A dual-mode TBM construction device for crossing water-rich strata and a method of using the device

Abstract

The present invention provides a dual-mode TBM construction device for crossing a water-rich stratum and a use method thereof, belonging to the technical field of TBM equipment, comprising a pipe body; a moving groove, the moving groove is arranged on the circumferential surface of the pipe body, two mud retaining rings are fixedly connected to the inner wall of the moving groove; a moving ring, the moving ring is arranged between the inner walls of the moving groove, a rotating groove is arranged on the circumferential surface of the moving ring, and a sealing mechanism is arranged between the moving ring and the two mud retaining rings; a control box is used to control the motor to start, the output end of the motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate by meshing with the driven gear, and the driven gear drives the rotating sleeve to rotate by meshing with the crown gear, so that the grouting port rotates around the moving groove to the penetration point, the penetration point is aligned, rapid alignment is achieved, the grouting method is changed, the TBM is prevented from being limited by the working space, the penetration point is accurately aligned, and the grouting water blocking effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of TBM equipment, and in particular relates to a dual-mode TBM construction device for crossing a water-rich stratum and a use method thereof. Background Art

[0002] TBM: (Full-section) Tunnel Boring Machine. It is divided into open tunnel boring machine and generalized shield machine.

[0003] Broad meaning: The construction processes of excavation, support, slag discharge, etc. are carried out in parallel and continuously. It is a factory-based assembly line tunnel construction equipment that integrates mechanical, electrical, hydraulic, optical, and gas systems. It has the advantages of fast excavation speed, environmental protection, and high comprehensive benefits. It can realize the construction of deep-buried long tunnels in complex geographical features that are difficult to achieve with traditional drilling and blasting methods. Its application in China's railway, hydropower, transportation, mining, municipal and other tunnel projects is growing rapidly.

[0004] Narrow meaning: Full-section tunnel boring machine. In China, the one used in rock strata is referred to as (narrow sense) TBM (hard rock TBM), and the one used in soft strata is called (narrow sense) shield machine.

[0005] Compared with the narrow-sense shield machine, TBM is called the "king of tunnel boring machines" among engineering machinery because of its extremely high requirements for equipment reliability and long life.

[0006] Full-face tunnel boring machines have been widely used in engineering fields such as municipal engineering, water conservancy tunnels, railways, and coal mine tunnels. Compared with traditional drilling and blasting tunnel construction, TBM has the advantages of safe, fast, high-quality, and efficient excavation, which greatly improves the level of construction mechanization. However, for adverse geological conditions, such as rock fracture zones, high-pressure water-rich strata, soft strata, and karst caves, TBM has poor adaptability and low excavation efficiency. Improper handling may even cause engineering accidents such as water inrush, landslides, machine jams, and machine flooding, which seriously affect the safety, quality, economic and social benefits of the project.

[0007] High-pressure water-rich fractured zones are one of the most unfavorable geological conditions with high risks in tunnel construction, prone to accidents such as sudden water inrush, landslides, and equipment flooding. At present, in order to prevent and deal with sudden water inrush in high-pressure water-rich fractured zones, construction personnel adhere to the principle of "combining blocking and drainage, and limited discharge", and adopt a variety of measures such as radial grouting, local water blocking grouting, and advanced grouting.

[0008] The authorization publication number "CN216077113U" records "a sealing device suitable for an open TBM in water-rich broken formations, comprising an outer sealing component and an inner sealing component that cooperate with each other, the outer sealing component comprising an outer sealing dust-proof mechanism and a small cyclone dust removal mechanism; the small cyclone dust removal mechanism comprising a temporary settling chamber, a dust outlet, a small cyclone dust collector, and a cyclone dust outlet channel, the cyclone dust outlet channel is opened on the outer clamping ring, the small cyclone dust collector is arranged at the end of the inner end of the cyclone dust outlet channel, the dust outlet is arranged at the outer end of the cyclone dust outlet channel, and the temporary settling chamber is formed by the outer clamping ring and the anti-sinking maze; this device optimizes the number of rotations of the labyrinth sealing chamber and reduces the intrusion of sand and gravel particles by arranging an outer sealing component and an inner sealing component to slow down the failure of TBM sealing, and cooperates with the inner sealing dust-proof component to provide double protection for the sealing structure, and has the characteristics of good dust and sand particle prevention effects and convenient construction".

[0009] The above patent optimizes the number of rotations of the labyrinth seal chamber and reduces the intrusion of sand and gravel particles by setting an outer sealing component and an inner sealing component to slow down the failure of TBM seals and achieve dust prevention effect. By replacing the TBM sealing grease, the sealing effect of grease on sand and gravel in the water is improved, providing double protection for the sealing structure. It has the advantages of good dust and gravel particle prevention effect and convenient construction. However, in actual use, it is limited by the geological conditions of rock water-rich strata, which are very easy to break and produce water seepage, and the TBM is limited by the working space. Conventional grouting and water blocking methods are difficult to implement, and the grouting and water blocking effect is poor. For this reason, we propose a dual-mode TBM construction device for crossing water-rich strata and its use method. Summary of the invention

[0010] The purpose of the present invention is to provide a dual-mode TBM construction device for crossing water-rich strata and a method of using the same, in order to solve the problem that in actual use, the rock water-rich strata are easily broken and water seepage occurs, the TBM is limited by the working space, the conventional grouting water blocking method is difficult to implement, and the grouting water blocking effect is poor.

[0011] To achieve the above object, the present invention provides the following technical solutions:

[0012] A dual-mode TBM construction device for crossing a water-rich stratum comprises a pipe body;

[0013] A movable groove, the movable groove is opened on the circumferential surface of the pipe body, and two mud retaining rings are fixedly connected to the inner wall of the movable groove;

[0014] A moving ring, the moving ring is arranged between the inner walls of the moving groove, a rotating groove is provided on the circumferential surface of the moving ring, and a sealing mechanism is provided between the moving ring and the two mud guard rings;

[0015] A rotating sleeve, the rotating sleeve is rotatably connected in the rotating groove, an electronic grouting valve is provided on the circumferential surface of the rotating sleeve, and a grouting port is installed in the electronic grouting valve;

[0016] A slurry pumping mechanism, which is disposed between the inner walls of the pipe body and connected to the grouting port; and

[0017] The linkage mechanism is arranged in the moving groove and is connected with the rotating sleeve to move the grouting port.

[0018] As a preferred solution of the present invention, the linkage mechanism includes a telescopic component, a sliding component, a driving component and a transmission component. The telescopic component is arranged between the inner walls of the movable groove, the telescopic component is connected to the movable ring, the sliding component is arranged on the inner wall of the movable groove, the sliding component is connected to the movable ring, the transmission component is arranged between the inner walls of the tube body, the transmission component is connected to the rotating sleeve, the driving component is arranged between the circumferential inner walls of the tube body, and the driving component is connected to the transmission component.

[0019] As a preferred solution of the present invention, the telescopic assembly includes a push rod groove and an electric push rod, wherein a plurality of the push rod grooves are provided, and the plurality of the push rod grooves are opened between the inner walls of the moving groove, and a plurality of the electric push rods are provided, and the plurality of the electric push rods are fixedly connected in the plurality of push rod grooves, and the output ends of the plurality of the electric push rods are fixedly connected to the side end of the moving ring.

[0020] As a preferred solution of the present invention, the sliding assembly includes a slide groove and a slider, wherein a plurality of the slide grooves are provided, and the plurality of the slide grooves are evenly opened on the annular inner wall of the movable groove, and a plurality of the sliders are provided, and the plurality of the sliders slide between the inner walls of the plurality of slide grooves, and the plurality of the sliders are fixedly connected to the annular inner wall of the rotating sleeve.

[0021] As a preferred solution of the present invention, the transmission assembly includes a gear groove, a meshing groove, a sliding tooth groove, a crown gear, a driven gear and a driving gear, the gear groove is opened in the rotating sleeve, the gear groove is connected with the rotating groove, the meshing groove is opened on the inner wall of the tube body, the meshing groove is connected with the moving groove, the sliding tooth groove is opened at the side end of the moving ring, the sliding tooth groove corresponds to the meshing groove, the crown gear is arranged between the inner walls of the gear groove, the crown gear is fixedly connected to the rotating sleeve, the driven gear is rotatably connected between the inner walls of the meshing groove, the driven gear is meshed with the crown gear, the driving gear is arranged between the inner walls of the tube body, and the driving gear is meshed with the driven gear.

[0022] As a preferred solution of the present invention, the driving assembly includes auxiliary reinforcing ribs and a motor, the auxiliary reinforcing ribs are fixedly connected between the circumferential inner walls of the tube body, the motor is fixedly connected to the side ends of the auxiliary reinforcing ribs, the output end of the motor extends to the side ends of the auxiliary reinforcing ribs, and the output end of the motor is fixedly connected to the driving gear.

[0023] As a preferred solution of the present invention, the sealing mechanism includes a sealing groove and a sealing ring. There are two sealing grooves, which are opened on the circumferential surfaces of the two mud guard rings. There are two sealing rings, which are fixedly connected in the two sealing grooves, and the two sealing rings are tightly attached to the circumferential surface of the movable ring.

[0024] As a preferred scheme of the present invention, the slurry pumping mechanism includes a grouting pump box, a guide pipe, an Ω-shaped grouting groove, a docking block, a second support frame, a first support frame, a control box and a threaded docking hole. The docking block is fixedly connected to the circumferential inner wall of the pipe body. Two threaded docking holes are provided, and the two threaded docking holes are opened at the top of the docking block. The Ω-shaped grouting groove is opened in the pipe body. The Ω-shaped grouting groove is connected with the two threaded docking holes, and the Ω-shaped grouting groove is connected with the electronic grouting valve. The second support frame is fixedly connected to the circumferential inner wall of the pipe body, the grouting pump box is fixedly connected to the side end of the second support frame, two guide pipes are provided, one end of the two guide pipes is fixedly connected to the side end of the grouting pump box, and the other end of the two guide pipes is fixedly connected to the two threaded docking holes. The first support frame is fixedly connected to the inner wall of the pipe body, and the control box is fixedly connected to the side end of the first support frame.

[0025] As a preferred solution of the present invention, a sensing groove is provided on the circumferential surface of the tube body, and a pressure sensing ring is fixedly connected between the inner walls of the sensing groove.

[0026] A method for using a dual-mode TBM construction device for crossing a water-rich stratum comprises the following steps:

[0027] S1, pressure trigger:

[0028] The pipe body is driven to move during the forward movement of the TBM. When the pipe body moves to the place where water seepage occurs, the pressure sensing ring monitors the pressure threshold, and the control box receives the pressure threshold change transmitted by the pressure sensing ring and makes an identification judgment. When the threshold is within the normal range, the motor and multiple electric push rods are not started through the control box. When the threshold is within the abnormal range, the motor and multiple electric push rods are started through the control box to realize the pressure triggering of the device.

[0029] S2. Seepage point alignment:

[0030] During the movement of the pipe body, when triggered, multiple electric push rods are powered on and started, and the output ends of the multiple electric push rods simultaneously push the moving ring, so that the moving ring drives the rotating sleeve to move in the moving groove. During the movement of the moving ring, multiple slide grooves and multiple sliders slide and cooperate to guide the movement of the moving ring. When the rotating sleeve and the penetration point are in the same cross section, the motor is started by controlling the control box, and the output end of the motor drives the driving gear to rotate. The driving gear drives the driven gear to rotate by meshing with the driven gear. The driven gear drives the rotating sleeve to rotate by meshing with the crown gear, so that the grouting port rotates around the moving groove to the penetration point, and the penetration point is aligned.

[0031] S3, grouting blockage:

[0032] The control box controls the grouting pump box to ensure that the pressure in the Ω-type grouting groove is higher than the pressure at the penetration point through two guide pipes and threaded docking holes. The control box controls the electronic grouting valve to open. The control box starts the grouting pump box to guide the mixed cement slurry through a guide pipe to a threaded docking hole, and then guides it to the Ω-type grouting groove through the threaded docking hole. The Ω-type grouting groove guides it to the electronic grouting valve to achieve grouting and blocking of the penetration point.

[0033] S4. Residue slurry cleaning:

[0034] During the grouting process, the mud retaining ring keeps monitoring the pressure at the penetration point. When the abnormal pressure threshold drops back to the normal pressure threshold, the control box controls the electronic grouting valve to close, and pumps clean water into a guide pipe through the grouting pump box. The clean water flows through two guide pipes, two threaded docking holes and the Ω-shaped grouting groove in a circular manner, flushing out the remaining mud to achieve residual slurry cleaning;

[0035] S5, Reset and fall off:

[0036] When the grouting solidifies, the mud retaining ring senses that the pressure at the penetration point is constant, and the control box resets the output ends of multiple electric push rods to drive the moving ring to reset. During the resetting process of the moving ring, the solidified mud attached to the circumferential surface of the moving ring is scraped off through two sealing rings to achieve the resetting and shedding of the grouting port and the rotating sleeve.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] 1. In this scheme, during the movement of the pipe body, when triggered, multiple electric push rods are powered on and started, and the output ends of the multiple electric push rods simultaneously push the moving ring, so that the moving ring drives the rotating sleeve to move in the moving groove. During the movement of the moving ring, multiple slide grooves and multiple sliders slide and cooperate to guide the movement of the moving ring, so that the rotating sleeve and the penetration point are in the same cross-section. When the rotating sleeve and the penetration point are in the same cross-section, the motor is started by controlling the control box, and the output end of the motor drives the driving gear to rotate. The driving gear drives the driven gear to rotate by meshing with the driven gear, and the driven gear drives the rotating sleeve to rotate by meshing with the crown gear, so that the grouting port rotates around the moving groove to the penetration point, aligns the penetration point, realizes rapid alignment, changes the grouting method, avoids the TBM being limited by the working space, accurately aligns the penetration point, and improves the grouting and water blocking effect.

[0039] 2. In this solution, two sealing grooves are opened to accommodate and fix two sealing rings. The two sealing rings seal the gap between the two mud retaining rings and the movable ring by deformation. At the same time, during the resetting process of the movable ring, the two sealing rings are used to scrape off the solidified mud attached to the circumferential surface of the movable ring, thereby realizing the resetting and detachment of the grouting port and the rotating sleeve, and realizing rapid resetting.

[0040] 3. In this scheme, during the grouting process, the pressure sensing ring maintains pressure monitoring at the penetration point. When the abnormal pressure threshold drops back to the normal pressure threshold, the control box controls the electronic grouting valve to close, and pumps clean water into a guide pipe through the grouting pump box. The clean water passes through two guide pipes, two threaded docking holes and Ω-shaped grouting grooves, and circulates in a ring shape to flush out the remaining mud, thereby cleaning the residual mud and avoiding blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0042] Figure 1 A first-perspective stereoscopic diagram of a dual-mode TBM construction device for crossing a water-rich stratum according to the present invention;

[0043] Figure 2 A second perspective stereoscopic diagram of a dual-mode TBM construction device for crossing a water-rich stratum according to the present invention;

[0044] Figure 3 It is a first half cross-sectional view of a dual-mode TBM construction device for crossing a water-rich stratum according to the present invention;

[0045] Figure 4 A dual-mode TBM construction device for crossing a water-rich stratum according to the present invention Figure 3 A magnified image of point A;

[0046] Figure 5 It is a second half cross-sectional view of a dual-mode TBM construction device for crossing a water-rich stratum according to the present invention;

[0047] Figure 6 A third half cross-sectional view of a dual-mode TBM construction device for crossing a water-rich stratum according to the present invention;

[0048] Figure 7 A fourth half-section view of a dual-mode TBM construction device for crossing a water-rich stratum according to the present invention;

[0049] Figure 8 An exploded view of a dual-mode TBM construction device for crossing a water-rich stratum according to the present invention;

[0050] Fig. 9 An exploded diagram of a linkage mechanism of a dual-mode TBM construction device for crossing a water-rich stratum according to the present invention;

[0051] Fig.10 This is a schematic diagram of the sealing mechanism of a dual-mode TBM construction device for crossing a water-rich stratum according to the present invention.

[0052] In the figure: 1. pipe body; 2. induction groove; 3. pressure induction ring; 4. moving groove; 5. mud retaining ring; 6. sealing groove; 7. sealing ring; 8. moving ring; 9. gear groove; 10. rotating sleeve; 11. crown gear; 12. driven gear; 13. driving gear; 14. motor; 15. meshing groove; 16. slide groove; 17. slider; 18. grouting port; 19. electronic grouting valve; 20. docking block; 21. Ω-shaped grouting groove; 22. auxiliary reinforcing ribs; 23. electric push rod; 24. push rod groove; 25. first support frame; 26. grouting pump box; 27. control box; 28. guide pipe; 29. ​​rotating groove; 30. pedal; 31. sliding tooth groove; 32. threaded docking hole; 33. second support frame. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] Example

[0055] Reference Figure 1 - Fig.10 , a dual-mode TBM construction device for crossing water-rich strata, comprising:

[0056] tube body 1;

[0057] A movable groove 4, which is formed on the circumferential surface of the tube body 1, and two mud retaining rings 5 ​​are fixedly connected to the inner wall of the movable groove 4;

[0058] A moving ring 8, which is arranged between the inner walls of the moving groove 4, a rotating groove 29 is provided on the circumferential surface of the moving ring 8, and a sealing mechanism is provided between the moving ring 8 and the two mud guard rings 5;

[0059] A rotating sleeve 10, the rotating sleeve 10 is rotatably connected in the rotating groove 29, an electronic grouting valve 19 is provided on the circumferential surface of the rotating sleeve 10, and a grouting port 18 is installed in the electronic grouting valve 19;

[0060] A slurry pumping mechanism, which is disposed between the inner walls of the pipe body 1 and is connected to the grouting port 18; and

[0061] The linkage mechanism is arranged in the moving groove 4 and is connected to the rotating sleeve 10 to move the grouting port 18 .

[0062] In the present invention, two 30 are fixedly connected in the pipe body 1, and the two 30 are used to support the movement of personnel. The pipe body 1 is fixedly connected to the rear end of the TBM, and the pipe body 1 is used to support the moving groove 4, the linkage mechanism, the pumping mechanism and the two mud retaining rings 5. The moving groove 4 is opened to accommodate the mud retaining ring 5, the moving ring 8 and the linkage mechanism. The two mud retaining rings 5 ​​are used to fix and support two sealing rings 7, and the sealing mechanism is used to seal between the moving ring 8 and the two mud retaining rings 5. The moving ring 8 is used to support and fix the rotating sleeve 10, the rotating groove 29 is used to accommodate the rotating sleeve 10, the rotating sleeve 10 is used to support and fix the grouting port 18, the electronic grouting valve 19 is opened to accommodate the electronic grouting valve 19, and the pumping mechanism is used to pump mixed cement slurry into the electronic grouting valve 19.

[0063] The linkage mechanism includes a telescopic component, a sliding component, a driving component and a transmission component. The telescopic component is arranged between the inner walls of the movable groove 4, the telescopic component is connected to the movable ring 8, the sliding component is arranged on the inner wall of the movable groove 4, the sliding component is connected to the movable ring 8, the transmission component is arranged between the inner walls of the tube body 1, the transmission component is connected to the rotating sleeve 10, the driving component is arranged between the circumferential inner walls of the tube body 1, and the driving component is connected to the transmission component.

[0064] In the present invention, the telescopic component is used to promote the movement of the movable ring 8, and then move the rotating sleeve 10, the sliding component is used to guide and limit the movement of the movable ring 8, and the transmission component is used to transmit the torque generated by the driving component to the rotating sleeve 10, and the driving component provides power for the rotation of the rotating sleeve 10.

[0065] The telescopic assembly includes a push rod groove 24 and an electric push rod 23. There are multiple push rod grooves 24, and the multiple push rod grooves 24 are opened between the inner walls of the moving groove 4. There are multiple electric push rods 23, and the multiple electric push rods 23 are fixedly connected in the multiple push rod grooves 24. The output ends of the multiple electric push rods 23 are all fixedly connected to the side ends of the moving ring 8.

[0066] In the present invention, multiple push rod grooves 24 are opened to accommodate multiple electric push rods 23, and the multiple electric push rods 23 are used to push the movement of the moving ring 8. The multiple electric push rods 23 are powered on and started, and push the moving ring 8 through multiple output ends to perform radial movement of the rotating sleeve 10 and the electronic grouting valve 19.

[0067] The sliding assembly includes a slide groove 16 and a slider 17. There are multiple slide grooves 16, and the multiple slide grooves 16 are evenly opened on the annular inner wall of the movable groove 4. There are multiple sliders 17, and the multiple sliders 17 slide between the inner walls of the multiple slide grooves 16. The multiple sliders 17 are fixedly connected to the annular inner wall of the rotating sleeve 10.

[0068] In the present invention, multiple slide grooves 16 are opened to accommodate multiple sliders 17. Multiple sliders 17 slide in the multiple slide grooves 16. The multiple slide grooves 16 guide and limit the movement of the moving ring 8 by sliding cooperation with the multiple sliders 17, thereby ensuring the smooth movement of the moving ring 8. During the movement of the tube body 1, when triggered, the multiple electric push rods 23 are powered on and started, and the output ends of the multiple electric push rods 23 simultaneously push the moving ring 8, so that the moving ring 8 drives the rotating sleeve 10 to move in the moving groove 4. During the movement of the moving ring 8, the multiple slide grooves 16 and the multiple sliders 17 slide and cooperate to guide the movement of the moving ring 8, so that the rotating sleeve 10 and the penetration point are in the same cross section.

[0069] The transmission assembly includes a gear groove 9, a meshing groove 15, a sliding tooth groove 31, a crown gear 11, a driven gear 12 and a driving gear 13. The gear groove 9 is opened in the rotating sleeve 10, and the gear groove 9 is connected with the rotating groove 29. The meshing groove 15 is opened on the inner wall of the tube body 1, and the meshing groove 15 is connected with the moving groove 4. The sliding tooth groove 31 is opened at the side end of the moving ring 8, and the sliding tooth groove 31 corresponds to the meshing groove 15. The crown gear 11 is arranged between the inner walls of the gear groove 9, and the crown gear 11 is fixedly connected to the rotating sleeve 10. The driven gear 12 is rotatably connected between the inner walls of the meshing groove 15, and the driven gear 12 is meshed with the crown gear 11. The driving gear 13 is arranged between the inner walls of the tube body 1, and the driving gear 13 is meshed with the driven gear 12.

[0070] In the present invention, the gear groove 9 is provided to accommodate the crown gear 11 and the driven gear 12, the meshing groove 15 is provided to accommodate the driven gear 12, and the sliding tooth groove 31 is provided to correspond to the meshing groove 15, so that the crown gear 11 does not fall off from the driven gear 12 during the sliding process of the moving ring 8, and the driven gear 12 drives the crown gear 11 to rotate by meshing with the crown gear 11, and the driving gear 13 drives the driven gear 12 to rotate by meshing with the driven gear 12. When the rotating sleeve 10 is at the penetration point, the driven gear 12 is driven to rotate by meshing with the driven gear 12. When at the same section, the motor 14 is started by controlling the control box 27, and the output end of the motor 14 drives the driving gear 13 to rotate. The driving gear 13 drives the driven gear 12 to rotate by meshing with the driven gear 12, and the driven gear 12 drives the rotating sleeve 10 to rotate by meshing with the crown gear 11, so that the grouting port 18 rotates around the moving groove 4 to the penetration point, aligns the penetration point, realizes rapid alignment, changes the grouting method, avoids the TBM being limited by the working space, accurately aligns the penetration point, and improves the grouting and water blocking effect.

[0071] The driving assembly includes an auxiliary reinforcing rib 22 and a motor 14. The auxiliary reinforcing rib 22 is fixedly connected between the circumferential inner walls of the tube body 1. The motor 14 is fixedly connected to the side end of the auxiliary reinforcing rib 22. The output end of the motor 14 extends to the side end of the auxiliary reinforcing rib 22. The output end of the motor 14 is fixedly connected to the driving gear 13.

[0072] In the present invention, the auxiliary reinforcing ribs 22 are used to support and fix the motor 14 . The motor 14 is a three-phase asynchronous motor. The output end of the motor 14 is fixedly connected to the driving gear 13 . The motor 14 provides power for the rotation of the rotating sleeve 10 .

[0073] The sealing mechanism includes a sealing groove 6 and a sealing ring 7. There are two sealing grooves 6, which are opened on the circumferential surfaces of the two mud guard rings 5. There are two sealing rings 7, which are fixedly connected to the two sealing grooves 6. The two sealing rings 7 are tightly attached to the circumferential surface of the movable ring 8.

[0074] In the present invention, two sealing grooves 6 are opened to accommodate and fix two sealing rings 7. The two sealing rings 7 seal the gap between the two mud retaining rings 5 ​​and the movable ring 8 by deformation. At the same time, during the resetting process of the movable ring 8, the two sealing rings 7 are used to scrape off the solidified mud attached to the circumferential surface of the movable ring 8, thereby realizing the resetting and detachment of the grouting port 18 and the rotating sleeve 10, and realizing rapid resetting.

[0075] The slurry pump mechanism includes a grouting pump box 26, a guide pipe 28, an Ω-shaped grouting groove 21, a docking block 20, a second support frame 33, a first support frame 25, a control box 27 and a threaded docking hole 32. The docking block 20 is fixedly connected to the circumferential inner wall of the pipe body 1. Two threaded docking holes 32 are provided. The two threaded docking holes 32 are opened at the top of the docking block 20. The Ω-shaped grouting groove 21 is opened in the pipe body 1. The Ω-shaped grouting groove 21 is connected to the two threaded docking holes 32. It is connected to the electronic grouting valve 19, the second support frame 33 is fixedly connected to the circumferential inner wall of the pipe body 1, the grouting pump box 26 is fixedly connected to the side end of the second support frame 33, two guide pipes 28 are provided, one end of the two guide pipes 28 is fixedly connected to the side end of the grouting pump box 26, and the other end of the two guide pipes 28 is fixedly connected to the two threaded docking holes 32, the first support frame 25 is fixedly connected to the inner wall of the pipe body 1, and the control box 27 is fixedly connected to the side end of the first support frame 25.

[0076] In the present invention, the docking block 20 is used to dock the two guide tubes 28, the two threaded docking holes 32 are opened to threadedly connect the two guide tubes 28, the Ω-shaped grouting groove 21 is opened to guide the mixed mud to the electronic grouting valve 19, the second support frame 33 is used to support and fix the grouting pump box 26, and the grouting pump box 26 is assembled with a cement pumping device to pump the mixed mud into the two guide tubes 28, the two guide tubes 28 are used to guide the mixed mud to the two threaded docking holes 32, and the two threaded docking holes 32 are used to pump the mixed mud into the Ω-shaped grouting groove 21, and the first support frame 25 is used to support and fix the control box 27. The control box 27 is electrically connected to the grouting pump box 26, the pressure sensing ring 3, the multiple electric push rods 23, the motor 14, and the electronic grouting valve 19 for easy control. During the grouting process, the pressure sensing ring 3 maintains pressure monitoring at the penetration point. When the abnormal pressure threshold drops back to the normal pressure threshold, the control box 27 controls the electronic grouting valve 19 to close, and pumps clean water into a guide pipe 28 through the grouting pump box 26. The clean water passes through two guide pipes 28, two threaded docking holes 32 and the Ω-shaped grouting groove 21, and circulates in a ring shape to flush out the remaining mud, thereby cleaning the residual mud and avoiding blockage.

[0077] A sensing groove 2 is provided on the circumferential surface of the tube body 1 , and a pressure sensing ring 3 is fixedly connected between the inner walls of the sensing groove 2 .

[0078] In the present invention, the sensing groove 2 is provided to accommodate the pressure sensing ring 3. The pressure sensing ring 3 is in a ring shape as a whole and is used to sense the circumferential surface of the tube body 1 at 360° to achieve full-range pressure sensing.

[0079] In addition, it should be noted that the pressure sensing ring 3 in the present embodiment belongs to a pressure sensor component, so that the abnormal threshold range and the normal threshold range of the corresponding geology can be set according to actual needs, and the control box 27 is used to detect whether the real-time threshold exceeds the range. If it exceeds the preset threshold range value, the control box 27 controls the motor 14 to work. Since this part of the detection method belongs to the scope of conventional technology, its working principle will not be described in detail in this solution.

[0080] A method for using a dual-mode TBM construction device for crossing a water-rich stratum comprises the following steps:

[0081] S1, pressure trigger:

[0082] The pipe body 1 is driven to move during the forward movement of the TBM. When the pipe body 1 moves to a place where water seepage occurs, the pressure sensing ring 3 monitors the pressure threshold, and the control box 27 receives the pressure threshold change transmitted by the pressure sensing ring 3 and makes an identification judgment. When the threshold is within the normal range, the motor 14 and the multiple electric push rods 23 are not started through the control box 27. When the threshold is within the abnormal range, the motor 14 and the multiple electric push rods 23 are started through the control box 27, thereby realizing the pressure triggering of the device.

[0083] S2. Seepage point alignment:

[0084] During the movement of the pipe body 1, after being triggered, multiple electric push rods 23 are powered on and started, and the output ends of the multiple electric push rods 23 simultaneously push the moving ring 8, so that the moving ring 8 drives the rotating sleeve 10 to move in the moving groove 4. During the movement of the moving ring 8, multiple slide grooves 16 and multiple sliders 17 slide and cooperate to guide the movement of the moving ring 8. When the rotating sleeve 10 and the penetration point are in the same cross section, the control box 27 controls the motor 14 to start, and the output end of the motor 14 drives the driving gear 13 to rotate. The driving gear 13 drives the driven gear 12 to rotate by meshing with the driven gear 12. The driven gear 12 drives the rotating sleeve 10 to rotate by meshing with the crown gear 11, so that the grouting port 18 rotates around the moving groove 4 to the penetration point, and the penetration point is aligned;

[0085] S3, grouting blockage:

[0086] The control box 27 controls the grouting pump box 26 to ensure that the pressure in the Ω-shaped grouting groove 21 is higher than the pressure at the penetration point through the two guide pipes 28 and the threaded docking hole 32. The control box 27 controls the electronic grouting valve 19 to open. The control box 27 starts the grouting pump box 26 to guide the mixed cement slurry through a guide pipe 28 to a threaded docking hole 32, and then guides it to the Ω-shaped grouting groove 21 through the threaded docking hole 32. The Ω-shaped grouting groove 21 guides it to the electronic grouting valve 19 to achieve grouting and blocking of the penetration point.

[0087] S4. Residue slurry cleaning:

[0088] During the grouting process, the pressure sensing ring 3 keeps monitoring the pressure at the penetration point. When the abnormal pressure threshold drops back to the normal pressure threshold, the control box 27 controls the electronic grouting valve 19 to close, and pumps clean water into a guide pipe 28 through the grouting pump box 26. The clean water passes through the two guide pipes 28, the two threaded docking holes 32 and the Ω-shaped grouting groove 21, presenting an annular circulation, flushing out the remaining mud, and achieving residual mud cleaning;

[0089] S5, Reset and fall off:

[0090] When the grouting solidifies and the pressure sensing ring 3 senses that the pressure at the penetration point is constant, the control box 27 resets the output ends of the multiple electric push rods 23 to drive the movable ring 8 to reset. During the resetting process of the movable ring 8, the two sealing rings 7 are used to scrape off the solidified mud attached to the circumferential surface of the movable ring 8 to achieve the resetting and shedding of the grouting port 18 and the rotating sleeve 10.

[0091] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dual-mode TBM construction device for crossing a water-rich stratum, characterized in that: include; tube body(1); A movable groove (4), the movable groove (4) being formed on the circumferential surface of the tube body (1), and two mud retaining rings (5) being fixedly connected to the inner wall of the movable groove (4); A moving ring (8), the moving ring (8) being arranged between the inner walls of the moving groove (4), a rotating groove (29) being provided on the circumferential surface of the moving ring (8), and a sealing mechanism being provided between the moving ring (8) and the two mud guard rings (5); A rotating sleeve (10), the rotating sleeve (10) being rotatably connected in the rotating groove (29), an electronic grouting valve (19) being provided on the circumferential surface of the rotating sleeve (10), and a grouting port (18) being installed in the electronic grouting valve (19); A slurry pumping mechanism, the slurry pumping mechanism is arranged between the inner walls of the pipe body (1), and the slurry pumping mechanism is connected to the grouting port (18); and A linkage mechanism, the linkage mechanism being arranged in the moving groove (4), the linkage mechanism being connected to the rotating sleeve (10) and being used to move the grouting port (18); The linkage mechanism comprises a telescopic component, a sliding component, a driving component and a transmission component, wherein the telescopic component is arranged between the inner walls of the moving groove (4), the telescopic component is connected to the moving ring (8), the sliding component is arranged on the inner wall of the moving groove (4), the sliding component is connected to the moving ring (8), the transmission component is arranged between the inner walls of the tube body (1), the transmission component is connected to the rotating sleeve (10), the driving component is arranged between the circumferential inner walls of the tube body (1), and the driving component is connected to the transmission component; The telescopic assembly comprises a push rod groove (24) and an electric push rod (23), wherein a plurality of the push rod grooves (24) are provided, and the plurality of the push rod grooves (24) are opened between the inner walls of the moving groove (4), and a plurality of the electric push rods (23) are provided, and the plurality of the electric push rods (23) are fixedly connected in the plurality of push rod grooves (24), and the output ends of the plurality of the electric push rods (23) are all fixedly connected to the side ends of the moving ring (8); The sliding assembly comprises a slide groove (16) and a slider (17), wherein a plurality of the slide grooves (16) are provided, and the plurality of the slide grooves (16) are evenly opened on the annular inner wall of the movable groove (4), and a plurality of the sliders (17) are provided, and the plurality of the sliders (17) slide between the inner walls of the plurality of slide grooves (16), and the plurality of the sliders (17) are fixedly connected to the annular inner wall of the rotating sleeve (10); The transmission assembly comprises a gear groove (9), a meshing groove (15), a sliding tooth groove (31), a crown gear (11), a driven gear (12) and a driving gear (13); the gear groove (9) is arranged in the rotating sleeve (10); the gear groove (9) is connected to the rotating groove (29); the meshing groove (15) is arranged on the inner wall of the tube body (1); the meshing groove (15) is connected to the moving groove (4); the sliding tooth groove (31) is arranged on the side end of the moving ring (8); The sliding tooth groove (31) corresponds to the meshing groove (15), the crown gear (11) is arranged between the inner walls of the gear groove (9), the crown gear (11) is fixedly connected to the rotating sleeve (10), the driven gear (12) is rotatably connected between the inner walls of the meshing groove (15), the driven gear (12) is meshed with the crown gear (11), the driving gear (13) is arranged between the inner walls of the tube body (1), and the driving gear (13) is meshed with the driven gear (12); The driving assembly comprises an auxiliary reinforcing rib (22) and a motor (14), wherein the auxiliary reinforcing rib (22) is fixedly connected between the circumferential inner walls of the tube body (1), and the motor (14) is fixedly connected to the side end of the auxiliary reinforcing rib (22), and the output end of the motor (14) extends to the side end of the auxiliary reinforcing rib (22), and the output end of the motor (14) is fixedly connected to the driving gear (13).

2. A dual-mode TBM construction device for crossing a water-rich stratum according to claim 1, characterized in that: The sealing mechanism comprises a sealing groove (6) and a sealing ring (7), wherein two sealing grooves (6) are provided, and the two sealing grooves (6) are opened on the circumferential surfaces of two mud guard rings (5), and two sealing rings (7) are provided, and the two sealing rings (7) are fixedly connected in the two sealing grooves (6), and the two sealing rings (7) are in close contact with the circumferential surface of the moving ring (8).

3. A dual-mode TBM construction device for crossing a water-rich stratum according to claim 2, characterized in that: The grouting mechanism comprises a grouting pump box (26), a guide pipe (28), an Ω-shaped grouting groove (21), a docking block (20), a second support frame (33), a first support frame (25), a control box (27) and a threaded docking hole (32); the docking block (20) is fixedly connected to the circumferential inner wall of the pipe body (1); two threaded docking holes (32) are provided, and the two threaded docking holes (32) are opened at the top of the docking block (20); the Ω-shaped grouting groove (21) is opened in the pipe body (1); the Ω-shaped grouting groove (21) is connected to the two threaded docking holes (32); the Ω-shaped grouting groove (21) is connected to the two threaded docking holes (32); (21) is connected to the electronic grouting valve (19), the second support frame (33) is fixedly connected to the circumferential inner wall of the pipe body (1), the grouting pump box (26) is fixedly connected to the side end of the second support frame (33), two guide pipes (28) are provided, one end of the two guide pipes (28) is fixedly connected to the side end of the grouting pump box (26), and the other end of the two guide pipes (28) is fixedly connected to two threaded docking holes (32), the first support frame (25) is fixedly connected to the inner wall of the pipe body (1), and the control box (27) is fixedly connected to the side end of the first support frame (25).

4. A dual-mode TBM construction device for crossing a water-rich stratum according to claim 3, characterized in that: The circumferential surface of the tube body (1) is provided with a sensing groove (2), and a pressure sensing ring (3) is fixedly connected between the inner walls of the sensing groove (2).

5. A method for using a dual-mode TBM construction device for crossing a water-rich stratum, using the dual-mode TBM construction device for crossing a water-rich stratum according to claim 4, characterized in that: The steps include: S1, pressure trigger: The pipe body (1) is driven to move during the advancement of the TBM. When the pipe body (1) moves to a place where water seepage occurs, the pressure sensing ring (3) monitors the pressure threshold, and the control box (27) receives the pressure threshold change transmitted by the pressure sensing ring (3) and performs identification and judgment. When the threshold is within the normal range, the motor (14) and the plurality of electric push rods (23) are not started through the control box (27). When the threshold is within the abnormal range, the motor (14) and the plurality of electric push rods (23) are started through the control box (27), thereby realizing the pressure-sensitive triggering of the device. S2. Seepage point alignment: During the movement of the pipe body (1), after being triggered, the plurality of electric push rods (23) are powered on and started, and the output ends of the plurality of electric push rods (23) simultaneously push the moving ring (8), so that the moving ring (8) drives the rotating sleeve (10) to move in the moving groove (4). During the movement of the moving ring (8), the plurality of slide grooves (16) and the plurality of sliders (17) are slidably matched to guide the movement of the moving ring (8). When the rotating sleeve (10) and the penetration point are in the same cross section, the control box (27) controls the motor (14) to start, and the output end of the motor (14) drives the driving gear (13) to rotate. The driving gear (13) drives the driven gear (12) to rotate by meshing with the driven gear (12). The driven gear (12) drives the rotating sleeve (10) to rotate by meshing with the crown gear (11), so that the grouting port (18) rotates around the moving groove (4) to the penetration point, and the penetration point is aligned. S3, grouting blockage: The control box (27) controls the grouting pump box (26) to ensure that the pressure in the Ω-shaped grouting groove (21) is higher than the pressure at the penetration point through the two guide pipes (28) and the threaded docking hole (32). The control box (27) controls the electronic grouting valve (19) to open. The control box (27) starts the grouting pump box (26) to guide the mixed cement slurry through a guide pipe (28) to a threaded docking hole (32), and then guides it to the Ω-shaped grouting groove (21) through the threaded docking hole (32). The Ω-shaped grouting groove (21) guides it to the electronic grouting valve (19), thereby achieving grouting and blocking of the penetration point. S4. Residue slurry cleaning: During the grouting process, the pressure sensing ring (3) keeps monitoring the pressure at the penetration point. When the abnormal pressure threshold drops back to the normal pressure threshold, the control box (27) controls the electronic grouting valve (19) to close, and pumps clean water into a guide pipe (28) through the grouting pump box (26). The clean water flows in an annular manner through two guide pipes (28), two threaded butt holes (32) and the Ω-shaped grouting groove (21), flushing out the remaining mud, thereby achieving residual mud cleaning; S5, Reset and fall off: After the grouting solidifies, the pressure sensing ring (3) senses that the pressure at the penetration point is constant, and the control box (27) resets the output ends of the multiple electric push rods (23) to achieve the reset of the moving ring (8). During the reset process of the moving ring (8), the two sealing rings (7) are used to scrape off the solidified mud attached to the circumferential surface of the moving ring (8), so as to achieve the reset and separation of the grouting port (18) and the rotating sleeve (10).

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