A method for preparing a high-strength anti-cracking concrete to prepare a super-large diameter segment

Abstract

The application discloses a preparation method of a high-strength anti-cracking concrete for preparing an ultra-large-diameter pipe piece and relates to the technical field of pipe piece preparation. The preparation method of the high-strength anti-cracking concrete for preparing the ultra-large-diameter pipe piece is characterized in that the bottom of a first pipe piece is aligned with the top of a second pipe piece, the inclined surface of the bottom groove of the first pipe piece is in contact with the inclined surface of the top protrusion of the second pipe piece, the inclined surface of the bottom groove of the first pipe piece is in contact with the inclined surface of the top protrusion of the second pipe piece, the first pipe piece is guided to be aligned with the second pipe piece, bolts are used to connect the first pipe piece and the second pipe piece together, concrete is poured into the first pipe piece from the inside of the third pouring hole of the first pipe piece, the concrete is poured into the connecting position of the first pipe piece and the second pipe piece through the third pouring hole, and the concrete blocks the gap at the connecting position of the first pipe piece and the second pipe piece, so that the connecting position of the first pipe piece and the second pipe piece is free of gaps and water leakage.

Description

Technical Field

[0001] This invention relates to the field of segment preparation technology, specifically a method for preparing ultra-large diameter segments from high-strength crack-resistant concrete. Background Technology

[0002] Segmentation is a supporting component in tunnel construction. It can prevent collapse and instability, and can be assembled into the tunnel wall to form a lining, thus preventing the surrounding soil from being buried in the tunnel.

[0003] Currently, tunnel segments in tunnel construction are connected together using bolts. However, since the segments are formed by concrete casting, gaps can form at the connection point when two adjacent segments are connected. Silt and water from the surrounding soil can seep into the tunnel through these gaps, causing water accumulation and reducing the protective effect of the segments. To address this, a method for preparing ultra-large diameter tunnel segments using high-strength, crack-resistant concrete is proposed. By injecting concrete into the third injection hole of the first segment, a gap-free connection between the first and second segments is created, preventing water leakage at the connection point. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a method for preparing ultra-large diameter tunnel segments using high-strength, crack-resistant concrete, which solves the problem of silt and water in the soil seeping into the tunnel through the gaps at the segment connections.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a method for preparing ultra-large diameter pipe segments from high-strength crack-resistant concrete, specifically comprising the following steps:

[0008] Step 1, Mold Assembly: Place the fixed base on a horizontal surface, extend the first telescopic rod, the second telescopic rod, and the downward telescopic rod by controlling the switch. The first telescopic rod pushes the die frame to move and contact the left side of the hole-drawing plate. The second telescopic rod pushes the punch frame to move and contact the right side of the hole-drawing plate. The downward telescopic rod pushes the lower pressure plate to move downward and contact the top of the die frame and the punch frame.

[0009] Step 2, Injection Preparation: Extend the third telescopic rod, injection telescopic rod, fixing telescopic rod, and connecting telescopic rod by controlling the switch. The third telescopic rod moves the drawing block along the moving hole to the top of the drawing plate via the moving frame. The injection telescopic rod pushes the first injection rod along the first injection hole to the top of the drawing plate. The fixing telescopic rod pushes the second injection rod and the first connecting rod, the second injection hole and the first connecting hole, to the inside of the die frame via the fixing block, so that the first injection rod and the second injection rod are connected. The connecting telescopic rod pushes the second connecting rod along the second connecting hole to the inside of the punch frame via the fixing block, so that one end of the first connecting rod and the second connecting rod contacts the outside of the drawing block.

[0010] Step 3, Concrete Pouring: Extend the two sets of push-telescopic rods by controlling the switch to fix the injection mold frame inside the moving groove. Then, extend the right push-telescopic rod and retract the left push-telescopic rod by controlling the switch to move the injection mold frame along the moving groove to the bottom of the discharge hopper. Connect the first discharge joint and the second discharge joint. Open the valve outside the hose to allow the concrete inside the discharge hopper to enter the cavity formed by the extraction plate, the concave mold frame, the convex mold frame, and the lower pressure plate through the hose, the first discharge joint, and the second discharge joint. At the same time, extend the right push-telescopic rod and retract the left push-telescopic rod by controlling the switch. After 5 minutes, retract the right push-telescopic rod and extend the left push-telescopic rod. Repeat this process 10 times to evenly distribute the concrete in the cavity.

[0011] Step 4: Mold Hole Extraction: After the concrete has solidified, the third telescopic rod, the injection telescopic rod, the fixing telescopic rod, and the connecting telescopic rod are contracted by controlling the switch to extract the block, the first injection rod, the second injection rod, the first connecting rod, and the second connecting rod from the solidified concrete. Placement holes, bolt connection holes, and the third injection hole are left on the outside of the segment.

[0012] Step 5, Segment Splicing: When connecting the segments, align the bottom of the first segment with the top of the second segment. Simultaneously, insert the bolt into the placement hole at the bottom of the first segment and the nut into the placement hole at the top of the second segment. Rotate the bolt through the bolt connection hole to connect the nut and the bolt, allowing the first and second segments to contact each other. Next, pour concrete into the third injection hole of the first segment, allowing the concrete to enter the connection between the first and second segments and seal the gap at the connection.

[0013] The present invention is further configured such that: a vibration mechanism is fixedly connected to the top of the fixed base; a material feeding bin is fixedly connected to the top of the fixed base and above the vibration mechanism via a fixing block; an injection molding frame is fixedly connected to the top of the vibration mechanism; a hole-pulling mechanism is fixedly connected to the top of the injection molding frame; the left side of the injection molding frame is fixedly connected to the outside of the first telescopic rod via a fixing block; a die mechanism is fixedly connected to the telescopic ends of the first telescopic rod; the right side of the injection molding frame is fixedly connected to the outside of the second telescopic rod via a fixing block; a punch mechanism is fixedly connected to the telescopic ends of the second telescopic rod; and a pressing mechanism is fixedly connected to the top of the injection molding frame and above the hole-pulling mechanism.

[0014] The present invention is further configured such that: the hole-drawing mechanism includes a hole-drawing plate, the bottom of the hole-drawing plate is fixedly connected to the outside of three sets of third telescopic rods from left to right via fixing blocks, the telescopic ends of the three sets of third telescopic rods are all fixedly connected to the outside of the movable frame, the inside of the movable hole is slidably connected to the outside of the hole-drawing block, the outside of the hole-drawing block is fixedly connected to the top of the movable frame, the inside of the first injection hole is slidably connected to the outside of the first injection rod, the bottom of the hole-drawing plate and located on one side of the third telescopic rod is fixedly connected to the outside of the injection telescopic rod via fixing blocks, and the telescopic end of the injection telescopic rod is fixedly connected to one end of the first injection rod.

[0015] By adopting the above technical solution, a drawing block can be extended from the top of the drawing plate, so that the tube sheet has holes for placing bolts and nuts during injection molding, and a third injection hole can be left on the outside of the tube sheet by the first injection rod.

[0016] The present invention is further configured such that: the die mechanism includes a die frame, a first guide block is fixedly connected inside the die frame, the outside of the die frame is fixedly connected to the outside of the fixed telescopic rod through a fixing block, a first connecting hole is provided on the outside of the die frame, the inside of the first connecting hole is slidably connected to the outside of the first connecting rod, the inside of the second injection hole is slidably connected to the outside of the second injection rod, and one end of the second injection rod and one end of the first connecting rod are fixedly connected to the telescopic end of the fixed telescopic rod through a fixing block.

[0017] By adopting the above technical solution, an inclined protrusion can be left on the left side of the segment by the first guide block to facilitate the docking of the segments, and a third injection hole can be left on the outside of the segment by the second injection rod to facilitate the injection of concrete into the gap at the segment connection through the third injection hole.

[0018] The present invention is further configured such that: the punch mechanism includes a punch frame, a second guide block is fixedly connected inside the punch frame, the outside of the punch frame is fixedly connected to the outside of the connecting telescopic rod through a fixing block, the inside of the second connecting hole is slidably connected to the outside of the second connecting rod, and one end of the second connecting rod is fixedly connected to the telescopic end of the connecting telescopic rod through a fixing block.

[0019] By adopting the above technical solution, an inclined groove can be left on the right side of the tube segment through the second guide block, which facilitates the docking of the tube segments.

[0020] The present invention is further configured such that: the pressing mechanism includes a lower pressing plate, the top of the lower pressing plate is fixedly connected to the telescopic end of the lower pressing telescopic rod, the outside of the lower pressing telescopic rod is fixedly connected to the top of the injection mold frame by a fixing block, and a material discharge groove is provided on the top of the lower pressing plate and on the right side of the lower pressing telescopic rod, and the inside of the material discharge groove is fixedly connected to the outside of the first material discharge joint.

[0021] The bottom of the discharge hopper is connected to one end of the hose, a valve is installed on the outside of the hose, and the other end of the hose is fixedly connected to the outside of the second discharge connector.

[0022] By adopting the above technical solution, when the vibration mechanism is in the vibration cavity, the injection mold frame will drive the connection between the first discharge joint and the second discharge joint to move, and the hose can ensure that the concrete inside the discharge hopper flows into the cavity.

[0023] The invention is further configured such that: the vibration mechanism includes a fixed plate, the fixed plate has a movable groove, the left and right sides inside the movable groove are fixedly connected to the outside of the push telescopic rod through fixed blocks, the telescopic end of the push telescopic rod is fixedly connected to a push plate, and the outside of the push plate is slidably connected to the inside of the movable groove.

[0024] By adopting the above technical solution, the vibration mechanism can evenly distribute the concrete within the cavity.

[0025] (III) Beneficial Effects

[0026] This invention provides a method for preparing ultra-large diameter pipe segments from high-strength, crack-resistant concrete. It has the following beneficial effects:

[0027] (1) The method for preparing ultra-large diameter pipe segments using high-strength crack-resistant concrete involves injecting concrete into the third injection hole of the first pipe segment, allowing the concrete to be injected into the connection between the first and second pipe segments through the third injection hole. The concrete blocks the gap at the connection between the first and second pipe segments, thus preventing any gaps at the connection between the first and second pipe segments and preventing water leakage at the connection between the first and second pipe segments.

[0028] (2) The method for preparing ultra-large diameter pipe segments using high-strength crack-resistant concrete: when the first pipe segment is connected to the second pipe segment, the bottom of the first pipe segment is aligned with the top of the second pipe segment. The first pipe segment and the second pipe segment are moved so that the inclined surface of the groove at the bottom of the first pipe segment contacts the inclined surface of the protrusion at the top of the second pipe segment. This allows the inclined surface of the groove at the bottom of the first pipe segment to align with the inclined surface of the protrusion at the top of the second pipe segment, thus facilitating the connection of the first pipe segment and the second pipe segment together with bolts.

[0029] (3) The method for preparing ultra-large diameter pipe segments using high-strength crack-resistant concrete involves extending the third telescopic rod, the injection telescopic rod, the fixing telescopic rod, and the connecting telescopic rod to insert the extraction block, the first injection rod, the second injection rod, the first connecting rod, and the second connecting rod into the cavity formed by the extraction plate, the concave mold frame, the convex mold frame, and the lower pressure plate. This allows the extraction block, the first injection rod, the second injection rod, the first connecting rod, the second connecting rod, and the steel reinforcement support to block the stones in the concrete, preventing the stones from being vibrated to the left and right sides of the cavity during vibration. This ensures that the stones in the concrete are evenly distributed within the cavity, thereby improving the load-bearing capacity of the pipe segment. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a cross-sectional view of the hole-drawing mechanism of the present invention;

[0032] Figure 3 This is a cross-sectional view of the die mechanism of the present invention;

[0033] Figure 4 This is a cross-sectional view of the punch mechanism of the present invention;

[0034] Figure 5 This is a cross-sectional view of the pressing mechanism of the present invention;

[0035] Figure 6 This is a schematic diagram of the vibration mechanism of the present invention;

[0036] Figure 7 This is a cross-sectional view of the material dispensing hopper of the present invention;

[0037] Figure 8 This is a schematic diagram showing the connection between the first injection rod and the second injection rod of the present invention;

[0038] Figure 9 This is a schematic diagram of the segment connection of the present invention.

[0039] In the diagram, 1. Fixed base; 2. Vibration mechanism; 3. Feeding bin; 4. Injection mold frame; 5. Hole-pulling mechanism; 6. First telescopic rod; 7. Die mechanism; 8. Second telescopic rod; 9. Punch mechanism; 10. Pressing mechanism; 11. Hole-pulling plate; 12. Third telescopic rod; 13. Moving frame; 14. Moving hole; 15. Pulling block; 16. First injection hole; 17. First injection rod; 18. Injection telescopic rod; 19. Die frame; 20. First guide block; 21. 21. Fixed telescopic rod; 22. First connecting hole; 23. First connecting rod; 24. Second injection hole; 25. Second injection rod; 26. Punch frame; 27. Second guide block; 28. Connecting telescopic rod; 29. ​​Second connecting hole; 30. Second connecting rod; 31. Lower pressure plate; 32. Lower pressure telescopic rod; 33. First discharge joint; 34. Fixed plate; 35. Moving groove; 36. Pushing telescopic rod; 37. Push plate; 38. Hose; 39. Second discharge joint. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figure 1-9 This invention provides a technical solution: a method for preparing ultra-large diameter pipe segments from high-strength crack-resistant concrete, specifically including the following steps:

[0042] Step 1, Mold Assembly: Place the fixed base 1 on a horizontal ground, extend the first telescopic rod 6, the second telescopic rod 8 and the downward telescopic rod 32 by controlling the switch. The first telescopic rod 6 pushes the cavity mold frame 19 to move and contact the left side of the hole-drawing plate 11. The second telescopic rod 8 pushes the punch mold frame 26 to move and contact the right side of the hole-drawing plate 11. The downward telescopic rod 32 pushes the lower pressure plate 31 to move downward and contact the top of the cavity mold frame 19 and the punch mold frame 26.

[0043] Step 2, Injection Preparation: Extend the third telescopic rod 12, injection telescopic rod 18, fixing telescopic rod 21, and connecting telescopic rod 28 by controlling the switch. The third telescopic rod 12 moves the drawing block 15 along the moving hole 14 to the top of the drawing plate 11 via the moving frame 13. The injection telescopic rod 18 pushes the first injection rod 17 along the first injection hole 16 to the top of the drawing plate 11. The fixing telescopic rod 21 pushes the second injection rod 25 and the first connecting rod 23, the second injection hole 24, and the first connecting hole 22 to the inside of the die frame 19 via the fixing block, so that the first injection rod 17 and the second injection rod 25 are connected. The connecting telescopic rod 28 pushes the second connecting rod 30 along the second connecting hole 29 to the inside of the punch frame 26 via the fixing block, so that one end of the first connecting rod 23 and the second connecting rod 30 contacts the outside of the drawing block 15.

[0044] Step 3, Concrete Pouring: Extend the two sets of push telescopic rods 36 by controlling the switch to fix the injection mold frame 4 inside the moving groove 35. Then, extend the right push telescopic rod 36 and retract the left push telescopic rod 36 by controlling the switch to move the injection mold frame 4 along the moving groove 35 to the bottom of the discharge hopper 3. Connect the first discharge joint 33 and the second discharge joint 39. Open the valve outside the hose 38 to allow the concrete inside the discharge hopper 3 to enter the cavity formed by the extraction plate 11, the concave mold frame 19, the convex mold frame 26 and the lower pressure plate 31 through the hose 38, the first discharge joint 33 and the second discharge joint 39. At the same time, extend the right push telescopic rod 36 and retract the left push telescopic rod 36 by controlling the switch. After 5 minutes, retract the right push telescopic rod 36 and extend the left push telescopic rod 36. Repeat this process 10 times to distribute the concrete evenly in the cavity.

[0045] Step 4: Mold Hole Extraction: After the concrete has solidified, the third telescopic rod 12, the injection telescopic rod 18, the fixing telescopic rod 21 and the connecting telescopic rod 28 are contracted by controlling the switch to extract the extraction block 15, the first injection rod 17, the second injection rod 25, the first connecting rod 23 and the second connecting rod 30 from the solidified concrete. Placement holes, bolt connection holes and the third injection hole are left on the outside of the segment.

[0046] Step 5, Segment Splicing: When connecting the first segment and the second segment, align the bottom of the first segment with the top of the second segment. Simultaneously, insert the bolt into the placement hole at the bottom of the first segment and the nut into the placement hole at the top of the second segment. Rotate the bolt through the bolt connection hole to connect the nut and the bolt, allowing the first segment and the second segment to contact each other. Next, pour concrete into the third injection hole of the first segment, allowing the concrete to enter the connection between the first and second segments and seal the gap at the connection.

[0047] As a preferred option, such as Figure 1A vibration mechanism 2 is fixedly connected to the top of the fixed base 1. A material feeding bin 3 is fixedly connected to the top of the fixed base 1 and above the vibration mechanism 2 via a fixing block. An injection mold frame 4 is fixedly connected to the top of the vibration mechanism 2. A hole-pulling mechanism 5 is fixedly connected to the top of the injection mold frame 4. The left side of the injection mold frame 4 is fixedly connected to the outside of the first telescopic rod 6 via a fixing block. The first telescopic rod 6 is an ANT-26 model. The first telescopic rod 6 is electrically connected to an external power source and controlled by a control switch. A cavity mold mechanism 7 is fixedly connected to the telescopic ends of the first telescopic rod 6. The right side of the injection mold frame 4 is fixedly connected to the outside of the second telescopic rod 8 via a fixing block. The second telescopic rod 8 is an ANT-26 model. The second telescopic rod 8 is electrically connected to an external power source and controlled by a control switch. A punch mechanism 9 is fixedly connected to the telescopic ends of the second telescopic rod 8. A pressing mechanism 10 is fixedly connected to the top of the injection mold frame 4 and above the hole-pulling mechanism 5.

[0048] As a preferred option, such as Figure 6 The vibration mechanism 2 includes a fixed plate 34, which has a movable groove 35. The left and right sides inside the movable groove 35 are fixedly connected to the outside of the push telescopic rod 36 through fixed blocks. The push telescopic rod 36 is an ANT-26 model. The push telescopic rod 36 is electrically connected to an external power source and is controlled by a control switch. The telescopic end of the push telescopic rod 36 is fixedly connected to a push plate 37. The outside of the push plate 37 is slidably connected to the inside of the movable groove 35.

[0049] Furthermore, by controlling the switch to extend the right push-telescopic rod 36 and retract the left push-telescopic rod 36, after 5 minutes, the right push-telescopic rod 36 is retracted and the left push-telescopic rod 36 is extended, repeating this process 10 times to evenly distribute the concrete within the cavity.

[0050] As a preferred option, such as Figure 7 The bottom of the discharge hopper 3 is connected to one end of the hose 38. A valve is installed on the outside of the hose 38, and the other end of the hose 38 is fixedly connected to the outside of the second discharge connector 39.

[0051] Furthermore, when the vibration mechanism 2 vibrates the cavity, the injection mold frame 4 will move the connection between the first discharge joint 33 and the second discharge joint 39, thereby ensuring that the concrete inside the discharge hopper 3 flows into the cavity.

[0052] As a preferred option, such as Figure 2The hole-drawing mechanism 5 includes a hole-drawing plate 11. The bottom of the hole-drawing plate 11 is fixedly connected to the outside of three sets of third telescopic rods 12 from left to right via fixing blocks. The third telescopic rods 12 are of model ANT-26. The third telescopic rods 12 are electrically connected to an external power source and controlled by a control switch. The telescopic ends of the three sets of third telescopic rods 12 are fixedly connected to the outside of the moving frame 13. The inside of the moving hole 14 is slidably connected to the outside of the drawing block 15. The outside of the drawing block 15 is fixedly connected to the top of the moving frame 13. The inside of the first injection hole 16 is slidably connected to the outside of the first injection rod 17. The bottom of the hole-drawing plate 11, located on one side of the third telescopic rod 12, is fixedly connected to the outside of the injection telescopic rod 18 via fixing blocks. The injection telescopic rod 18 is of model ANT-26. The injection telescopic rod 18 is electrically connected to an external power source and controlled by a control switch. The telescopic end of the injection telescopic rod 18 is fixedly connected to one end of the first injection rod 17.

[0053] Furthermore, when the first segment is connected to the second segment, the bottom of the first segment is aligned with the top of the second segment. At the same time, the bolt is placed in the placement hole at the bottom of the first segment, and the nut is placed in the placement hole at the top of the second segment. The bolt is rotated through the bolt connection hole to connect the nut and the bolt, allowing the first segment to contact the second segment.

[0054] As a preferred option, such as Figure 3 The die mechanism 7 includes a die frame 19, with a first guide block 20 fixedly connected inside the die frame 19. The outside of the die frame 19 is fixedly connected to the outside of a fixed telescopic rod 21 via a fixing block. The fixed telescopic rod 21 is an ANT-26 model and is electrically connected to an external power source and controlled by a control switch. A first connecting hole 22 is provided on the outside of the die frame 19. The inside of the first connecting hole 22 is slidably connected to the outside of a first connecting rod 23. The inside of a second injection hole 24 is slidably connected to the outside of a second injection rod 25. One end of the second injection rod 25 and one end of the first connecting rod 23 are fixedly connected to the telescopic end of the fixed telescopic rod 21 via a fixing block.

[0055] As a preferred option, such as Figure 9 One end of the first injection rod 17 is in contact with one end of the second injection rod 25.

[0056] As a preferred option, such as Figure 4 The punch mechanism 9 includes a punch frame 26, with a second guide block 27 fixedly connected inside the punch frame 26. The outside of the punch frame 26 is fixedly connected to the outside of the connecting telescopic rod 28 via a fixing block. The connecting telescopic rod 28 is an ANT-26 model and is electrically connected to an external power source and controlled by a control switch. The inside of the second connecting hole 29 is slidably connected to the outside of the second connecting rod 30. One end of the second connecting rod 30 is fixedly connected to the telescopic end of the connecting telescopic rod 28 via a fixing block.

[0057] Furthermore, the exterior of the second guide block 27 is set as an inclined surface.

[0058] Furthermore, when the first tube segment is connected to the second tube segment, the bottom of the first tube segment is aligned with the top of the second tube segment. The first tube segment and the second tube segment are moved so that the inclined surface of the groove at the bottom of the first tube segment contacts the inclined surface of the protrusion at the top of the second tube segment. This allows the inclined surface of the groove at the bottom of the first tube segment to align with the inclined surface of the protrusion at the top of the second tube segment, facilitating the connection of the first tube segment and the second tube segment together with bolts.

[0059] As a preferred option, such as Figure 5 The pressing mechanism 10 includes a lower pressing plate 31, the top of which is fixedly connected to the telescopic end of a lower pressing telescopic rod 32. The lower pressing telescopic rod 32 is an ANT-26 model and is electrically connected to an external power source and controlled by a control switch.

[0060] The exterior of the downward telescopic rod 32 is fixedly connected to the top of the injection mold frame 4 by a fixing block. The top of the downward pressure plate 31 and the right side of the downward telescopic rod 32 are provided with a material discharge groove, and the interior of the material discharge groove is fixedly connected to the exterior of the first material discharge joint 33.

Claims

1. A method for preparing ultra-large diameter pipe segments from high-strength, crack-resistant concrete, characterized in that: Specifically, the following steps are included: Step 1, Mold Assembly: Place the fixed base (1) on a horizontal ground, extend the first telescopic rod (6), the second telescopic rod (8) and the downward telescopic rod (32) by controlling the switch. The first telescopic rod (6) pushes the cavity mold frame (19) to move and contact the left side of the hole-drawing plate (11). The second telescopic rod (8) pushes the punch frame (26) to move and contact the right side of the hole-drawing plate (11). The downward telescopic rod (32) pushes the lower pressure plate (31) to move downward and contact the top of the cavity mold frame (19) and the punch frame (26). Step 2, Injection Preparation: Extend the third telescopic rod (12), the injection telescopic rod (18), the fixing telescopic rod (21), and the connecting telescopic rod (28) by controlling the switch. The third telescopic rod (12) moves the extraction block (15) along the moving hole (14) to the top of the extraction plate (11) via the moving frame (13). The injection telescopic rod (18) pushes the first injection rod (17) along the first injection hole (16) to the top of the extraction plate (11). The fixing telescopic rod (21) is fixed. The block pushes the second injection rod (25) and the first connecting rod (23) to the second injection hole (24) and the first connecting hole (22) to move into the cavity frame (19), so that the first injection rod (17) and the second injection rod (25) are connected. The connecting telescopic rod (28) pushes the second connecting rod (30) along the second connecting hole (29) to the inside of the punch frame (26) through the fixed block, so that one end of the first connecting rod (23) and the second connecting rod (30) contacts the outside of the draw block (15). Step 3, Concrete Pouring: Extend the two sets of push telescopic rods (36) by controlling the switch to fix the injection mold frame (4) inside the moving groove (35). Extend the right push telescopic rod (36) and retract the left push telescopic rod (36) by controlling the switch to move the injection mold frame (4) along the moving groove (35) to the bottom of the discharge hopper (3). Connect the first discharge joint (33) and the second discharge joint (39). Open the valve outside the hose (38) to allow the concrete inside the discharge hopper (3) to pour. Concrete enters the cavity formed by the extraction plate (11), the concave mold frame (19), the convex mold frame (26), and the lower pressure plate (31) through the hose (38), the first discharge joint (33), and the second discharge joint (39). At the same time, the right push telescopic rod (36) is extended and the left push telescopic rod (36) is retracted by the control switch. After 5 minutes, the right push telescopic rod (36) is retracted and the left push telescopic rod (36) is extended. This process is repeated 10 times to distribute the concrete evenly in the cavity. Step 4, Mold Hole Extraction: After the concrete has solidified, the third telescopic rod (12), the injection telescopic rod (18), the fixing telescopic rod (21) and the connecting telescopic rod (28) are contracted by controlling the switch to extract the extraction block (15), the first injection rod (17), the second injection rod (25), the first connecting rod (23) and the second connecting rod (30) from the solidified concrete. Placement holes, bolt connection holes and the third injection hole are left on the outside of the pipe segment. Step 5, Segment Splicing: When connecting the segments, align the bottom of the first segment with the top of the second segment. Simultaneously, insert the bolt into the placement hole at the bottom of the first segment and the nut into the placement hole at the top of the second segment. Rotate the bolt through the bolt connection hole to connect the nut and the bolt, allowing the first and second segments to contact each other. Next, pour concrete into the third injection hole of the first segment, allowing the concrete to enter the connection between the first and second segments and seal the gap at the connection.

2. The method for preparing ultra-large diameter pipe segments from high-strength crack-resistant concrete according to claim 1, characterized in that: A vibration mechanism (2) is fixedly connected to the top of the fixed base (1). A feeding bin (3) is fixedly connected to the top of the fixed base (1) and above the vibration mechanism (2) via a fixing block. A mold frame (4) is fixedly connected to the top of the vibration mechanism (2). A hole-pulling mechanism (5) is fixedly connected to the top of the mold frame (4). The left side of the mold frame (4) is fixedly connected to the outside of the first telescopic rod (6) via a fixing block. A cavity mold mechanism (7) is fixedly connected to the telescopic end of the first telescopic rod (6). The right side of the mold frame (4) is fixedly connected to the outside of the second telescopic rod (8) via a fixing block. A punch mold mechanism (9) is fixedly connected to the telescopic end of the second telescopic rod (8). A pressing mechanism (10) is fixedly connected to the top of the mold frame (4) and above the hole-pulling mechanism (5).

3. The method for preparing ultra-large diameter pipe segments from high-strength crack-resistant concrete according to claim 2, characterized in that: The hole-drawing mechanism (5) includes a hole-drawing plate (11). The bottom of the hole-drawing plate (11) is fixedly connected to the outside of three sets of third telescopic rods (12) from left to right through a fixing block. The telescopic ends of the three sets of third telescopic rods (12) are fixedly connected to the outside of the moving frame (13). The inside of the moving hole (14) is slidably connected to the outside of the drawing block (15). The outside of the drawing block (15) is fixedly connected to the top of the moving frame (13). The inside of the first injection hole (16) is slidably connected to the outside of the first injection rod (17). The bottom of the hole-drawing plate (11) and one side of the third telescopic rod (12) is fixedly connected to the outside of the injection telescopic rod (18) through a fixing block. The telescopic end of the injection telescopic rod (18) is fixedly connected to one end of the first injection rod (17).

4. The method for preparing ultra-large diameter pipe segments from high-strength crack-resistant concrete according to claim 2, characterized in that: The die mechanism (7) includes a die frame (19), a first guide block (20) is fixedly connected inside the die frame (19), and the outside of the die frame (19) is fixedly connected to the outside of the fixed telescopic rod (21) through a fixing block. A first connecting hole (22) is opened on the outside of the die frame (19). The inside of the first connecting hole (22) is slidably connected to the outside of the first connecting rod (23). The inside of the second injection hole (24) is slidably connected to the outside of the second injection rod (25). One end of the second injection rod (25) and the first connecting rod (23) are fixedly connected to the telescopic end of the fixed telescopic rod (21) through a fixing block.

5. The method for preparing ultra-large diameter pipe segments from high-strength crack-resistant concrete according to claim 2, characterized in that: The punch mechanism (9) includes a punch frame (26), a second guide block (27) is fixedly connected inside the punch frame (26), the outside of the punch frame (26) is fixedly connected to the outside of the connecting telescopic rod (28) through a fixing block, the inside of the second connecting hole (29) is slidably connected to the outside of the second connecting rod (30), and one end of the second connecting rod (30) is fixedly connected to the telescopic end of the connecting telescopic rod (28) through a fixing block.

6. The method for preparing ultra-large diameter pipe segments from high-strength crack-resistant concrete according to claim 2, characterized in that: The pressing mechanism (10) includes a lower pressing plate (31), the top of the lower pressing plate (31) is fixedly connected to the telescopic end of the lower pressing telescopic rod (32), the outside of the lower pressing telescopic rod (32) is fixedly connected to the top of the injection mold frame (4) by a fixing block, a material discharge groove is provided on the top of the lower pressing plate (31) and on the right side of the lower pressing telescopic rod (32), and the inside of the material discharge groove is fixedly connected to the outside of the first material discharge joint (33).

7. The method for preparing ultra-large diameter pipe segments from high-strength crack-resistant concrete according to claim 2, characterized in that: The vibration mechanism (2) includes a fixed plate (34), which has a movable groove (35). The left and right sides inside the movable groove (35) are fixedly connected to the outside of the push telescopic rod (36) through fixed blocks. The telescopic end of the push telescopic rod (36) is fixedly connected to a push plate (37), and the outside of the push plate (37) is slidably connected to the inside of the movable groove (35).

8. The method for preparing ultra-large diameter pipe segments from high-strength crack-resistant concrete according to claim 1, characterized in that: The bottom of the discharge hopper (3) is connected to one end of the hose (38), a valve is installed on the outside of the hose (38), and the other end of the hose (38) is fixedly connected to the outside of the second discharge connector (39).

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