A method for crossing faults in coal and gas outburst mine working faces

Abstract

The present invention belongs to the field of rock burst and gas prevention and control in coal mining, and specifically relates to a method for a coal and gas outburst mine working face to cross a fault. The present invention divides the coal mining working face into a first mining area, a fault protection coal pillar, and a second mining area. Coal and gas outburst control work is only carried out in the mining area, and the fault protection coal pillar maintains its original stability as much as possible. When the working face is moved, the hydraulic support tends to move the upper and lower parts at the same time, the scraper conveyor moves at the same time as the hydraulic support, and the hydraulic support does not need to be disassembled for moving. The transport vehicle, mine car track, second auxiliary track, and winch are used to transport the hydraulic support. The auxiliary lane, first auxiliary track, scraper conveyor's own track, transport trolley, and winch are used to transport the scraper conveyor, wherein the winch is used to drag and release in the drop section. The present invention can greatly reduce the moving cycle and ensure the safety of the working face during relocation.

Description

Technical Field

[0001] The invention belongs to the field of rock burst and gas prevention in coal mining, and particularly relates to a method for crossing a fault at a working face in a coal and gas outburst mine. Background Art

[0002] A fault is a geological structure in which the earth's crust breaks under stress, causing displacement of rock blocks along both sides of the fault surface. It is a geological structure commonly encountered during coal mining. Generally, when the fault distance is small, it can be ignored during coal seam mining; when the fault distance is slightly larger, it can be passed directly by taking certain reinforcement measures; however, when the fault distance is large, the risk of directly pushing through the fault is very high, especially in coal and gas outburst mines; for this, a relatively conservative skipping mining method is generally adopted to skip the fault, but the working face needs to be moved during skipping mining. Since there are many coal mining-related equipment and the moving time is long, it will affect coal mining production and it is difficult to meet the mine's production needs. Therefore, how to quickly move the working face in mines with coal and gas outburst mines has become a difficult problem that needs to be solved when the working face crosses the fault. At the same time, how to ensure smooth ventilation of the working face during the working face move and prevent gas accidents is also a focus of attention for technical personnel in this field. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention proposes a method for crossing a fault at a coal and gas outburst mine working face, comprising the following steps:

[0004] S1. Construct the transport tunnel and track tunnel along the strike to the designed location. Construct the first cut to connect the transport tunnel and track tunnel to form a coal mining face. A fault runs through the coal mining face, and a fault protection pillar is installed. This pillar divides the coal mining face from right to left along the strike into the first mining area, the fault protection pillar, and the second mining area. Construct a gas pressure relief borehole into the first mining area to extract and depressurize the coal in the first mining area.

[0005] S2. Arrange a scraper conveyor, a shearer, and a hydraulic support inside the first cut. The hydraulic support is arranged at intervals along the inclination. The scraper conveyor is arranged close to the coal wall along the inclination, and the shearer rides on the scraper conveyor.

[0006] Arrange belt conveyors in the transport lanes, and use transfer machines to connect scraper conveyors and belt conveyors;

[0007] S3. The first mining area is mined until the fault protection coal pillar is mined, and the construction is completed. The scraper conveyor, coal mining machine and hydraulic support are stopped at the closed eye;

[0008] During the mining of the first mining area, the second cutting eye of the second mining area is simultaneously constructed along the trend, and an auxiliary roadway is constructed along the strike in the middle of the fault protection coal pillar trend, and the auxiliary roadway can connect the second cutting eye and the closing eye;

[0009] S4. The belt conveyor is retracted to the left of the second cut hole, and the transfer machine is transported to the right of the belt conveyor and located to the left of the second cut hole; the shearer is transported to the track level, and the shearer is located to the left of the second cut hole;

[0010] S5. Simultaneously transport hydraulic supports from both ends of the retrieval eye to the second cut-eye, and simultaneously deploy hydraulic supports within the second cut-eye from the middle of the retrieval eye toward both ends. Hydraulic supports in the upper half of the retrieval eye are transported from the track level to the upper half of the second cut-eye. Hydraulic supports in the upper half of the retrieval eye are sequentially removed from top to bottom, and hydraulic supports are installed sequentially in the upper half of the second cut-eye from bottom to top. Hydraulic supports in the lower half of the retrieval eye are transported from the transport level to the lower half of the second cut-eye. Hydraulic supports in the lower half of the retrieval eye are sequentially removed from bottom to top, and hydraulic supports are installed sequentially in the lower half of the second cut-eye from top to bottom. The hydraulic supports are fully assembled and moved without disassembly.

[0011] While the hydraulic support is being moved, the scraper conveyor is moved in sections. In the harvesting eye, the scraper conveyor sections are transported alternately from the two ends of the inclination to the second cutting eye through the auxiliary lane. In the second cutting eye, the scraper conveyor sections are installed alternately from the middle of the inclination to the two ends.

[0012] S6. After installing the hydraulic support and scraper conveyor in the second cutting eye, move the coal mining machine onto the scraper conveyor, connect the transfer machine to the scraper conveyor, and connect the belt conveyor to the transfer machine; construct a gas pressure relief borehole in the second mining area, extract gas and relieve pressure on the coal in the second mining area; and carry out mining in the second mining area.

[0013] Preferably, a crusher is provided at the transfer machine.

[0014] Preferably, in step S2, an equipment train is arranged parallel to the belt conveyor at one end of the belt conveyor close to the transfer machine; in step S4, the equipment train is transported to the left of the second cutting eye and close to the right end of the belt conveyor.

[0015] Preferably, a mine car track is arranged in the track level tunnel; in step S4, a second auxiliary track is arranged in the transport level tunnel, between the second cutting eye and the closing eye, the specifications of the second auxiliary track are the same as the specifications of the mine car track in the track level tunnel, and a transport vehicle is used to transport the hydraulic support; the specifications of the transport vehicle are adapted to the mine car track and the second auxiliary track.

[0016] Preferably, in step S4, the coal mining machine is transported to the mine car track in the track level tunnel.

[0017] Preferably, in step S5, the transport tunnel and the track tunnel are arranged inclined along the direction between the second cutting eye and the harvesting eye, the transport vehicle runs on the second auxiliary track in the transport tunnel and on the mine car track in the track tunnel, and a winch is used to assist in dragging or releasing.

[0018] Preferably, in step S3, a first auxiliary track is arranged along the direction in the auxiliary lane, and the specifications of the first auxiliary track are the same as those of the track on the scraper conveyor. A transport trolley is used to transport the scraper conveyor sections, and the specifications of the transport trolley are compatible with the first auxiliary track and the track on the scraper conveyor.

[0019] Preferably, in step S5, when the transport trolley transports the disassembled scraper conveyor segments in the collecting eye, it rides on the undisassembled scraper conveyor and transports it to the auxiliary lane. Then the transport trolley moves to the second cutting eye through the first auxiliary track. In the second cutting eye, when the transport trolley transports the disassembled scraper conveyor segments, it rides on the installed scraper conveyor.

[0020] Preferably, in step S5, the auxiliary lane between the second cutting eye and the harvesting eye is arranged inclined along its direction, so when transporting the scraper conveyor segments, the transport vehicle walks on the first auxiliary track in the auxiliary lane and is assisted by a winch for dragging or releasing.

[0021] Preferably, in step S5, in order to avoid the hydraulic supports affecting the segmented transportation work of the scraper conveyor at the auxiliary tunnel, the hydraulic supports arranged at the auxiliary transport tunnel should be adjusted to both sides of the auxiliary transport tunnel, and the initial spacing of multiple hydraulic supports near the auxiliary transport tunnel should be reduced. Before mining in the second mining area, the multiple hydraulic supports near the auxiliary transport tunnel should be adjusted to the standard spacing.

[0022] Preferably, in step S6, before mining the second mining area, the mine car track in the track level tunnel is retracted to the second cutting position, and the first auxiliary track and the second auxiliary track are recovered.

[0023] The beneficial effects of the present invention are as follows: 1. In the method for crossing a fault in a coal and gas outburst mine, when the working face is moved, the hydraulic supports are moved simultaneously in both the upper and lower parts, the scraper conveyor is moved simultaneously with the hydraulic supports, and the hydraulic supports are moved completely without disassembly. Due to the influence of the fault, a large height difference is generated during the moving of the working face. The hydraulic supports are transported in combination with a transport vehicle, a mine car track, a second auxiliary track, and a winch. The scraper conveyor is transported in combination with an auxiliary lane, a first auxiliary track, the scraper conveyor's own track, a transport trolley, and a winch. The present invention can greatly reduce the moving cycle and ensure safety during the moving of the working face.

[0024] 2. For coal and gas outburst mining faces with faults, the present invention divides the coal mining face into the first mining area, the fault protection coal pillar and the second mining area from right to left along the strike direction. Coal and gas outburst control work is only carried out in the mining area, and the fault protection coal pillar area maintains its original stability as much as possible, so that coal resources can be recovered to the maximum extent while ensuring safety, thereby improving recovery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the planar layout of the working surface of the present invention before moving;

[0026] Figure 2 This is a schematic diagram of the plane layout of the working surface of the present invention when it is moved;

[0027] In the figure, the first mining area is 1; the fault protection coal pillar is 2; the second mining area is 3; the fault is 4; the first cutting hole is 5; the transport tunnel is 6; the track tunnel is 7; the belt conveyor is 8; the crusher is 9; the transfer machine is 10; the equipment train is 11; the scraper conveyor is 12; the coal mining machine is 13; the hydraulic support is 14; the mine car track is 15; the auxiliary tunnel is 16; the first auxiliary track is 17; the second auxiliary track is 18; the second cutting hole is 19; and the closing hole is 20. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-2 Specific embodiments of the present invention are described in detail.

[0029] The present invention proposes a method for crossing a fault at a coal and gas outburst mine working face, comprising the following steps:

[0030] S1. Construct a transport tunnel 6 and a track tunnel 7 along the strike to their designed positions, with the transport tunnel 6 located below the inclination and the track tunnel 7 located above the inclination. Construct a first cut 5 along the inclination to connect the transport tunnel 6 and the track tunnel 7, forming a coal mining face. A fault 4 runs through the coal mining face along its inclination (widthwise). Based on the geological characteristics of the fault 4, a suitable range of fault protection pillars 2 are provided. The fault protection pillars 2 divide the coal mining face from right to left along the strike into a first mining area 1, a fault protection pillar 2, and a second mining area 3. Construct a gas pressure relief borehole from the transport tunnel 6 and / or the track tunnel 7 toward the first mining area 1 to extract and depressurize the coal in the first mining area 1. The extracted gas can be recycled for power generation.

[0031] S2. Arrange a scraper conveyor 12, a shearer 13, and a hydraulic support 14 within the first cut hole 5. The hydraulic supports 14 are arranged at intervals along the inclination. The scraper conveyor 12 is arranged along the inclination close to the coal wall. The shearer 13 rides on the scraper conveyor 12. The shearer 13 and the scraper conveyor 12 operate under the protection of the hydraulic support 14. The arrangement of the scraper conveyor 12, the shearer 13, and the hydraulic support 14 is well known in the art and will not be described in detail here.

[0032] A mine car track 15 is arranged in the track tunnel 7, and the mine cars used for auxiliary transportation run on the mine car track 15; a belt conveyor 8 is arranged in the transport tunnel 6, and a transfer machine 10 is used to connect the scraper conveyor 12 and the belt conveyor 8. A crusher 9 is installed at the transfer machine 10, and an equipment train 11 is arranged parallel to the belt conveyor 8 at the end of the belt conveyor 8 near the transfer machine 10. The equipment train 11 includes a control room, an emulsion pump station, a cooling water pump station, power substation equipment, life-saving equipment, etc.

[0033] S3 along the strike of the first mining area 1 until the mining to the fault protection pillar 2 boundary, construction closed eye 20, scraper conveyor 12, shearer 13 and hydraulic support 14 stopped at the closed eye 20;

[0034] During the mining of the first mining area 1, a second cutting eye 19 of the second mining area 3 is simultaneously constructed along the trend. The second cutting eye 19 is located in the second mining area 3 on the side adjacent to the fault protection coal pillar 2. An auxiliary tunnel 16 is constructed along the strike in the middle of the trend of the fault protection coal pillar 2. The auxiliary tunnel 16 is capable of connecting the second cutting eye 19 and the closing cutting eye 20. A first auxiliary track 17 is arranged along the strike in the auxiliary tunnel 16. The specifications of the first auxiliary track 17 are the same as those of the track on the scraper conveyor 12 for the shearer 13 to ride.

[0035] S4. Retract the belt conveyor 8 to the left of the second cut hole 19. Move the crusher 9 and transfer machine 10 to the right of the belt conveyor 8 and to the left of the second cut hole 19. Move the equipment train 11 to the left of the second cut hole 19 and close to the right end of the belt conveyor 8. Arrange a second auxiliary track 18 in the transport lane 6, between the second cut hole 19 and the harvesting hole 20. The specifications of the second auxiliary track 18 are the same as those of the mine car track 15 in the track lane 7.

[0036] At the same time, the shearer 13 is transported to the mine car track 15 in the track level 7, and the shearer 13 is located to the left of the second cutting hole 19;

[0037] S5. In the closed eye 20, the hydraulic supports 14 are transported from both ends to the second cut eye 19 by transport vehicles, and in the second cut eye 19, the hydraulic supports 14 are arranged from the middle to both ends simultaneously; the hydraulic supports 14 in the upper half of the closed eye 20 are transported from the track level 7 to the upper half of the second cut eye 19, and the hydraulic supports 14 transported from the upper end of the upper half of the closed eye 20 will be transported to the lower end of the upper half of the second cut eye 19, and the hydraulic supports 14 from the lower end of the upper half of the closed eye 20 will be transported to the upper end of the upper half of the second cut eye 19, and the closed eye 20 is a hydraulic support. The hydraulic supports 14 at the upper half of the working eye 20 are transported away in sequence from top to bottom, and the hydraulic supports 14 at the upper half of the second cutting eye 19 are installed in sequence from bottom to top; the hydraulic supports 14 at the lower half of the closing working eye 20 are transported from the transport level 6 to the lower half of the second cutting eye 19, and the hydraulic supports 14 transported from the lower end of the closing working eye 20 will be transported to the upper end of the lower half of the second cutting eye 19, and the hydraulic supports 14 from the upper end of the lower half of the closing working eye 20 will be transported to the lower end of the lower half of the second cutting eye 19, and the hydraulic supports 14 at the lower half of the closing working eye 20 will be transported to the lower end of the lower half of the second cutting eye 19. The hydraulic supports 14 are transported from bottom to top in sequence, and the second cutting eye 19 is inclined to the lower half and the hydraulic supports 14 are installed in sequence from top to bottom; the hydraulic supports 14 being moved in the recovery eye 20 will not be affected by the unmoved hydraulic supports 14, and the hydraulic supports 14 already installed in the second cutting eye 19 will not affect the installation of subsequent hydraulic supports 14; due to the height difference of the fault 4, the transport tunnel 6 and the track tunnel 7 are arranged in an inclined manner along the direction between the second cutting eye 19 and the recovery eye 20. Therefore, when transporting the hydraulic supports 14, the transport vehicle walks on the second auxiliary track 18 in the transport tunnel 6 and walks on the second auxiliary track 18 in the track tunnel 7. The mine car track 15 is used inside, and a winch is used to assist in dragging or releasing. When the transport level 6 and the track level 7 are lower on the left and higher on the right, the winch is placed on the side of the collection eye 20, the winch is connected to the transport car, and the transport car and the hydraulic support 14 on it are slowly released to the corresponding position of the second cutting eye 19. When the transport level 6 and the track level 7 are higher on the left and lower on the right, the winch is placed on the side of the second cutting eye 19, the winch is connected to the transport car, and the transport car and the hydraulic support 14 on it are dragged to the corresponding position of the second cutting eye 19. The specifications of the transport car are compatible with the mine car track 15 and the second auxiliary track 18. The hydraulic support can be moved in one piece without disassembly.

[0038] At the same time as the hydraulic support 14 is moved, the scraper conveyor 12 is moved in sections. In the closing eye 20, the scraper conveyor sections are transported alternately from both ends by transport trolleys through the auxiliary lane 16 to the second cutting eye 19, and in the second cutting eye 19, the scraper conveyor sections are installed alternately from the middle to both ends; the scraper conveyor sections in the lower half of the closing eye 20 are transported from the auxiliary lane 16 to the lower half of the second cutting eye 19, and the scraper conveyor sections transported from the lower end of the lower half of the closing eye 20 will be transported to the upper end of the lower half of the second cutting eye 19, and the scraper conveyor sections from the upper end of the lower half of the closing eye 20 will be transported to the lower end of the lower half of the second cutting eye 19; when the transport trolley in the closing eye 20 transports the disassembled scraper conveyor sections, it rides on the undisassembled scraper conveyor 12 and transports them to the auxiliary lane 16, and then the transport trolley moves to the second cutting eye 19 via the first auxiliary track 17. In the cutting eye 19, the transport trolley rides on the installed scraper conveyor 12 when transporting the disassembled scraper conveyor segment in the second cutting eye 19; affected by the height difference of the fault 4, the auxiliary tunnel 16 between the second cutting eye 19 and the recovery eye 20 is arranged inclined along the strike direction, so when transporting the scraper conveyor segment, the transport trolley walks on the first auxiliary track 17 in the auxiliary tunnel 16, and is assisted by a winch to drag or release it; when the auxiliary tunnel 16 is lower on the left and higher on the right, the winch is placed on the side of the recovery eye 20, the winch is connected to the transport trolley, and the transport trolley and the scraper conveyor segment on it are slowly released into the second cutting eye 19; when the auxiliary tunnel 16 is higher on the left and lower on the right, the winch is placed on the side of the second cutting eye 19, the winch is connected to the transport trolley, and the transport trolley and the scraper conveyor segment on it are dragged into the second cutting eye 19; the specifications of the transport trolley are compatible with the first auxiliary track 17 and the track on the scraper conveyor 12 for the coal mining machine 13 to ride;

[0039] S6. After installing the hydraulic support 14 and the scraper conveyor 12 in the second cutting eye 19, transport the coal mining machine 13 to the scraper conveyor 12, connect the transfer machine 10 to the scraper conveyor 12, extend the belt conveyor 8 to connect the transfer machine 10, retract the mine car track 15 in the track level 7 to the second cutting eye 19 position, and reclaim the first auxiliary track 17 and the second auxiliary track 18; construct gas pressure relief drilling holes from the transport level 6 and / or track level 7 to the second mining area 3, extract and depressurize the coal in the second mining area 3, and the extracted gas can be recycled for power generation; carry out mining in the second mining area 3.

[0040] In step S5, in order to avoid the hydraulic support 14 affecting the segmented transportation work of the scraper conveyor at the auxiliary tunnel 16, the hydraulic supports 14 arranged at the auxiliary transport tunnel 16 should be adjusted to the inclination sides of the auxiliary transport tunnel 16, and the initial spacing of multiple hydraulic supports 14 near the auxiliary transport tunnel 16 should be reduced. Before mining in the second mining area 3, the multiple hydraulic supports 14 near the auxiliary transport tunnel 16 should be adjusted to the standard spacing.

[0041] Of course, the above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above-mentioned embodiments. It should be noted that all equivalent substitutions and obvious deformation forms made by any technician familiar with this field under the guidance of this specification fall within the substantive scope of this specification and should be protected by the present invention.

Claims

1. A method for crossing faults in a coal and gas outburst mine working face, characterized in that: The following steps are involved: S1. Construct the transport tunnel and track tunnel along the strike to the designed location. Construct the first cut to connect the transport tunnel and track tunnel to form a coal mining face. A fault runs through the coal mining face, and a fault protection pillar is installed. This pillar divides the coal mining face from right to left along the strike into the first mining area, the fault protection pillar, and the second mining area. Construct a gas pressure relief borehole into the first mining area to extract and depressurize the coal in the first mining area. S2. Arrange a scraper conveyor, a shearer, and a hydraulic support inside the first cut. The hydraulic support is arranged at intervals along the inclination. The scraper conveyor is arranged close to the coal wall along the inclination, and the shearer rides on the scraper conveyor. Arrange belt conveyors in the transport lanes, and use transfer machines to connect scraper conveyors and belt conveyors; S3. The first mining area is mined until the fault protection coal pillar is mined, and the construction is completed. The scraper conveyor, coal mining machine and hydraulic support are stopped at the closed eye; During the mining of the first mining area, the second cutting eye of the second mining area is simultaneously constructed along the trend, and an auxiliary roadway is constructed along the strike in the middle of the fault protection coal pillar trend, and the auxiliary roadway can connect the second cutting eye and the closing eye; S4. The belt conveyor is retracted to the left of the second cut hole, and the transfer machine is transported to the right of the belt conveyor and located to the left of the second cut hole; the shearer is transported to the track level, and the shearer is located to the left of the second cut hole; S5. Simultaneously transport hydraulic supports from both ends of the retrieval eye to the second cut-eye, and simultaneously deploy hydraulic supports within the second cut-eye from the middle of the retrieval eye toward both ends. Hydraulic supports in the upper half of the retrieval eye are transported from the track level to the upper half of the second cut-eye. Hydraulic supports in the upper half of the retrieval eye are sequentially removed from top to bottom, and hydraulic supports are installed sequentially in the upper half of the second cut-eye from bottom to top. Hydraulic supports in the lower half of the retrieval eye are transported from the transport level to the lower half of the second cut-eye. Hydraulic supports in the lower half of the retrieval eye are sequentially removed from bottom to top, and hydraulic supports are installed sequentially in the lower half of the second cut-eye from top to bottom. The hydraulic supports are fully assembled and moved without disassembly. While the hydraulic support is being moved, the scraper conveyor is moved in sections. In the harvesting eye, the scraper conveyor sections are transported alternately from the two ends of the inclination to the second cutting eye through the auxiliary lane. In the second cutting eye, the scraper conveyor sections are installed alternately from the middle of the inclination to the two ends. S6. After installing the hydraulic support and scraper conveyor in the second cutting eye, move the coal mining machine onto the scraper conveyor, connect the transfer machine to the scraper conveyor, and connect the belt conveyor to the transfer machine; construct a gas pressure relief borehole in the second mining area, extract gas and relieve pressure on the coal in the second mining area; and carry out mining in the second mining area.

2. The method for crossing faults in a coal and gas outburst mine working face according to claim 1, characterized in that: A crusher is provided at the transfer machine; in step S2, an equipment train is arranged parallel to the belt conveyor at one end of the belt conveyor close to the transfer machine; in step S4, the equipment train is transported to the left of the second cutting eye and close to the right end of the belt conveyor.

3. The method for crossing faults in a coal and gas outburst mine working face according to claim 1, characterized in that: A mine car track is arranged in the track level tunnel; in step S4, a second auxiliary track is arranged in the transport level tunnel, between the second cutting eye and the closing eye, the specifications of the second auxiliary track are the same as the mine car track specifications in the track level tunnel, and a transport vehicle is used to transport the hydraulic support; the specifications of the transport vehicle are adapted to the mine car track and the second auxiliary track.

4. The method for crossing faults in a coal and gas outburst mine working face according to claim 3 is characterized in that: In step S4, the coal mining machine is transported to the mine car track in the track level tunnel.

5. The method for crossing faults in a coal and gas outburst mine working face according to claim 3 is characterized in that: In step S5, the transport tunnel and the track tunnel are arranged inclined along the direction between the second cutting eye and the harvesting eye. The transport vehicle runs on the second auxiliary track in the transport tunnel and on the mine car track in the track tunnel, and is assisted by a winch for dragging or releasing.

6. The method for crossing faults at a coal and gas outburst mine working face according to claim 1, characterized in that: In step S3, a first auxiliary track is arranged along the direction in the auxiliary lane. The specifications of the first auxiliary track are the same as those of the track on the scraper conveyor. A transport trolley is used to transport the scraper conveyor sections. The specifications of the transport trolley are compatible with the first auxiliary track and the track on the scraper conveyor.

7. The method for crossing faults in a coal and gas outburst mine working face according to claim 6, characterized in that: In step S5, when the transport trolley transports the disassembled scraper conveyor segments in the receiving eye, it rides on the undisassembled scraper conveyor and transports it to the auxiliary lane. Then the transport trolley moves to the second cutting eye through the first auxiliary track. In the second cutting eye, when the transport trolley transports the disassembled scraper conveyor segments, it rides on the installed scraper conveyor.

8. The method for crossing faults at a coal and gas outburst mine working face according to claim 7, characterized in that: In step S5, the auxiliary lane between the second cutting eye and the harvesting eye is arranged inclined along the direction, so when transporting the scraper conveyor segments, the transport vehicle walks on the first auxiliary track in the auxiliary lane and is assisted by a winch to drag or release.

9. The method for crossing faults at a coal and gas outburst mine working face according to claim 1, characterized in that: In step S5, in order to avoid the hydraulic supports affecting the segmented transportation work of the scraper conveyor in the auxiliary tunnel, the hydraulic supports arranged in the auxiliary transport tunnel should be adjusted to both sides of the auxiliary transport tunnel, and the initial spacing of multiple hydraulic supports near the auxiliary transport tunnel should be reduced. Before mining in the second mining area, the multiple hydraulic supports near the auxiliary transport tunnel should be adjusted to the standard spacing.

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