Quasi-rectangular jacking pipe rolling angle deviation rectifying device and method

Abstract

The invention discloses a quasi-rectangular jacking pipe rolling angle deviation rectifying device and method, relates to the technical field of jacking pipe deviation rectifying, effectively solves the technical problems of poor integrity, insufficient stability and high deviation rectifying difficulty, and comprises an ejection mechanism, a plurality of mutually attached pipe fittings and shield tunneling machine heads arranged at the outermost ends of the pipe fittings. Embedded parts are arranged on the inner side of the pipe fitting and the inner side of the shield tunneling machine head, a storage groove is formed in each embedded part, a connecting plate is arranged in each storage groove, a sliding groove communicated with the storage groove is formed in each embedded part, and a sliding block capable of limiting the connecting plate is slidably connected into each sliding groove. According to the shield tunneling machine, the pipe fitting and the shield tunneling machine head are quickly spliced through the assemblies such as the embedded parts and the connecting plate, balanced jacking force is provided through the jacking mechanism, the integrity is strengthened through the embedded parts and the rectangular square steel connecting plate, the overall performance is improved, and the construction efficiency is improved. And the condition that a single pipe fitting deflects independently due to a complex ground environment is reduced.

Description

Technical Field

[0001] This invention relates to the field of pipe jacking correction technology, specifically a rectangular pipe jacking roll angle correction device and method. Background Technology

[0002] During the construction of rectangular pipe jacking, the roll angle is often too large due to the cutterhead excavation rate not reaching 100% and uneven geological conditions, which leads to difficulties in receiving and subsequent construction. At the same time, the large roll angle affects the sealing effect of the pipe sections and the tunnel entrance, increasing the construction safety risks.

[0003] Therefore, deviation correction technology is a key link in ensuring construction quality. However, the current connection between pipe fittings and between pipe fittings and the jacking head is not rigid enough, and the overall integrity is still poor. It is easy to exacerbate the deviation risk due to loose parts or complex soil environment. In addition, the increase in long-distance and large-diameter pipe jacking projects further highlights the shortcomings of traditional technology in terms of stability and flexibility.

[0004] Meanwhile, existing monitoring relies heavily on manual measurement or equipment such as total stations. However, manual measurement cannot be synchronized with the pipe jacking operation for compensation, while total stations will follow the pipe jacking process and cause a decrease in measurement results. In particular, small deviations are easily overlooked. Even when deviations occur, current traditional correction methods still have many limitations. When traditional articulated correction methods deflect pipe fittings, manual adjustment of the deflected fittings by connecting them to hydraulic cylinders is required. The cylinders are extended and retracted to adjust the posture, which increases the difficulty and workload of correction and is prone to disturbing the formation due to excessive correction.

[0005] Based on this, the present invention provides a rectangular jacking pipe rolling angle correction device and method to solve the above problems. Summary of the Invention

[0006] In view of the above situation and to overcome the defects of the prior art, the present invention provides a rectangular jacking pipe rolling angle correction device and method. The present invention has an ingenious structure, focuses on practicality, and effectively solves the technical problems of poor overall integrity, insufficient stability, and high difficulty in correction work.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A type of rectangular jacking pipe rolling angle correction device includes a jacking mechanism, multiple mutually fitting pipe fittings, and a tunnel boring machine head located at the outermost end of the pipe fittings. Multiple evenly distributed embedded parts are fixedly installed on the multiple pipe fittings near the tunnel boring machine head and on the inner side of the tunnel boring machine head. Each embedded part has a receiving groove. The same connecting plate is snapped into the receiving groove on the same horizontal line. Each embedded part has two symmetrically distributed sliding grooves that communicate with the receiving groove. Each sliding groove has a sliding block that can limit the position of the connecting plate. A limiting compression spring placed in the sliding groove is fixedly installed between every two sliding blocks and one embedded part.

[0009] Preferably, each of the pre-embedded parts is fixedly installed with a fixing pin on one side in the storage groove, and each of the connecting plates is provided with a reserved hole that can match the fixing pin.

[0010] Preferably, a fixed column is fixedly installed on the inner side of the tunnel boring machine head, a rotating trigger plate is rotatably connected to the surface of the fixed column, a gravity ball is fixedly installed below the rotating trigger plate, and four circular limiting slots are provided on the inner side of the tunnel boring machine head with the center of the fixed column as the center. The upper two circular limiting slots are slidably connected to upper sliding rods at the same height, and an upper contact sensor is fixedly installed on one side of each upper sliding rod. The lower two circular limiting slots are slidably connected to lower sliding rods at the same height and offset from the upper sliding rods, and a lower contact sensor is slidably connected to each lower sliding rod. A buffer spring is fixedly installed between the lower sliding rod and the lower contact sensor.

[0011] Preferably, two symmetrically distributed fixing blocks are fixedly installed on the inner side of the tunnel boring machine head. Each fixing block is fixedly installed with an upper drive push rod. Each upper drive push rod output end is fixedly installed with a push groove frame. Each upper sliding rod and lower sliding rod are slidably connected in the push groove frame. Each circular limit groove frame is fixedly installed with a limit slider. The surfaces of the two upper sliding rods and lower sliding rods are provided with limit grooves that match the limit sliders.

[0012] Preferably, the shield machine head has side cavities on both sides near the bottom that communicate with the inside of the shield machine head, and each side cavity is rotatably connected to a material cylinder. The shield machine head surface near the bottom has a discharge port that communicates with the side cavity.

[0013] Preferably, two symmetrically distributed upper hinge frames are fixedly installed near the bottom of the tunnel boring machine head, and a lower hinge frame is fixedly installed on the surface of each material cylinder. An adjusting push rod that is electrically connected to the upper contact sensor is hinged between adjacent upper and lower hinge frames.

[0014] Preferably, an installation plate is slidably connected inside the tunnel boring machine head, and two evenly distributed storage boxes are fixedly installed on one side of the installation plate, with counterweights placed inside the storage boxes.

[0015] Preferably, two symmetrically distributed adjustment grooves are fixedly installed inside the tunnel boring machine head, and each adjustment groove is slidably connected to an adjustment rod fixedly installed on one side of the storage box.

[0016] Preferably, a push rod block is fixedly installed on the inner side of the tunnel boring machine head, a lower drive push rod is fixedly installed on one side of the push rod block, the lower drive push rod is electrically connected to the lower contact sensor, and a connecting block fixedly installed on one side of the mounting plate is fixedly installed at the output end of the lower drive push rod.

[0017] A method for a rectangular jacking pipe rolling angle correction device includes the following steps:

[0018] Step 1: First, select multiple pipe fittings and pre-embed multiple embedded parts in the multiple pipe fittings and the shield machine head. Then, use the jacking mechanism to push the multiple pipe fittings and the shield machine head into the soil. After that, take out multiple connecting plates and finally push the connecting plates into the embedded parts. Use the connecting plates to connect the multiple pipe fittings and the shield machine head into a stable whole, reducing the occurrence of angle deflection.

[0019] Step 2: After connecting multiple pipe fittings and the tunnel boring machine head, the positions of the upper and lower sliding rods can be adjusted, and the pipe jacking work can continue. When the tunnel boring machine head deflects during the pipe jacking process, the rotating trigger plate will rotate in the opposite direction to the tunnel boring machine head. At this time, the rotating trigger plate will first contact the lower contact sensor and trigger the lower drive push rod to work, driving the connecting block, mounting plate and counterweight block to move. By changing the counterweight, the deflection can be corrected without stopping the machine.

[0020] Step 3: If the deflection intensifies, i.e., the deflection angle is large, the rotary trigger plate will continue to rotate and contact the upper contact sensor. At this time, the machine stops and the adjusting push rod is triggered to drive the material cylinder to rotate, filling the soil from the material cylinder and the discharge port into the lower part of the shield machine head. The angular deviation is corrected by filling the soil. When the soil corrects the shield machine head, the rotary trigger plate disengages from the upper contact sensor and the lower sliding rod, the upper drive push rod and the adjusting push rod reset, and the jacking operation continues.

[0021] The present invention has the following technical advantages.

[0022] 1. This invention uses pre-embedded parts, connecting plates and other components to quickly assemble pipe fittings with the shield machine head. The jacking mechanism provides a balanced jacking force, and the evenly distributed pre-embedded parts and rectangular square steel connecting plates enhance the overall integrity and assist in the stable support of individual pipe fittings, reducing the situation where individual pipe fittings deflect independently due to complex ground environments, and greatly reducing the risk of construction deflection.

[0023] 2. This invention utilizes a fixed column, a gravity ball, and a rotating trigger plate, along with upper and lower contact sensors to identify the deflection amplitude. Small deflections are compensated for without stopping the machine by a counterweight, while large deflections are quickly corrected by injecting soil into the material cylinder, effectively ensuring the pipe jacking construction effect. The counterweight provides real-time dynamic compensation, achieving synchronous and corresponding small deflection compensation without stopping the machine, improving correction efficiency while ensuring pipe jacking efficiency. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 2 This is a schematic diagram of the assembly structure of the tunnel boring machine head, embedded parts, and connecting plate in this invention.

[0027] Figure 3 This is a schematic diagram of the assembly structure of the pipe fittings, tunnel boring machine head, and embedded parts in this invention.

[0028] Figure 4 This is a schematic diagram of the assembly structure of the connecting plate, reserved hole and storage groove in this invention.

[0029] Figure 5 This is a schematic diagram of the assembly structure of the material cylinder, mounting plate, and storage box in this invention.

[0030] Figure 6 This is a schematic diagram of the assembly structure of the discharge port, lower hinge frame, and adjusting push rod in this invention.

[0031] Figure 7 This is a schematic diagram of the assembly structure of the storage box, counterweight, and rotating trigger plate in this invention.

[0032] Figure 8 This is a schematic diagram of the assembly structure of the upper drive push rod, the fixed column, and the upper sliding rod in this invention.

[0033] Figure 9 This is a schematic diagram of the assembly structure of the adjusting slide, push rod block and lower drive push rod in this invention.

[0034] Figure label:

[0035] 1. Ejection mechanism; 2. Pipe fittings; 3. Tunnel boring machine head; 4. Embedded parts; 5. Connecting plate; 6. Reserved hole; 7. Storage slot; 8. Sliding slot; 9. Limiting spring; 10. Fixing pin; 11. Sliding block; 12. Material cylinder; 13. Mounting plate; 14. Storage box; 15. Counterweight; 16. Rotary trigger plate; 17. Discharge port; 18. Lower hinge frame; 19. Adjusting push rod; 20. Upper hinge frame; 21. Circular limiting slot 21. Frame; 22. Push slot frame; 23. Fixing block; 24. Upper drive push rod; 25. Fixing column; 26. Upper sliding rod; 27. Limiting slide groove; 28. Limiting slider; 29. ​​Upper contact sensor; 30. Lower sliding rod; 31. Lower contact sensor; 32. Buffer spring; 33. Connecting block; 34. Adjusting slide rod; 35. Adjusting slide groove; 36. Push rod block; 37. Lower drive push rod; 38. Side cavity; 39. Gravity ball. Detailed Implementation

[0036] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 9 The detailed description of the embodiments will make this clear. All references to the following embodiments are made with reference to the accompanying drawings.

[0037] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0038] This invention relates to a rectangular pipe jacking roll angle correction device, comprising a jacking mechanism 1, multiple interlocking pipe fittings 2, and a tunnel boring machine head 3 located at the outermost end of the pipe fittings 2. The jacking mechanism 1 is a structure consisting of a main mounting frame fixedly installed in the launching shaft, multiple symmetrically distributed high-power push rods, and the jacking frame. The high-power push rods are connected to a power supply and a controller. Multiple evenly distributed embedded parts 4 are fixedly installed on the pipe fittings 2 near the tunnel boring machine head 3 and on the inner side of the tunnel boring machine head 3. Each pipe fitting 2 has seven sections, and each section contains five embedded parts 4. Each embedded part 4 has a receiving groove 7. The same connecting plate 5 is snapped into the receiving groove 7 on the same horizontal line. The connecting plate 5 is a rectangular square steel plate. Each embedded part 4 has a receiving groove 7. There are two symmetrically distributed sliding grooves 8 that are connected to the storage groove 7. Each sliding groove 8 has a sliding block 11 that can limit the position of the connecting plate 5. The sliding block 11 is a trapezoidal block with a flat surface near the embedded part 4 and an inclined surface away from it. A limiting spring 9 is fixedly installed between every two sliding blocks 11 and an embedded part 4 and placed in the sliding groove 8. The limiting spring 9 can provide an outward elastic force to the sliding block 11, which can limit the connecting plate 5 in the storage groove 7. Each embedded part 4 has a fixing pin 10 fixedly installed on one side in the storage groove 7. Each connecting plate 5 has a reserved hole 6 that can match the fixing pin 10. The fixing pin 10 and the reserved hole 6 can limit the connecting plate 5 at multiple angles.

[0039] In this embodiment, firstly, five pre-embedded parts 4 are installed in the first seven pipe fittings 2 and the shield machine head 3 using bolts. Then, the connecting plate 5 is taken out and directly pressed into the receiving groove 7. The connecting plate 5 first pushes the two sliding blocks 11 into the limiting spring 9 and aligns the reserved hole 6 with the position of the fixing pin 10 until the connecting plate 5 enters the receiving groove 7. At this time, the connecting plate 5 is separated from the sliding block 11, and the sliding block 11 is no longer restricted by the connecting plate 5. The limiting spring 9 is released to push the sliding block 11 back to its original position. The plane of the sliding block 11, the fixing pin 10, and the receiving groove 7 are used to limit and support the connecting plate 5. The connecting plate 5 stably connects the first seven pipe fittings 2 and the shield machine head 3 as a whole.

[0040] As one embodiment, a fixed column 25 is fixedly installed on the inner side of the tunnel boring machine head 3. A rotating trigger plate 16 is rotatably connected to the surface of the fixed column 25. The rotating trigger plate 16 can only rotate on the fixed column 25 and cannot slide. A gravity ball 39 is fixedly installed below the rotating trigger plate 16. The gravity ball 39 keeps the trigger plate 16 relatively stable and horizontal. The inner side of the tunnel boring machine head 3 is provided with four circular limiting slots 21 centered on the center of the fixed column 25. The upper two circular limiting slots 21 are slidably connected to upper sliding rods 26 at the same height. Each upper sliding rod 26... Upper contact sensors 29 are fixedly installed on both sides, and the upper contact sensors 29 are connected to the power supply and the controller. Lower sliding rods 30, at the same height and offset from the upper sliding rod 26, are slidably connected within the two lower circular limit slots 21. Lower contact sensors 31 are slidably connected within the lower sliding rods 30, and the lower contact sensors 31 are connected to the power supply and the controller. By misaligning the upper contact sensors 29 and the lower sliding rods 30, they can be triggered under different conditions. A buffer spring 32 is fixedly installed between the lower sliding rods 30 and the lower contact sensors 31, and the buffer spring 32 can provide... The lower contact sensor 31 provides a buffer spring. Since the rotating trigger plate 16 will contact the lower contact sensor 31 first, the buffer spring 32 and the sliding mechanism of the lower contact sensor 31 ensure that it does not significantly restrict the rotation of the rotating trigger plate 16. When the angular deflection is large, the rotating trigger plate 16 can still contact the upper contact sensor 29. Two symmetrically distributed fixing blocks 23 are fixedly installed inside the shield machine head 3. Each fixing block 23 has an upper drive push rod 24 fixedly installed inside it. The upper drive push rod 24 is connected to the power supply and controller. Each drive push rod 24 has a fixed push slot frame 22 at its output end. The push slot frame 22 is a structure formed by two straight slots and a curved connecting frame. Each upper sliding rod 26 and lower sliding rod 30 is slidably connected in the push slot frame 22. Each circular limit slot frame 21 has a fixed limit slider 28. The surfaces of the two upper sliding rods 26 and lower sliding rods 30 are provided with limit grooves 27 that match the limit sliders 28. The setting of the limit sliders 28 and limit grooves 27 can ensure that the upper contact sensor 29 and the lower contact sensor 31 always correspond to the center of the fixed column 25.

[0041] In this embodiment, before the pipe jacking operation, the controller can first control the two upper drive push rods 24 to work synchronously, drive the two push slot frames 22 to slide, thereby pushing the two upper sliding rods 26 and the lower sliding rods 30 to slide within the circular limit slot frame 21, and adjust the specific positions of the upper sliding rods 26 and the lower sliding rods 30 according to the tilt error requirements.

[0042] As an example, the shield machine head 3 has side cavities 38 on both sides near the bottom, which are connected to the inside of the shield machine head 3. Each side cavity 38 is rotatably connected to a material cylinder 12. One side of the material cylinder 12 is provided with a soil injection connection port and a through hole. The soil injection connection port is used to connect to external soil conveying equipment, and the through hole is used for soil discharge. The shield machine head 3 has a discharge port 17 on the surface near the bottom, which is connected to the side cavity 38. Two symmetrically distributed upper hinge frames 20 are fixedly installed in the shield machine head 3 near the bottom. Each material cylinder 12 is fixedly installed on the surface. An adjustment push rod 19 is hinged between adjacent upper hinge frames 20 and lower hinge frames 18 and is electrically connected to an upper contact sensor 29. The adjustment push rod 19 is connected to a power supply and a controller. The left upper contact sensor 29 controls the left adjustment push rod 19 to work, while the right upper contact sensor 29 can control the right adjustment push rod 19.

[0043] In this embodiment, when the tunnel jacking operation is underway, if the angle deviation is large, such as the tunnel boring machine head 3 turning clockwise, a situation of left-high and right-low will occur. At this time, the rotating trigger plate 16 will contact the upper contact sensor 29 on the right and control the termination of the tunnel jacking operation. After the tunnel jacking operation is terminated, the upper contact sensor 29 sends a signal to control the right discharge port 17 to work, driving the right material cylinder 12 to rotate and align the through hole of the material cylinder 12 with the right discharge port 17. At this time, the workers start the external soil conveying equipment to inject soil from the material cylinder 12 and the discharge port 17 into the ground on the right side of the tunnel boring machine head 3. With the help of the gradually thickening soil, the right side of the tunnel boring machine head 3 is lifted up to correct the angle deviation.

[0044] As an example, a mounting plate 13 is slidably connected inside the shield machine head 3. Two evenly distributed storage boxes 14 are fixedly installed on one side of the mounting plate 13. A counterweight block 15 is placed inside the storage box 14. Two symmetrically distributed adjustment grooves 35 are fixedly installed inside the shield machine head 3. An adjustment rod 34 fixedly installed on one side of the storage box 14 is slidably connected in each adjustment groove 35. A push rod block 36 is fixedly installed inside the shield machine head 3. A lower drive push rod 37 is fixedly installed on one side of the push rod block 36. The lower drive push rod 37 is connected to the power supply and the controller. The lower drive push rod 37 is electrically connected to the lower contact sensor 30. The lower contact sensor 30 on the left can control the lower drive push rod 37 to advance, and the lower contact sensor 30 on the right can control the lower drive push rod 37 to retract. A connecting block 33 fixedly installed on one side of the mounting plate 13 is fixedly installed at the output end of the lower drive push rod 37.

[0045] In this embodiment, if an angle deflection occurs during the tunnel jacking operation, such as a clockwise deflection of the tunnel boring machine head 3, the tunnel boring machine head 3 will still be higher on the left and lower on the right. The rotating trigger plate 16 will contact the lower sliding rod 30 on the left and control the lower drive push rod 37 to advance. The advance of the lower drive push rod 37 can drive the mounting plate 13 and the counterweight block 15 to move to the left. With the weight of the counterweight block 15, the left side is pressed down, and the angle deflection can be compensated without stopping the machine.

[0046] A method for a rectangular jacking pipe rolling angle correction device includes the following steps:

[0047] Step 1: First, select the seven-section pipe fitting 2, and pre-embed multiple embedded parts 4 in the seven-section pipe fitting 2 and the shield machine head 3. Then, use the jacking mechanism 1 to push the seven-section pipe fitting 2 and the shield machine head 3 into the soil. After that, take out multiple connecting plates 5, and finally push the connecting plates 5 into the embedded parts 4. Use the connecting plates 5 to connect the seven-section pipe fitting 2 and one shield machine head 3 into a stable whole, reducing the occurrence of angle deflection.

[0048] Step 2: After connecting the seven-section pipe fitting 2 and the tunnel boring machine head 3, the positions of the upper sliding rod 26 and the lower sliding rod 30 can be adjusted, and the pipe jacking work can be repeated. When the tunnel boring machine head 3 deflects during the pipe jacking work, the rotating trigger plate 16 will rotate in the opposite direction to the tunnel boring machine head 3. At this time, the rotating trigger plate 16 will first contact the lower contact sensor 31 and trigger the lower drive push rod 37 to work, driving the connecting block 33, the mounting plate 13 and the counterweight block 15 to move. By changing the counterweight, the deflection can be corrected without stopping the machine.

[0049] Step 3: If the deflection intensifies, i.e., the deflection angle is large, the rotating trigger plate 16 will continue to rotate and contact the upper contact sensor 29. At this time, the machine will stop and the adjusting push rod 19 will be triggered to work, driving the material cylinder 12 to rotate and filling the soil from the material cylinder 12 and the discharge port 17 into the lower part of the shield machine head 3. The angle deviation is processed by filling the soil. When the soil straightens the shield machine head 3, the rotating trigger plate 16 will disengage from the upper contact sensor 29 and the lower sliding rod 30. The upper drive push rod 24 and the adjusting push rod 19 will reset and the pipe jacking work can continue.

[0050] Working principle:

[0051] S1. First, the seven-section pipe fitting 2 with the pre-embedded part 4 installed and the shield machine head 3 are pushed into the soil by the jacking mechanism 1. Then, the connecting plate 5 is pushed into the receiving groove 7 of the pre-embedded part 4. The sliding block 11, the limiting spring 9 and the fixing pin 10 cooperate with the reserved hole 6 to make the seven-section pipe fitting 2 and the shield machine head 3 form a stable whole.

[0052] S2. Before the pipe jacking, the controller controls the upper drive push rod 24 to drive the push slot frame 22, which drives the upper sliding rod 26 and the lower sliding rod 30 to slide in the circular limit slot frame 21. Combined with the limit slider 28 and the limit slide groove 27, the positions of the upper contact sensor 29 and the lower contact sensor 31 are adjusted to match the tilt error requirements.

[0053] S3. During the tunnel jacking process, when the shield machine head 3 deflects, the rotating trigger plate 16, which is stably horizontal, will rotate relative to the fixed column 25 under the action of the gravity ball 39. If the deflection is small, the rotating trigger plate 16 contacts the lower contact sensor 31, triggering the lower drive push rod 37 to drive the mounting plate 13, the adjusting slide rod 34, and the counterweight block 15 in the storage box 14 to move along the adjusting slide groove 35. The angle is compensated by the counterweight offset without stopping the machine. If the deflection is large, the rotating trigger plate 16 further contacts the upper contact sensor 29. At this time, the machine stops and the adjusting push rod 19 is triggered, driving the material cylinder 12 to rotate in the side cavity 38, so that the through hole of the material cylinder 12 corresponds to the discharge port 17. Soil is injected through the soil injection connection port to lift the corresponding side of the shield machine head 3 to complete the correction. After the correction, the upper drive push rod 24 and the adjusting push rod 19 are reset, and the tunnel jacking work can continue.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A kind of rectangular top pipe rolling angle rectification device, including ejection mechanism (1), multiple mutually adhering pipe fittings (2) and shield machine nose (3) being arranged in the outermost end of pipe fitting (2), it is characterized in that, A plurality of pipes (2) close to the shield machine head (3) and the inner side of the shield machine head (3) are fixedly installed with a plurality of uniformly distributed embedded parts (4), each of the embedded parts (4) is provided with a receiving groove (7), the receiving grooves (7) on the same horizontal line are connected with the same connecting plate (5), each of the embedded parts (4) is provided with two symmetrically distributed sliding grooves (8) which are communicated with the receiving groove (7), each of the sliding grooves (8) is slidably connected with a sliding block (11) capable of limiting the connecting plate (5), and each of the sliding blocks (11) and the embedded part (4) is fixedly installed with a limiting compression spring (9) arranged in the sliding groove (8).

2. A rectangular-like top tube roll angle correction device according to claim 1, characterized in that A fixed pin (10) is fixedly installed on one side of each of the embedded parts (4) arranged in the receiving groove (7), and each of the connecting plates (5) is provided with a reserved hole (6) capable of matching the fixed pin (10).

3. A kind of rectangular top tube rolling angle rectification device according to claim 1, characterized by, The inner side of the shield machine head (3) is fixedly installed with a fixed column (25), the surface of the fixed column (25) is rotatably connected with a rotary trigger plate (16), the lower side of the rotary trigger plate (16) is fixedly installed with a gravity ball (39), the inner side of the shield machine head (3) is provided with four circular limiting groove frames (21) with the fixed column (25) as the center, the upper two circular limiting groove frames (21) are slidably connected with upper sliding rods (26) at the same height, one side of each of the upper sliding rods (26) is fixedly installed with an upper contact sensor (29), the lower two circular limiting groove frames (21) are slidably connected with lower sliding rods (30) at the same height and staggered with the upper sliding rods (26), the lower sliding rods (30) are slidably connected with lower contact sensors (31), and the lower sliding rods (30) and the lower contact sensors (31) are fixedly installed with buffer compression springs (32).

4. A roll angle correction device for a quasi-rectangular top tube as defined in claim 3, characterized in that The inner side of the shield machine head (3) is fixedly installed with two symmetrically distributed fixed blocks (23), each of the fixed blocks (23) is fixedly installed with an upper driving push rod (24), the output end of each of the upper driving push rods (24) is fixedly installed with a push groove frame (22), each of the upper sliding rods (26) and the lower sliding rods (30) is slidably connected in the push groove frame (22), and each of the circular limiting groove frames (21) is fixedly installed with a limiting sliding block (28), and the surfaces of the two upper sliding rods (26) and the lower sliding rods (30) are provided with limiting sliding grooves (27) matched with the limiting sliding blocks (28).

5. A roll angle correction device for a quasi-rectangular top tube as defined in claim 3, characterized in that The positions close to the lower side of the two sides of the shield machine head (3) are provided with side cavities (38) communicated with the shield machine head (3), and each of the side cavities (38) is rotatably connected with a barrel (12), and the position close to the lower side of the surface of the shield machine head (3) is provided with a discharge port (17) communicated with the side cavity (38).

6. A roll angle correction device for a quasi-rectangular top tube as defined in claim 5, characterized in that Two upper hinged frames (20) are symmetrically arranged and fixedly installed in the shield machine head (3) near the lower position, a lower hinged frame (18) is fixedly installed on the surface of each said barrel (12), and an adjusting push rod (19) is hingedly connected between the adjacent upper hinged frame (20) and lower hinged frame (18) and electrically connected with the upper contact sensor (29).

7. A kind of rectangular top tube rolling angle rectification device according to claim 3, characterized by, The installation plate (13) is slidably connected in the shield machine head (3), and two evenly distributed storage boxes (14) are fixedly installed on one side of the installation plate (13).

8. A roll angle correction device for a quasi-rectangular top tube as defined in claim 7, characterized in that Two symmetrically distributed adjusting sliding grooves (35) are fixedly installed in the shield machine head (3), and an adjusting sliding rod (34) is slidably connected in each adjusting sliding groove (35) and fixedly installed on one side of the storage box (14).

9. A roll angle correction device for a quasi-rectangular top tube as defined in claim 7, characterized in that The push rod block (36) is fixedly installed on the inner side of the shield machine head (3), the lower driving push rod (37) is fixedly installed on one side of the push rod block (36), the lower driving push rod (37) is electrically connected with the lower contact sensor (30), and the output end of the lower driving push rod (37) is fixedly installed with the connecting block (33) fixedly installed on one side of the installation plate (13).

10. A method for a kind of rectangular top pipe rolling angle correction device, according to any one of claims 1 to 9, characterized in that, The steps include: Step one: select a plurality of pipes (2), embed a plurality of embedded parts (4) in the pipes (2) and the shield machine head (3), then use the ejection mechanism (1) to eject the pipes (2) and the shield machine head (3) into the soil, then take out a plurality of connecting plates (5), and finally push the connecting plates (5) into the embedded parts (4), and connect the plurality of pipes (2) and the shield machine head (3) into a stable whole by means of the connecting plates (5), so as to reduce the occurrence of angle deflection; Step two: after connecting the plurality of pipes (2) and the shield machine head (3), the positions of the upper sliding rod (26) and the lower sliding rod (30) can be adjusted, and the pipe jacking work is continued to be repeated, when the shield machine head (3) is deflected during the pipe jacking work, the rotating trigger plate (16) rotates in the opposite direction relative to the shield machine head (3), at this time, the rotating trigger plate (16) will first contact the lower contact sensor (31) and trigger the lower driving push rod (37) to work, driving the connecting block (33), the installation plate (13) and the counterweight (15) to move, and the deflection is corrected without stopping by changing the counterweight; Step three: if the deflection is intensified, that is, the deflection angle is large, the rotating trigger plate (16) will continue to rotate and contact the upper contact sensor (29), at this time, the machine is stopped and the adjusting push rod (19) is triggered to work, driving the barrel (12) to rotate, filling the soil from the position of the barrel (12) and the discharge port (17) into the lower side of the shield machine head (3), and processing the angle deviation by filling the soil, when the soil corrects the shield machine head (3), the rotating trigger plate (16) is separated from the upper contact sensor (29) and the lower sliding rod (30), the upper driving push rod (24) and the adjusting push rod (19) are reset, and the pipe jacking work can be continued.

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