A dual-mode synchronous grouting system for tunnel boring machines

Abstract

This invention belongs to the field of tunnel boring machine (TBM) technology, specifically a dual-mode synchronous grouting system for TBMs, including a mixing module, a fluid conveying module, a single-liquid grouting module, a dual-liquid synchronous grouting module, and a fluid discharge module. The fluid conveying module is divided into two groups, respectively connected to the single-liquid grouting module and the dual-liquid synchronous grouting module. The mixing module is connected to the single-liquid grouting module and the dual-liquid synchronous grouting module through the fluid conveying module. Both the single-liquid grouting module and the dual-liquid synchronous grouting module are connected to a fluid discharge module. By utilizing the movement of the conveyor belt, combined with multiple sets of drainage holes to block the crushed stone, the coolant and crushed stone can be separated and recycled, facilitating operation by workers. Simultaneously, the drainage pipes discharge the coolant, reducing coolant sedimentation inside the tunnel and minimizing muddy conditions.

Description

Technical Field

[0001] This invention belongs to the field of tunnel boring machine technology, specifically a dual-mode synchronous grouting system for tunnel boring machines. Background Technology

[0002] Tunnel boring machines (TBMs) are a type of tunnel excavation equipment that uses the shield tunneling method in modern society. They are a very important part of subway construction projects and effectively increase the progress of excavation work.

[0003] A Chinese patent with publication number CN209277877U discloses a single-liquid and dual-liquid grouting composite synchronous grouting system for a tunnel boring machine (TBM). The TBM body includes a single-liquid grouting system, a dual-liquid grouting system, multiple first grouting ports, and at least one second grouting port. The first and second grouting ports are distributed on the end face of the tail of the TBM body. The single-liquid grouting system is connected to the corresponding first grouting port through a pipeline, and the dual-liquid grouting system is connected to the corresponding second grouting port through a pipeline.

[0004] In existing technology, during the excavation operation of a tunnel boring machine (TBM), heat is generated due to the continuous friction between the excavation cutter head and the soil layer. Therefore, water is needed to cool the excavation cutter head. At the same time, the soil and gravel excavated by the TBM are moved with the assistance of a conveyor belt. During the movement of the soil and gravel, residual liquid will drip into the tunnel after excavation, causing mud and affecting the passage of personnel and equipment.

[0005] Therefore, the present invention provides a dual-mode synchronous grouting system for tunnel boring machines. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A dual-mode synchronous grouting system for a tunnel boring machine (TBM) includes a mixing module, a fluid conveying module, a single-liquid grouting module, a dual-liquid synchronous grouting module, and a fluid discharge module. The fluid conveying module is divided into two groups and connected to the single-liquid grouting module and the dual-liquid synchronous grouting module respectively. The mixing module is connected to the single-liquid grouting module and the dual-liquid synchronous grouting module through the fluid conveying module. A fluid discharge module is connected to both the single-liquid grouting module and the dual-liquid synchronous grouting module. During operation, in the excavation process of a subway tunnel, the corresponding excavation process can be carried out by the TBM according to the soil conditions. During the tunneling process of the TBM, both the single-liquid grouting module and the dual-liquid synchronous grouting module are configured on the TBM simultaneously. The two modes of synchronous grouting systems can be easily switched before the start of operation, thereby giving full play to their respective advantages and characteristics.

[0008] Preferably, the fluid delivery module, through its connection with the ground mixing station, allows the mixing station to adjust the coolant according to the corresponding soil conditions. Simultaneously, the fluid discharge module can collect and discharge pipeline wastewater and tunnel wastewater during the operation of the single-liquid grouting module and the dual-liquid synchronous grouting module. During operation, when the tunnel boring machine is excavating, the workers can replace the coolant inside the ground mixing station according to the soil hardness. During the excavation process, the wastewater generated during excavation can be discharged through the fluid discharge module.

[0009] Preferably, the fluid discharge module includes a tunnel boring machine (TBM) body; the TBM body has an internal discharge channel; the discharge channel is connected to the excavation cutter head, driving the movement of soil and gravel; multiple sets of drive wheels are horizontally arranged in the middle of the TBM body; a conveyor belt is fitted onto the multiple sets of drive wheels; multiple sets of drainage holes are provided through the conveyor belt; a water storage tank is provided below the drive wheels, and a drain pipe is connected to the side wall of the water storage tank; during operation, the movement of the conveyor belt, combined with the obstruction of the gravel by the multiple sets of drainage holes, can achieve the separation of coolant and gravel, making it easier for workers to operate. At the same time, the discharge of coolant through the drain pipe can reduce the sedimentation of coolant inside the tunnel and reduce the occurrence of muddy conditions.

[0010] Preferably, each of the multiple sets of drive wheels is provided with a fixed shaft on one side; the drive wheel is fitted onto the fixed shaft; multiple sets of No. 1 sliding grooves are opened on the side wall of the fixed shaft; the spacing between each set of No. 1 sliding grooves is the same as that between each set of drainage holes; a connecting plate is slidably connected inside the No. 1 sliding groove; the No. 1 sliding groove and the connecting plate are connected by a spring; a pressing rod is provided at the top of the connecting plate; the pressing rod and the connecting plate are connected by a No. 1 rotating shaft; a torsion spring is provided inside the No. 1 rotating shaft; during operation, the contact between the pressing rod and the drainage hole can reduce the blockage caused by the accumulation of gravel and sand in the drainage hole, which would prevent coolant from being discharged in time and entering the tunnel surface, causing the ground to mix with soil and water, resulting in a large muddy area, affecting the passage of subsequent vehicles and the movement of workers.

[0011] Preferably, the sidewalls of the extrusion rod and the connecting plate that contact the first rotating shaft are each provided with a second sliding groove; a limit plate is slidably connected inside each pair of second sliding grooves; multiple sets of third sliding grooves are provided on the sidewalls of each set of second sliding grooves; a first magnet and a second magnet are slidably connected inside each pair of third sliding grooves; the first magnet and the second magnet are magnetically attracted to each other; during operation, the impact effect of the first magnet and the second magnet on the sidewalls of the limit plate caused by the rotation of the extrusion rod can cause the vibration to be transmitted to the conveyor belt for overall vibration, reducing possible jamming in the overall water leakage holes and improving the equipment's filtration effect on coolant.

[0012] Preferably, a pair of springs are fixed to the corresponding side walls of the extrusion rod and the connecting plate for support; a pair of rubber belts are fixed to the outermost side of the angle formed by the extrusion rod and the connecting plate; the rubber belts themselves are elastic; during operation, the presence of the rubber belts can block sand and gravel, reducing the chance of sand and gravel entering the springs or limiting plates and causing jamming, thus affecting the normal operation of the equipment.

[0013] Preferably, the outer sidewall of the fixed rotating shaft is rotatably connected to impact plates on both sides of the connecting plate; the impact plates and the sidewall of the fixed rotating shaft are connected by torsion springs; a connecting rope is wound on the shaft of the impact plate; the other end of the connecting rope is fixed to the sidewall of the connecting plate; during operation, the downward movement of the first rotating shaft can drive the impact plates to impact the sidewall of the conveyor belt, generating sufficient vibration to loosen the sand and gravel attached to the conveyor belt, while reducing the sand and gravel impurities accumulated in the drainage holes, thus improving the overall stability of the equipment.

[0014] Preferably, the fixed rotating shaft sidewall has a fourth sliding groove located in the middle of the multiple sets of impact plates; an impact ball is provided inside the fourth sliding groove; a rubber rod is fixedly connected to the sidewall of the impact ball; the other end of the rubber rod is fixedly connected to the sidewall of the impact plate; a limiting block is fixedly connected inside the fourth sliding groove; the limiting blocks are arranged in a stepped manner; during operation, the vibration effect of the moving impact ball can be used to further loosen the sand and gravel attached to the conveyor belt and the drain hole through the vibration transmission effect, reducing the accumulation and preventing the coolant from being discharged smoothly.

[0015] Preferably, the sidewall of the fourth chute is fixedly connected to an extrusion plate in the opposite direction to the limiting block; the extrusion plates are arranged from long to short along the stepped shape of the limiting block; during operation, the support of the rubber rod by multiple sets of extrusion plates can increase the impact ball's jerking sensation on the limiting block, thereby increasing the vibration effect, reducing the accumulation of sand and gravel in the conveyor belt and drainage holes, facilitating the smooth discharge of coolant, and reducing accumulation on the tunnel floor.

[0016] Preferably, a pair of rollers are rotatably connected to the side wall of the extrusion rod; during operation, the rotation of the rollers can reduce the jamming of the extrusion rod inside the drain hole, and at the same time assist the smooth movement of the extrusion rod, thereby improving the stability of the equipment during operation.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The shield tunneling machine dual-mode synchronous grouting system of the present invention utilizes the movement effect of the conveyor belt and multiple sets of drainage holes to block the crushed stone, thereby achieving the separation of coolant and crushed stone, making it easier for workers to operate. At the same time, the drainage pipe can reduce the sedimentation of coolant inside the tunnel and reduce the occurrence of muddy conditions.

[0019] 2. The shield tunneling machine dual-mode synchronous grouting system of the present invention can reduce the blockage caused by the accumulation of gravel and sand in the drainage holes by utilizing the contact between the extrusion rod and the drainage hole. This would prevent the coolant from being discharged in time and entering the tunnel surface, resulting in a large muddy mixture of soil and water, which would affect the passage of subsequent vehicles and the movement of workers. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a system flowchart of the present invention;

[0022] Figure 2 This is a perspective view of the present invention;

[0023] Figure 3 This is a cross-sectional view of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the fixed rotating shaft in this invention;

[0025] Figure 5 This is a schematic diagram of the extrusion rod in this invention;

[0026] Figure 6 This is a structural schematic diagram of Embodiment 2;

[0027] In the diagram: 1. Tunnel boring machine body; 11. Discharge channel; 12. Conveyor belt; 13. Power wheel; 14. Drainage hole; 15. Drainage pipe; 2. Fixed shaft; 21. Compression rod; 22. No. 1 chute; 23. Connecting plate; 24. No. 1 shaft; 3. No. 2 chute; 31. Limiting plate; 32. No. 3 chute; 33. No. 1 magnet; 34. No. 2 magnet; 4. Rubber belt; 5. Impact plate; 51. Connecting rope; 6. No. 4 chute; 61. Limiting block; 62. Rubber rod; 63. Impact ball; 7. Compression plate; 8. Roller. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0029] Example 1

[0030] like Figure 1As shown in the embodiment of the present invention, a dual-mode synchronous grouting system for a tunnel boring machine includes a mixing module, a fluid conveying module, a single-liquid grouting module, a dual-liquid synchronous grouting module, and a fluid discharge module. The fluid conveying module is divided into two groups and connected to the single-liquid grouting module and the dual-liquid synchronous grouting module respectively. The mixing module is connected to the single-liquid grouting module and the dual-liquid synchronous grouting module through the fluid conveying module. Both the single-liquid grouting module and the dual-liquid synchronous grouting module are connected to a fluid discharge module. During operation, in the excavation of the subway tunnel, the tunnel boring machine can carry out the corresponding excavation process according to the soil conditions. During the tunnel boring machine's excavation process, both the single-liquid grouting module and the dual-liquid synchronous grouting module are configured on the tunnel boring machine simultaneously. The two modes of synchronous grouting system can be easily switched before the start of operation, thereby giving full play to their respective advantages and characteristics.

[0031] like Figure 1 As shown, the fluid delivery module, through its connection with the ground mixing station, allows the mixing station to change the coolant according to the corresponding soil conditions. At the same time, the fluid discharge module can collect and discharge pipeline wastewater and tunnel wastewater when the single-liquid grouting module and the dual-liquid synchronous grouting module are working. During operation, when the tunnel boring machine is excavating, the workers can replace the coolant inside the ground mixing station according to the soil hardness. During the excavation process, the wastewater brought in by the excavation can be discharged through the fluid discharge module.

[0032] like Figures 2 to 3As shown, the fluid discharge module includes a tunnel boring machine (TBM) body 1; a discharge channel 11 is provided inside the TBM body 1; the discharge channel 11 is connected to the excavation cutter head, driving the soil and gravel to move; multiple sets of power wheels 13 are horizontally arranged in the middle of the TBM body 1; conveyor belts 12 are fitted on the multiple sets of power wheels 13; multiple sets of drainage holes 14 are provided through the conveyor belts 12; a water storage tank is provided below the power wheels 13, and a drainage pipe 15 is connected to the side wall of the water storage tank; during operation, the staff judges the soil layer based on the site exploration to determine the tunneling plan of the TBM body 1. During the tunneling process of the TBM body 1, as the excavation cutter head of the TBM body 1 breaks the soil and gravel, the soil and gravel mixed with cooling water flows out from the discharge channel 11. The coolant flows through the tunnel. Multiple sets of power wheels 13 rotate, driving the conveyor belt 12 mounted on them. Coolant falling from the discharge channel 11 onto the conveyor belt 12 flows through drainage holes 14 into a water storage tank. A pump connected to the drain pipe 15 then drains the coolant from the tank. Meanwhile, the gravel moving with the coolant remains on the conveyor belt 12 and follows it. The movement of the conveyor belt 12, combined with the drainage holes 14 blocking the gravel, separates the coolant from the gravel, facilitating their recycling and operation. Simultaneously, the drainage pipe 15 reduces coolant sedimentation inside the tunnel, minimizing mud.

[0033] like Figure 4As shown, each of the multiple sets of power wheels 13 has a fixed rotating shaft 2 on one side; the power wheels 13 are fitted onto the fixed rotating shaft 2; multiple sets of first-order sliding grooves 22 are opened on the side wall of the fixed rotating shaft 2; the spacing between each set of first-order sliding grooves 22 is the same as that between each set of drainage holes 14; a connecting plate 23 is slidably connected inside the first-order sliding groove 22; the first-order sliding groove 22 and the connecting plate 23 are connected by a spring; a pressing rod 21 is provided at the top of the connecting plate 23; the pressing rod 21 and the connecting plate 23 are connected by a first-order rotating shaft 24; a torsion spring is provided inside the first-order rotating shaft 24; during operation, when the conveyor belt 12 rotates, the fixed rotating shaft 2 rotates simultaneously, at which time the connecting plate 23 moves towards the ground under the action of the spring. As the tunnel is pushed outwards, the top rotating shaft 24 drives the squeezing rod 21 to insert into the drainage hole 14, clearing away the gravel blocking the drainage hole 14. As the drainage hole 14 and the conveyor belt 12 continue to move, the squeezing rod 21 contacts the side wall of the drainage hole 14, causing it to bend through the rotating shaft 24 and smoothly detach from the drainage hole 14. This step is repeated as the fixed rotating shaft 2 rotates continuously. By utilizing the contact between the squeezing rod 21 and the drainage hole 14, the blockage caused by the accumulation of gravel and sand in the drainage hole 14 can be reduced, preventing the coolant from draining out in time and entering the tunnel surface. This results in a large muddy surface caused by the mixture of soil and water, affecting the passage of subsequent vehicles and the movement of staff.

[0034] like Figure 5 As shown, the sidewalls of the extrusion rod 21 and the connecting plate 23 that contact the first rotating shaft 24 are each provided with a second sliding groove 3; each pair of second sliding grooves 3 is slidably connected to a limit plate 31; each set of second sliding grooves 3 has multiple sets of third sliding grooves 32 on its sidewalls; each pair of third sliding grooves 32 is slidably connected to a first magnet 33 and a second magnet 34; the first magnet 33 and the second magnet 34 are magnetically attracted to each other; during operation, when the extrusion rod 21 is subjected to pressure from the drain hole 14 and rotates through the first rotating shaft 24, the limit plate 31 will be in the second sliding groove 3. The internal movement compresses magnet 33 and magnet 34. Under the magnetic attraction of magnet 33 and magnet 34, they will impact the side wall of the limiting plate 31 after being compressed, generating vibration. The impact of magnet 33 and magnet 34 on the side wall of the limiting plate 31 by rotating the compression rod 21 can conduct the vibration to the conveyor belt 12, reducing the possible jamming in the overall water leakage hole 14 and improving the equipment's filtration effect on coolant.

[0035] like Figure 5As shown, a pair of springs are fixed to the corresponding side walls of the extrusion rod 21 and the connecting plate 23 for support; a pair of rubber belts 4 are fixed to the outermost side of the angle formed by the extrusion rod 21 and the connecting plate 23; the rubber belts 4 are elastic; during operation, the rubber belts 4 are simultaneously stretched and deformed during the rotation of the extrusion rod 21. The presence of the rubber belts 4 can protect the limiting plate 31 and the springs, and after the rubber belts 4 are stretched and deformed, their elasticity can assist the extrusion rod 21 in subsequent reset. The presence of the rubber belts 4 can also block sand and gravel, reducing the risk of sand and gravel entering the springs or limiting plate 31 and causing jamming, which would affect the normal operation of the equipment.

[0036] like Figure 4 As shown, impact plates 5 are rotatably connected to the outer sidewall of the fixed rotating shaft 2 on both sides of the connecting plate 23; the impact plates 5 and the sidewall of the fixed rotating shaft 2 are connected by a torsion spring; a connecting rope 51 is wound around the shaft of the impact plate 5; the other end of the connecting rope 51 is fixed to the sidewall of the connecting plate 23; during operation, when the squeezing rod 21 disengages from the drain hole 14, the squeezing rod 21 generates a downward force when squeezed by the sidewall of the drain hole 14, which drives the connecting plate 23 to move downward, and the pulling 52 drives the impact plate 5 to rotate, so that the end of the impact plate 5 impacts the sidewall of the conveyor belt 12. By using the downward movement of the first rotating shaft 24, the impact plate 5 can be driven to impact the sidewall of the conveyor belt 12, generating a sufficient vibration effect to loosen the sand and gravel attached to the conveyor belt 12, and at the same time reduce the sand and gravel impurities accumulated in the drain hole 14, thereby improving the overall stability of the equipment.

[0037] like Figure 4 As shown, the fixed rotating shaft 2 has a fourth sliding groove 6 located in the middle of the multiple sets of impact plates 5 on its side wall; an impact ball 63 is provided inside the fourth sliding groove 6; a rubber rod 62 is fixedly connected to the side wall of the impact ball 63; the other end of the rubber rod 62 is fixedly connected to the side wall of the impact plate 5; a limiting block 61 is fixedly connected inside the fourth sliding groove 6; the limiting blocks 61 are arranged in a stepped manner; during operation, the rubber rod 62 will move as the impact plate 5 moves, causing the impact ball 63 to continuously contact the limiting block 61, producing a jumping effect. At the same time, during the retraction and reset phase of the impact plate 5, the impact ball 63 will still pass through the limiting block 61, thus producing a second vibration effect. Utilizing the vibration effect of the moving impact ball 63, the sand and gravel attached to the conveyor belt 12 and the drain hole 14 can be further loosened through the vibration transmission effect, reducing the accumulation and preventing the coolant from being discharged smoothly.

[0038] like Figure 4As shown, the sidewall of the fourth chute 6 is fixed with an extrusion plate 7 in the opposite direction to the limiting block 61; the extrusion plates 7 are arranged from long to short along the stepped shape of the limiting block 61; during operation, the rubber rod 62 is supported by the multiple sets of extrusion plates 7, which causes the impact ball 63 to adhere to the limiting block 61, thereby enhancing the impact effect. By using the multiple sets of extrusion plates 7 to support the rubber rod 62, the impact ball 63 can increase the sense of impact on the limiting block 61, thereby increasing the vibration effect, reducing the accumulation of sand and gravel in the conveyor belt 12 and the drainage hole 14, facilitating the smooth discharge of coolant, and reducing the accumulation on the tunnel floor.

[0039] Example 2

[0040] like Figure 6 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a pair of rollers 8 are rotatably connected to the side wall of the extrusion rod 21; during operation, the pair of rollers 8 installed on the side wall of the extrusion rod 21 can smoothly disengage from the drain hole 14 through their own rotation after contacting the drain hole 14. The rotation of the rollers 8 can reduce the jamming phenomenon of the extrusion rod 21 inside the drain hole 14, and at the same time assist the smooth movement of the extrusion rod 21, thereby improving the stability of the equipment during operation.

[0041] During operation, staff assess the soil layers based on on-site surveys to determine the excavation plan for the tunnel boring machine (TBM) body 1. As the TBM body 1 excavates, the cutting head breaks up the soil and gravel, and the mixture of soil, gravel, and cooling water flows through the discharge channel 11. Simultaneously, the rotation of multiple sets of power wheels 13 drives the conveyor belts 12 mounted on them to move. The coolant falling from the discharge channel 11 onto the conveyor belts 12 then flows through the drainage holes 14 on the conveyor belts 12 into a water storage tank. A pump connected to the tank via a drain pipe 15 then discharges the coolant from the tank. The moving gravel will remain on the conveyor belt 12 and move with it. As the conveyor belt 12 rotates, the fixed shaft 2 rotates simultaneously. At this time, the connecting plate 23 is pushed outward under the action of the spring. At this moment, the top first shaft 24 will drive the squeezing rod 21 to insert into the drain hole 14, clearing the gravel blocking the drain hole 14. As the drain hole 14 and the conveyor belt 12 continue to move, the squeezing rod 21 contacts the side wall of the drain hole 14, causing it to bend through the first shaft 24, allowing it to smoothly detach from the drain hole 14. This step is repeated as the fixed shaft 2 continues to rotate, and the squeezing rod 21 is subjected to pressure from the drain hole 14. When the pressure is applied through the first rotating shaft 24, the limiting plate 31 moves inside the second sliding groove 3, squeezing the first magnet 33 and the second magnet 34. At this time, under the magnetic attraction of the first magnet 33 and the second magnet 34, they will re-impact the side wall of the limiting plate 31 after being squeezed, generating vibration. During the rotation of the squeezing rod 21, the rubber belt 4 is simultaneously stretched, causing it to deform. The presence of the rubber belt 4 protects the limiting plate 31 and the spring, and its elasticity assists the squeezing rod 21 in subsequent reset after stretching and deformation. The squeezing rod 21 exits through the drain hole 1... When detached from the 4th stage, the squeezing rod 21 generates a downward force when squeezed by the side wall of the drain hole 14, which drives the connecting plate 23 to move downward. The pulling 52 drives the impact plate 5 to rotate, so that the end of the impact plate 5 impacts the side wall of the conveyor belt 12. During the movement of the impact plate 5, it will drive the rubber rod 62 to move, so that the impact ball 63 will continuously contact the limiting block 61, producing a jumping effect. At the same time, during the recovery and reset stage of the impact plate 5, the impact ball 63 will still pass through the limiting block 61, thus producing a second vibration effect. Under the support of multiple sets of squeezing plates 7, the rubber rod 62 is supported, causing the impact ball 63 to adhere to the limiting block 61, enhancing the impact effect.

[0042] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0043] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0044] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-mode synchronous grouting system for a tunnel boring machine, characterized in that: It includes a mixing module, a fluid delivery module, a single-liquid grouting module, a dual-liquid synchronous grouting module, and a fluid discharge module; the fluid delivery module is divided into two groups and is respectively connected to the single-liquid grouting module and the dual-liquid synchronous grouting module; the mixing module is connected to the single-liquid grouting module and the dual-liquid synchronous grouting module through the fluid delivery module; and the single-liquid grouting module and the dual-liquid synchronous grouting module are each connected to a fluid discharge module; The fluid discharge module includes a tunnel boring machine body (1); the tunnel boring machine body (1) has a discharge channel (11) inside; the discharge channel (11) is connected to the tunneling cutter head and drives the soil and gravel to move; multiple sets of power wheels (13) are horizontally arranged in the middle of the tunnel boring machine body (1); a conveyor belt (12) is fitted on the multiple sets of power wheels (13); multiple sets of drainage holes (14) are provided through the conveyor belt (12); a water storage tank is provided below the power wheels (13), and a drain pipe (15) is connected to the side wall of the water storage tank; Each of the multiple sets of power wheels (13) is provided with a fixed rotating shaft (2) on one side; the power wheels (13) are fitted onto the fixed rotating shaft (2); the side wall of the fixed rotating shaft (2) is provided with multiple sets of first-level sliding grooves (22); the spacing of each set of first-level sliding grooves (22) is the same as that of each set of drainage holes (14); a connecting plate (23) is slidably connected inside the first-level sliding groove (22); the first-level sliding groove (22) and the connecting plate (23) are connected by a spring; a pressing rod (21) is provided at the top of the connecting plate (23); the pressing rod (21) and the connecting plate (23) are connected by a first-level rotating shaft (24); a torsion spring is provided inside the first-level rotating shaft (24); The extrusion rod (21) and the connecting plate (23) are provided with a second slide groove (3) on the side wall of the first rotating shaft (24); a limit plate (31) is slidably connected inside each pair of second slide grooves (3); multiple sets of third slide grooves (32) are provided on the side wall of each set of second slide grooves (3); a first magnet (33) and a second magnet (34) are slidably connected inside each pair of third slide grooves (32); the first magnet (33) and the second magnet (34) are attracted by magnetic force.

2. The shield tunneling machine dual-mode synchronous grouting system according to claim 1, characterized in that: The fluid delivery module, connected to the ground mixing station, enables the mixing station to adjust the coolant according to the corresponding soil conditions. Meanwhile, the fluid discharge module can collect and discharge pipeline wastewater and tunnel wastewater when the single-liquid grouting module and the dual-liquid synchronous grouting module are working.

3. The shield tunneling machine dual-mode synchronous grouting system according to claim 1, characterized in that: The extrusion rod (21) and the connecting plate (23) are respectively supported by a pair of springs on their corresponding side walls; a pair of rubber strips (4) are fixed to the outermost side of the angle formed by the extrusion rod (21) and the connecting plate (23); the rubber strips (4) themselves are elastic.

4. The shield tunneling machine dual-mode synchronous grouting system according to claim 3, characterized in that: The outer sidewall of the fixed rotating shaft (2) is rotatably connected to the impact plate (5) on both sides of the connecting plate (23); the impact plate (5) and the sidewall of the fixed rotating shaft (2) are connected by a torsion spring; a connecting rope (51) is wound on the shaft of the impact plate (5); the other end of the connecting rope (51) is fixed to the sidewall of the connecting plate (23).

5. A shield tunneling machine dual-mode synchronous grouting system according to claim 4, characterized in that: The fixed rotating shaft (2) has a fourth sliding groove (6) located in the middle of the multiple impact plates (5) on its side wall; an impact ball (63) is provided inside the fourth sliding groove (6); a rubber rod (62) is fixedly connected to the side wall of the impact ball (63); the other end of the rubber rod (62) is fixedly connected to the side wall of the impact plate (5); a limiting block (61) is fixedly connected inside the fourth sliding groove (6); the limiting blocks (61) are arranged in a stepped manner.

6. A shield tunneling machine dual-mode synchronous grouting system according to claim 5, characterized in that: The sidewall of the fourth slide (6) is fixed with an extrusion plate (7) in the opposite direction to the limiting block (61); the extrusion plate (7) is arranged from long to short along the step shape of the limiting block (61).

7. A shield tunneling machine dual-mode synchronous grouting system according to claim 6, characterized in that: The side wall of the extrusion rod (21) is rotatably connected to a pair of rollers (8).

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