, form a smooth curve as a function of the obtained parameters of the angular and linear deviations and return the tunneling complex along the trajectory of the formed smooth curve to the given route. 2. The method according to claim 1, characterized in that a rotor of circular cross section with rock-cutting elements in the form of conical cutters with hard-alloy inserts is used as a rotary executive body.