A pcs support pile structure

Abstract

The utility model discloses a kind of PCS supporting pile structures, it is related to supporting pile technical field, and it includes: pile body, vertical rib pile body has pouring cavity with opening upwards, vertical rib pouring cavity provides storage space for concrete, vertical rib is vertically arranged in vertical rib pouring cavity, the opposite side of vertical rib pile body is provided with connecting portion, one vertical rib connecting portion is protruded with flange, another vertical rib connecting portion is provided with recess that can be matched with vertical rib flange;Corona beam, vertical rib corona beam is connected with vertical rib pile body top, vertical rib corona beam seals the opening of vertical rib pouring cavity, vertical rib vertical rib extends to vertical rib pouring cavity outside and is connected with vertical rib corona beam. The flange of connecting portion is matched with recess, can let adjacent pile body be quickly and accurately spliced, improve construction efficiency and the compactness of connection, enhance the stability of overall supporting structure. Vertical rib extends to corona beam and is connected, can firmly combine pile body with corona beam, so that corona beam can better transfer and disperse load, further strengthen the overall performance of supporting system.

Description

Technical Field

[0001] This utility model relates to the field of support pile technology, and in particular to a PCS support pile structure. Background Technology

[0002] In the field of foundation pit support engineering, retaining piles are a key structure for ensuring the stability of the foundation pit and preventing soil collapse. However, traditional retaining pile construction involves complex connections between adjacent piles, resulting in low construction efficiency and poor connection tightness, which can easily lead to gaps. This can seriously affect the overall stability of the support structure and may even cause leakage problems, threatening the safety of the foundation pit. As important components of the support system, if the connection between the piles and the capping beam is not firm, the capping beam will be unable to effectively transfer and distribute the load, significantly reducing the performance of the entire support system. Utility Model Content

[0003] To improve the mechanical properties of the support pile structure, this application provides a PCS support pile structure.

[0004] The PCS support pile structure provided in this application adopts the following technical solution: A PCS support pile structure includes: a pile body having an upward-opening casting cavity for storing concrete, vertical reinforcement bars being vertically arranged inside the casting cavity, and connecting portions on opposite sides of the pile body, one of the connecting portions having a protruding edge and the other connecting portion having a groove that mates with the protruding edge; a capping beam connected to the top of the pile body, the capping beam closing the opening of the casting cavity, and the vertical reinforcement bars extending outside the casting cavity and connected to the capping beam.

[0005] By adopting the above technical solution, the pouring cavity of the pile is used to store concrete, providing filling material for the pile to ensure its strength. The convex edge and groove of the connection part cooperate to allow adjacent piles to be spliced ​​quickly and accurately, improving construction efficiency and connection tightness, and enhancing the stability of the overall support structure. The vertical reinforcement extends to the capping beam and connects to firmly combine the pile with the capping beam, allowing the capping beam to better transfer and distribute loads, further strengthening the overall performance of the support system.

[0006] Optionally, it also includes a reinforcing cage, which is disposed at the top of the pile body, the vertical bars are connected to the reinforcing cage, and the capping beam is wrapped around the surface of the reinforcing cage.

[0007] By adopting the above technical solution, the reinforcing cage is placed at the top of the pile, providing an internal support structure for the capping beam and enhancing its load-bearing capacity. The vertical bars are connected to the reinforcing cage, which can more effectively transfer the force of the pile to the cage. The capping beam then wraps around the reinforcing cage, making the capping beam, the reinforcing cage, and the pile form a more stable whole, improving the collaborative performance of the entire support structure and enhancing its resistance to deformation.

[0008] Optionally, the reinforcing cage includes longitudinal bars and transverse bars, the longitudinal bars and transverse bars are arranged alternately, the two ends of the longitudinal bars are located away from the connecting part, and the vertical bars are connected to the transverse bars and / or the longitudinal bars.

[0009] By adopting the above technical solution, the longitudinal and transverse reinforcement bars are arranged in an alternating pattern to form a steel cage, creating a stable grid structure and enhancing the overall strength and rigidity of the steel cage. The ends of the longitudinal reinforcement bars are far from the connection points, avoiding interference from the connection points and ensuring that the longitudinal reinforcement bars function effectively within their designated areas. The vertical reinforcement bars are connected to the transverse and / or longitudinal reinforcement bars, allowing the force on the vertical bars to be transferred to the overall structure of the steel cage, further improving the connection strength between the steel cage and the piles and capping beam.

[0010] Optionally, the upper end of the vertical rib has a first hook, and the inner side of the first hook is fixedly connected to the horizontal rib and / or the longitudinal rib.

[0011] By adopting the above technical solution, the first hook at the upper end of the vertical bar is fixedly connected to the horizontal bar and / or longitudinal bar. This connection method increases the contact area between the vertical bar and the horizontal and longitudinal bars, and enhances the firmness of the connection. By hooking the horizontal bar and / or longitudinal bar, the hook applies prestress between the steel cage and the pile before the cap beam is poured, which enhances its resistance to deformation and other capabilities, and further ensures the reliability of the structure.

[0012] Optionally, the pile body is provided with spiral stirrups and multiple steel bars, the multiple steel bars are arranged vertically and in a circular array, the spiral stirrups are spirally arranged around the multiple steel bars, and the steel bars are fixedly connected to the inner side of the spiral stirrups.

[0013] By adopting the above technical solution, multiple steel bars are arranged in a ring array to provide uniformly distributed longitudinal support force for the pile. The spiral stirrups are arranged around the steel bars to provide lateral restraint, enhance the shear and torsional resistance of the pile, and improve the strength and durability of the pile, so as to cope with the load from the soil pressure and the ground.

[0014] Optionally, the spiral stirrups include a first stirrup and a second stirrup, the second stirrup being located in the middle of the pile body, the first stirrup being located at both ends of the pile body, and the two ends of the second stirrup being connected to the first stirrup, wherein the binding density of the first stirrup is greater than that of the second stirrup.

[0015] By adopting the above technical solution, the first stirrup is located at both ends of the pile, and its binding density is greater than that of the second stirrup. This provides stronger restraint to the more complex and stress-concentrated areas at both ends of the pile, enhancing the crack resistance and bearing capacity of the pile. The second stirrup is located in the middle of the pile and connects with the first stirrup. This ensures the strength of the middle part of the pile while saving materials, optimizing the stress performance of the pile, and making the overall stress distribution of the pile more reasonable.

[0016] Optionally, the vertical ribs include multiple ones, which are arranged in a circular array. The casting cavity also includes multiple annular stirrups. The vertical ribs are fixedly connected to the inner side of the annular stirrups, and the multiple annular stirrups are spaced apart along the extension direction of the vertical ribs.

[0017] By adopting the above technical solution, multiple vertical reinforcement ring arrays are arranged to provide a uniform longitudinal stress structure for the casting cavity. The ring stirrups are fixedly connected to the inner side of the vertical reinforcements and are spaced apart along the extension direction of the vertical reinforcements, which provides lateral support and restraint for the vertical reinforcements, enhances the stability of the vertical reinforcements, prevents bending deformation of the vertical reinforcements during concrete pouring and stress, ensures that the vertical reinforcements can effectively transfer loads, and improves the overall structural strength of the casting cavity and pile body.

[0018] Optionally, at least two piles are provided, with the connecting portions of two adjacent piles abutting each other, and the convex edge of one pile engaging with the groove of the other pile.

[0019] By adopting the above technical solution, at least two piles are connected through the convex edge and groove of the connecting part, realizing the continuous arrangement of the support piles and forming a continuous support wall. This can more effectively block the soil and improve the overall support effect. The close connection between adjacent piles reduces the risk of leakage in the support structure and enhances the water-stopping performance and overall stability of the support structure.

[0020] Optionally, the connecting part between two adjacent piles is provided with external reinforcement bars on both sides. The external reinforcement bars are located in the cap beam, the external reinforcement bars are vertically arranged, and the two ends of the external reinforcement bars are provided with second hooks.

[0021] By adopting the above technical solution, the external reinforcement bars on both sides of the connection part connecting adjacent piles are located in the capping beam. The external reinforcement bars are set vertically and have second hooks at both ends. The external reinforcement bars can enhance the strength of the surrounding parts of the piles in the capping beam. The second hooks further increase the bond force between the external reinforcement bars and the capping beam concrete, making the concrete connection of the perimeter of the capping beam more solid, improving the compressive and shear resistance of the capping beam, and ensuring the integrity and reliability of the support structure.

[0022] In summary, this application includes at least one of the following beneficial effects: 1. The adjacent piles are spliced ​​by the cooperation of the convex edge and groove of the pile connection part. The adjacent piles are tightly connected to form a continuous support wall, which effectively blocks the soil and reduces the risk of leakage, improves the water-stopping performance and overall support effect of the entire support structure, and ensures the reliability of the foundation pit support project.

[0023] 2. The pile body is equipped with a ring array of steel bars and spiral stirrups. The spiral stirrups adopt a method with high density at both ends and reasonable connection in the middle. At the same time, the vertical bars are arranged in conjunction with the ring stirrups to provide uniform support in the longitudinal direction and effective restraint in the lateral direction. This strengthens the restraint at stress concentration points such as both ends of the pile body, optimizes the overall stress situation of the pile body, improves the shear resistance, torsion resistance, crack resistance and bearing capacity of the pile body, and ensures the strength and durability of the pile body.

[0024] 3. The steel cage is placed on top of the pile to provide internal support for the capping beam. The capping beam wraps around the steel cage and is equipped with external reinforcement bars with hooks at both ends. This enhances the connection between the capping beam and the pile, improves the capping beam's compressive and shear resistance, and also increases the bond strength between the capping beam and the surrounding concrete. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the pile in the embodiment of this application.

[0026] Figure 2 This is a top view of the pile connection in the embodiment of this application.

[0027] Figure 3 This is a cross-sectional view of a PCS support pile structure in an embodiment of this application.

[0028] Figure 4 This is a cross-sectional view of a PCS support pile structure in an embodiment of this application.

[0029] Figure 5 This is a top sectional view of the pile in the embodiment of this application.

[0030] Figure 6 This is a schematic diagram of the spiral stirrup structure in an embodiment of this application.

[0031] Figure 7 This is a top view of a PCS support pile structure connection in an embodiment of this application.

[0032] Figure 8 yes Figure 7 Sectional view at point AA.

[0033] Figure 9 This is a schematic diagram of a PCS support pile structure connection in an embodiment of this application.

[0034] Figure 10 This is a cross-sectional view of a PCS support pile structure connection in an embodiment of this application.

[0035] Explanation of reference numerals in the attached figures: 1. Pile body; 101. Casting cavity; 11. Vertical reinforcement; 111. First hook; 12. Connecting part; 121. Protruding edge; 122. Groove; 13. Spiral stirrup; 131. First stirrup; 132. Second stirrup; 14. Steel bar; 15. Circular stirrup; 2. Crown beam; 3. Reinforcing cage; 31. Longitudinal reinforcement; 32. Transverse reinforcement; 4. External reinforcement; 41. Second hook; 5. Joint board. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0037] This application discloses a PCS support pile structure, referring to... Figure 1 and 2 The system includes a pile body 1, with connecting portions 12 on opposite sides of the pile body 1. One connecting portion 12 has a protruding edge 121, and the other connecting portion 12 has a groove 122 that mates with the protruding edge 121. During construction, multiple pile bodies 1 are continuously arranged to form a retaining wall. The connecting portions 12 of two adjacent pile bodies 1 abut against each other, and the protruding edge 121 of the pile body 1 mates with the groove 122 of the adjacent pile body 1 for connection.

[0038] Reference Figure 3 and 4 A capping beam 2 is provided at the top of the pile body 1, extending along the arrangement direction of multiple pile bodies 1. The pile body 1 has an upward-opening casting cavity 101, which is used to pour concrete to make the pile body 1 solid. The capping beam 2 is made of concrete and closes the opening of the casting cavity 101. Multiple vertical reinforcing bars 11 are vertically arranged inside the casting cavity 101, extending from inside the casting cavity 101 to the capping beam 2 and connecting thereto. Specifically, the casting cavity 101 and the capping beam 2 are cast using C30 concrete.

[0039] Reference Figure 4 The top of the pile body 1 is provided with a steel cage 3, and the cap beam 2 is wrapped around the surface of the steel cage 3. The steel cage 3 includes multiple longitudinal bars 31 and transverse bars 32. The longitudinal bars 31 and transverse bars 32 are arranged vertically and connected to each other. The two ends of the longitudinal bars 31 are located away from the two connecting parts 12. The extension direction of the transverse bars 32 is parallel to the line connecting the two connecting parts 12. At the connection of the longitudinal bars 31 and transverse bars 32, the vertical bars 11 are connected to both the longitudinal bars 31 and transverse bars 32.

[0040] In a preferred embodiment, refer to Figure 4The upper end of the vertical reinforcement 11 has a first hook 111, and the inner bend of the first hook 111 is connected to the connection point of the longitudinal reinforcement 31 and the transverse reinforcement 32. Specifically, prestress is applied between the steel cage 3 and the pile body 1 before the cap beam 2 is poured. The prestress can offset part of the pressure on the pile body 1 and enhance the deformation resistance and compressive strength of the pile body 1.

[0041] In a preferred embodiment, refer to Figure 5 and 6 The pile body 1 contains spiral stirrups 13 and multiple steel bars 14. The steel bars 14 are arranged vertically and in a circular array, with the casting cavity 101 located between them. The spiral stirrups 13 spirally surround the steel bars 14, and the steel bars 14 are fixedly connected to the inner side of the spiral stirrups 13. Specifically, the steel bars 14 are prestressed concrete steel bars. Compared with the steel cage 3 made of conventional ordinary steel bars, the pile body 1 made of prestressed concrete steel bars can improve the overall mechanical properties, including increasing the tensile and shear strength of the pile body 1 and enhancing its bearing capacity. In a preferred embodiment, refer to Figure 6 The spiral stirrups 13 include a first stirrup 131 and a second stirrup 132. The second stirrup 132 is located in the middle of the pile body 1, and the first stirrup 131 is located at both ends of the pile body 1. The two ends of the second stirrup 132 are connected to the first stirrup 131. The binding density between the first stirrup 131 and the steel bar 14 is greater than that between the second stirrup 132 and the steel bar 14. The first stirrup 131, located at both ends of the pile body 1, has a higher binding density than the second stirrup 132. This provides stronger restraint to the more complex and stress-concentrated areas at both ends of the pile body 1, enhancing the crack resistance and bearing capacity at both ends of the pile body 1. The second stirrup 132, located in the middle of the pile body 1 and connected to the first stirrup 131, saves material while ensuring the strength of the middle part of the pile body 1, optimizes the stress performance of the pile body 1, and makes the overall stress of the pile body 1 more reasonable.

[0042] In a preferred embodiment, refer to Figure 3 Multiple vertical reinforcing bars 11 are arranged in a circular array within the casting cavity 101. Multiple annular stirrups 15 are arranged around the outer ring of each vertical reinforcing bar 11. The vertical reinforcing bars 11 are fixedly connected to the inner side of the stirrups, and the annular stirrups 15 are spaced apart along the extension direction of the vertical reinforcing bars 11. This circular array of vertical reinforcing bars 11 provides a uniform longitudinal stress structure for the casting cavity 101. The annular stirrups 15, fixedly connected to the inner side of the vertical reinforcing bars 11 and spaced apart along the extension direction of the vertical reinforcing bars 11, provide lateral support and constraint, enhancing the stability of the vertical reinforcing bars 11, preventing bending deformation during concrete pouring and stress application, ensuring the effective load transfer of the vertical reinforcing bars 11, and improving the overall structural strength of the casting cavity 101 and the pile body 1.

[0043] In a preferred embodiment, refer to Figure 7and 8 Both sides of the connection 12 connecting two adjacent piles 1 are provided with external reinforcement bars 4. The external reinforcement bars 4 are located in the capping beam 2 and are vertically installed. Both ends of the external reinforcement bars 4 are provided with second hooks. The external reinforcement bars 4 can enhance the strength of the periphery of the piles 1 in the capping beam 2. The second hooks further increase the bond force between the external reinforcement bars 4 and the concrete of the capping beam 2, making the concrete connection of the periphery of the capping beam 2 more solid, improving the compressive and shear resistance of the capping beam 2, and ensuring the integrity and reliability of the support structure.

[0044] In a preferred embodiment, refer to Figure 9 and 10 The capping beam 2 is divided into multiple segments along the arrangement direction of the pile body 1. A joint plate 5 is inserted between adjacent segments of the capping beam 2. Specifically, the joint plate 5 is a polyethylene closed-cell joint plate. At the joint of the capping beam 2, when the capping beam 2 expands or contracts due to temperature changes or undergoes relative displacement due to foundation settlement, the joint plate 5 can deform accordingly due to its elasticity and compressibility, filling the joint space. This not only does not hinder the normal expansion, contraction, or settlement of the capping beam 2, but also maintains a sealing effect on the joint, preventing external water, soil, and other impurities from entering the joint and avoiding erosion of the capping beam 2 structure, thus affecting its normal deformation function.

[0045] The above are all preferred embodiments of this application. These embodiments are merely explanations of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A PCS support pile structure, characterized in that, include: The pile body (1) has an upward-facing pouring cavity (101) for storing concrete. Vertical ribs (11) are vertically arranged inside the pouring cavity (101). Connecting parts (12) are provided on opposite sides of the pile body (1). One of the connecting parts (12) has a protruding edge (121), and the other connecting part (12) has a groove (122) that can cooperate with the protruding edge (121). The capping beam (2) is connected to the top of the pile body (1). The capping beam (2) closes the opening of the casting cavity (101). The vertical reinforcement (11) extends to the outside of the casting cavity (101) and is connected to the capping beam (2).

2. The PCS support pile structure according to claim 1, characterized in that: It also includes a steel cage (3), which is set on the top of the pile body (1), the vertical bar (11) is connected to the steel cage (3), and the cap beam (2) is wrapped around the surface of the steel cage (3).

3. The PCS support pile structure according to claim 2, characterized in that: The steel cage (3) includes longitudinal bars (31) and transverse bars (32), the longitudinal bars (31) and the transverse bars (32) are staggered, the two ends of the longitudinal bars (31) are set away from the connecting part (12), and the vertical bars (11) are connected to the transverse bars (32) and / or the longitudinal bars (31).

4. A PCS support pile structure according to claim 3, characterized in that: The upper end of the vertical rib (11) has a first hook (111), and the inner side of the first hook (111) is fixedly connected to the horizontal rib (32) and / or the longitudinal rib (31).

5. A PCS support pile structure according to claim 1, characterized in that: The pile body (1) is provided with a spiral stirrup (13) and a plurality of steel bars (14). The plurality of steel bars (14) are arranged vertically and in a circular array. The spiral stirrup (13) is spirally arranged around the plurality of steel bars (14). The steel bars (14) are fixedly connected to the inner side of the spiral stirrup (13).

6. A PCS support pile structure according to claim 5, characterized in that: The spiral stirrup (13) includes a first stirrup (131) and a second stirrup (132). The second stirrup (132) is located in the middle of the pile body (1), and the first stirrup (131) is located at both ends of the pile body (1). The two ends of the second stirrup (132) are connected to the first stirrup (131). The binding density of the first stirrup (131) is greater than that of the second stirrup (132).

7. A PCS support pile structure according to claim 1, characterized in that: The vertical ribs (11) include a plurality of them, and the plurality of vertical ribs (11) are arranged in a circular array. The casting cavity (101) also includes a plurality of annular stirrups (15). The vertical ribs (11) are fixedly connected to the inner side of the annular stirrups (15), and the plurality of annular stirrups (15) are spaced apart along the extension direction of the vertical ribs (11).

8. A PCS support pile structure according to claim 1, characterized in that: At least two pile bodies (1) are provided, and the connecting parts (12) of two adjacent pile bodies (1) abut against each other, and the protruding edge (121) of one pile body (1) is connected to the groove (122) of the other pile body (1).

9. A PCS support pile structure according to claim 1, characterized in that: The connecting part (12) connecting two adjacent piles (1) is provided with external reinforcement (4) on both sides. The external reinforcement (4) is located in the cap beam (2). The external reinforcement (4) is set vertically. The two ends of the external reinforcement (4) are provided with second hooks (41).

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