Embedded module for enhancing bending resistance of pile body and concrete pipe pile

Abstract

The utility model provides an embedded module for enhancing bending resistance of a pile body and a concrete pipe pile, which belong to the technical field of pile foundations, and comprise a plurality of arc-shaped reinforcing plates which are annularly distributed, and a gap is arranged between any two adjacent arc-shaped reinforcing plates; each horizontal reinforcing piece comprises a first connecting part and a second connecting part which are fixedly connected with the arc-shaped reinforcing plate; the annular reinforcing plate is connected with the second connecting part, and the outer side diameter of the annular reinforcing plate is smaller than the inner side diameter of a reinforcement cage in the concrete pipe pile. Before the concrete pipe pile is formed, the pre-embedded module is additionally arranged at the position with the maximum bending moment, the pre-embedded module is connected with the reinforcement cage in the concrete pipe pile, and then the concrete pipe pile is formed, so that the manufacturing cost of the concrete pipe pile is saved, the overall diameter of the formed concrete pipe pile is not increased, and the construction efficiency is improved. Therefore, the stress area is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of pile foundation engineering technology, and relates to a concrete pipe pile, particularly a pre-embedded module for enhancing the bending resistance of the pile body and the concrete pipe pile. Background Technology

[0002] Photovoltaic support foundations are an integral part of solar photovoltaic systems, primarily used to support and secure solar panels. Among various photovoltaic support foundation types, prestressed concrete piles are widely used due to their advantages such as high flexibility, high wind resistance and bearing capacity, low construction cost, high construction efficiency, and high durability.

[0003] Traditional photovoltaic (PV) piles mostly use ordinary prestressed high-strength concrete pipe piles. When these pipe piles are used in tidal flats or nearshore PV foundations, they are subjected to significant wave and water flow forces. The bending moment of the pipe pile reaches its maximum at a depth of 3 to 4 times its diameter below the mud surface. Because the centrifugal manufacturing process of the pipe piles results in a uniform, constant-section structure, to ensure sufficient bending strength below the mud surface, the entire pile body often needs to be reinforced with steel and concrete to meet the maximum bending moment requirement. This undoubtedly increases costs significantly.

[0004] In addition, the wave force is positively correlated with the diameter of the pipe pile. That is, the larger the diameter of the pipe pile, the greater the wave force it receives, and the greater the stress it experiences. Although increasing the diameter of the pipe pile can improve its bending bearing capacity, it will also lead to increased stress and further increase costs. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a concrete pipe pile that improves bending strength locally without increasing the overall diameter of the pipe pile.

[0006] The objective of this utility model can be achieved through the following technical solution: a pre-embedded module for enhancing the bending resistance of piles, comprising:

[0007] Multiple arc-shaped reinforcing plates are arranged in a ring to form a columnar structure with a preset diameter. Each arc-shaped reinforcing plate includes an inner arc-shaped concave surface and an outer arc-shaped convex surface. The inner arc-shaped concave surface of each arc-shaped reinforcing plate faces the axis of the columnar structure, and a gap is provided between any two adjacent arc-shaped reinforcing plates.

[0008] Multiple horizontal reinforcing members include a first connecting part and a second connecting part that are fixedly connected to the inner arc-shaped concave surface, and the first connecting part and the second connecting part are respectively located on the corresponding sides or ends of the horizontal reinforcing members, wherein the positions of the horizontal reinforcing members on two adjacent arc-shaped reinforcing plates correspond one-to-one;

[0009] At least two closed annular reinforcing plates are fixedly connected to the second connecting parts of the horizontal reinforcing members at both ends of the arc-shaped reinforcing plate, and the outer diameter of the annular reinforcing plate is smaller than the inner diameter of the steel cage in the concrete pipe pile.

[0010] In the aforementioned pre-embedded module for enhancing the bending resistance of the pile body, the horizontal reinforcing member is arranged in the form of a plate or a rod. When the horizontal reinforcing member is arranged in the form of a plate, it is a horizontal reinforcing plate, and the first connecting part is the first connecting side of the horizontal reinforcing plate connected to the arc-shaped reinforcing plate, and the second connecting part is the second connecting side of the horizontal reinforcing plate connected to the annular reinforcing plate. When the horizontal reinforcing member is arranged in the form of a rod, it is a horizontal reinforcing rod, and the first connecting part is the first connecting end face of the horizontal reinforcing plate connected to the arc-shaped reinforcing plate, and the second connecting part is the second connecting end face of the horizontal reinforcing plate connected to the annular reinforcing plate.

[0011] In the aforementioned pre-embedded module for enhancing the bending resistance of the pile body, the annular reinforcing plate is arranged in a circular or polygonal shape. When the annular reinforcing plate is arranged in a circular shape, the second connecting part is arranged in an arc shape and fits against the outer side of the annular reinforcing plate. When the annular reinforcing plate is arranged in a polygonal shape, the second connecting part is arranged in a triangular plane and fits against the corner of the annular reinforcing plate.

[0012] In the aforementioned pre-embedded module for enhancing the bending resistance of the pile body, the arc-shaped reinforcing plate is set with a variable diameter along the length direction, and the thickness of the middle part of the arc-shaped reinforcing plate is greater than the thickness of both ends of the arc-shaped reinforcing plate. The thickness gradually decreases from the middle part of the arc-shaped reinforcing plate to the ends of the arc-shaped reinforcing plate.

[0013] In the aforementioned pre-embedded module for enhancing the bending resistance of the pile body, there are six arc-shaped reinforcing plates, the spacing between two adjacent horizontal reinforcing members is between 300-600mm, and the thickness of the annular reinforcing plate is between 5-8mm and the length is between 50-100mm.

[0014] In the aforementioned pre-embedded module for enhancing the bending resistance of the pile body, when the horizontal reinforcing member is set in the form of a plate, the horizontal reinforcing member is a horizontal reinforcing plate, and the thickness of the horizontal reinforcing plate is between 4-5mm.

[0015] This utility model also provides a pre-embedded module to enhance the bending resistance of the pile, including:

[0016] Multiple arc-shaped reinforcing plates are arranged in a ring to form a columnar structure with a preset diameter. Each arc-shaped reinforcing plate includes an inner arc-shaped concave surface and an outer arc-shaped convex surface. The inner arc-shaped concave surface of each arc-shaped reinforcing plate faces the axis of the columnar structure, and a gap is provided between any two adjacent arc-shaped reinforcing plates.

[0017] Multiple horizontal reinforcing members include a first connecting part and a second connecting part that are fixedly connected to the inner arc-shaped concave surface. The first connecting part is located on the side or end of the horizontal reinforcing member, and the second connecting part is located on the surface of the horizontal reinforcing member. The positions of the horizontal reinforcing members on two adjacent arc-shaped reinforcing plates correspond one-to-one.

[0018] At least two closed annular reinforcing plates are fixedly connected to the second connecting parts of the horizontal reinforcing members at both ends of the arc-shaped reinforcing plate, and the inner diameter of the annular reinforcing plate is larger than the outer diameter of the steel cage in the concrete pipe pile.

[0019] In the aforementioned pre-embedded module for enhancing the bending resistance of the pile body, the horizontal reinforcing member is arranged in the form of a plate or a rod. When the horizontal reinforcing member is arranged in the form of a plate, it is a horizontal reinforcing plate, and the first connecting part is located on the connecting side of the horizontal reinforcing plate, and the second connecting part is located on the upper or lower surface of the horizontal reinforcing plate. When the horizontal reinforcing member is arranged in the form of a rod, it is a horizontal reinforcing rod, and the first connecting part is located on the connecting end face of the end of the horizontal reinforcing rod, and the second connecting part is located on the side surface of the horizontal reinforcing rod.

[0020] This utility model also provides a concrete pipe pile with the aforementioned pre-embedded module for enhancing the bending resistance of the pile body, comprising:

[0021] The pre-embedded module;

[0022] Reinforcing cage, including:

[0023] Multiple vertically arranged main ribs, each main rib being located between two adjacent arc-shaped reinforcing plates in the pre-embedded module, wherein the axial direction of the main ribs is consistent with the length direction of the arc-shaped reinforcing plates;

[0024] The stirrups are spirally wound around the main reinforcement, and the horizontal reinforcing member in the pre-embedded module is inserted into the gap between two adjacent stirrups. The annular reinforcing plate in the pre-embedded module is located inside the hollow cylinder formed by the stirrups.

[0025] This utility model also provides a concrete pipe pile with the aforementioned pre-embedded module for enhancing the bending resistance of the pile body, comprising:

[0026] The pre-embedded module;

[0027] Reinforcing cage, including:

[0028] Multiple vertically arranged main ribs, each main rib being located between two adjacent arc-shaped reinforcing plates in the pre-embedded module, wherein the axial direction of the main ribs is consistent with the length direction of the arc-shaped reinforcing plates;

[0029] The stirrups are spirally wound around the main reinforcement, and the horizontal reinforcing member in the pre-embedded module is inserted into the gap between two adjacent stirrups. The annular reinforcing plate in the pre-embedded module is located outside the hollow cylinder formed by the stirrups.

[0030] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0031] (1) By adding a pre-embedded module at the position of maximum bending moment before the concrete pipe pile is formed, and the pre-embedded module is connected to the steel cage in the concrete pipe pile, and then the concrete pipe pile is formed, the manufacturing cost of the concrete pipe pile is saved, and the overall diameter of the concrete pipe pile after forming is not increased, thereby reducing the stress area.

[0032] (2) The arc-shaped reinforcing plate in this embodiment is a galvanized steel plate. Because steel has strong tensile strength, it can greatly increase the bending bearing capacity at the specified location. Moreover, galvanized steel plate has high corrosion resistance, which can extend the service life of concrete pipe piles.

[0033] (3) The reason for setting multiple arc-shaped reinforcing plates and having gaps between adjacent arc-shaped reinforcing plates, instead of using a completely closed ring structure, is that when concrete pipe piles are cast, concrete is first injected and then centrifugally cast. The existence of gaps allows concrete to fill the gaps between adjacent arc-shaped reinforcing plates, thereby improving the connection strength between concrete and arc-shaped reinforcing plates. If it is a closed ring structure, the concrete will flow onto the surface of the arc-shaped reinforcing plates during centrifugal casting, and the two will only be connected by the adhesive force between them, resulting in poor firmness and affecting the service life of concrete pipe piles.

[0034] (4) The reason for setting up horizontal reinforcing members and annular reinforcing plates is that the welding between the horizontal reinforcing members and the annular reinforcing plates, and their interaction with the concrete, can enhance the mechanical anchoring force of the embedded modules in the radial direction. The embedded modules connected to the reinforcing cage, combined with the concrete, enable the concrete pipe pile to achieve not only axial strength enhancement but also radial strength enhancement, thereby improving the overall flexural bearing capacity of the concrete pipe pile. Furthermore, this solves the problem of low efficiency due to the incoordination between the curved reinforcing plates and concrete deformation, and the small anchoring force. It also solves the problem of the curved reinforcing plates being difficult to fix and prone to displacement during centrifugal production. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of a pre-embedded module for enhancing the bending resistance of a pile body according to this utility model. The horizontal reinforcing member is plate-shaped, and the circular annular reinforcing plate is connected to the end of the horizontal reinforcing member.

[0036] Figure 2 This is a schematic diagram of the structure of a pre-embedded module for enhancing the bending resistance of a pile body, wherein the horizontal reinforcing member is plate-shaped and a polygonal annular reinforcing plate is connected to the end of the horizontal reinforcing member.

[0037] Figure 3 This is a schematic diagram of the structure of a pre-embedded module for enhancing the bending resistance of a pile body, wherein the horizontal reinforcing member is rod-shaped and the annular reinforcing plate is connected to the end of the horizontal reinforcing member.

[0038] Figure 4 This is a schematic diagram of the structure of a concrete pipe pile according to the present invention, in which the annular reinforcing plate is located inside the steel reinforcement cage.

[0039] Figure 5 This is a schematic diagram of the structure of a pre-embedded module for enhancing the bending resistance of a pile body, wherein the horizontal reinforcing member is plate-shaped and a circular annular reinforcing plate is connected to the surface of the horizontal reinforcing member.

[0040] Figure 6 This is a schematic diagram of the structure of a pre-embedded module for enhancing the bending resistance of a pile body according to this utility model. The horizontal reinforcing member is rod-shaped, and a circular annular reinforcing plate is connected to the surface of the horizontal reinforcing member.

[0041] Figure 7 This is a schematic diagram of the structure of a concrete pipe pile according to the present invention, in which the annular reinforcing plate is located outside the steel reinforcement cage.

[0042] In the figure, 10 is an arc-shaped reinforcing plate; 11 is an inner arc-shaped concave surface; 12 is an outer arc-shaped convex surface; 20 is a horizontal reinforcing member; 21 is the first connecting part; 22 is the second connecting part; 30 is an annular reinforcing plate; 31 is a corner; 40 is a reinforcing cage; 41 is a main reinforcement bar; and 42 is a stirrup. Detailed Implementation

[0043] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0044] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0045] Example 1

[0046] like Figures 1 to 4 As shown, the present invention provides an embedded module for enhancing the bending resistance of a pile, comprising:

[0047] Multiple arc-shaped reinforcing plates 10 are arranged in a ring to form a columnar structure with a preset diameter. Each arc-shaped reinforcing plate 10 includes an inner arc-shaped concave surface 11 and an outer arc-shaped convex surface 12. The inner arc-shaped concave surface 11 of each arc-shaped reinforcing plate 10 faces the axis of the columnar structure, and a gap is provided between any two adjacent arc-shaped reinforcing plates 10.

[0048] Multiple horizontal reinforcing members 20 include a first connecting part 21 and a second connecting part 22 fixedly connected to the inner arc-shaped concave surface 11, and the first connecting part 21 and the second connecting part 22 are respectively located on the corresponding sides or ends of the horizontal reinforcing members 20, wherein the positions of the horizontal reinforcing members 20 on two adjacent arc-shaped reinforcing plates 10 correspond one-to-one.

[0049] At least two closed annular reinforcing plates 30 are fixedly connected to the second connecting part 22 of the horizontal reinforcing member 20 at both ends of the arc-shaped reinforcing plate 10, and the outer diameter of the annular reinforcing plate 30 is smaller than the inner diameter of the steel cage 40 in the concrete pipe pile.

[0050] It is worth noting that, in existing technologies, concrete pipe piles installed in tidal flats or nearshore areas are subject to significant wave and current forces. This causes the bending moment of the concrete pipe pile to reach its maximum at a point 3-4 times its diameter below the mud surface. Because the manufacturing process of concrete pipe piles dictates a uniform cross-section, the entire pile must be reinforced with steel and concrete according to the diameter required at the point of maximum bending moment, thus increasing manufacturing costs. Furthermore, since wave and current forces are positively correlated with the diameter of the concrete pipe pile—that is, the larger the diameter, the greater the wave and current forces—resulting in greater stress on the pile, increasing the pile diameter, while increasing bending capacity, also increases the stress-bearing area and manufacturing costs.

[0051] In this embodiment, by adding a pre-embedded module at the location of the greatest bending moment before the concrete pipe pile is formed, and the pre-embedded module is connected to the steel cage 40 in the concrete pipe pile, and then forming the concrete pipe pile, not only is the manufacturing cost of the concrete pipe pile saved, but the overall diameter of the formed concrete pipe pile is not increased, thereby reducing the stress area.

[0052] It is worth mentioning that the arc-shaped reinforcing plate 10 in this embodiment is a galvanized steel plate. Because steel has strong tensile strength, it can significantly increase the bending bearing capacity at the specified location. Moreover, galvanized steel plate has high corrosion resistance, which can extend the service life of concrete pipe piles.

[0053] Furthermore, the reason for setting multiple arc-shaped reinforcing plates 10, with gaps between adjacent arc-shaped reinforcing plates 10, instead of using a completely closed ring structure, is that when concrete pipe piles are cast, concrete is first injected and then produced by centrifugal casting. The existence of gaps allows concrete to fill the gaps between adjacent arc-shaped reinforcing plates 10, thereby improving the connection strength between the concrete and the arc-shaped reinforcing plates 10. If it were a closed ring structure, the concrete would flow onto the surface of the arc-shaped reinforcing plates 10 during centrifugal casting, relying solely on the adhesive force between the two, resulting in poor adhesion and affecting the service life of the concrete pipe pile.

[0054] Furthermore, in this embodiment, the pre-embedded module not only includes the arc-shaped reinforcing plate 10, but also includes a horizontal reinforcing member 20 and an annular reinforcing plate 30. The horizontal reinforcing member 20 is welded to the arc-shaped reinforcing plate 10, and the horizontal reinforcing member 20 is welded to the annular reinforcing plate 30.

[0055] In this embodiment, the horizontal reinforcing member 20 and the annular reinforcing plate 30 are provided because the welding between the horizontal reinforcing member 20 and the annular reinforcing plate 30, and their interaction with the concrete, can enhance the mechanical anchoring force of the embedded module in the radial direction. The embedded module connected to the reinforcing cage 40, in conjunction with the concrete, enables the concrete pipe pile to achieve not only axial strength enhancement but also radial strength enhancement, thereby improving the overall flexural bearing capacity of the concrete pipe pile. Furthermore, this solves the problem of low efficiency due to incoordination between the curved reinforcing plate 10 and concrete deformation, and the small anchoring force. It also addresses the issue of the curved reinforcing plate 10 being difficult to fix and prone to displacement during centrifugal production.

[0056] It is worth mentioning that multiple horizontal reinforcing members 20 are connected to the arc-shaped reinforcing plate 10, and the distance between two adjacent horizontal reinforcing members 20 is between 300-600mm, and the thickness of the annular reinforcing plate 30 is between 5-8mm and the length is between 50-100mm.

[0057] Preferably, the horizontal reinforcing member 20 is plate-shaped or rod-shaped. When the horizontal reinforcing member 20 is plate-shaped, it is a horizontal reinforcing plate, and the first connecting part 21 is the first connecting side of the horizontal reinforcing plate connected to the arc-shaped reinforcing plate 10, and the second connecting part 22 is the second connecting side of the horizontal reinforcing plate connected to the annular reinforcing plate 30. When the horizontal reinforcing member 20 is rod-shaped, it is a horizontal reinforcing rod, and the first connecting part 21 is the first connecting end face of the horizontal reinforcing plate connected to the arc-shaped reinforcing plate 10, and the second connecting part 22 is the second connecting end face of the horizontal reinforcing plate connected to the annular reinforcing plate 30.

[0058] It is worth mentioning that when the horizontal reinforcing member 20 is plate-shaped, the horizontal reinforcing member 20 is a horizontal reinforcing plate, and the thickness of the horizontal reinforcing plate is between 4-5mm. Multiple horizontal reinforcing plates can be connected to each arc-shaped reinforcing plate 10, but the annular reinforcing plate 30 is generally connected to the horizontal reinforcing plates at both ends of the arc-shaped reinforcing plate 10.

[0059] In addition, when the horizontal reinforcing member 20 is arranged in the shape of a rod, the horizontal reinforcing member 20 is a horizontal reinforcing rod, and the horizontal reinforcing rod can generally be a pin. Multiple horizontal reinforcing rods can be connected to each arc-shaped reinforcing plate 10. Generally, for a single arc-shaped reinforcing plate 10, although the number of horizontal reinforcing rods connected to the arc-shaped reinforcing plate 10 is greater than the number of horizontal reinforcing plates, the annular reinforcing plate 30 is generally still connected to the horizontal reinforcing rods at both ends of the arc-shaped reinforcing plate 10.

[0060] Preferably, the annular reinforcing plate 30 is circular or polygonal. When the annular reinforcing plate 30 is circular, the second connecting portion 22 is arc-shaped and fits against the outer surface of the annular reinforcing plate 30. When the annular reinforcing plate 30 is polygonal, the second connecting portion 22 is triangular and fits against the corner 31 of the annular reinforcing plate 30.

[0061] It is worth mentioning that the annular reinforcing plate 30 can be either circular or polygonal, but each has its own advantages and disadvantages.

[0062] When the annular reinforcing plate 30 is circular, its processing technology is relatively simple and the manufacturing efficiency is relatively high. However, since the annular reinforcing plate 30 and the horizontal reinforcing member 20 are connected in a surface-to-surface contact, there is no positioning structure between them. As a result, when the annular reinforcing plate 30 and the horizontal reinforcing member 20 are connected, it is impossible to accurately control the angle between two adjacent arc-shaped reinforcing plates 10. An additional positioning structure is needed to ensure the accurate angle between two adjacent arc-shaped reinforcing plates 10.

[0063] When the annular reinforcing plate 30 is polygonal, although its processing technology becomes more complex than that of a circular one, the polygonal annular reinforcing plate 30 has corners 31, which allows the horizontal reinforcing member 20 to be connected to the corners 31 of the annular reinforcing plate 30. This not only eliminates the need for additional positioning structures to connect the horizontal reinforcing member 20 to the annular reinforcing plate 30, but also allows for precise control of the angle between two adjacent arc-shaped reinforcing plates 10, thus accelerating the molding speed of the entire embedded module.

[0064] Furthermore, when the annular reinforcing plate 30 is arranged in a polygonal shape, the polygon is generally a regular polygon, such as a regular hexagon, a regular octagon, etc.

[0065] In addition, the number of arc-shaped reinforcing plates 10 is generally more than six. Therefore, when the number of arc-shaped reinforcing plates 10 is more than six, it indicates that the force distribution at the location of the pre-embedded module is relatively uniform and there are generally no weak points.

[0066] Preferably, the arc-shaped reinforcing plate 10 is provided with a variable diameter along its length, and the thickness of the middle part of the arc-shaped reinforcing plate 10 is greater than the thickness of both ends of the arc-shaped reinforcing plate 10, wherein the thickness gradually decreases from the middle part of the arc-shaped reinforcing plate 10 to the ends of the arc-shaped reinforcing plate 10.

[0067] In this embodiment, the arc-shaped reinforcing plate 10 is configured as a variable diameter structure, with a larger thickness at locations subject to greater bending moment and a smaller thickness at locations subject to less bending moment. This allows for full utilization of the material and reduces the overall manufacturing cost of the concrete pipe pile.

[0068] For example, if the length of the concrete pipe pile is 10m, the bending moment is the largest at the middle 1m and gradually decreases towards both ends, then the thickness of the arc-shaped reinforcing plate 10 in the middle can be set to 20mm, and the thickness at both ends can be reduced to 6mm.

[0069] This utility model also provides a concrete pipe pile, which includes:

[0070] Pre-embedded modules;

[0071] 40 steel reinforcement cages, including:

[0072] Multiple vertically arranged main ribs 41, and each main rib 41 is located between two adjacent arc-shaped reinforcing plates 10 in the pre-embedded module, wherein the axial direction of the main rib 41 is consistent with the length direction of the arc-shaped reinforcing plate 10;

[0073] The stirrups 42 are spirally wound around the main reinforcement 41, and the horizontal reinforcing member 20 in the pre-embedded module is inserted into the gap between two adjacent rings of stirrups 42. The annular reinforcing plate 30 in the pre-embedded module is located inside the hollow cylinder enclosed by the stirrups 42.

[0074] The concrete pipe pile manufacturing process in this embodiment includes the following steps:

[0075] S1: The horizontal reinforcing member 20 and the arc-shaped reinforcing plate 10 are welded and fixed through the first connecting part 21, and the horizontal reinforcing member 20 and the annular reinforcing plate 30 are welded and fixed through the second connecting part 22, forming a pre-embedded module;

[0076] S2: Insert multiple main reinforcing bars 41 into the two adjacent arc-shaped reinforcing plates 10 respectively;

[0077] S3: The stirrups 42 are spirally wound from one end of the main reinforcement 41 to the other end of the main reinforcement 41, so that the horizontal reinforcing member 20 is inserted into the gap between two adjacent rings of stirrups 42, and the annular reinforcing plate 30 is located inside the hollow cylinder enclosed by the stirrups 42, forming the skeleton of the concrete pipe pile.

[0078] S4: Place the skeleton from step S3 into the casting mold, and inject a certain amount of concrete into the mold. Use centrifugal casting to fill the hollow parts of the skeleton with concrete, and after shaping, form a concrete pipe pile.

[0079] Example 2

[0080] like Figures 5 to 7 As shown, the difference between this embodiment and embodiment one is that in embodiment one, the arc-shaped reinforcing plate 10 and the annular reinforcing plate 30 are connected to opposite sides of the horizontal reinforcing member 20, while in this embodiment the arc-shaped reinforcing plate 10 is connected to the side of the horizontal reinforcing member 20 and the annular reinforcing plate 30 is connected to the surface of the horizontal reinforcing member 20. The reason for this design is that the embedded module needs to be connected to the reinforcing cage 40 in the concrete pipe pile. When the arc-shaped reinforcing plate 10 and the annular reinforcing plate 30 are connected to the opposite sides of the horizontal reinforcing member 20, the diameter of the annular reinforcing plate 30 is smaller than the diameter of the reinforcing cage 40. That is, part of the embedded module's structure is located outside the reinforcing cage 40, and part of its structure is located inside the reinforcing cage 40, which increases the complexity of the connection between the embedded module and the reinforcing cage 40. However, when the arc-shaped reinforcing plate 10 is connected to the side of the horizontal reinforcing member 20, and the annular reinforcing plate 30 is connected to the surface of the horizontal reinforcing member 20, the diameter of the annular reinforcing plate 30 is larger than the diameter of the reinforcing cage 40. That is, the entire structure of the embedded module is located outside the reinforcing cage 40, which facilitates the connection between the embedded module and the reinforcing cage 40.

[0081] Furthermore, the horizontal reinforcing member 20 is arranged in the form of a plate or a rod. When the horizontal reinforcing member 20 is arranged in the form of a plate, it is a horizontal reinforcing plate, and the first connecting part 21 is located on the connecting side of the horizontal reinforcing plate, and the second connecting part 22 is located on the upper or lower surface of the horizontal reinforcing plate. When the horizontal reinforcing member 20 is arranged in the form of a rod, it is a horizontal reinforcing rod, and the first connecting part 21 is located on the connecting end face of the end of the horizontal reinforcing rod, and the second connecting part 22 is located on the side surface of the horizontal reinforcing rod.

[0082] This utility model also provides a concrete pipe pile, comprising:

[0083] Pre-embedded modules;

[0084] 40 steel reinforcement cages, including:

[0085] Multiple vertically arranged main ribs 41, and each main rib 41 is located between two adjacent arc-shaped reinforcing plates 10 in the pre-embedded module, wherein the axial direction of the main rib 41 is consistent with the length direction of the arc-shaped reinforcing plate 10;

[0086] The stirrups 42 are spirally wound around the main reinforcement 41, and the horizontal reinforcing member 20 in the pre-embedded module is inserted into the gap between two adjacent rings of stirrups 42. The annular reinforcing plate 30 in the pre-embedded module is located outside the hollow cylinder enclosed by the stirrups 42.

[0087] The concrete pipe pile manufacturing process in this embodiment includes the following steps:

[0088] S1: The horizontal reinforcing member 20 and the arc-shaped reinforcing plate 10 are welded and fixed through the first connecting part 21 to form a semi-finished product of the pre-embedded module;

[0089] S2: Position multiple main bars 41 using tooling, and use an automatic winding device to spirally extend the stirrups 42 from one end of the main bars 41 to the other end of the main bars 41 to form a steel cage 40. Steps S1 and S2 can be performed simultaneously at different work stations.

[0090] S3: Install the semi-finished product from step S1 onto the point of maximum bending moment on the steel cage 40 in step S2, and insert the horizontal reinforcing member 20 in the semi-finished product into the gap between two adjacent rings of stirrups 42.

[0091] S4: Insert the annular reinforcing plate 30 from one end of the steel cage 40 and abut it against the second connecting part 22 of the horizontal reinforcing member 20. Fix the annular reinforcing plate 30 and the horizontal reinforcing member 20 by welding to form the skeleton of the concrete pipe pile. The annular reinforcing plate 30 is located outside the hollow cylinder enclosed by the stirrups 42.

[0092] S5: Place the skeleton from step S4 into the casting mold, and inject a certain amount of concrete into the mold. Use centrifugal casting to fill the hollow parts of the skeleton with concrete, and form a concrete pipe pile after shaping.

[0093] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0094] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0095] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A pre-embedded module for enhancing the bending resistance of piles, characterized in that, include: Multiple arc-shaped reinforcing plates are arranged in a ring to form a columnar structure with a preset diameter. Each arc-shaped reinforcing plate includes an inner arc-shaped concave surface and an outer arc-shaped convex surface. The inner arc-shaped concave surface of each arc-shaped reinforcing plate faces the axis of the columnar structure, and a gap is provided between any two adjacent arc-shaped reinforcing plates. Multiple horizontal reinforcing members include a first connecting part and a second connecting part that are fixedly connected to the inner arc-shaped concave surface, and the first connecting part and the second connecting part are respectively located on the corresponding sides or ends of the horizontal reinforcing members, wherein the positions of the horizontal reinforcing members on two adjacent arc-shaped reinforcing plates correspond one-to-one; At least two closed annular reinforcing plates are fixedly connected to the second connecting parts of the horizontal reinforcing members at both ends of the arc-shaped reinforcing plate, and the outer diameter of the annular reinforcing plate is smaller than the inner diameter of the steel cage in the concrete pipe pile.

2. The pre-embedded module for enhancing the bending resistance of the pile body according to claim 1, characterized in that, The horizontal reinforcing member is arranged in the form of a plate or a rod. When the horizontal reinforcing member is arranged in the form of a plate, it is a horizontal reinforcing plate, and the first connecting part is a first connecting side of the horizontal reinforcing plate that connects to the arc-shaped reinforcing plate, and the second connecting part is a second connecting side of the horizontal reinforcing plate that connects to the annular reinforcing plate. When the horizontal reinforcing member is arranged in the form of a rod, it is a horizontal reinforcing rod, and the first connecting part is a first connecting end face of the horizontal reinforcing plate that connects to the arc-shaped reinforcing plate, and the second connecting part is a second connecting end face of the horizontal reinforcing plate that connects to the annular reinforcing plate.

3. The pre-embedded module for enhancing the bending resistance of the pile body according to claim 1, characterized in that, The annular reinforcing plate is either circular or polygonal. When the annular reinforcing plate is circular, the second connecting part is arc-shaped and fits against the outer side of the annular reinforcing plate. When the annular reinforcing plate is polygonal, the second connecting part is triangular and fits against the corner of the annular reinforcing plate.

4. The pre-embedded module for enhancing the bending resistance of the pile body according to claim 1, characterized in that, The arc-shaped reinforcing plate has a variable diameter along its length, and the thickness of the middle part of the arc-shaped reinforcing plate is greater than the thickness of both ends of the arc-shaped reinforcing plate. The thickness gradually decreases from the middle part of the arc-shaped reinforcing plate to the ends of the arc-shaped reinforcing plate.

5. The pre-embedded module for enhancing the bending resistance of the pile body according to claim 1, characterized in that, There are six arc-shaped reinforcing plates, the spacing between two adjacent horizontal reinforcing members is between 300-600mm, and the thickness of the annular reinforcing plate is between 5-8mm and the length is between 50-100mm.

6. The pre-embedded module for enhancing the bending resistance of the pile body according to claim 2, characterized in that, When the horizontal reinforcing member is plate-shaped, it is a horizontal reinforcing plate, and the thickness of the horizontal reinforcing plate is between 4-5 mm.

7. An embedded module for enhancing the bending resistance of piles, characterized in that, include: Multiple arc-shaped reinforcing plates are arranged in a ring to form a columnar structure with a preset diameter. Each arc-shaped reinforcing plate includes an inner arc-shaped concave surface and an outer arc-shaped convex surface. The inner arc-shaped concave surface of each arc-shaped reinforcing plate faces the axis of the columnar structure, and a gap is provided between any two adjacent arc-shaped reinforcing plates. Multiple horizontal reinforcing members include a first connecting part and a second connecting part that are fixedly connected to the inner arc-shaped concave surface. The first connecting part is located on the side or end of the horizontal reinforcing member, and the second connecting part is located on the surface of the horizontal reinforcing member. The positions of the horizontal reinforcing members on two adjacent arc-shaped reinforcing plates correspond one-to-one. At least two closed annular reinforcing plates are fixedly connected to the second connecting parts of the horizontal reinforcing members at both ends of the arc-shaped reinforcing plate, and the inner diameter of the annular reinforcing plate is larger than the outer diameter of the steel cage in the concrete pipe pile.

8. The pre-embedded module for enhancing the bending resistance of the pile body according to claim 7, characterized in that, The horizontal reinforcing member is arranged in the form of a plate or a rod. When the horizontal reinforcing member is arranged in the form of a plate, it is a horizontal reinforcing plate, and the first connecting part is located on the connecting side of the horizontal reinforcing plate, and the second connecting part is located on the upper or lower surface of the horizontal reinforcing plate. When the horizontal reinforcing member is arranged in the form of a rod, it is a horizontal reinforcing rod, and the first connecting part is located on the connecting end face of the end of the horizontal reinforcing rod, and the second connecting part is located on the side surface of the horizontal reinforcing rod.

9. A concrete pipe pile having an embedded module for enhancing the bending resistance of the pile body as described in any one of claims 1 to 6, characterized in that, include: The pre-embedded module; Reinforcing cage, including: Multiple vertically arranged main ribs, each main rib being located between two adjacent arc-shaped reinforcing plates in the pre-embedded module, wherein the axial direction of the main ribs is consistent with the length direction of the arc-shaped reinforcing plates; The stirrups are spirally wound around the main reinforcement, and the horizontal reinforcing member in the pre-embedded module is inserted into the gap between two adjacent stirrups. The annular reinforcing plate in the pre-embedded module is located inside the hollow cylinder formed by the stirrups.

10. A concrete pipe pile having an embedded module for enhancing the bending resistance of the pile body as described in claim 7 or 8, characterized in that, include: The pre-embedded module; Reinforcing cage, including: Multiple vertically arranged main ribs, each main rib being located between two adjacent arc-shaped reinforcing plates in the pre-embedded module, wherein the axial direction of the main ribs is consistent with the length direction of the arc-shaped reinforcing plates; The stirrups are spirally wound around the main reinforcement, and the horizontal reinforcing member in the pre-embedded module is inserted into the gap between two adjacent stirrups. The annular reinforcing plate in the pre-embedded module is located outside the hollow cylinder formed by the stirrups.

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