Multi-layer rear matching system for full-section vertical shaft reaming heading machine

Abstract

The invention discloses a multi-layer rear matching system for a full-section vertical shaft reaming heading machine, and belongs to the technical field of heading equipment. Comprising a vertical shaft heading machine, the vertical shaft heading machine is composed of a heading machine main machine and a rear matching system, and the rear matching system sequentially comprises an equipment maintenance platform, an equipment maintenance platform and a control system from top to bottom on the top of a vertical shaft in the direction towards the heading machine main machine; the cable platform is protected; a transformation control platform; supporting the reserved platform; a water vapor storage platform; a hydraulically driven platform. By means of the method, reasonable arrangement and efficient utilization of different construction materials and mechanical equipment are achieved, it is guaranteed that vertical shaft construction operation procedures are carried out orderly, cooperative dispatching of personnel, materials and equipment in the construction process of the full-section vertical shaft expanding excavation heading machine is guaranteed, and favorable conditions are provided for safe and efficient heading of the vertical shaft.

Description

Technical Field

[0001] The invention relates to a multi-level rear supporting system for a full-section vertical shaft reaming tunneling machine, belonging to the technical field of tunneling equipment. Background Art

[0002] Pumped storage, with its superior performance in many aspects such as mature technology, excellent economy, large-scale development conditions and flexible regulation, has gradually become an important foundation for supporting the large-scale development and high-proportion utilization of wind and solar power. Its development and construction has been strongly supported by countries around the world.

[0003] At present, the construction of pumped storage power stations requires the excavation of vertical shafts as water inlets and outlets, and the quality and safety of the excavation have a decisive impact on the overall operation of the pumped storage power station. The vertical shafts of pumped storage power stations are mainly excavated by directional drilling, reverse drilling, and shaft reaming and boring machine methods. Among them, the shaft reaming and boring machine, as a representative technology and equipment of the development direction of "less manpower, mechanization, standardization, and intelligence", has outstanding advantages in quality, construction period, safety, environmental protection, and civilized construction. At present, it has become the preferred method and development trend of shaft excavation construction of pumped storage power stations in my country.

[0004] In the early days, the excavation depth of shaft boring machines was short and the structure and function were simple. The types and quantity of people, machines and materials required were relatively small, and they could be transported to the rear of the main drive system by hoisting and simply stacked to meet the construction needs. However, in recent years, as the excavation depth of shaft boring machines has become greater and the structure and function have become more complex, the types and quantity of people, machines and materials required for the shaft have become greater and greater. It is difficult to meet the safe and efficient excavation needs of full-section shaft expansion boring machines by hoisting and simple stacking.

[0005] In order to efficiently transport and reasonably allocate the people, machines and materials required for full-section shaft construction, domestic scholars have conducted a lot of research and analysis on the optimization design of the rear-end supporting system of shaft boring machines. For example, the Chinese patent with publication number CN117211796A proposes a shaft boring machine and its installation, operation and disassembly method, which improves the installation, operation and disassembly efficiency of the rear-end supporting system by installing the rear-end supporting system on the hoisting plate group. However, this method does not involve the optimization design of the rear-end supporting system structure and the improvement of material transportation and allocation efficiency.

[0006] For example, the Chinese patent with publication number CN220451878 U proposes a construction structure for shield machine integral launch, which can reduce the multiple connection and conversion of the rear supporting system of the tunnel boring machine, and help to achieve the overall launch of the tunnel boring machine. However, this structure is only applicable to shield tunnel boring machines for horizontal excavation, and cannot meet the optimization design requirements of the rear supporting system of the shaft tunnel boring machine for vertical excavation.

[0007] For another example, the Chinese patent with publication number CN115306394 A proposes a rear supporting platform of a shaft boring machine with walking and stabilizing functions. By arranging retractable walking mechanisms and rollers on the upper and lower surfaces of each rear supporting platform, this method can enable the rear supporting platform to cross obstacles on the tunnel wall, thereby ensuring the continuity and efficiency of the shaft construction. However, it cannot meet the requirements of optimized design of the rear supporting system and reasonable arrangement of man, machine and objects.

[0008] For another example, the Chinese patent with publication number CN217206450 U proposes a rear-mounted hoisting platform leveling device for a shaft boring machine, which can stabilize the hoisting platform mechanism, save the time of lowering the hoisting platform, and solve the problems of blocked slag discharge channel and interference between the slag discharge bucket and the hoisting platform. However, the device is mainly suitable for shaft boring machines that use the top slag discharge method, and it is difficult to meet the construction needs of shaft expansion boring machines that use the bottom slag discharge method.

[0009] In summary, the existing optimization design scheme of the supporting system of the shaft boring machine is difficult to meet the requirements of the reasonable arrangement of man, machine and materials in the shaft boring construction, and has become a key problem restricting the safe and efficient excavation of the shaft of the pumped-storage power station. Summary of the invention

[0010] The technical problem to be solved by the present invention is to provide a multi-level rear-end supporting system for a full-section shaft expansion tunneling machine, which solves the problem that the existing optimization design scheme of the rear-end supporting system of the shaft tunneling machine in the prior art is difficult to meet the reasonable layout requirements of man-machine-object in shaft tunneling construction, which has become a key problem restricting the safe and efficient tunneling of the shaft of a pumped-storage power station.

[0011] The technical problem to be solved by the present invention is achieved by adopting the following technical solution: a multi-level rear-end supporting system for a full-section shaft reaming tunneling machine, comprising a shaft tunneling machine, the shaft tunneling machine is composed of a tunneling machine main machine and a rear-end supporting system, wherein the rear-end supporting system comprises, in order from top to bottom along the direction toward the tunneling machine main machine at the top of the shaft: Equipment maintenance platform, used for maintenance of instruments and equipment; Protective cable platform for installing protective cables; Transformer control platform, used to arrange electrical equipment; The support reserved platform is used to support the side wall of the shaft after excavation; A water and gas storage platform for supplying water and gas required during the excavation process of the shaft reamer; Hydraulic drive platform, used to provide hydraulic drive for the main engine of the tunnel boring machine; Among them, the rear supporting system also includes a personnel channel, a material channel, a guide channel and a ventilation channel extending from the top of the shaft to the top of the cutter head of the tunnel boring machine main body. The personnel channel, material channel, guide channel and ventilation channel are respectively used for personnel entry and exit, material transportation, tunneling guidance and shaft ventilation.

[0012] Preferably, the rear supporting system is connected to the full-face shaft boring machine by a telescopic hose.

[0013] Preferably, the equipment maintenance platform is provided with: The maintenance panel is located on one side of the equipment maintenance platform and is used for pipeline maintenance and spraying support. Two straightening wheels are respectively arranged on both sides of the equipment maintenance platform to ensure the stability of the equipment maintenance platform; The frame is erected on the equipment maintenance platform; Guardrails are installed on the periphery of the equipment maintenance platform; Wherein, the frame and guardrail are both made of carbon steel.

[0014] Preferably, the protective cable platform is provided with a plurality of platform stabilizing devices which are respectively located around the protective cable platform, an auxiliary crane is arranged at the center position of the platform stabilizing device, high-voltage cables and cable boxes are arranged on one side of the auxiliary crane, the guide channel is located on both sides of the high-voltage cables, and a cable channel and an air duct reel are also arranged on one side of the auxiliary crane.

[0015] Preferably, the transformer control platform is provided with a water circulation cooling system arranged at the center of the transformer control platform, a switch cabinet is arranged on one side of the water circulation cooling system, and an air storage cylinder is arranged on the other side, and a frequency conversion cabinet is arranged on one side of the switch cabinet, and a control cabinet is arranged on one side of the air storage cylinder.

[0016] Preferably, the support reserved platform is respectively provided with a pneumatic anchor drill, a mortar anchor, a steel mesh and a concrete sprayer, the pneumatic anchor drill is used to embed the mortar anchor into the rock mass of the side wall of the shaft, the steel mesh is used to be erected on the surface of the rock mass of the side wall of the shaft to prevent the cave wall from collapsing, and the concrete sprayer is used to spray the mixed material on the outer layer of the steel mesh.

[0017] Preferably, an external water tank is arranged at the center of the water vapor storage platform, which is transported to the front of the cutter disc through a pipeline and used for cooling the cutter disc and preventing dust and cooling down. An air storage tank is arranged on one side of the external water tank, and two grouting pumps are arranged under the air storage tank.

[0018] Preferably, a hydraulic pump station is arranged at the center of the hydraulic drive platform, an internal water tank and an internal water pump station are arranged on one side of the hydraulic pump station, a pipeline channel and a lower ladder are arranged on one side of the internal water tank and the internal water pump station, the ventilation channel is located on one side of the hydraulic pump station, and a knife transport channel is also provided on one side of the ventilation channel.

[0019] Preferably, the lower ladders are arranged in a staggered manner and included in the personnel passage for transporting construction personnel; The material channel transports the material to the working surface through the bucket; A flexible air duct is installed in the ventilation channel to transport fresh air to the working surface; A laser target and an infrared device are installed in the guide channel for measuring the shaft axis.

[0020] The beneficial effects of the present invention are: 1. The telescopic hose can be extended to ensure the coordinated progress of shaft excavation and tunnel wall support. When the excavation speed of the shaft expansion machine is greater than the speed of the shaft tunnel wall surrounding rock support, it can effectively avoid the tunneling machine stopping to wait for tunnel wall support, which will reduce the excavation efficiency and delay the project schedule.

[0021] 2. The equipment maintenance platform, protective cable platform, transformer control platform, support reserved platform, water and gas storage platform, and hydraulic drive platform are arranged from top to bottom from the top of the shaft to the rear of the main drive. The structural levels and functional areas are clearly divided, which realizes the reasonable arrangement and efficient utilization of different construction materials and mechanical equipment, and ensures the orderly progress of the shaft construction operation process.

[0022] 3. The personnel passage, material passage, guide passage and ventilation passage extend from the top of the shaft to the rear of the cutter head of the tunnel boring machine, realizing the effective separation of personnel entry and exit, material transportation, tunnel boring guidance and shaft ventilation, ensuring the coordinated dispatch of personnel, materials and equipment during the construction of the full-section shaft expansion tunnel boring machine, and providing favorable conditions for safe and efficient shaft excavation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the equipment maintenance platform in the present invention; Figure 3 It is a structural schematic diagram of the cable protection platform in the present invention; Figure 4 It is a structural schematic diagram of the voltage transformation control platform in the present invention; Figure 5 It is a structural schematic diagram of the support reserved platform in the present invention; Figure 6 It is a structural schematic diagram of the water vapor storage platform in the present invention; Figure 7 It is a structural schematic diagram of the hydraulic drive platform of the present invention.

[0024] In the figure: 1. Shaft expansion boring machine; 2. Boring machine main machine; 3. Rear supporting equipment; 4. Equipment maintenance platform; 5. Protective cable platform; 6. Voltage transformer control platform; 7. Support reserved platform; 8. Water and gas storage platform; 9. Hydraulic drive platform; 10. Personnel passage; 11. Material passage; 12. Guide passage; 13. Ventilation passage; 14. Telescopic hose; 15. Maintenance tray; 16. Righting wheel; 17. Frame; 18. Guardrail; 19. Platform stabilizing device; 20. Auxiliary crane; 21. High-voltage line 1. Cable; 22. Cable box; 23. Cable channel; 24. Air duct drum; 25. Water circulation cooling system; 26. Switch cabinet; 27. Frequency converter cabinet; 28. Air storage cylinder; 29. ​​Control cabinet; 30. Pneumatic anchor drill; 31. Mortar anchor; 32. Steel mesh; 33. Concrete spraying machine; 34. Mixed spraying material; 35. External water tank; 36. Gas storage tank; 37. Grouting pump; 38. Hydraulic pump station; 39. Internal water tank; 40. Internal water pump station; 41. Pipeline channel; 42. Lower ladder; 43. Knife transport channel. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0026] like Figure 1 and Figure 2 As shown, a multi-level rear-end supporting system for a full-section shaft reaming tunnel boring machine 1 includes a shaft tunnel boring machine, which is composed of a tunnel boring machine main machine 2 and a rear-end supporting system, wherein the rear-end supporting system includes, from top to bottom in the direction toward the tunnel boring machine main machine 2 at the top of the shaft: Equipment maintenance platform 4, used for maintenance of instruments and equipment; A protective cable platform 5, used for installing protective cables; Transformer control platform 6, used for arranging electrical equipment; A support reserved platform 7 is used to support the side wall of the shaft after excavation; The water and gas storage platform 8 is used to supply the water and gas required during the excavation process of the shaft reamer 1; A hydraulic drive platform 9, used to provide hydraulic drive for the tunnel boring machine main unit 2; Among them, the rear supporting system also includes a personnel channel 10, a material channel 11, a guide channel 12 and a ventilation channel 13 extending from the top of the shaft to the top of the cutter head of the tunnel boring machine main body 2. The personnel channel 10, the material channel 11, the guide channel 12 and the ventilation channel 13 are respectively used for personnel entry and exit, material transportation, tunneling guidance and shaft ventilation.

[0027] Equipment maintenance platform 4, protective cable platform 5, transformer control platform 6, support reserved platform 7, water and gas storage platform 8 and hydraulic drive platform 9 are arranged in sequence from top to bottom from the top of the shaft to the rear of the main drive. The structural levels and functional areas are clearly divided, which realizes the reasonable arrangement and efficient utilization of different construction materials and mechanical equipment, and ensures the orderly progress of the shaft construction operation process.

[0028] The personnel channel 10, material channel 11, guide channel 12 and ventilation channel 13 extend from the top of the shaft to the rear of the cutter head of the tunnel boring machine, realizing the effective separation of personnel entry and exit, material transportation, tunnel boring guide and shaft ventilation, ensuring the coordinated dispatch of personnel, materials and equipment during the construction of the full-section shaft expansion tunnel boring machine, providing favorable conditions for safe and efficient shaft tunneling, thereby meeting the requirements for the reasonable arrangement of man-machine-object in shaft tunneling construction.

[0029] like Figure 1 and Figure 2 As shown, the rear supporting system is connected to the full-section shaft boring machine by a telescopic hose 14, and the telescopic hose 14 can be extended to ensure the coordinated progress of shaft excavation and tunnel wall support. When the excavation speed of the shaft boring machine is greater than the speed of the surrounding rock support of the shaft tunnel wall, the reduction in excavation efficiency and delay in project schedule caused by the tunnel boring machine stopping to wait for tunnel wall support can be effectively avoided.

[0030] like Figure 1 and 2 As shown, the equipment maintenance platform 4 is provided with: The maintenance panel 15 is arranged on one side of the equipment maintenance platform 4 and is used for pipeline maintenance and supplementary spraying support; Two straightening wheels 16 are symmetrically arranged on both sides of the equipment maintenance platform 4 to provide gravity to ensure the stability of the equipment maintenance platform 4; The frame 17 is set up on the equipment maintenance platform 4; A guardrail 18 is provided on the outer periphery of the equipment maintenance platform 4; The frame 17 and the guardrail 18 are both made of Q235B carbon steel to meet the bearing capacity and stability requirements of the equipment maintenance platform 4 .

[0031] By setting up the equipment maintenance platform 4, the maintenance requirements for the main engine 2, pipelines and supports of the tunnel boring machine are met, making the maintenance operation of the staff more convenient.

[0032] like Figure 3As shown, the protective cable platform 5 is provided with four platform stabilizing devices 19 respectively located around the protective cable platform 5, an auxiliary crane 20 is arranged at the center of the protective cable platform 5, a high-voltage cable 21 and a cable box 22 are arranged on one side of the auxiliary crane 20, the guide channel 12 on the protective cable platform 5 is located on both sides of the high-voltage cable 21, a cable channel 23 and an air duct drum 24 are also arranged on one side of the auxiliary crane 20, and the material channel 11 on the protective cable platform 5 is located at the lower part of the air duct drum 24. The integrated protective cable platform 5 is not only convenient for cable equipment and line maintenance, but also can prevent safety accidents caused by high-voltage electricity leakage.

[0033] Among them, the platform stabilizing device 19 includes a roller (not shown in the figure) close to the side wall of the shaft, and the roller (not shown in the figure) is connected to the protective cable platform 5 through a connecting rod (not shown in the figure), so that while limiting the horizontal shaking of the protective cable platform 6, it does not affect the vertical movement of the subsequent supporting system, thereby enhancing the structural stability of the protective cable platform 5.

[0034] like Figure 4 As shown, the transformer control platform 6 is provided with a water circulation cooling system 25 arranged at the center of the transformer control platform 6. The water circulation cooling system 25 is used to accelerate the heat dissipation of the equipment on the transformer control platform 6 to avoid overheating of the equipment. Figure 4 From a viewing angle, that is, a top-down viewing angle, a switch cabinet 26 is arranged on the left side of the water circulation cooling system 25 , an air storage cylinder 28 is arranged on the right side, a frequency conversion cabinet 27 is arranged on the lower side of the switch cabinet 26 , and a control cabinet 29 is arranged on one side of the air storage cylinder 28 .

[0035] The voltage and power of the tunnel boring machine main unit 2 are adjusted by the switch cabinet 26, the frequency conversion cabinet 27 and the control cabinet 29, which reduces the difficulty of power adjustment of the tunnel boring machine main unit 2 during the tunneling process, making the tunneling process easier. Among them, the air storage cylinder 28 can not only continuously provide fresh air for the front of the tunnel boring machine and the inside of the shaft, but also take away the heat from the tunnel boring machine main unit and the shaft, thereby reducing the temperature inside the shaft.

[0036] like Figure 5 As shown, the support reserved platform 7 is respectively provided with a pneumatic anchor drill 30, a mortar anchor 31, a steel mesh 32 and a concrete sprayer 33. The pneumatic anchor drill 30 is used to embed the mortar anchor 31 into the rock mass of the side wall of the shaft, the steel mesh 32 is used to be erected on the surface of the rock mass of the side wall of the shaft, and the concrete sprayer 33 is used to spray the mixed spray material 34 on the outer layer of the steel mesh 32, so as to reinforce the shaft wall and prevent collapse.

[0037] like Figure 6As shown, an external water tank 35 is arranged at the center of the water vapor storage platform 8, which is transported to the front of the cutterhead through a pipeline and is used to cool the cutterhead and prevent dust and reduce temperature. An air storage tank 36 is arranged on one side of the external water tank 35, and two grouting pumps 37 are arranged under the air storage tank 36. The external water tank 35 cools the cutterhead of the shaft boring machine by supplying water, which can prevent excessive wear of the tool or structural damage of the cutterhead, reduce the concentration of rock powder suspended in the air, and avoid excessive temperature in front of the boring machine. The grouting pump 37 is used to supply cement mortar for supporting the shaft wall and filling the excavation gap.

[0038] like Figure 7 As shown, a hydraulic pump station 38 for driving the hydraulic cylinder is arranged at the center of the hydraulic drive platform 9, an internal water tank 39 and an internal water pump station 40 are arranged on one side of the hydraulic pump station 38, a pipeline channel 41 and a lower ladder 42 are arranged on one side of the internal water tank 39 and the internal water pump station 40, the ventilation channel 13 is located on one side of the hydraulic pump station 38, and a knife transport channel 43 is also provided on one side of the ventilation channel 13.

[0039] like Figures 1 to 7 As shown, the lower ladders 42 are staggered and included in the personnel passage 10, and are used to transport construction personnel and prevent high-altitude falls across the platform; The material channel 11 transports the material to the working surface through the bucket, which is convenient to operate; A flexible air duct is installed in the ventilation channel 13 for conveying fresh air to the working surface. The setting of the flexible air duct can evenly supply air to the working surface and can flexibly meet different installation requirements in the shaft.

[0040] A laser target and an infrared device are installed in the guide channel 12 for more convenient, rapid and accurate measurement of the shaft axis.

[0041] In summary, the present invention has the following beneficial effects: 1. The telescopic hose 14 can be extended to ensure that the shaft excavation and the tunnel wall support are carried out in coordination. When the excavation speed of the shaft expansion machine 1 is greater than the speed of the surrounding rock support of the shaft tunnel wall, it can effectively avoid the tunneling machine stopping to wait for the tunnel wall support, which will cause the excavation efficiency to decrease and the project schedule to be delayed; 2. Equipment maintenance platform 4, protective cable platform 5, transformer control platform 6, support reserved platform 7, water and gas storage platform 8, hydraulic drive platform 9 are arranged from top to bottom from the top of the shaft to the rear of the main drive, with clear structural levels and functional areas, realizing the reasonable arrangement and efficient use of different construction materials and mechanical equipment, and ensuring the orderly progress of the shaft construction process; 3. The personnel channel 10, material channel 11, guide channel 12 and ventilation channel 13 extend from the top of the shaft to the rear of the cutter head of the tunnel boring machine, realizing the effective separation of personnel entry and exit, material transportation, tunnel boring guidance and shaft ventilation, ensuring the coordinated dispatch of personnel, materials and equipment during the construction of the full-section shaft expansion tunnel boring machine, providing favorable conditions for safe and efficient shaft tunneling, thus helping to solve the problems of untimely transportation of people, machines and materials, unreasonable layout and inconvenient dispatching during shaft tunneling.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-level rear-end supporting system for a full-section shaft reamer, characterized in that: The invention comprises a shaft boring machine, the shaft boring machine comprising a boring machine main machine (2) and a rear supporting system, wherein the rear supporting system comprises, in order from top to bottom in a direction toward the boring machine main machine (2) at the top of the shaft: Equipment maintenance platform (4), used for maintenance of instruments and equipment; A protective cable platform (5) for installing protective cables; A transformer control platform (6) for arranging electrical equipment; A support reserved platform (7) is used to support the side wall of the vertical shaft after excavation; A water and gas storage platform (8) is used to supply water and gas required by the shaft expansion machine (1) during the excavation process; A hydraulic drive platform (9) for providing hydraulic drive for the tunnel boring machine main unit (2); The rear supporting system further comprises a personnel passage (10), a material passage (11), a guide passage (12) and a ventilation passage (13) extending from the top of the shaft to the top of the cutterhead of the main machine (2) of the tunnel boring machine, wherein the personnel passage (10), the material passage (11), the guide passage (12) and the ventilation passage (13) are respectively used for personnel entry and exit, material transportation, tunneling guidance and shaft ventilation.

2. A multi-level rear-end supporting system for a full-face shaft reaming tunnel boring machine according to claim 1, characterized in that: The rear supporting system is connected to the full-face shaft boring machine by a telescopic hose (14).

3. A multi-level rear-end supporting system for a full-face shaft reaming tunnel boring machine according to claim 1, characterized in that: The equipment maintenance platform (4) is provided with: An inspection panel (15) is arranged on one side of the equipment inspection platform (4) and is used for inspecting pipelines and performing spraying support; Two straightening wheels (16) are respectively arranged on both sides of the equipment maintenance platform (4) and are used to ensure the stability of the equipment maintenance platform (4); A frame (17) is erected on the equipment maintenance platform (4); A guardrail (18) is arranged on the outer periphery of the equipment maintenance platform (4); Wherein, the frame (17) and the guardrail (18) are both made of carbon steel.

4. The multi-level rear-end supporting system for a full-face shaft reaming machine according to claim 1, characterized in that: The protective cable platform (5) is provided with a plurality of platform stabilizing devices (19) respectively located around the protective cable platform (5); an auxiliary crane (20) is arranged at the center of the platform stabilizing device (19); a high-voltage cable (21) and a cable box (22) are arranged on one side of the auxiliary crane (20); the guide channel (12) is located on both sides of the high-voltage cable (21); and a cable channel (23) and an air duct reel (24) are also arranged on one side of the auxiliary crane (20).

5. The multi-level rear-end supporting system for a full-face shaft reaming tunnel boring machine according to claim 1, characterized in that: The transformer control platform (6) is provided with a water circulation cooling system (25) arranged at the center of the transformer control platform (6); a switch cabinet (26) is arranged on one side of the water circulation cooling system (25), and an air storage cylinder (28) is arranged on the other side; a frequency conversion cabinet (27) is arranged on one side of the switch cabinet (26), and a control cabinet (29) is arranged on one side of the air storage cylinder (28).

6. The multi-level rear-end supporting system for a full-face shaft reaming tunnel boring machine according to claim 1, characterized in that: The support reserved platform (7) is respectively provided with a pneumatic anchor drill (30), a mortar anchor (31), a steel mesh (32) and a concrete spraying machine (33); the pneumatic anchor drill (30) is used to embed the mortar anchor (31) into the rock mass of the side wall of the shaft; the steel mesh (32) is used to be erected on the surface of the rock mass of the side wall of the shaft to prevent the cave wall from collapsing; and the concrete spraying machine (33) is used to spray a mixed spray material (34) on the outer layer of the steel mesh (32).

7. The multi-level rear-end supporting system for a full-face shaft reaming tunnel boring machine according to claim 1, characterized in that: An external water tank (35) is arranged at the center of the water and gas storage platform (8), an air storage tank (36) is arranged on one side of the external water tank (35), and two grouting pumps (37) are arranged below the air storage tank (36).

8. The multi-level rear-end supporting system for a full-face shaft reaming tunnel boring machine according to claim 1, characterized in that: A hydraulic pump station (38) is arranged at the center of the hydraulic drive platform (9), an inner water tank (39) and an inner water pump station (40) are arranged on one side of the hydraulic pump station (38), a pipeline channel (41) and a lower ladder (42) are arranged on one side of the inner water tank (39) and the inner water pump station (40), the ventilation channel (13) is located on one side of the hydraulic pump station (38), and a knife transport channel (43) is also arranged on one side of the ventilation channel (13).

9. A multi-level rear-end supporting system for a full-face shaft reaming tunnel boring machine according to claim 8, characterized in that: The lower ladders (42) are arranged in a staggered manner and are included in the personnel passage (10) for transporting construction personnel; The material channel (11) transports the material to the working surface through the bucket; A flexible air duct is installed in the ventilation channel (13) for conveying fresh air to the working surface; A laser target and an infrared device are installed in the guide channel (12) for measuring the shaft axis.

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