A multi-level rear support system for a full-face shaft reaming tunneling machine

Abstract

The present invention discloses a multi-level rear support system for a full-face shaft reaming tunneling machine, belonging to the technical field of tunneling equipment. The rear support system successively includes, from top to bottom along the direction towards the tunneling machine main body at the top of the shaft: an equipment maintenance platform; a protective cable platform; a voltage transformation control platform; a support reservation platform; a water and gas storage platform; a hydraulic drive platform. Through the present invention, the reasonable layout and efficient utilization of different construction materials and mechanical equipment are realized, the orderly progress of shaft construction operations is ensured, the coordinated scheduling of personnel, materials and equipment during the construction process of the full-face shaft reaming tunneling machine is ensured, and favorable conditions are provided for the safe and efficient tunneling of the shaft.

Description

Technical Field

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

[0002] Pumped storage has gradually become an important foundation for supporting large-scale development and high-proportion utilization of wind and light due to its many excellent performances such as mature technology, good economy, large-scale development conditions, and flexible regulation. Its development and construction have received strong support from countries around the world.

[0003] At present, the construction of pumped storage power stations requires the excavation of shafts as inlets / outlets, and the excavation forming quality and safety have a decisive impact on the overall operation of pumped storage power stations. The shafts of pumped storage power stations are mainly excavated by the directional drilling method, the raise boring method, and the shaft reaming tunneling machine method. Among them, the shaft reaming tunneling machine, as a representative technology and equipment in the development direction of "less personnel, mechanization, standardization, and intelligence", has outstanding advantages in terms of quality, construction period, safety, environmental protection, and civilized construction, and has currently become the preferred method and development trend for shaft tunneling construction of pumped storage power stations in China.

[0004] In the early stage, the tunneling depth of shaft tunneling machines was short and the structural functions were single. The types and quantities of personnel, machines, and materials required were relatively small, and simple stacking behind the main drive system after hoisting and transportation could meet the construction requirements. However, in recent years, as the tunneling depth of shaft tunneling machines has become larger and the structural functions have become more complex, the types and quantities of personnel, machines, and materials required for shafts have become larger, and it has been difficult to meet the safe and efficient tunneling requirements of full-face shaft reaming tunneling machines through hoisting and transportation and simple stacking methods.

[0005] In order to efficiently transport and rationally allocate the personnel, machines, and materials required for full-face shaft construction, domestic scholars have carried out a large number of research and analysis on the optimization design of the rear support system of shaft tunneling machines. For example, the Chinese patent with the publication number CN117211796A proposes a shaft tunneling machine and its installation, working, and disassembly methods, which improve the installation, working, and disassembly efficiency of the rear support system by installing the rear support system on the hanging tray group. However, this method does not involve the structural optimization design of the rear support system and the improvement of the material transportation and allocation efficiency.

[0006] Again, the Chinese patent with the publication number CN220451878 U proposes a construction structure for the overall launching of a shield, which can reduce the multiple connection conversions of the rear support system of the tunneling machine and contribute to the overall launching of the tunneling machine. However, this structure is only applicable to shield tunneling machines for horizontal tunneling and cannot meet the optimization design requirements of the rear support system of shaft tunneling machines for vertical tunneling.

[0007] For another example, a Chinese patent with the publication number CN115306394 A proposes a rear support platform for a shaft tunneling machine with walking and stabilizing functions. By setting retractable walking mechanisms and rollers on the upper and lower surfaces of each rear support platform, this method enables the rear support platform to cross obstacles on the tunnel wall, ensuring the continuity and efficiency of shaft construction. However, it cannot meet the requirements of optimizing the design of the rear support system and the reasonable layout of humans, machines, and materials.

[0008] For another example, a Chinese patent with the publication number CN217206450 U proposes a leveling device for the rear support hanging platform of a shaft tunneling machine, which can stabilize the hanging platform mechanism, save the time for lowering the hanging platform, and solve the problems of unsmooth slag discharge channels and interference between the slag discharge bucket and the hanging platform. However, this device is mainly applicable to shaft tunneling machines using the top slag discharge method and is difficult to meet the construction requirements of shaft reaming tunneling machines with bottom slag discharge.

[0009] In summary, the existing optimized design solutions for the rear support system of shaft tunneling machines are difficult to meet the requirements of the reasonable layout of humans, machines, and materials in shaft tunneling construction, and have become the key problems restricting the safe and efficient tunneling of shafts in pumped storage power stations. Summary of the Invention

[0010] The technical problem to be solved by the present invention is as follows: to provide a multi-level rear support system for a full-face shaft reaming tunneling machine, which solves the problem that the existing optimized design solutions for the rear support system of shaft tunneling machines in the prior art are difficult to meet the requirements of the reasonable layout of humans, machines, and materials in shaft tunneling construction, and have become the key problems restricting the safe and efficient tunneling of shafts in pumped storage power stations.

[0011] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions: a multi-level rear support system for a full-face shaft reaming tunneling machine, the rear support system sequentially includes, from top to bottom along the direction towards the tunneling machine main body at the top of the shaft:

[0012] An equipment maintenance platform for maintaining instruments and equipment;

[0013] A protective cable platform for installing protective cables;

[0014] A voltage transformation and control platform for arranging electrical equipment;

[0015] A support reservation platform for supporting the side wall of the excavated shaft;

[0016] A water and gas storage platform for supplying water and gas required during the excavation of the shaft reaming tunneling machine;

[0017] A hydraulic drive platform for providing hydraulic drive for the tunneling machine main body;

[0018] Among them, the rear support system further includes a personnel passage, a material passage, a guiding passage, and a ventilation passage extending from the top of the vertical shaft to the rear of the cutter head of the main tunneling machine. The personnel passage, the material passage, the guiding passage, and the ventilation passage are respectively used for personnel access, material transportation, tunneling guidance, and vertical shaft ventilation.

[0019] Preferably, a telescopic hose is used to connect the rear support system and the main tunneling machine.

[0020] Preferably, the following are provided on the equipment maintenance platform:

[0021] A maintenance panel, arranged on one side of the equipment maintenance platform, for maintaining pipelines and supplementary spraying support;

[0022] Two centering wheels, respectively arranged on both sides of the equipment maintenance platform, for ensuring the stability of the equipment maintenance platform;

[0023] A framework, erected on the equipment maintenance platform;

[0024] A guardrail, arranged on the outer periphery of the equipment maintenance platform;

[0025] Among them, both the framework and the guardrail are made of carbon steel.

[0026] Preferably, a number of platform stabilizing devices are provided on the protective cable platform, respectively located around the protective cable platform. An auxiliary crane is arranged at the central position of the platform stabilizing devices. A high-voltage cable and a cable box are arranged on one side of the auxiliary crane. The guiding passage is located on both sides of the high-voltage cable. A cable passage and a wind pipe reel are also arranged on one side of the auxiliary crane.

[0027] Preferably, a water circulation cooling system is arranged at the central position of the voltage transformation 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. 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.

[0028] Preferably, a pneumatic bolt drill, a mortar bolt, a steel mesh sheet, and a concrete spraying machine are respectively arranged on the support reserved platform. The pneumatic bolt drill is used to embed the mortar bolt into the rock mass of the side wall of the vertical shaft. The steel mesh sheet is used to be erected on the surface of the rock mass of the side wall of the vertical shaft to prevent the cave wall from collapsing. The concrete spraying machine is used to spray sprayed mixture on the outer layer of the steel mesh sheet.

[0029] Preferably, an external water tank is arranged at the central position of the water and gas storage platform, and is transported to the front of the cutter head through pipelines and is used for cooling the cutter head and preventing dust and reducing temperature. An air storage tank is arranged on one side of the external water tank, and two grouting pumps are arranged below the air storage tank.

[0030] Preferably, a hydraulic pump station is arranged at the central position of the hydraulic drive platform. An inner water tank and an inner 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 inner water tank and the inner water pump station. The ventilation channel is located on one side of the hydraulic pump station, and a tool feed channel is further arranged on one side of the ventilation channel.

[0031] Preferably, the lower ladders are arranged in a staggered manner and are included in the personnel passage for transporting construction workers.

[0032] The material passage transports materials to the working surface through a hanging bucket.

[0033] A flexible air duct is installed in the ventilation channel for delivering fresh air to the working surface.

[0034] A laser target and an infrared device are installed in the guiding channel for measuring the shaft axis.

[0035] The beneficial effects of the present invention are as follows:

[0036] 1. The telescopic hose can be extended to ensure the coordinated progress of shaft tunneling and shaft wall support. When the tunneling speed of the shaft reaming boring machine is greater than the shaft wall surrounding rock support speed, it can effectively avoid the boring machine from stopping to wait for shaft wall support, resulting in reduced tunneling efficiency and project schedule delay.

[0037] 2. The equipment maintenance platform, protective cable platform, voltage transformation control platform, support reserved platform, water and gas storage platform, and hydraulic drive platform are arranged from top to bottom of the shaft from the top of the shaft to the rear of the main drive in sequence. The structural levels and functional areas are clearly divided, realizing the reasonable arrangement and efficient utilization of different construction materials and mechanical equipment, and ensuring the orderly progress of shaft construction operations.

[0038] 3. The personnel passage, material passage, guiding passage, and ventilation passage extend from the top of the shaft to the rear of the cutter head of the boring machine, realizing the effective separation of personnel entry and exit, material transportation, tunneling guidance, and shaft ventilation, ensuring the coordinated scheduling of personnel, materials, and equipment during the construction process of the full-section shaft reaming boring machine, and providing favorable conditions for the safe and efficient tunneling of the shaft. Description of the Drawings

[0039] Figure 1 is a structural schematic diagram of the present invention;

[0040] Figure 2 is a structural schematic diagram of the equipment maintenance platform in the present invention;

[0041] Figure 3 is a structural schematic diagram of the protective cable platform in the present invention;

[0042] Figure 4 is a structural schematic diagram of the voltage transformation control platform in the present invention;

[0043] Figure 5 This is a schematic structural diagram of the support reserved platform in the present invention;

[0044] Figure 6 This is a schematic structural diagram of the water and gas storage platform in the present invention;

[0045] Figure 7 This is a schematic structural diagram of the hydraulic drive platform in the present invention.

[0046] In the figure: 1. Shaft reaming boring machine; 2. Boring machine main body; 3. Rear support equipment; 4. Equipment maintenance platform; 5. Protection cable platform; 6. 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 panel; 16. Centering wheel; 17. Frame; 18. Guardrail; 19. Platform stability device; 20. Auxiliary crane; 21. High-voltage cable; 22. Cable box; 23. Cable channel; 24. Air duct reel; 25. Water circulation cooling system; 26. Switch cabinet; 27. Frequency conversion cabinet; 28. Air storage cylinder; 29. Control cabinet; 30. Pneumatic rock bolt drill; 31. Mortar bolt; 32. Reinforcement mesh; 33. Concrete spraying machine; 34. Mixed spraying material; 35. Outer water tank; 36. Gas storage tank; 37. Grouting pump; 38. Hydraulic pump station; 39. Inner water tank; 40. Inner water pump station; 41. Pipeline channel; 42. Lower ladder; 43. Tool feed channel. Detailed implementation manners

[0047] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below with reference to specific drawings.

[0048] As shown in Figure 1 and Figure 2 A multi-level rear support system for a full-section shaft reaming boring machine, the rear support system includes, from top to bottom along the direction towards the boring machine main body 2 at the top of the shaft:

[0049] An equipment maintenance platform 4 for maintaining instrument equipment;

[0050] A protection cable platform 5 for installing protection cables;

[0051] A transformer control platform 6 for arranging electrical equipment;

[0052] A support reserved platform 7 for supporting the side wall of the shaft after excavation;

[0053] A water and gas storage platform 8 for supplying water and gas required during the excavation of the shaft reaming boring machine 1;

[0054] The hydraulic drive platform 9 is used to provide hydraulic drive for the main tunneling machine 2;

[0055] Among them, the back-up system further includes a personnel passage 10, a material passage 11, a guiding passage 12, and a ventilation passage 13 that extend from the top of the shaft to the rear of the cutter head of the main tunneling machine 2. The personnel passage 10, the material passage 11, the guiding passage 12, and the ventilation passage 13 are respectively used for personnel entry and exit, material transportation, tunneling guidance, and shaft ventilation.

[0056] The equipment maintenance platform 4, the protective cable platform 5, the transformer control platform 6, the support reserved platform 7, the water and gas storage platform 8, and the hydraulic drive platform 9 are arranged in sequence from the top of the shaft to the rear of the main drive from top to bottom. The structural levels and functional areas are clearly defined, realizing the reasonable layout and efficient utilization of different construction materials and mechanical equipment, and ensuring the orderly progress of the shaft construction operations.

[0057] The personnel passage 10, the material passage 11, the guiding passage 12, and the ventilation passage 13 extend from the top of the shaft to the rear of the cutter head of the tunneling machine, realizing the effective separation of personnel entry and exit, material transportation, tunneling guidance, and shaft ventilation, ensuring the coordinated scheduling of personnel, materials, and equipment during the construction of the full-section shaft expansion tunneling machine, providing favorable conditions for the safe and efficient tunneling of the shaft, and thus meeting the reasonable layout requirements of people-machine-materials in shaft tunneling construction.

[0058] Such as Figure 1 and Figure 2 As shown, a telescopic hose 14 is used to connect the back-up system and the main tunneling machine 2. The telescopic hose 14 can be extended to ensure the coordinated progress of shaft tunneling and tunnel wall support. When the tunneling speed of the shaft tunneling machine is greater than the tunnel wall surrounding rock support speed, it can effectively avoid the problems of reduced tunneling efficiency and project schedule delay caused by the tunneling machine waiting for tunnel wall support.

[0059] Such as Figure 1 and 2 As shown, the following are provided on the equipment maintenance platform 4:

[0060] A maintenance panel 15 is arranged on one side of the equipment maintenance platform 4 and is used for maintaining pipelines and supplementary spraying support;

[0061] Two centering wheels 16 are respectively symmetrically arranged on both sides of the equipment maintenance platform 4 and are used to provide gravity to ensure the stability of the equipment maintenance platform 4;

[0062] A frame 17 is erected on the equipment maintenance platform 4;

[0063] A guardrail 18 is arranged on the outer periphery of the equipment maintenance platform 4;

[0064] Among them, both the frame 17 and the guardrail 18 are made of Q235B carbon steel to meet the bearing capacity and stability requirements of the equipment maintenance platform 4.

[0065] By setting up the equipment maintenance platform 4, the maintenance requirements for the mainframe 2 of the roadheader, pipelines, and support are met, making the maintenance operations of the staff more convenient.

[0066] As Figure 3 shown, there are four platform stabilizing devices 19 respectively located around the protective cable platform 5 on 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 guiding channels 12 on the protective cable platform 5 are located on both sides of the high-voltage cable 21. A cable channel 23 and a wind pipe reel 24 are also arranged on one side of the auxiliary crane 20. The material channel 11 on the protective cable platform 5 is located below the wind pipe reel 24. Through the integrated protective cable platform 5, it is not only convenient for the maintenance of cable equipment and lines, but also can prevent safety accidents caused by high-voltage electricity leakage.

[0067] Among them, the platform stabilizing device 19 includes rollers (not shown in the figure) closely attached to the side wall of the shaft. The rollers (not shown in the figure) are connected to the protective cable platform 5 through connecting rods (not shown in the figure), so that while restricting the horizontal shaking of the protective cable platform 6, it does not affect the vertical movement of the rear support system, enhancing the structural stability of the protective cable platform 5.

[0068] As Figure 4 shown, a water circulation cooling system 25 is arranged at the center of the variable voltage control platform 6 on the variable voltage control platform 6. The water circulation cooling system 25 is used to accelerate the heat dissipation of the equipment on the variable voltage control platform 6 and avoid overheating of the equipment. From Figure 4 the perspective, that is, the top view perspective, a switch cabinet 26 is arranged on the left side of the water circulation cooling system 25, a wind 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 wind storage cylinder 28.

[0069] By cooperating with the switch cabinet 26, the frequency conversion cabinet 27, and the control cabinet 29 to adjust the voltage and power of the mainframe 2 of the roadheader, the difficulty of power adjustment during the tunneling process of the mainframe 2 of the roadheader is reduced, making the tunneling process easier. Among them, through the wind storage cylinder 28, not only can fresh air be continuously provided for the front of the roadheader and the inside of the shaft, but also the heat of the mainframe of the roadheader and the inside of the shaft can be taken away, playing a role in reducing the temperature inside the shaft.

[0070] As Figure 5As shown in the figure, a pneumatic bolt drill 30, a mortar bolt 31, a wire mesh 32, and a shotcrete machine 33 are respectively arranged on the reserved support platform 7. The pneumatic bolt drill 30 is used to embed the mortar bolt 31 into the rock mass on the side wall of the shaft. The wire mesh 32 is used to be erected on the surface of the rock mass on the side wall of the shaft. The shotcrete machine 33 is used to spray the shotcrete mixture 34 on the outer layer of the wire mesh 32, so as to reinforce the shaft wall and avoid collapse.

[0071] As Figure 6 shown, an outer water tank 35 is arranged at the central position of the water and gas storage platform 8, and is transported to the front of the cutter head through pipelines and is used for cooling the cutter head and preventing dust and reducing temperature. A gas storage tank 36 is arranged on one side of the outer water tank 35, and two grouting pumps 37 are arranged below the gas storage tank 36. The outer water tank 35 can cool the cutter head of the shaft tunneling machine through water supply, which can prevent excessive wear of the cutters or structural damage of the cutter head, reduce the concentration of rock powder suspended in the air, avoid too high temperature in front of the tunneling machine, and the grouting pump 37 is used to supply cement mortar for shaft wall support and filling the excavation gap.

[0072] As Figure 7 shown, a hydraulic pump station 38 for driving hydraulic cylinders is arranged at the central position 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 tool transport channel 43 is also arranged on one side of the ventilation channel 13.

[0073] As Figures 1 to 7 shown, the lower ladders 42 are arranged in a staggered manner and are included in the personnel passage 10, which is used to transport construction workers and prevent high-altitude falls across platforms;

[0074] The material passage 11 transports materials to the working surface through a hanging bucket, which is relatively convenient to operate;

[0075] A flexible air duct is installed in the ventilation channel 13, which is used to transport fresh air to the working surface. Among them, the setting of the flexible air duct can evenly supply air into the working surface and can flexibly meet different installation requirements in the shaft.

[0076] A laser target and an infrared device are installed in the guiding channel 12, which are used to measure the axis of the shaft more conveniently, quickly and accurately.

[0077] In summary, the present invention has the following beneficial effects:

[0078] 1. The telescopic hose 14 can be extended to ensure the coordinated progress of shaft tunneling and shaft wall support. When the tunneling speed of the shaft reaming tunneling machine 1 is greater than the shaft wall surrounding rock support speed, it can effectively avoid the tunneling machine from stopping and waiting for shaft wall support, resulting in reduced tunneling efficiency and project duration delay;

[0079] 2. The equipment maintenance platform, 4. The protective cable platform, 5. The voltage transformation control platform, 6. The support reserved platform, 7. The water and gas storage platform, 8. The hydraulic drive platform, and 9 are arranged from top to bottom in sequence from the top of the shaft to the rear of the main drive. The structural levels and functional areas are clearly divided, realizing the reasonable arrangement and efficient utilization of different construction materials and mechanical equipment, and ensuring the orderly progress of the shaft construction operation process;

[0080] 3. The personnel passage, 10. The material passage, 11. The guiding passage, and 13. The ventilation passage extend from the top of the shaft to the rear of the cutter head of the roadheader, realizing the effective separation of personnel entry and exit, material transportation, tunneling guidance, and shaft ventilation, ensuring the coordinated scheduling of personnel, materials, and equipment during the construction process of the full-section shaft expansion roadheader, providing favorable conditions for the safe and efficient tunneling of the shaft, and thus helping to solve problems such as untimely, unreasonable, and inconvenient scheduling of the transportation of people-machines-materials during the shaft tunneling process.

[0081] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope claimed by the present invention. The scope claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-level rear-end supporting system for a full-section shaft reamer, characterized in that: The rear supporting system comprises, in order from top to bottom along the direction toward the main machine (2) of the tunnel boring machine 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 rear 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 main machine (2) of the tunnel 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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