A vehicle-mounted shaft boring machine and shaft boring method

Abstract

This invention relates to the field of shaft boring machine (HMD) technology, specifically to a vehicle-mounted HMD and its construction method. The vehicle-mounted HMD includes a main unit, a jacking system, a base, a propulsion system, a chassis system, a cab, a pipeline system, a tilting system, and tunnel sections. The main unit of this invention includes a cutterhead, a main drive, a front shield, a rear shield, an articulated cylinder, and a stabilizer. The main drive is installed inside the front shield, with the cutterhead mounted at its front end. The front and rear shields are connected via the articulated cylinder. In this invention, the cutterhead is directly connected to the drive, and the drilling thrust and torque are not affected by the drilling depth, resulting in higher drilling efficiency for large-diameter HMDs in hard rock geological conditions.

Description

Technical Field

[0001] This invention relates to the field of shaft tunneling machine technology, specifically to a vehicle-mounted shaft tunneling machine and a shaft tunneling method. Background Technology

[0002] In the process of metal mining, it is necessary to drill cutting shafts upwards along the ore body to provide a free face for large-scale blasting. However, currently, cutting shafts are still excavated manually using the hoisting method. Due to the natural upward diffusion characteristics of dust, coupled with the lack of ventilation at the top of the shaft, workers face serious dust and fall hazards from height. Although the application of cutting shaft drilling rigs has alleviated this predicament to some extent, when drilling upwards, the drill bit and power unit are connected through the drill rod. The torque and thrust transmitted by the drill rod are limited, and the drilling pressure and torque generally decrease with the increase of drilling depth, resulting in a gradual decrease in drilling efficiency. The maximum drilling diameter is about 0.67m. If a larger diameter hole needs to be drilled, a roadway needs to be excavated above, and a cutterhead needs to be installed to enlarge the hole, which increases the cost of mining and is complex, resulting in low overall hole formation efficiency.

[0003] In summary, there is an urgent need for a vehicle-mounted shaft boring machine and shaft boring method to solve the existing problems. Summary of the Invention

[0004] The purpose of this invention is to provide a vehicle-mounted shaft boring machine and a shaft boring method, the specific technical solution of which is as follows: A vehicle-mounted tunnel boring machine includes: The main unit includes a cutter head, a main drive, a front shield body, a rear shield body, and a hinged hydraulic cylinder; the main drive is installed inside the front shield body, and the cutter head is installed at the front end of the main drive; the front shield body and the rear shield body are connected by the hinged hydraulic cylinder. The top support system includes a top rod, a top rod cylinder, a positioning plate, and a positioning plate cylinder. The positioning plate includes an upper plate body and a lower guide post. The top rod is slidably connected to the lower guide post, and the lower guide post is mounted on the propulsion system. The base is used to bear all the reaction forces during the drilling process, including its own weight; The propulsion system includes a frame, a propulsion cylinder, a propulsion disc, a sway cylinder, and a first tilting hinge support. The frame is provided with a frame column, a positioning disc cylinder seat disposed inside the frame column, and a second tilting hinge support. The propulsion disc includes a rotating disc, a bearing, a body, a rotating cylinder, and a first hinge lug. The first hinge lug is disposed on the rotating disc, and the rotating disc is mounted on the body via a bearing. The chassis system includes a hydraulic system and an engine system at the rear, a cab and piping system in the middle, and a tilting system at the front for tilting the main unit. A laser positioning system, comprising an upper laser measuring instrument mounted on a positioning plate and a lower laser measuring instrument mounted on a frame, wherein the upper and lower laser measuring instruments cooperate to calibrate each other to achieve host positioning.

[0005] Optionally, the main unit also includes a stabilizer disposed inside the rear shield body, the stabilizer being used to apply pressure to the borehole wall during the drilling process.

[0006] Optionally, the main unit is equipped with a first slag discharge channel at its center, through which rock slag is discharged downwards under the action of gravity.

[0007] Optionally, the base includes a longitudinal beam, outrigger cylinders, a rotating shaft, and a rotating platform. The rotating shaft has a square body in the middle and cylindrical bodies at both ends. The lower part of the square body is connected to the rotating platform, and the cylindrical bodies are connected to the longitudinal beam. The rotating platform includes a rotating base, a rotary reducer, a hydraulic motor, and a deflection hinge support. The deflection hinge support is mounted on the rotating base.

[0008] Optionally, the propulsion system is hinged to the base via a rotating shaft, and under the action of the oscillating cylinder, it oscillates around the rotating shaft to achieve drilling of the main unit at an angle of 60° to 90° upwards with respect to the horizontal plane.

[0009] Optionally, the propulsion system further includes a backstop device disposed on the frame to prevent the tube section from sliding down.

[0010] Optionally, the chassis system includes a track assembly, a frame, a second tilting hinge support, and a tilting cylinder seat. The frame is mounted on the track assembly, and both the second tilting hinge support and the tilting cylinder seat are mounted on the frame. The second tilting hinge support and the tilting cylinder seat cooperate to achieve the tilting of the main unit.

[0011] Optionally, the tilting system includes a tilting inner support, a tilting outer support, a tilting cylinder, a pin assembly, and an inner support lifting cylinder. The tilting inner support is connected to the tilting hinge support of the propulsion system via a pin assembly, which is driven by a hydraulic cylinder. The tilting inner support is also slidably connected to the tilting outer support and its height is adjusted via the inner support lifting cylinder. The tilting outer support is hinged to the chassis system.

[0012] Optionally, the vehicle-mounted tunnel boring machine also includes multiple pipe sections connected in sequence, with the pipe section at the front end connected to the rear shield body; The pipe section is provided with a second slag discharge channel inside. The second slag discharge channels of multiple pipe sections are correspondingly arranged and connected. The second slag discharge channel and the first slag discharge channel of the main unit form a straight connecting channel. The side of the pipe section is provided with a pipeline channel and a backflow prevention groove. The backflow prevention groove is used to cooperate with the backflow prevention device to prevent the pipe section from sliding down. The upper part of the pipe section is provided with a second hinge lug, and the bottom of the pipe section is provided with a bearing hole. The bottom of the rear shield body is provided with a bearing hole that mates with the pipe section. The hinge lug is inserted into the bearing hole to achieve mechanical connection.

[0013] In addition, the present invention also includes a construction method using the vehicle-mounted shaft boring machine described above, the steps of which are as follows: S1. Surveying and Setting Out: According to the design drawings, the construction surveyors survey and set out the tunnel floor and roof, mark the two center positions, and the line connecting them is the drilling axis. A laser sensing target is installed at the center of the circle. S2. Equipment Transportation: The driver operates the tunnel boring machine to move to the construction area. The laser system measures and positions the machine in real time. The tilting system flips the main unit to a vertical position. At this time, the center of the rotary table is aligned with the layout point of the tunnel floor. The rotary table adjusts the main unit to a suitable angle, and the outrigger cylinders extend and lift the main unit. S3. Equipment positioning: The sway cylinder drives the frame to rotate around the shaft at a certain angle, so that the upper laser measuring instrument is aligned with the laser sensing target on the tunnel roof. At this time, the main machine axis coincides with the drilling axis, the positioning plate moves upward and closes to the tunnel roof, and the push rod presses against the tunnel roof to securely fix the equipment in the tunnel. S4. Start Drilling: The propulsion disc lifts the main unit upward and contacts the tunnel roof. The cutter head is started to begin drilling. The cut rock debris is discharged into the tunnel along the slag discharge channel under gravity. When the drilling depth reaches the length of one pipe section, the anti-reverse device on the frame locks the shield body to prevent the main unit from sliding down. The propulsion cylinder drives the propulsion disc back to the lower stop point. S5. Install the first pipe section: Use lifting equipment such as forklifts to place the first pipe section onto the push plate, and extend the pipeline simultaneously; S6, Second stroke drilling: The pusher plate lifts the pipe section and main unit in S5 upwards. When the drilling depth reaches the length of one pipe section, the anti-reverse device locks the pipe section to prevent the pipe section and main unit from sliding down. The pusher plate returns to the lower dead center. S7. Install the second pipe section: Place the second pipe section onto the push plate to extend the pipeline simultaneously; S8. Cyclic drilling: Repeat steps S5 to S7 until drilling reaches the designed depth; S9. Main Unit Retraction: Under the action of gravity, the main unit and pipe sections reach the lower dead center with the propulsion plate. The anti-retraction device locks the second to last pipe section, the first to last pipe section is removed, the propulsion plate reaches the upper dead center, the anti-retraction device is released, and the above process is repeated until all pipe sections are removed and the main unit and propulsion plate return to the lower dead center. S10, Main Unit Transportation: The tilting device puts the main unit into transportation mode, drives it away from the tunnel, and completes all drilling procedures.

[0014] The application of the technical solution of the present invention has the following beneficial effects: This invention provides a vehicle-mounted shaft boring machine (HMD). In this invention, the cutterhead is directly connected to the drive unit, so the drilling thrust and torque are not affected by the drilling depth, resulting in higher drilling efficiency for large-diameter shafts in hard rock geological conditions. Furthermore, the HMD provided by this invention has a mobile chassis, enabling self-propelled operation, automatic erection, and main unit retrieval, allowing for flexible relocation within the shaft and shortening preparation time. Additionally, the HMD of this invention features a rotary table and a deflection mechanism, combined with a laser positioning system, resulting in high hole-finding efficiency and the ability to drill vertical or oblique holes, thus enhancing adaptability. The propulsion disc in this invention has a fine-tuning function around the Z-axis, facilitating the alignment and connection between pipe sections and the alignment of the anti-reverse device and anti-reverse groove.

[0015] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the vehicle-mounted shaft boring machine in a preferred embodiment of the present invention; Figure 2 This is a cross-sectional view of the host in a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the top support system in a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the base structure in a preferred embodiment of the present invention; Figure 5 This is a schematic diagram of the propulsion system in a preferred embodiment of the present invention; Figure 6 This is a schematic diagram of the propulsion disk in a preferred embodiment of the present invention; Figure 7 This is a schematic diagram of the chassis system and the tilting system in a preferred embodiment of the present invention; Figure 8 This is a schematic diagram of the pipe section in a preferred embodiment of the present invention.

[0018] Among them, the main unit 1, cutter head 1-1, main drive 1-2, front shield 1-3, rear shield 1-4, articulated oil cylinder 1-5, stabilizer 1-6, and first slag discharge channel 1-7 are included. Top support system 2, top rod 2-1, top rod cylinder 2-2, positioning plate 2-3, upper plate 2-3-1, lower guide column 2-3-2, positioning plate cylinder 2-4; Base 3, longitudinal beam 3-1, outrigger cylinder 3-2, rotating shaft 3-3, rotating table 3-4, rotating base 3-4-1, rotary reducer 3-4-2, hydraulic motor 3-4-3, hinge support 3-4-4; Propulsion system 4, frame 4-1, frame column 4-1-1, positioning plate cylinder seat 4-1-2, deflection hinge support 2 4-1-3, propulsion cylinder 4-2, propulsion plate 4-3, rotating plate 4-3-1, bearing 4-3-2, body 4-3-3, rotating cylinder 4-3-4, first hinge lug 4-3-5, sway cylinder 4-4, tilting hinge support 1 4-5, anti-reverse device 4-6; 5. Chassis system; 5-1. Track assembly; 5-2. Frame; 5-3. Tilting hinge support; 5-4. Tilting cylinder seat; 5-5. Hydraulic system; 5-6. Engine system; Cab 6; Piping system 7; 8. Tilting system, 8-1. Tilting inner support, 8-2. Tilting outer support, 8-3. Tilting cylinder, 8-4. Pin assembly, 8-5. Inner support lifting cylinder; Pipe section 9, second slag discharge channel 9-1, second hinge lug 9-2, foundation hole 9-3, pipeline channel 9-4, anti-reverse groove 9-5. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figure 1 As shown, this embodiment provides a vehicle-mounted tunnel boring machine, including a main unit 1, a top support system 2, a base 3, a propulsion system 4, a chassis system 5, a cab 6, a pipeline system 7, a tilting system 8, and a pipe section 9.

[0021] like Figure 2As shown, the main unit 1 in this embodiment includes a cutterhead 1-1, a main drive 1-2, a front shield 1-3, a rear shield 1-4, a hinge cylinder 1-5, and a stabilizer 1-6. The main drive 1-2 is installed inside the front shield 1-3, and the cutterhead 1-1 is installed at the front end of the main drive 1-2. The front shield 1-3 and the rear shield 1-4 are connected by the hinge cylinder 1-5. The stabilizer 1-6 is located inside the rear shield 1-4 and is used to apply pressure to the borehole wall during drilling. In addition, the main unit 1 in this embodiment has a first slag discharge channel 1-7 at its center, and the rock slag is discharged downward along the first slag discharge channel 1-7 under the action of gravity.

[0022] like Figure 3 As shown, the top support system 2 is connected to the propulsion system 4. The top support system 2 includes a top rod 2-1, a top rod cylinder 2-2, a positioning disk 2-3, and a positioning disk cylinder 2-4. The positioning disk 2-3 includes an upper disk body 2-3-1 and a lower guide post 2-3-2. Both the top rod 2-1 and the upper disk body 2-3-1 are slidably connected to the lower guide post 2-3-2. In this embodiment, the lower guide post 2-3-2 is mounted on the propulsion system 4 via the positioning disk cylinder 2-4. The top rod cylinder 2-2 is connected to the top rod 2-1 and is used to drive the top rod 2-1. The positioning disk cylinder 2-4 is used to drive the positioning disk 2-3.

[0023] like Figure 4 As shown, in this embodiment, the base 3 is used to bear all the reaction forces during the drilling process, including its own weight. The base 3 includes a longitudinal beam 3-1, a support leg cylinder 3-2, a rotating shaft 3-3, and a rotating platform 3-4. The rotating shaft 3-3 has a square body in the middle and cylindrical bodies at both ends. The lower part of the square body is connected to the rotating platform 3-4, and the cylindrical bodies are connected to the longitudinal beam 3-1. The rotating platform 3-4 includes a rotating base 3-4-1, a rotary reducer 3-4-2, a hydraulic motor 3-4-3, and a deflection hinge support 3-4-4. The deflection hinge support 3-4-4 is mounted on the rotating base 3-4-1.

[0024] like Figure 5 As shown, the propulsion system 4 includes a frame 4-1, a propulsion cylinder 4-2, a propulsion disc 4-3, a yaw cylinder 4-4, and a tilting hinge support 4-5. The frame 4-1 is equipped with a frame column 4-1-1, a positioning disc cylinder seat 4-1-2 disposed inside the frame column 4-1-1, and a second tilting hinge support 4-1-3. The propulsion cylinder 4-2 and the yaw cylinder 4-4 are both mounted on the frame 4-1. The propulsion cylinder 4-2 provides propulsion power for tunneling operations, and the yaw cylinder 4-4 drives the propulsion system to perform yaw motion, thereby changing the propulsion angle.

[0025] Furthermore, such as Figure 6As shown, the propulsion disk 4-3 includes a rotating disk 4-3-1, a bearing 4-3-2, a body 4-3-3, a rotating cylinder 4-3-4, and a first hinge lug 4-3-5. The first hinge lug 4-3-5 is disposed on the rotating disk 4-3-1, and the rotating disk 4-3-1 is mounted on the body 4-3-3 via the bearing 4-3-2. The rotating cylinder 4-3-4 is connected to the rotating disk 4-3-1 and is used to drive the rotating disk 4-3-1 to rotate.

[0026] Furthermore, the propulsion system 4 is hinged to the base 3 via a rotating shaft 3-3, and under the action of the oscillating cylinder 4-4, it oscillates around the rotating shaft 3-3 to achieve the main unit 1 drilling upward at an angle of 60° to 90° with the horizontal plane.

[0027] Furthermore, the propulsion system 4 also includes a backstop device 4-6 disposed on the frame 4-1, the backstop device 4-6 being used to prevent the tube section 9 from sliding down.

[0028] The chassis system 5 is located below the propulsion system 4. A hydraulic system 5-5 and an engine system 5-6 are located at the rear of the chassis system 5. A cab 6 and a piping system 7 are located in the middle of the chassis system 5. A tilting system 8 is located at the front of the chassis system 5, used to tilt the main unit 1. It should be noted that in this embodiment, the hydraulic system 5-5 provides hydraulic power to the various cylinders in the vehicle-mounted headstock, and the engine system 5-6 provides the mobility power for the chassis system 5.

[0029] like Figure 7 As shown, the chassis system 5 includes a track assembly 5-1, a frame 5-2, a second tilting hinge support 5-3, and a tilting cylinder seat 5-4. The frame 5-2 is mounted on the track assembly 5-1. The second tilting hinge support 5-3 and the tilting cylinder seat 5-4 are both mounted on the frame. The second tilting hinge support 5-3 and the tilting cylinder seat 5-4 cooperate to tilt the main unit 1.

[0030] Specifically, the flipping system 8 in this embodiment includes a flipping inner support 8-1, a flipping outer support 8-2, a flipping cylinder 8-3, a pin assembly 8-4, and an inner support lifting cylinder 8-5. The flipping inner support 8-1 is connected to the flipping hinge support 4-5 of the propulsion system 4 through the pin assembly 8-4, which is driven by a hydraulic cylinder. The flipping inner support 8-1 is also slidably connected to the flipping outer support 8-2, and its height is adjusted by the inner support lifting cylinder 8-5. The flipping outer support 8-2 is hinged to the chassis system 5.

[0031] The laser positioning system 10 includes an upper laser measuring instrument 10-1 mounted on the positioning disk 2-3 and a lower laser measuring instrument 10-2 mounted on the frame 4-1. The upper laser measuring instrument 10-1 and the lower laser measuring instrument 10-2 cooperate to calibrate each other and realize the positioning of the host 1.

[0032] The vehicle-mounted tunnel boring machine provided in this embodiment also includes multiple pipe sections 9 connected in sequence, with the first pipe section 9 connected to the rear shield body 1-4; The pipe section 9 is provided with a second slag discharge channel 9-1 inside. The second slag discharge channels 9-1 of multiple pipe sections 9 are correspondingly arranged and connected. The second slag discharge channel 9-1 and the first slag discharge channel 1-7 of the main unit 1 form a straight connecting channel. The side of the pipe section 9 is provided with a pipeline channel 9-4 and a backflow prevention groove 9-5. The backflow prevention groove 9-5 is used to cooperate with the backflow prevention device 4-6 to prevent the pipe section 9 from sliding down. The upper part of the pipe section 9 is provided with a second hinge lug 9-2, and the bottom of the pipe section 9 is provided with a base hole 9-3. The bottom of the rear shield body 1-4 is provided with a base hole 9-3 that mates with the pipe section 9. The hinge lug 9-2 is inserted into the base hole 9-3 to achieve mechanical connection.

[0033] In addition, this embodiment also provides a construction method using the vehicle-mounted shaft boring machine described above, the steps of which are as follows: S1. Surveying and Setting Out: According to the design drawings, the construction surveyors survey and set out the tunnel floor and roof, mark the two center positions, and the line connecting them is the drilling axis. A laser sensing target is installed at the center of the circle. S2. Equipment transportation: The driver operates the shaft tunneling machine to move to the construction area. The laser system 10 measures and positions in real time. The flipping system 8 flips the main unit 1 to a vertical position. At this time, the center of the rotary table 3-4 is aligned with the layout point of the tunnel floor. The rotary table 3-4 adjusts the main unit 1 to a suitable angle. The outrigger cylinder 3-2 extends and lifts the main unit 1. S3. Equipment positioning: The sway cylinder 4-4 drives the frame 4-1 to rotate around the shaft 3-3 by a certain angle, so that the upper laser measuring instrument 10-1 is aligned with the laser sensing target on the roadway roof. At this time, the axis of the main unit 1 coincides with the drilling axis, the positioning plate 2-3 moves upward and closes to the roadway roof, and the push rod 2-1 presses against the roadway roof, firmly fixing the equipment in the roadway. S4. Start drilling: The propulsion disc 4-3 lifts the main unit 1 upward and contacts the tunnel roof. The cutterhead 1-1 starts drilling. The cut rock cuttings are discharged into the tunnel along the slag discharge channel under gravity. When the drilling depth reaches the length of one pipe section, the anti-reverse device 4-6 on the frame 4-1 locks the shield 1-4 to prevent the main unit 1 from sliding down. The propulsion cylinder 4-2 drives the propulsion disc 4-3 back to the lower stop point. S5. Install the first pipe section: Use a forklift or other lifting equipment to place the first pipe section 9 onto the push plate 4-3, and extend the pipeline simultaneously; S6, Second stroke drilling: The pusher plate 4-3 lifts the pipe section 9 and the main unit 1 in S5 upward. When the drilling depth reaches the length of one pipe section, the anti-reverse device 4-6 locks the pipe section 9 to prevent the pipe section 9 and the main unit 1 from sliding down. The pusher plate 4-3 returns to the lower dead center. S7. Install the second pipe section: Place the second pipe section 9 onto the push plate 4-3 to extend the pipeline simultaneously; S8. Cyclic drilling: Repeat steps S5 to S7 until drilling reaches the designed depth; S9. Main Unit Retraction: Under the action of gravity, the main unit 1 and pipe section 9 reach the lower dead point along with the propulsion disk 4-3. The anti-retraction device 4-6 locks the second to last pipe section 9, and the first to last pipe section 9 is removed. The propulsion disk 4-3 reaches the upper dead point, and the anti-retraction device 4-6 is released. The above process is repeated until all pipe sections 9 are removed, and the main unit 1 and propulsion disk 4-3 return to the lower dead point. S10, Main Unit Transportation: The tilting device 8 puts the main unit 1 into transportation mode, drives it away from the tunnel, and completes all drilling procedures.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vehicle-mounted shaft boring machine, characterized in that, include: The main unit (1) includes a cutter head (1-1), a main drive (1-2), a front shield body (1-3), a rear shield body (1-4), and a hinge cylinder (1-5); the main drive (1-2) is installed inside the front shield body (1-3), and the cutter head (1-1) is installed at the front end of the main drive (1-2); the front shield body (1-3) and the rear shield body (1-4) are connected by the hinge cylinder (1-5); The top support system (2) includes a top rod (2-1), a top rod cylinder (2-2), a positioning plate (2-3), and a positioning plate cylinder (2-4). The positioning plate (2-3) includes an upper plate body (2-3-1) and a lower guide post (2-3-2). The top rod (2-1) is slidably connected to the lower guide post (2-3-2). The lower guide post (2-3-2) is set on the propulsion system (4). The base (3) is used to bear all the reaction forces during the drilling process, including its own weight; The propulsion system (4) includes a frame (4-1), a propulsion cylinder (4-2), a propulsion disc (4-3), a sway cylinder (4-4), and a first tilting hinge support (4-5). The frame (4-1) is provided with a frame column (4-1-1), a positioning disc cylinder seat (4-1-2) provided inside the frame column (4-1-1), and a second tilting hinge support (4-1-3). The propulsion disc (4-3) includes a rotating disc (4-3-1), a bearing (4-3-2), a body (4-3-3), a rotating cylinder (4-3-4), and a first hinge ear (4-3-5). The first hinge ear (4-3-5) is provided on the rotating disc (4-3-1), and the rotating disc (4-3-1) is mounted on the body (4-3-3) through the bearing (4-3-2). The chassis system (5) is provided with a hydraulic system (5-5) and an engine system (5-6) at the rear. The chassis system (5) is provided with a cab (6) and a pipeline system (7) in the middle. The chassis system (5) is provided with a tilting system (8) at the front. The tilting system (8) is used to tilt the host (1). The laser positioning system (10) includes an upper laser measuring instrument (10-1) mounted on a positioning disk (2-3) and a lower laser measuring instrument (10-2) mounted on a frame (4-1). The upper laser measuring instrument (10-1) and the lower laser measuring instrument (10-2) cooperate to calibrate each other to achieve positioning of the host (1). Multiple pipe sections (9) are connected in sequence, with the first pipe section (9) connected to the rear shield body (1-4); The pipe section (9) is provided with a second slag discharge channel (9-1) inside. The second slag discharge channels (9-1) of multiple pipe sections (9) are correspondingly arranged and connected. The second slag discharge channel (9-1) and the first slag discharge channel (1-7) of the main unit (1) form a straight connecting channel. The side of the pipe section (9) is provided with a pipeline channel (9-4) and a backflow prevention groove (9-5). The backflow prevention groove (9-5) is used to cooperate with the backflow prevention device (4-6) to prevent the pipe section (9) from sliding down. The upper part of the pipe section (9) is provided with a second hinge lug (9-2), and the bottom of the pipe section (9) is provided with a base hole (9-3). The bottom of the rear shield body (1-4) is provided with a base hole (9-3) that mates with the pipe section (9). The hinge lug (9-2) is inserted into the base hole (9-3) to achieve mechanical connection.

2. The vehicle-mounted shaft boring machine according to claim 1, characterized in that, The main unit (1) also includes a stabilizer (1-6), which is disposed inside the rear shield body (1-4) and is used to apply pressure to the borehole wall during the drilling process.

3. The vehicle-mounted shaft boring machine according to claim 1, characterized in that, The main unit (1) has a first slag discharge channel (1-7) at its center, and the rock slag is discharged downward along the first slag discharge channel (1-7) under the action of gravity.

4. The vehicle-mounted shaft boring machine according to claim 1, characterized in that, The base (3) includes a longitudinal beam (3-1), a support leg cylinder (3-2), a rotating shaft (3-3), and a rotating platform (3-4). The rotating shaft (3-3) has a square body in the middle and cylindrical bodies at both ends. The lower part of the square body is connected to the rotating platform (3-4), and the cylindrical bodies are connected to the longitudinal beam (3-1). The rotating platform (3-4) includes a rotating base (3-4-1), a rotary reducer (3-4-2), a hydraulic motor (3-4-3), and a deflection hinge support (3-4-4). The deflection hinge support (3-4-4) is mounted on the rotating base (3-4-1).

5. The vehicle-mounted shaft boring machine according to claim 4, characterized in that, The propulsion system (4) is hinged to the base (3) via a rotating shaft (3-3) and swings around the rotating shaft (3-3) under the action of the sway cylinder (4-4) to realize the main unit (1) drilling upward at an angle of 60° to 90° with the horizontal plane.

6. The vehicle-mounted shaft boring machine according to claim 1, characterized in that, The propulsion system (4) also includes a backstop device (4-6) disposed on the frame (4-1), the backstop device (4-6) being used to prevent the pipe section (9) from sliding down.

7. The vehicle-mounted shaft boring machine according to claim 6, characterized in that, The chassis system (5) includes a track assembly (5-1), a frame (5-2), a second tilting hinge support (5-3), and a tilting cylinder seat (5-4). The frame (5-2) is mounted on the track assembly (5-1). The second tilting hinge support (5-3) and the tilting cylinder seat (5-4) are both mounted on the frame (5-2). The second tilting hinge support (5-3) and the tilting cylinder seat (5-4) work together to tilt the main unit (1).

8. The vehicle-mounted shaft boring machine according to claim 1, characterized in that, The flipping system (8) includes a flipping inner support (8-1), a flipping outer support (8-2), a flipping cylinder (8-3), a pin assembly (8-4), and an inner support lifting cylinder (8-5). The flipping inner support (8-1) is connected to the flipping hinge support (4-5) of the propulsion system (4) through the pin assembly (8-4). The pin assembly (8-4) is driven by a hydraulic cylinder. The flipping inner support (8-1) is also slidably connected to the flipping outer support (8-2) and its height is adjusted by the inner support lifting cylinder (8-5). The flipping outer support (8-2) is hinged to the chassis system (5).

9. A construction method using a vehicle-mounted tunnel boring machine as described in any one of claims 1-8, characterized in that, The steps of the construction method are as follows: S1. Surveying and Setting Out: According to the design drawings, the construction surveyors survey and set out the tunnel floor and roof, mark the two center positions, and the line connecting them is the drilling axis. A laser sensing target is installed at the center of the circle. S2. Equipment transportation: The driver operates the tunnel boring machine to walk to the construction area. The laser system (10) measures and positions in real time. The flipping system (8) flips the main unit (1) to a vertical position. At this time, the center of the rotary table (3-4) is aligned with the layout point of the roadway floor. The rotary table (3-4) adjusts the main unit (1) to a suitable angle. The outrigger cylinder (3-2) extends and lifts the main unit (1). S3. Equipment positioning: The sway cylinder (4-4) drives the frame (4-1) to rotate around the shaft (3-3) by a certain angle, so that the upper laser measuring instrument (10-1) is aligned with the laser sensing target on the roadway roof. At this time, the axis of the main unit (1) coincides with the drilling axis, the positioning plate (2-3) moves upward and close to the roadway roof, and the push rod (2-1) presses against the roadway roof to securely fix the equipment in the roadway. S4. Start drilling: The propulsion disc (4-3) lifts the main unit (1) upward and contacts the top of the roadway. The cutter head (1-1) is started to begin drilling. The cut rock debris is discharged into the roadway along the slag discharge channel under the action of gravity. When the drilling depth reaches the length of one pipe section, the anti-reverse device (4-6) on the frame (4-1) locks the back shield (1-4) to prevent the main unit (1) from sliding down. The propulsion cylinder (4-2) drives the propulsion disc (4-3) back to the lower stop point. S5. Install the first pipe section: Use a forklift to place the first pipe section (9) onto the push plate (4-3) and extend the pipeline simultaneously; S6, Second stroke drilling: The pusher disc (4-3) lifts the pipe section (9) and the main unit (1) in S5 upward. When the drilling depth reaches the length of one pipe section, the anti-reverse device (4-6) locks the pipe section (9) to prevent the pipe section (9) and the main unit (1) from sliding down. The pusher disc (4-3) returns to the lower dead center. S7. Install the second pipe section: Place the second pipe section (9) onto the push plate (4-3) to extend the pipeline simultaneously; S8. Cyclic drilling: Repeat steps S5 to S7 until drilling reaches the designed depth; S9. Main Unit Retraction: Under the action of gravity, the main unit (1) and pipe section (9) reach the lower dead point with the propulsion disk (4-3). The anti-retraction device (4-6) locks the second to last pipe section (9), and the first to last pipe section (9) is removed. The propulsion disk (4-3) reaches the upper dead point, and the anti-retraction device (4-6) is released. The above process is repeated until all pipe sections (9) are removed, and the main unit (1) and propulsion disk (4-3) return to the lower dead point. S10, Main Unit Transportation: The overturning system (8) puts the main unit (1) into transportation mode, drives it away from the tunnel, and completes all drilling procedures.

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