Anchor disc for vertical uplift bearing capacity of single concrete pile

Abstract

The utility model relates to the technical field of foundation structures, in particular to a concrete single pile vertical uplift bearing capacity anchor disc which comprises a pile body, an uplift assembly is arranged on the pile body, the uplift assembly comprises a spiral anchor disc body, the side wall of the anchor disc body is fixedly connected with a plurality of anti-skid sawteeth arranged at intervals in the axial direction of the anchor disc body, and the side wall of the anchor disc body is fixedly connected with the anti-skid sawteeth. Through cooperative arrangement of the anchor disc body, the anti-skid sawteeth, the connecting holes and other structures, during use, the anchor disc body is screwed into the pile body from the top end of the pile body, the anti-skid sawteeth are embedded into the inner wall of the pile body, the anchoring force of the anchor disc body in the pile body is improved, the anchor disc body is fixed into the pile body, and the anti-skid sawteeth are embedded into the inner wall of the pile body; and then the anchor plate body is connected with an external device through the connecting hole to pull the anchor plate body and test the anti-pulling effect of the pile body, so that the problems that the installation process of an anti-pulling device is complicated, professional construction skills and equipment are needed, the working difficulty of staff is improved, and the working efficiency is reduced are solved as much as possible.

Description

Technical Field

[0001] The present application relates to the technical field of foundation structure, and in particular to an anchor plate for the vertical pull-out bearing capacity of a concrete single pile. Background Art

[0002] A large number of projects are subject to pull-out or buoyancy resistance, which makes pull-out piles widely used, such as urban infrastructure projects such as underground garages, underground pipe galleries and sunken squares; pile foundations of coastal / river wharf projects and large dock bottom plates, anchor pile foundations of suspension bridges and cable-stayed bridges, anchor pile reaction foundations and other structures. At present, cast-in-place reinforced concrete pull-out piles (including expanded bottom pull-out piles) and anchor piles or beams are often used in the design of pull-out structures. Reinforced concrete pull-out piles have a certain pull-out resistance and have high compressive and bearing capacity, but the friction between the pile wall and the rock and soil is relatively small, and the pull-out resistance is limited. In particular, when the pile body of the reinforced concrete pull-out pile is located below the lower water level, the buoyancy it receives will significantly increase the pull-out load. Large anchor structures provide pull-out resistance through the tensile strength of the anchoring section, which can provide great pull-out resistance, but due to its high requirements for the stratum (to ensure that the anchoring section can provide good tensile strength) and high engineering costs, they are generally used in large pull-out projects (such as bridges, etc.).

[0003] The installation process of the existing anti-pullout device for concrete piles is complicated and requires professional construction skills and equipment, which increases the difficulty of employees' work and reduces work efficiency. Utility Model Content

[0004] The utility model aims to solve or at least alleviate the problem that the installation process of the existing anti-pullout device of concrete piles is complicated, requires professional construction skills and equipment, increases the difficulty of employees' work, and leads to reduced work efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An anchor plate for vertical pull-out bearing capacity of a concrete single pile comprises a pile body, on which a pull-out assembly is arranged, the pull-out assembly comprises a spiral anchor plate body, a side wall of the anchor plate body is fixedly connected with a plurality of anti-slip serrations arranged in a spiral along its axial direction, a connection hole is opened at the top of the anchor plate body, and a reinforcement assembly is arranged on the anchor plate body.

[0007] By adopting the above technical solution, when in use, the anchor plate body is screwed into the pile body from the top of the pile body, and the anti-slip serrations are embedded into the inner wall of the pile body to improve the anchoring force of the anchor plate body in the pile body. The anchor plate body is fixed in the pile body, and then connected to the external device through the connecting hole to pull the anchor plate body to test the pull-out resistance of the pile body. This avoids the problem that the installation process of the pull-out resistance device is complicated, requires professional construction skills and equipment, increases the difficulty of employees' work, and reduces work efficiency.

[0008] Optionally, the reinforcement assembly includes a positioning plate fixedly connected to the top of the anchor plate body, a first slide groove and a second slide groove are respectively provided on both sides of the upper surface of the positioning plate, two first T-shaped sliding blocks are slidably arranged in parallel in the first slide groove, two second T-shaped sliding blocks are slidably connected in parallel in the second slide groove, a pressure plate is fixedly connected between the first T-shaped sliding blocks and the second T-shaped sliding blocks, and a plurality of fixing nails are fixedly connected to the opposite sides of the two pressure plates.

[0009] By adopting the above technical solution, after the anchor plate body is screwed into the pile body, the two pressure plates are located on both sides of the pile body. By hammering the two pressure plates, the two pressure plates are brought closer to each other, and the fixing nails are embedded in the pile body, which can improve the stability of the connection between the anchor plate body and the pile body.

[0010] Optionally, a threaded rod is provided between the two first T-shaped sliders and the two second T-shaped sliders, the first T-shaped slider and the second T-shaped slider are respectively sleeved on the threaded rod, and nuts are threadedly connected at both ends of the threaded rod.

[0011] By adopting the above technical solution, the nut is rotated to abut against the pressure plate, thereby preventing the first T-shaped slider and the second T-shaped slider from sliding during use, causing the fixing nail to be disconnected from the pile body.

[0012] Optionally, four ends of the lower surface of the positioning plate are fixedly connected to fixing plates, and two ends of the threaded rod are respectively fixedly connected to the fixing plates.

[0013] By adopting the above technical solution, the threaded rod can be fixed by the fixing plate to prevent the threaded rod from rotating when the nut is turned, thereby increasing the difficulty of operation.

[0014] Optionally, a limiting rod is fixedly connected to the first sliding groove and the second sliding groove, and the first T-shaped sliding block and the second T-shaped sliding block are respectively sleeved on the limiting rod.

[0015] By adopting the above technical solution, the sliding stability of the first T-shaped sliding block and the second T-shaped sliding block can be improved through the limiting rod.

[0016] Optionally, a plurality of anchor plate bodies are provided, and the diameters of the anchor plate bodies are different.

[0017] By adopting the above technical solution, a suitable anchor plate body can be selected according to the diameter of the pile body, and it is suitable for piles with different diameters.

[0018] Optionally, a through hole is provided on the upper surface of the positioning plate, and the through hole is matched with the connecting hole.

[0019] By adopting the above technical solution, the through hole is used to prevent the positioning plate from blocking the connection hole.

[0020] In summary, the beneficial effects of this application are as follows:

[0021] 1. The present application adopts the coordinated arrangement of the structures such as the anchor plate body, the anti-skid serrations and the connection holes. When in use, the anchor plate body is screwed into the pile body from the top of the pile body, and the anti-skid serrations are embedded into the inner wall of the pile body to improve the anchoring force of the anchor plate body in the pile body. The anchor plate body is fixed in the pile body, and then connected to the external device through the connection hole to pull the anchor plate body to test the pull-out resistance of the pile body, thereby avoiding the problem that the installation process of the pull-out resistance device is complicated, professional construction skills and equipment are required, the work difficulty of employees is increased, and the work efficiency is reduced;

[0022] 2. After the anchor plate body is screwed into the pile body, the two pressure plates are located on both sides of the pile body. By hammering the two pressure plates, the two pressure plates are brought closer to each other so that the fixing nails are embedded in the pile body, which can improve the stability of the connection between the anchor plate body and the pile body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the anti-pullout component of the utility model;

[0025] Figure 3 For the utility model Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0026] Explanation of the reference numerals: 1. pile body; 2. anchor plate body; 3. anti-slip serrations; 4. connecting hole; 5. positioning plate; 6. first slide groove; 7. second slide groove; 8. first T-shaped slider; 9. second T-shaped slider; 10. pressure plate; 11. fixing nail; 12. threaded rod; 13. nut; 14. fixing plate; 15. limiting rod; 16. through hole. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3 This application is described in further detail.

[0028] See also Figure 1-3, an anchor plate for vertical pull-out bearing capacity of a concrete single pile, comprising a pile body 1, on which is provided an anti-pull-out component for connecting and fixing with the pile body 1, the anti-pull-out component comprising an anchor plate body 2, anti-skid serrations 3 and a connecting hole 4, the anchor plate body 2 is spirally shaped and adapted to the inner wall of the pile body 1, and can be screwed into the pile body 1 to increase the contact area and friction with the pile body 1, a plurality of anti-skid serrations 3 are provided, which are spirally fixed on the side wall of the anchor plate body 2 along the axial direction of the anchor plate body 2, and the anti-skid serrations 3 can be embedded in the inner wall of the pile body 1 when the anchor plate body 2 is screwed in, so as to prevent the anchor plate body 2 from slipping off the pile body 1 when subjected to an upward pull-out force, and the connecting hole 4 is provided at the top of the anchor plate body 2 for connecting with an external device to test the anti-pull-out effect of the pile body 1.

[0029] When in use, the anchor plate body 2 is screwed into the pile body 1 from the top of the pile body 1, and the anti-slip serrations 3 are embedded into the inner wall of the pile body 1 to improve the anchoring force of the anchor plate body 2 in the pile body 1. The anchor plate body 2 is fixed in the pile body 1, and then connected to an external device through the connecting hole 4 to pull the anchor plate body 2 to test the pull-out resistance of the pile body 1. This avoids the problem that the installation process of the pull-out resistance device is complicated, requires professional construction skills and equipment, increases the difficulty of employees' work, and reduces work efficiency.

[0030] Reference Figure 1 , Figure 2 and Figure 3 The reinforcement component includes a positioning plate 5 fixedly connected to the top of the anchor plate body 2, and a first slide groove 6 and a second slide groove 7 are respectively opened on both sides of the upper surface of the positioning plate 5. Two first T-shaped sliding blocks 8 arranged in parallel are slidably arranged in the first slide groove 6, and two second T-shaped sliding blocks 9 arranged in parallel are slidably connected in the second slide groove 7. A pressure plate 10 is fixedly connected between the first T-shaped sliding block 8 and the second T-shaped sliding block 9. A plurality of fixing nails 11 are fixedly connected to the opposite sides of the two pressure plates 10. After the anchor plate body 2 is screwed into the pile body 1, the two pressure plates 10 are located on both sides of the pile body 1. By hammering the two pressure plates 10, the two pressure plates 10 are brought close to each other, and the fixing nails 11 are embedded in the pile body 1, which can improve the stability of the connection between the anchor plate body 2 and the pile body 1.

[0031] Reference Figure 2 A threaded rod 12 is provided between the two first T-shaped sliders 8 and the two second T-shaped sliders 9. The first T-shaped slider 8 and the second T-shaped slider 9 are respectively sleeved on the threaded rod 12. Nuts 13 are threadedly connected to both ends of the threaded rod 12. By rotating the nut 13 and abutting the nut 13 against the pressure plate 10, the first T-shaped slider 8 and the second T-shaped slider 9 can be prevented from sliding during use, causing the fixing nail 11 to be disconnected from the pile body 1.

[0032] Reference Figure 2The four ends of the lower surface of the positioning plate 5 are fixedly connected with a fixing plate 14, and the two ends of the threaded rod 12 are respectively fixedly connected to the fixing plate 14. The threaded rod 12 can be fixed by the fixing plate 14 to prevent the threaded rod 12 from rotating with the rotation of the nut 13, which increases the difficulty of operation.

[0033] Reference Figure 2 A limiting rod 15 is fixedly connected to the first slide groove 6 and the second slide groove 7, and the first T-shaped slider 8 and the second T-shaped slider 9 are respectively mounted on the limiting rod 15. The limiting rod 15 can improve the sliding stability of the first T-shaped slider 8 and the second T-shaped slider 9.

[0034] Reference Figure 1 There are multiple anchor plate bodies 2 with different diameters. A suitable anchor plate body 2 can be selected according to the diameter of the pile body 1, which is suitable for pile bodies 1 with different diameters.

[0035] Reference Figure 2 A through hole 16 is formed on the upper surface of the positioning plate 5 , and the through hole 16 matches the connecting hole 4 , so that the positioning plate 5 is prevented from blocking the connecting hole 4 through the through hole 16 .

[0036] The implementation principle of the present application is as follows: when in use, the anchor plate body 2 is screwed into the pile body 1 from the top of the pile body 1, and the anti-slip serrations 3 are embedded into the inner wall of the pile body 1 to improve the anchoring force of the anchor plate body 2 in the pile body 1, and the anchor plate body 2 is fixed in the pile body 1, and then the two pressure plates 10 are brought close to the pile body 1, and the fixing nails 11 are embedded into the pile body 1 by hammering the pressure plates 10 to improve the stability of the connection between the anchor plate body 2 and the pile body 1, and then the anchor plate body 2 is connected to the external device through the connecting hole 4 to pull the anchor plate body 2 to test the pull-out resistance of the pile body 1, thereby avoiding the complicated installation process of the pull-out resistance device as much as possible, requiring professional construction skills and equipment, increasing the difficulty of employees' work, and reducing work efficiency.

[0037] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An anchor plate for vertical pull-out bearing capacity of a concrete single pile, comprising a pile body (1), wherein the pile body (1) is provided with a pull-out assembly, characterized in that: The anti-pullout component comprises a spiral anchor plate body (2), a plurality of anti-slip serrations (3) arranged spirally along the axial direction of the anchor plate body (2) are fixedly connected to the side wall of the anchor plate body (2), a connection hole (4) is provided at the top end of the anchor plate body (2), and a reinforcement component is provided on the anchor plate body (2).

2. The anchor plate for vertical pull-out bearing capacity of a concrete single pile according to claim 1, characterized in that: The reinforcement assembly comprises a positioning plate (5) fixedly connected to the top of the anchor plate body (2), a first slide groove (6) and a second slide groove (7) are respectively provided on both sides of the upper surface of the positioning plate (5), two first T-shaped sliding blocks (8) arranged in parallel are slidably arranged in the first slide groove (6), two second T-shaped sliding blocks (9) arranged in parallel are slidably connected in the second slide groove (7), a pressing plate (10) is fixedly connected between the first T-shaped sliding blocks (8) and the second T-shaped sliding blocks (9), and a plurality of fixing nails (11) are fixedly connected to opposite sides of the two pressing plates (10).

3. The anchor plate for vertical pull-out bearing capacity of a concrete single pile according to claim 2, characterized in that: A threaded rod (12) is provided between the two first T-shaped sliders (8) and the two second T-shaped sliders (9); the first T-shaped slider (8) and the second T-shaped slider (9) are respectively sleeved on the threaded rod (12); and nuts (13) are threadedly connected at both ends of the threaded rod (12).

4. The anchor plate for vertical pull-out bearing capacity of a concrete single pile according to claim 3, characterized in that: The four ends of the lower surface of the positioning plate (5) are fixedly connected to a fixing plate (14), and the two ends of the threaded rod (12) are respectively fixedly connected to the fixing plate (14).

5. The anchor plate for vertical pull-out bearing capacity of a concrete single pile according to claim 2, characterized in that: A limiting rod (15) is fixedly connected to the first sliding groove (6) and the second sliding groove (7), and the first T-shaped sliding block (8) and the second T-shaped sliding block (9) are respectively sleeved on the limiting rod (15).

6. The anchor plate for vertical pull-out bearing capacity of a concrete single pile according to claim 1, characterized in that: The anchor disc bodies (2) are provided in plurality and have different diameters.

7. The anchor plate for vertical pull-out bearing capacity of a concrete single pile according to claim 2, characterized in that: A through hole (16) is provided on the upper surface of the positioning plate (5), and the through hole (16) is adapted to fit the connecting hole (4).

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