Ultrahigh-strength prestressed thin-wall pipe pile and production equipment thereof

Abstract

The invention belongs to the technical field of concrete pipe piles, and particularly relates to an ultrahigh-strength prestressed thin-wall pipe pile and production equipment thereof. Pouring is conducted through the following steps that S1, Portland cement or ordinary Portland cement with the strength grade not lower than 42.5 is adopted as cement, and the quality of the Portland cement or ordinary Portland cement meets the GB175 specification; clean natural hard medium-coarse sand should be adopted as the fine aggregate, the fineness modulus should be 2.6-3.0, the quality should meet the requirements of the class I in GB and T14684-2022, hard granite or basalt gravel should be adopted as the coarse aggregate, particles are round, various parameter indexes meet the requirements of the class I in GB and T14685-2022, a polycarboxylic acid high-performance water reducing agent should be selected, various indexes should meet the GB8076 specification, and the fine aggregate and the coarse aggregate should meet the requirements of the class I in GB and T14685-2022. The admixture is preferably silica fume or fly ash sinking beads, the content of silicon dioxide in the silica fume is not lower than 90%, and the mass of the silica fume meets relevant regulations in GB and T18736; s2, high-quality raw materials and high-activity mineral admixtures are adopted to prepare concrete with the low water-binder ratio of 0.22-0.25, and the concrete C105 strength grade is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete pipe piles, in particular to an ultra-high-strength prestressed thin-wall pipe pile and production equipment thereof. Background Art

[0002] The application scenarios of ultra-high-strength prestressed thin-walled pipe piles are very wide, especially in the construction field. Due to their high strength and thin-wall design, ultra-high-strength prestressed thin-walled pipe piles can effectively bear the load of high-rise buildings and ensure the safety and stability of buildings.

[0003] In the current existing technology, ultra-high strength prestressed thin-walled pipe piles may refer to a type of prestressed concrete thin-walled pipe piles (PTC pipe piles), which have the characteristics of high strength and thin walls. Prestressed concrete thin-walled pipe piles are a hollow cylindrical slender concrete prefabricated component made by prestressing technology and centrifugal forming.

[0004] In the existing technology, when pouring concrete into the mold, since the concrete distribution inside the mold is difficult to be uniform, the poured concrete needs to be shaped to make the concrete more uniform inside the mold. This process usually requires workers to use tools such as shovels to flatten the piled concrete piles and spread the shoveled materials to other places inside the mold. This method makes the shaping process time-consuming and labor-intensive. Therefore, in order to solve the above problems, an ultra-high-strength prestressed thin-walled pipe pile and its production equipment are proposed. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes an ultra-high-strength prestressed thin-wall pipe pile and a production device thereof.

[0006] The technical solution adopted by the present invention to solve the technical problem is: the ultra-high-strength prestressed thin-walled pipe pile described in the present invention is cast by the following steps:

[0007] S1: The cement used should be silicate cement or ordinary silicate cement with a strength grade of not less than 42.5, and its quality should comply with the provisions of GB175. Clean natural hard medium-coarse sand should be used as fine aggregate, and the fineness modulus should be 2.6-3.0, and the quality should comply with the Class I requirements in GB and T14684-2022. Hard granite or basalt crushed stone should be used as coarse aggregate, and the particles should be round. All parameter indicators should comply with the Class I requirements in GB and T14685-2022. Polycarboxylic acid high-performance water-reducing agent should be selected, and all indicators should comply with the provisions of GB8076. Silica fume or fly ash beads should be used as admixtures, and the silicon dioxide content in silica fume should not be less than 90%, and the quality should comply with the relevant provisions in GB and T18736.

[0008] S2: Use high-quality raw materials and highly active mineral admixtures to prepare concrete with a low water-binder ratio of 0.22 to 0.25 to achieve concrete strength grade C105;

[0009] S3: Pour the mixed concrete into the mold, and then shape it to make the concrete more evenly laid. After shaping by the auxiliary shaping device, the upper mold is tightly connected to the lower mold by bolts, and then the steel strands in the mold are straightened and tightened. Through the cooperation of rollers and centrifuges, the concrete inside the mold is attached to the inner wall of the mold. Finally, the concrete is cured in the steam curing room, and then demoulding detection can be carried out.

[0010] A production equipment for ultra-high-strength prestressed thin-walled pipe piles, which is suitable for one of the ultra-high-strength prestressed thin-walled pipe piles mentioned above, and the auxiliary shaping device in S3 includes a first connecting plate and a fixing assembly; the first connecting plate contacts with a lower die base body above; a steel cage body is installed inside the lower die base body; a pair of first limiting strips are fixedly connected to the top of the outer wall of the first connecting plate; a connecting frame is provided at the top of the outer wall of the first connecting plate; two pairs of first connecting columns are rotatably connected inside the connecting frame; a pair of connecting plates are fixedly connected to the outer wall of the first connecting column; the first connecting column contacts with the first limiting strip; the connecting plate contacts with the first connecting plate; a fixing assembly is installed inside the connecting frame; a support plate is provided below the fixing assembly; the side wall of the support plate is fixedly connected to a limiting cylinder; the limiting cylinder is fitted with the lower die base body; the side wall of the limiting cylinder is fixedly connected to an outward-opening contact cylinder.

[0011] Preferably, the fixing assembly includes a slide plate, a slider, a fixed block, a sliding column, an extrusion block, a pull ring and a spring; the inner side wall of the connecting frame is in sliding contact with a pair of slide plates; the bottom of the outer side wall of the slide plate is fixedly connected to a support plate; the top of the outer side wall of the slide plate is fixedly connected to a slider; the top of the outer side wall of the connecting frame is fixedly connected to a pair of fixed blocks; the inner side wall of the fixed block is in sliding contact with a sliding column; one end of the sliding column is fixedly connected to an extrusion block; the other end is fixedly connected to a pull ring; the extrusion block is in contact with the slider; the side wall of the fixed block is fixedly connected to a spring; one end of the spring is fixedly connected to the extrusion block.

[0012] Preferably, the side walls of the connecting frame are provided with two pairs of second connecting plates; the second connecting plates are bolted to the connecting frame by fixing bolts; the side walls of the second connecting plates are fixedly connected with cleaning blocks; the cleaning blocks are in contact with the first connecting columns; the cleaning blocks are in contact with the connecting disk; the side walls of the second connecting plates are fixedly connected with second connecting columns; the side walls of the second connecting columns are fixedly connected with connecting strips; the connecting strips are fixedly connected to the cleaning blocks.

[0013] Preferably, a fixing plate is provided on the side wall of the support plate; the fixing plate is bolted to the support plate via connecting bolts.

[0014] Preferably, a pair of second limiting strips are fixedly connected to the top of the outer side wall of the first connecting plate; the side walls of the second limiting strips are in contact with the connecting frame; the side walls of the connecting frame are fixedly connected to a contact block; and the contact block is in contact with the first limiting strip.

[0015] Preferably, a pair of limit blocks are fixedly connected to the top of the outer side wall of the connecting frame; the limit blocks are in contact with the extrusion block; and the limit blocks are not in contact with the sliding block.

[0016] Preferably, a plurality of reinforcing columns are fixedly connected to the side walls of the support plate; and an outward-opening contact cylinder is fixedly connected to the side walls of the reinforcing columns.

[0017] Preferably, a plurality of balls are arranged inside the connecting frame; the balls rotate inside the connecting frame; the balls cannot be separated from the connecting frame; and the balls are in contact with the slide plate.

[0018] Beneficial effects of the present invention:

[0019] 1. The present invention provides an ultra-high-strength prestressed thin-walled pipe pile and production equipment thereof. By providing an outward-opening contact cylinder and a connecting frame, workers can quickly shape the concrete pile, reduce the time spent on shaping, and improve the efficiency of the shaping work.

[0020] 2. The present invention provides an ultra-high-strength prestressed thin-wall pipe pile and production equipment thereof. By providing an extrusion block and a sliding block, workers can quickly install and disassemble the equipment, thereby reducing the time spent by workers in installing and fixing the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 It is a schematic flow chart of the method of the present invention;

[0023] Figure 2 is a three-dimensional diagram of the connecting frame of the present invention;

[0024] Figure 3 It is a three-dimensional diagram of the outwardly open contact cylinder of the present invention;

[0025] Figure 4 is a three-dimensional diagram of the cleaning block of the present invention;

[0026] Figure 5 is a three-dimensional diagram of a reinforcing column in the present invention;

[0027] Figure 6 is a three-dimensional diagram of the extrusion block in the present invention;

[0028] Figure 7 It is a three-dimensional diagram of the ball in the present invention.

[0029] Legend:

[0030] 1. Steel cage body; 11. Lower die base body; 12. First connecting plate; 13. First limiting strip; 14. Connecting frame; 15. First connecting column; 16. Connecting plate; 17. Support plate; 18. Limiting cylinder; 19. Outward-opening contact cylinder; 2. Slide plate; 21. Sliding block; 22. Fixed block; 23. Sliding column; 24. Extrusion block; 25. Pull ring; 26. Spring; 3. Second connecting plate; 31. Cleaning block; 32. Second connecting column; 33. Connecting strip; 34. Fixing bolt; 4. Fixed plate; 41. Connecting bolt; 5. Second limiting strip; 51. Contact block; 6. Limiting block; 7. Reinforcement column; 8. Ball bearing. DETAILED DESCRIPTION

[0031] 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.

[0032] Specific examples are given below.

[0033] See also Figure 1 - Figure 7 The present invention provides an ultra-high-strength prestressed thin-walled pipe pile, which is cast by the following steps:

[0034] S1: The cement used should be silicate cement or ordinary silicate cement with a strength grade of not less than 42.5, and its quality should comply with the provisions of GB175. Clean natural hard medium-coarse sand should be used as fine aggregate, and the fineness modulus should be 2.6-3.0, and the quality should comply with the Class I requirements in GB and T14684-2022. Hard granite or basalt crushed stone should be used as coarse aggregate, and the particles should be round. All parameter indicators should comply with the Class I requirements in GB and T14685-2022. Polycarboxylic acid high-performance water-reducing agent should be selected, and all indicators should comply with the provisions of GB8076. Silica fume or fly ash beads should be used as admixtures, and the silicon dioxide content in silica fume should not be less than 90%, and the quality should comply with the relevant provisions in GB and T18736.

[0035] S2: Use high-quality raw materials and highly active mineral admixtures to prepare concrete with a low water-binder ratio of 0.22 to 0.25 to achieve concrete strength grade C105;

[0036] S3: Pour the mixed concrete into the mold, and then shape it to make the concrete more evenly laid. After shaping by the auxiliary shaping device, the upper mold is tightly connected to the lower mold by bolts, and then the steel strands in the mold are straightened and tightened. Through the cooperation of rollers and centrifuges, the concrete inside the mold is attached to the inner wall of the mold. Finally, the concrete is cured in the steam curing room, and then demoulding detection can be carried out.

[0037] A production equipment for ultra-high-strength prestressed thin-walled pipe piles, which is suitable for one of the ultra-high-strength prestressed thin-walled pipe piles mentioned above, wherein the auxiliary shaping device in S3 comprises a first connecting plate 12 and a fixing assembly; the first connecting plate 12 contacts with a lower die base body 11 above; a steel cage body 1 is installed inside the lower die base body 11; a pair of first limiting strips 13 are fixedly connected to the top of the outer wall of the first connecting plate 12; a connecting frame 14 is arranged at the top of the outer wall of the first connecting plate 12; two pairs of first connecting columns 15 are rotatably connected inside the connecting frame 14; a pair of connecting plates 16 are fixedly connected to the outer wall of the first connecting column 15; the first connecting column 15 contacts with the first limiting strip 13; the connecting plate 16 contacts with the first connecting plate 12; a fixing assembly is installed inside the connecting frame 14; a support plate 17 is arranged below the fixing assembly; a limiting cylinder 18 is fixedly connected to the side wall of the support plate 17; the limiting cylinder 18 is fitted with the lower die base body 11; an outward-opening contact cylinder 19 is fixedly connected to the side wall of the limiting cylinder 18. First, install the fixing assembly, push the connecting frame 14 to make the connecting plate 16 and the first connecting column 15 rotate in coordination, so that the outward-opening contact cylinder 19 and the limiting cylinder 18 move as a whole. During the movement of the outward-opening contact cylinder 19 and the limiting cylinder 18, the excessively high concrete pile is shaped. The concrete pile is first restricted by the outward-opening contact cylinder 19 and then by the limiting cylinder 18. At this time, the height of the concrete pile will be the same as the overall height of the lower mold base body 11, and the excess material will be pushed forward to make up for the deficiencies in other places. By setting the outward-opening contact cylinder 19 and the connecting frame 14, the staff can quickly shape the concrete pile, reduce the time spent on shaping, and improve the efficiency of the shaping work.

[0038] Further, such as Figure 2 , Figure 3 and Figure 6As shown, the fixing assembly includes a slide plate 2, a slider 21, a fixed block 22, a slide column 23, an extrusion block 24, a pull ring 25, and a spring 26; the inner side wall of the connecting frame 14 is in sliding contact with a pair of slide plates 2; the bottom of the outer side wall of the slide plate 2 is fixedly connected to a support plate 17; the top of the outer side wall of the slide plate 2 is fixedly connected to a slide block 21; the top of the outer side wall of the connecting frame 14 is fixedly connected to a pair of fixed blocks 22; the inner side wall of the fixed block 22 is in sliding contact with a slide column 23; one end of the slide column 23 is fixedly connected to an extrusion block 24; the other end is fixedly connected to a pull ring 25; the extrusion block 24 is in contact with the slide block 21; the side wall of the fixed block 22 is fixedly connected to a spring 26; one end of the spring 26 is fixedly connected to the extrusion block 24. When the equipment is working, different slide plates 2 are selected according to the different diameters of the lower die base body 11. After the selection is completed, the slide plate 2 is slid into the inside of the connecting frame 14. At this time, the slider 21 will contact the curved side of the extrusion block 24, and the slider 21 will squeeze the extrusion block 24. At this time, the spring 26 is squeezed and contracts. When the slider 21 slides to a suitable position, the slider 21 will lose the extrusion force on the extrusion block 24, and the spring 26 will push the extrusion block 24 to reset. The slider 21 will contact the flat side of the extrusion block 24. At this time, the extrusion block 24 will fix the slider 21, thereby making the slide plate 2 unable to move, thereby completing the fixation of the slide plate 2. By setting the extrusion block 24 and the slider 21, the staff can quickly install and disassemble the equipment, reducing the time spent by the staff to install and fix the equipment.

[0039] Further, such as Figure 2 and Figure 3 As shown, two pairs of second connecting plates 3 are provided on the side wall of the connecting frame 14; the second connecting plates 3 are bolted to the connecting frame 14 by fixing bolts 34; a cleaning block 31 is fixedly connected to the side wall of the second connecting plate 3; the cleaning block 31 is in contact with the first connecting column 15; the cleaning block 31 is in contact with the connecting plate 16; a second connecting column 32 is fixedly connected to the side wall of the second connecting plate 3; a connecting strip 33 is fixedly connected to the side wall of the second connecting column 32; the connecting strip 33 is fixedly connected to the cleaning block 31. When the equipment is working, due to the working environment, a small amount of concrete will splash or fall outward from the top of the first connecting plate 12, and the splashed concrete will fall on the top of the connecting plate 16, affecting the normal operation of the connecting plate 16 and the first connecting column 15. At this time, the second connecting plate 3 is bolted to the side wall of the connecting frame 14 by the fixing bolts 34. When the connecting plate 16 rotates, the cleaning block 31 can scrape off the material attached to the connecting plate 16 and the top of the first connecting column 15. The cleaning block 31 is set up to clean the splashed concrete generated during work, thereby reducing the probability of the splashed concrete affecting the operation of the equipment.

[0040] Further, such as Figure 2 and Figure 6As shown, a fixing plate 4 is provided on the side wall of the support plate 17; the fixing plate 4 is bolted to the support plate 17 by connecting bolts 41. When the equipment is working, the two support plates 17 can be connected by the fixing plate 4 and the connecting bolts 41. The setting of the fixing plate 4 and the connecting bolts 41 can increase the precision of the connection between the two support plates 17, reduce the probability of concrete flowing from the gap between the two support plates 17, and increase the stability of the equipment when working.

[0041] Further, such as Figure 3 and Figure 4 As shown, a pair of second limiting strips 5 are fixedly connected to the top of the outer side wall of the first connecting plate 12; the side wall of the second limiting strip 5 is in contact with the connecting frame 14; the side wall of the connecting frame 14 is fixedly connected with a contact block 51; the contact block 51 is in contact with the first limiting strip 13. When the equipment is working, the direction of movement of the connecting frame 14 is the direction of movement of the limiting cylinder 18 and the outward-opening contact cylinder 19. The second limiting strip 5 and the contact block 51 can assist in controlling the direction of movement of the connecting frame 14. By setting the second limiting strip 5 and the contact block 51, the probability of the direction of movement of the connecting frame 14 being affected is reduced, and the situation of equipment failure caused by the change of the movement direction of the connecting frame 14 is reduced.

[0042] Further, such as Figure 6 As shown, a pair of limit blocks 6 are fixedly connected to the top of the outer wall of the connecting frame 14; the limit blocks 6 are in contact with the extrusion block 24; the limit blocks 6 do not contact the slider 21. When the device is working, the extrusion block 24 will form a certain restriction on the slider 21. When the slider 21 reversely extrudes the extrusion block 24, the limit blocks 6 can provide a certain support force for the extrusion block 24. By setting the limit blocks 6, the probability of the slide column 23 bending due to extrusion when the device is used for a long time is reduced, and the stability of the device when working is increased.

[0043] Further, such as Figure 5 As shown, the side wall of the support plate 17 is fixedly connected with a plurality of reinforcing columns 7; the side wall of the reinforcing column 7 is fixedly connected with an outward-opening contact cylinder 19. When the equipment is working, the outward-opening contact cylinder 19 will bear the situation of contacting concrete for the first time, and the reinforcing column 7 can increase the stability of the outward-opening contact cylinder 19 when working. By setting the reinforcing column 7, the probability of the outward-opening contact cylinder 19 being distorted when the equipment works for a long time is reduced, and the situation that the distortion of the outward-opening contact cylinder 19 affects the normal shaping of the equipment is reduced.

[0044] Further, such as Figure 7As shown, a plurality of balls 8 are arranged inside the connecting frame 14; the balls 8 rotate inside the connecting frame 14; the balls 8 cannot be separated from the connecting frame 14; the balls 8 are in contact with the slide plate 2. When the device is working, the slide plate 2 will slide into the connecting frame 14, and the balls 8 can convert the sliding friction between the slide plate 2 and the connecting frame 14 into rolling friction. The balls 8 are arranged to facilitate the installation of the slide plate 2 by the staff.

[0045] Working principle: first install the fixing assembly, push the connecting frame 14 to make the connecting plate 16 rotate with the first connecting column 15, so that the outward-opening contact cylinder 19 and the limiting cylinder 18 move as a whole. In the process of moving the outward-opening contact cylinder 19 and the limiting cylinder 18, the excessively high concrete pile is shaped. The concrete pile is first restricted by the outward-opening contact cylinder 19 and then by the limiting cylinder 18. At this time, the height of the concrete pile will be the same as the overall height of the lower mold base body 11, and the excess material will be pushed forward to make up for the deficiencies in other places. By setting the outward-opening contact cylinder 19 and the connecting frame 14, the staff can quickly shape the concrete pile, reduce the time spent on shaping, and improve the efficiency of the shaping work. When the equipment is working, according to the lower mold base body 11, Different slide plates 2 are selected according to the diameters of the die base body 11. After the selection is completed, the slide plate 2 is slid into the inside of the connecting frame 14. At this time, the slider 21 will contact the curved side of the extrusion block 24, and the slider 21 will squeeze the extrusion block 24. At this time, the spring 26 is squeezed and contracts. When the slider 21 slides to a suitable position, the slider 21 will lose the extrusion force on the extrusion block 24, and the spring 26 will push the extrusion block 24 to reset. The slider 21 will contact the flat side of the extrusion block 24. At this time, the extrusion block 24 will fix the slider 21, thereby making the slide plate 2 unable to move, and completing the fixation of the slide plate 2. By setting the extrusion block 24 and the slider 21, the staff can quickly install and disassemble the equipment, reducing the installation of the fixed The time spent on the fixed equipment, when the equipment is working, due to the working environment, a small amount of concrete will splash or fall outward from the top of the first connecting plate 12, and the splashed concrete will fall on the top of the connecting plate 16, affecting the normal operation of the connecting plate 16 and the first connecting column 15. At this time, the second connecting plate 3 is bolted to the side wall of the connecting frame 14 through the fixing bolts 34. When the connecting plate 16 rotates, the cleaning block 31 can scrape off the materials attached to the connecting plate 16 and the top of the first connecting column 15. The cleaning block 31 is set up, and the splashed concrete generated during work can be cleaned to reduce the probability of splashed concrete affecting the operation of the equipment. When the equipment is working, the two support plates 17 can be connected by the fixing plate 4 and the connecting bolts 41. By setting the fixing plate 4 and the connecting bolts 41, the precision of the connection between the two support plates 17 can be increased, the probability of concrete flowing from the gap between the two support plates 17 can be reduced, and the stability of the equipment when working can be increased. When the equipment is working, the direction of movement of the connecting frame 14 is the direction of movement of the limiting cylinder 18 and the outward-opening contact cylinder 19. The second limiting strip 5 and the contact block 51 can assist in controlling the direction of movement of the connecting frame 14. By setting the second limiting strip 5 and the contact block 51, the probability of the direction of movement of the connecting frame 14 being affected is reduced, and the situation of equipment failure caused by the change of the moving direction of the connecting frame 14 is reduced. When the equipment is working, the extrusion block 24 will form a certain restriction on the slider 21. When the slider 21 reversely squeezes the extrusion block 24,The limit block 6 can provide a certain support force for the extrusion block 24. The limit block 6 is set to reduce the probability of bending of the slide column 23 due to extrusion when the equipment is used for a long time, and the stability of the equipment is increased. When the equipment is working, the outward-opening contact cylinder 19 will bear the first contact with concrete. The reinforcement column 7 can increase the stability of the outward-opening contact cylinder 19 when it is working. The reinforcement column 7 is set to reduce the probability of distortion of the outward-opening contact cylinder 19 when the equipment works for a long time, and reduce the situation that the distortion of the outward-opening contact cylinder 19 affects the normal shaping of the equipment. When the equipment is working, the slide plate 2 will slide into the inside of the connecting frame 14, and the ball 8 can convert the sliding friction between the slide plate 2 and the connecting frame 14 into rolling friction. The set ball 8 facilitates the installation of the slide plate 2 by the staff.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An ultra-high-strength prestressed thin-walled pipe pile is cast by the following steps: S1: The cement used should be silicate cement or ordinary silicate cement with a strength grade of not less than 42.5, and its quality should comply with the provisions of GB175. Clean natural hard medium-coarse sand should be used as fine aggregate, and the fineness modulus should be 2.6-3.0, and the quality should comply with the Class I requirements in GB and T14684-2022. Hard granite or basalt crushed stone should be used as coarse aggregate, and the particles should be round. All parameter indicators should comply with the Class I requirements in GB and T14685-2022. Polycarboxylic acid high-performance water-reducing agent should be selected, and all indicators should comply with the provisions of GB8076. Silica fume or fly ash beads should be used as admixtures, and the silicon dioxide content in silica fume should not be less than 90%, and the quality should comply with the relevant provisions in GB and T18736. S2: Use high-quality raw materials and highly active mineral admixtures to prepare concrete with a low water-binder ratio of 0.22 to 0.25 to achieve concrete strength grade C105; S3: Pour the mixed concrete into the mold, and then shape it to make the concrete more evenly laid. After shaping by the auxiliary shaping device, the upper mold is tightly connected to the lower mold by bolts, and then the steel strands in the mold are straightened and tightened. Through the cooperation of rollers and centrifuges, the concrete inside the mold is attached to the inner wall of the mold. Finally, the concrete is cured in the steam curing room, and then demoulding detection can be carried out.

2. A production device for ultra-high-strength prestressed thin-walled pipe piles, which is suitable for the ultra-high-strength prestressed thin-walled pipe piles mentioned in claim 1, characterized in that: The auxiliary shaping device in S3 comprises a first connecting plate (12) and a fixing assembly; the first connecting plate (12) contacts with a lower die base body (11) above; a steel cage body (1) is installed inside the lower die base body (11); a pair of first limit strips (13) are fixedly connected to the top of the outer wall of the first connecting plate (12); a connecting frame (14) is provided at the top of the outer wall of the first connecting plate (12); two pairs of first connecting columns (15) are rotatably connected inside the connecting frame (14); the first connecting columns (15) A pair of connecting plates (16) are fixedly connected to the outer wall; the first connecting column (15) is in contact with the first limiting strip (13); the connecting plate (16) is in contact with the first connecting plate (12); a fixing assembly is installed inside the connecting frame (14); a supporting plate (17) is arranged below the fixing assembly; a limiting cylinder (18) is fixedly connected to the side wall of the supporting plate (17); the limiting cylinder (18) is in contact with the lower mold base body (11); an outward-opening contact cylinder (19) is fixedly connected to the side wall of the limiting cylinder (18).

3. The production equipment of the ultra-high-strength prestressed thin-walled pipe pile according to claim 2, characterized in that: The fixing assembly comprises a slide plate (2), a slider (21), a fixing block (22), a slide column (23), an extrusion block (24), a pull ring (25) and a spring (26); the inner side wall of the connecting frame (14) is in sliding contact with a pair of slide plates (2); the bottom of the outer side wall of the slide plate (2) is fixedly connected to a support plate (17); the top of the outer side wall of the slide plate (2) is fixedly connected to a slide block (21); the top of the outer side wall of the connecting frame (14) is fixedly connected to a pair of fixing blocks (22); the inner side wall of the fixing block (22) is in sliding contact with a slide column (23); one end of the slide column (23) is fixedly connected to an extrusion block (24); the other end is fixedly connected to a pull ring (25); the extrusion block (24) is in contact with the slider (21); the side wall of the fixing block (22) is fixedly connected to a spring (26); one end of the spring (26) is fixedly connected to the extrusion block (24).

4. The production equipment of the ultra-high-strength prestressed thin-walled pipe pile according to claim 2, characterized in that: The side wall of the connecting frame (14) is provided with two pairs of second connecting plates (3); the second connecting plates (3) are bolted to the connecting frame (14) via fixing bolts (34); a cleaning block (31) is fixedly connected to the side wall of the second connecting plate (3); the cleaning block (31) is in contact with the first connecting column (15); the cleaning block (31) is in contact with the connecting plate (16); a second connecting column (32) is fixedly connected to the side wall of the second connecting plate (3); a connecting strip (33) is fixedly connected to the side wall of the second connecting column (32); the connecting strip (33) is fixedly connected to the cleaning block (31).

5. The production equipment of the ultra-high-strength prestressed thin-walled pipe pile according to claim 2, characterized in that: A fixing plate (4) is provided on the side wall of the support plate (17); the fixing plate (4) is bolted to the support plate (17) via connecting bolts (41).

6. The production equipment of the ultra-high-strength prestressed thin-walled pipe pile according to claim 2, characterized in that: A pair of second limiting strips (5) are fixedly connected to the top of the outer side wall of the first connecting plate (12); the side walls of the second limiting strips (5) are in contact with the connecting frame (14); the side walls of the connecting frame (14) are fixedly connected to a contact block (51); and the contact block (51) is in contact with the first limiting strip (13).

7. The production equipment of ultra-high-strength prestressed thin-walled pipe piles according to claim 2, characterized in that: A pair of limit blocks (6) are fixedly connected to the top of the outer side wall of the connecting frame (14); the limit blocks (6) are in contact with the extrusion block (24); and the limit blocks (6) are not in contact with the sliding block (21).

8. The production equipment of ultra-high-strength prestressed thin-walled pipe piles according to claim 2, characterized in that: A plurality of reinforcing columns (7) are fixedly connected to the side wall of the support plate (17); and an outward-opening contact cylinder (19) is fixedly connected to the side wall of the reinforcing column (7).

9. The production equipment of ultra-high-strength prestressed thin-walled pipe piles according to claim 2, characterized in that: A plurality of balls (8) are arranged inside the connecting frame (14); the balls (8) rotate inside the connecting frame (14); the balls (8) cannot be separated from the connecting frame (14); and the balls (8) are in contact with the slide plate (2).

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