A building pile foundation reinforcing structure

Abstract

This invention relates to the field of foundation reinforcement device technology, specifically to a building pile foundation reinforcement structure, comprising a steel pipe pile body and auxiliary components. The steel pipe pile body has several reinforcement openings on its circumferential surface, with a reinforcement plate rotatably connected to the inner side of each opening. A reinforcing steel frame is fitted around the reinforcement plate. The auxiliary components include an auxiliary rod and several auxiliary wings connected to the lower end of the auxiliary rod. The lower part of each auxiliary wing is inclined towards the axis of the auxiliary rod, and an auxiliary roller is connected to the upper part of the auxiliary wing. This invention can form several reinforced ears of reinforced concrete structure on the outside of the steel pipe pile body, thereby improving the connection between the steel pipe pile body and the surrounding foundation, greatly improving the pull-out resistance of the steel pipe pile body, and strengthening the reinforcement effect between the steel pipe pile body and the foundation.

Description

Technical Field

[0001] This invention relates to the field of foundation reinforcement device technology, specifically to a building pile foundation reinforcement structure. Background Technology

[0002] In the construction of building foundations, steel pipe piles are often chosen as the main vertical load-bearing support components. Steel pipe pile construction is convenient and quick, with a shorter construction period, lower cost, fewer construction procedures, and lower environmental pollution compared to bored pile construction. Furthermore, as a supporting component of the foundation, steel pipe piles also have a high bearing capacity.

[0003] After steel pipe piles are inserted into the soil, they are usually fixed by wrapping them with soil. Friction is used to limit the steel pipe piles from leaving the soil. However, this method has limited pull-out resistance and poor stability, resulting in an unstable foundation for the steel pipe piles. The foundation is prone to shaking or even coming off under external forces.

[0004] A steel pipe pile foundation reinforcement structure, disclosed in Chinese patent application number CN2020108763209, includes an adjustment plate installed on the outside of the steel pipe pile body. When the adjustment plate moves downward, it drives the anti-pull rods to swing out of the receiving groove via a control rod. Multiple anti-pull rods form anti-pull barbs, thereby improving the anti-pull effect of the steel pipe pile and thus enhancing its stability.

[0005] However, in actual use, the contact area between the tension rod and the surrounding soil is small, and the tension rod and the steel pipe pile body are connected in a V-shape, resulting in a small projected area. Furthermore, the tension rod and the adjusting rod are connected in a sliding manner, and the connection is prone to breakage when the surrounding foundation is compacted.

[0006] For example, in a steel pipe pile foundation reinforcement structure described in Chinese patent application number CN2023106118735, a limiting plate is connected to the outside of the steel pipe pile, which can greatly increase the connection effect between the steel pipe pile and the surrounding foundation. However, in this application, the limiting plate and the main body of the steel pipe pile are connected by a tension rope, which limits the pull-out resistance.

[0007] Design a building pile foundation reinforcement structure to solve the problem of poor pull-out resistance of existing steel pipe pile pull-out components, improve the friction between steel pipe piles and the surrounding foundation, and ensure the reinforcement effect of steel pipe piles. Summary of the Invention

[0008] To address the aforementioned problems, this invention provides a building pile foundation reinforcement structure.

[0009] The technical solution adopted by the present invention to solve its technical problem is: a building pile foundation reinforcement structure, including a steel pipe pile body and auxiliary components, wherein a plurality of reinforcement openings are provided on the circumferential surface of the steel pipe pile body, a reinforcement plate is rotatably connected to the inner side of the reinforcement opening, and a steel reinforcement frame is sleeved on the outside of the reinforcement plate;

[0010] The reinforcing plate is hollow, and an arc-shaped opening is provided at the bottom of the reinforcing plate. A limiting strip is provided outside the arc-shaped opening. The side of the limiting strip away from the axis of the reinforcing plate protrudes outward to form a cutting edge. A limiting block is connected to the end of the steel bar frame away from the limiting strip. The length of the limiting block is greater than the thickness of the limiting strip.

[0011] The auxiliary component includes an auxiliary rod and several auxiliary wings connected to the lower end of the auxiliary rod. The lower part of the auxiliary wings is inclined toward the axis of the auxiliary rod, and the upper part of the auxiliary wings is connected to an auxiliary roller.

[0012] As an optimization, the reinforcement port is set vertically, the height of the reinforcement port is not less than the diameter of the reinforcement plate, and the axis of the reinforcement plate is set horizontally;

[0013] Several reinforcement openings are evenly arranged along the length of the main body of the steel pipe pile. The number of reinforcement openings in the same horizontal plane of the main body of the steel pipe pile is not less than 3. The reinforcement openings in the same horizontal plane are arranged in a circular array. Two connecting seats are provided on the inner side of the reinforcement opening. A connecting shaft is fixed at the point where the circular surface of the reinforcement plate is adjacent to the reinforcement opening. The connecting shaft is connected to the connecting seat in a damped rotational connection.

[0014] As an optimization, the steel reinforcement frame includes two opposing mesh panels, the tops of the two mesh panels are fixedly connected, a limiting block is fixed to the upper part of the mesh panels, the length direction of the limiting block is parallel to the circumferential direction of the reinforcing plate, and the thickness of the mesh panels is less than the thickness of the limiting strip.

[0015] As an optimization, the width of the arc-shaped opening is equal to the thickness of the reinforcing plate, the central angle of the arc-shaped opening is 180°, and the end of the arc-shaped opening adjacent to the reinforcing opening is not lower than the horizontal diameter of the reinforcing plate.

[0016] As an optimization, the length of the auxiliary rod is not less than the length of the main body of the steel pipe pile, and several auxiliary wings are arranged in a circular array;

[0017] The auxiliary wing is vertically positioned at the upper outer end, and the auxiliary roller is connected to the vertical section of the auxiliary wing. The axis of the auxiliary roller is parallel to the axis of the reinforcing disk.

[0018] As an optimization, the diameter of the reinforcing plate is smaller than the radius of the main body of the steel pipe pile.

[0019] As an optimization, the steps for using the main body and auxiliary components of the steel pipe pile are as follows:

[0020] S1. Place the main body of the steel pipe pile into the pre-embedded hole in the foundation, with the outer side of the main body of the steel pipe pile fitting against the inner side of the pre-embedded hole;

[0021] S2. Insert the auxiliary components into the lower part of the inner side of the steel pipe pile body, so that the auxiliary wings push the reinforcing disc to rotate from bottom to top;

[0022] S3. When the reinforcing plate rotates, the steel reinforcement frame remains on the outside of the main body of the steel pipe pile, and the reinforcing plate continues to rotate back to the inside of the main body of the steel pipe pile;

[0023] S4. Concrete is poured through the top opening of the steel pipe pile body, forming a concrete pile foundation inside the steel pipe pile body and outside the reinforcement opening. A reinforcing ear is formed outside the reinforcement opening, and the reinforcing ear is a reinforced concrete foundation.

[0024] This proposed method for reinforcing building pile foundations has the following advantages:

[0025] This application involves installing multiple reinforcing discs inside the main body of the steel pipe pile. The reinforcing discs are pushed outwards through reinforcing openings using auxiliary components. The reinforcing discs cut the exterior of the main body of the steel pipe pile into a pre-cut disc shape, with the reinforcing steel frame placed inside the pre-cut groove. Concrete is then poured into the interior of the main body of the steel pipe pile, allowing the concrete to enter the pre-cut groove through the reinforcing openings. This creates several reinforcing ears of reinforced concrete structure on the exterior of the main body of the steel pipe pile, improving the connection between the main body of the steel pipe pile and the surrounding foundation, significantly enhancing the pull-out resistance of the main body of the steel pipe pile, and strengthening the reinforcement effect between the main body of the steel pipe pile and the foundation. Attached Figure Description

[0026] Appendix Figure 1 This is an isometric view of the present invention.

[0027] Appendix Figure 2 This is a schematic diagram of the main view of the present invention.

[0028] Appendix Figure 3 For the present invention Figure 2 A schematic diagram of the AA cross-section structure.

[0029] Appendix Figure 4 This is a partial structural schematic diagram of the auxiliary component of the present invention.

[0030] Appendix Figure 5 This is a schematic diagram of the connection structure of the reinforcing disk of the present invention.

[0031] Appendix Figure 6 This is an axial view of the connection structure between the reinforcing plate and the steel frame of the present invention.

[0032] Appendix Figure 7 This is a bottom axial view of the connection structure between the reinforcing plate and the steel frame of the present invention.

[0033] Appendix Figure 8This is a schematic diagram of the steel reinforcement frame of the present invention from an axial side.

[0034] Appendix Figure 9 This is a schematic diagram of the axial side of the reinforced disk of the present invention.

[0035] Appendix Figure 10 This is a front view schematic diagram of the connection structure between the reinforcing plate and the steel frame of the present invention.

[0036] Appendix Figure 11 For the present invention Figure 10 A schematic diagram of the BB cross-section structure.

[0037] Appendix Figure 12 This is a schematic diagram showing the usage status of the reinforcing plate and steel bar frame of the present invention.

[0038] Appendix Figure 13 For the present invention Figure 12 A magnified structural diagram of part A.

[0039] Among them, 1. steel pipe pile body, 2. reinforcement opening, 3. reinforcement plate, 4. steel bar frame, 5. arc-shaped opening, 6. limiting strip, 7. limiting block, 8. auxiliary wing, 9. auxiliary rod, 10. auxiliary roller, 11. connecting seat, 12. connecting shaft. Detailed Implementation

[0040] like Figure 3 and Figure 6 As shown, a building pile foundation reinforcement structure includes a steel pipe pile body 1 and auxiliary components. The circumferential surface of the steel pipe pile body 1 is provided with a plurality of reinforcement openings 2. A reinforcement plate 3 is rotatably connected to the inner side of the reinforcement openings 2. A steel reinforcement frame 4 is sleeved on the outside of the reinforcement plate 3.

[0041] The reinforcing plate 3 is hollow, and an arc-shaped opening 5 is provided at the bottom of the reinforcing plate 3. A limiting strip 6 is provided outside the arc-shaped opening 5. The side of the limiting strip 6 away from the axis of the reinforcing plate 3 protrudes outward to form a cutting edge. The end of the steel bar frame 4 away from the limiting strip 6 is connected to a limiting block 7. The length of the limiting block 7 is greater than the thickness of the limiting strip 6.

[0042] The auxiliary component includes an auxiliary rod 9 and a plurality of auxiliary wings 8 connected to the lower end of the auxiliary rod 9. The lower part of the auxiliary wings 8 is inclined toward the axis of the auxiliary rod 9, and the upper part of the auxiliary wings 8 is connected to an auxiliary roller 10.

[0043] An embedded hole is made in the foundation, and the main body 1 of the steel pipe pile is placed in the embedded hole. The diameter of the auxiliary rod 9 is preferably designed for easy gripping and operation by workers. When the auxiliary rod 9 is coaxially inserted into the interior of the main body 1 of the steel pipe pile, it pushes the reinforcing plate 3 to rotate through the auxiliary wing 8.

[0044] When the reinforcing plate 3 is pushed outward through the reinforcing opening 2, the cutting blade can cut the soil outside the reinforcing opening 2 and allow the cut soil to enter the interior of the reinforcing plate 3, so that a pre-groove is formed on the outside of the reinforcing opening 2, and the steel frame 4 enters the pre-groove and stays there.

[0045] like Figure 3 and Figure 5 As shown, the reinforcement port 2 is vertically arranged, the height of the reinforcement port 2 is not less than the diameter of the reinforcement plate 3, and the axis of the reinforcement plate 3 is horizontally arranged;

[0046] Several reinforcement ports 2 are evenly arranged along the length of the steel pipe pile body 1. The number of reinforcement ports 2 in the same horizontal plane of the steel pipe pile body 1 is not less than 3. The reinforcement ports 2 in the same horizontal plane are arranged in a circular array. Two connecting seats 11 are provided on the inner side of the reinforcement port 2. A connecting shaft 12 is fixed at the point where the circular surface of the reinforcement plate 3 is adjacent to the reinforcement port 2. The connecting shaft 12 is connected to the connecting seat 11 in a damped rotational connection.

[0047] There are no fewer than 3 sets of reinforcement openings 2 along the length of the main body 1 of the steel pipe pile, and each set of reinforcement openings 2 has no fewer than 3 openings. The reinforcement openings 2 are used to accommodate the reinforcement plate 3 and the steel reinforcement frame 4, and also to accommodate the concrete grouting, so that the concrete grouting in the pre-grooved groove and the concrete grouting in the main body 1 of the steel pipe pile are integrally formed, thereby improving the pull-out resistance of the main body 1 of the steel pipe pile.

[0048] like Figure 6 As shown, the steel reinforcement frame 4 includes two mesh pieces arranged opposite each other, with the tops of the two mesh pieces fixedly connected. A limiting block 7 is fixed to the upper part of the mesh pieces, and the length direction of the limiting block 7 is parallel to the circumferential direction of the reinforcing plate 3. The thickness of the mesh pieces is less than the thickness of the limiting strip 6.

[0049] The steel reinforcement frame 4 is in the shape of a fine-mesh grid, and the area of ​​the mesh is greater than 2 / 3 of the area of ​​the circular surface of the reinforcing plate 3.

[0050] like Figure 6 and Figure 7 The width of the arc-shaped opening 5 is equal to the thickness of the reinforcing plate 3, the central angle of the arc-shaped opening 5 is 180°, and the end of the arc-shaped opening 5 adjacent to the reinforcing port 2 is not lower than the horizontal diameter of the reinforcing plate 3.

[0051] The inner edge of the arc-shaped opening 5 is integrally formed with the inner wall of the reinforcing plate 3.

[0052] like Figure 3 As shown, the length of the auxiliary rod 9 is not less than the length of the main body 1 of the steel pipe pile, and several auxiliary wings 8 are arranged in a circular array;

[0053] The auxiliary wing 8 is vertically positioned at the upper outer end, and the auxiliary roller 10 is connected to the vertical section of the auxiliary wing 8. The axial direction of the auxiliary roller 10 is parallel to the axial direction of the reinforcing disk 3.

[0054] The outer surface of the auxiliary wing 8 should be made of non-slip, wear-resistant material and should not be damaged by the cutting edge.

[0055] like Figure 3 As shown, the diameter of the reinforcing plate 3 is smaller than the radius of the steel pipe pile body 1.

[0056] How to use:

[0057] When the device is used, the main body 1 of the steel pipe pile is first placed into the pre-embedded hole in the foundation, and the outer side of the main body 1 of the steel pipe pile is in contact with the inner side of the pre-embedded hole.

[0058] The auxiliary components are inserted into the lower part of the inner side of the steel pipe pile body 1, so that the auxiliary wings 8 push the reinforcing plate 3 to rotate from bottom to top;

[0059] When the reinforcing plate 3 rotates, the steel reinforcement frame 4 remains on the outside of the steel pipe pile body 1, and the reinforcing plate 3 continues to rotate back to the inside of the steel pipe pile body 1;

[0060] Concrete is poured through the top opening of the steel pipe pile body 1, forming a concrete pile foundation inside the steel pipe pile body 1 and outside the reinforcement opening 2. The concrete pile foundation outside the reinforcement opening 2 is a reinforced concrete foundation.

[0061] The specific steps for the auxiliary components to drive the reinforcement disk 3 to rotate are as follows:

[0062] When the auxiliary wing 8 pushes the reinforcing disk 3 to rotate, the reinforcing disk 3 rotates outward through the reinforcing opening 2, and cuts the foundation outside the reinforcing opening 2 through the cutting blade. The cut foundation soil remains inside the reinforcing disk 3, forming a pre-groove on the outside of the reinforcing opening 2.

[0063] When the steel reinforcement frame 4 enters the pre-cut groove, because the length of the limiting block 7 is less than the width of the pre-cut groove, the steel reinforcement frame 4 stays inside the pre-cut groove and no longer rotates.

[0064] The auxiliary wing 8 continues to push the reinforcing plate 3, causing the reinforcing plate 3 to rotate back into the steel pipe pile body 1. After the rotation is completed, the auxiliary component is taken out upwards.

[0065] Concrete is poured into the interior of the steel pipe pile body 1. The concrete enters the pre-grooved groove through the reinforcement port 2 to form a reinforcing ear. The reinforcing ear is a reinforced concrete base and is integrally formed with the concrete base inside the steel pipe pile body 1.

[0066] The reinforced concrete foundation has a certain thickness and strong mechanical properties, which effectively improves the pull-out resistance of the main body 1 of the steel pipe pile.

[0067] The above-described specific embodiments are merely specific examples of the present invention. The patent protection scope of the present invention includes, but is not limited to, the product form and style of the above-described specific embodiments. Any building pile foundation reinforcement structure that conforms to the claims of the present invention and any appropriate changes or modifications made to it by those skilled in the art should fall within the patent protection scope of the present invention.

Claims

1. A building pile foundation reinforcement structure, comprising a steel pipe pile main body (1) and auxiliary components, characterized in that: The steel pipe pile body (1) has several reinforcing openings (2) on its circumferential surface. A reinforcing plate (3) is rotatably connected to the inner side of the reinforcing opening (2). A steel reinforcement frame (4) is sleeved on the outside of the reinforcing plate (3). The reinforcing plate (3) is hollow, and an arc-shaped opening (5) is provided at the bottom of the reinforcing plate (3). A limiting strip (6) is provided outside the arc-shaped opening (5). The side of the limiting strip (6) away from the axis of the reinforcing plate (3) protrudes outward to form a cutting edge. The end of the steel bar frame (4) away from the limiting strip (6) is connected to a limiting block (7). The length of the limiting block (7) is greater than the thickness of the limiting strip (6). The auxiliary component includes an auxiliary rod (9) and a plurality of auxiliary wings (8) connected to the lower end of the auxiliary rod (9). The lower part of the auxiliary wings (8) is inclined toward the axis of the auxiliary rod (9), and the upper part of the auxiliary wings (8) is connected to an auxiliary roller (10). The reinforcement port (2) is set vertically, the height of the reinforcement port (2) is not less than the diameter of the reinforcement plate (3), and the axis of the reinforcement plate (3) is set horizontally; Several reinforcement ports (2) are evenly arranged along the length of the steel pipe pile body (1). The number of reinforcement ports (2) in the same horizontal plane of the steel pipe pile body (1) is not less than 3. The reinforcement ports (2) in the same horizontal plane are arranged in a circular array. Two connecting seats (11) are provided on the inner side of the reinforcement port (2). A connecting shaft (12) is fixed on the circular surface of the reinforcement plate (3) adjacent to the reinforcement port (2). The connecting shaft (12) and the connecting seat (11) are connected by damping rotation. The steel reinforcement frame (4) includes two mesh pieces arranged opposite each other, the tops of the two mesh pieces are fixedly connected, and the limiting block (7) is fixed to the upper part of the mesh piece. The length direction of the limiting block (7) is parallel to the circumferential direction of the reinforcing plate (3). The thickness of the mesh piece is less than the thickness of the limiting strip (6). The steps for using the main body (1) and auxiliary components of the steel pipe pile are as follows: S1. Place the main body of the steel pipe pile into the pre-embedded hole in the foundation, with the outer side of the main body of the steel pipe pile fitting against the inner side of the pre-embedded hole; S2. Insert the auxiliary components into the lower part of the inner side of the steel pipe pile body (1), so that the auxiliary wings (8) push the reinforcing plate (3) to rotate from bottom to top; S3. When the reinforcing plate (3) rotates, the steel reinforcement frame (4) stays on the outside of the steel pipe pile body (1), and the reinforcing plate (3) continues to rotate back to the inside of the steel pipe pile body (1); S4. Concrete is poured through the top opening of the steel pipe pile body (1) to form a concrete pile foundation inside the steel pipe pile body (1) and outside the reinforcement opening (2). A reinforcing ear is formed outside the reinforcement opening (2), and the reinforcing ear is made of reinforced concrete.

2. The building pile foundation reinforcement structure according to claim 1, characterized in that: The width of the arc-shaped opening (5) is equal to the thickness of the reinforcing plate (3), the central angle of the arc-shaped opening (5) is 180°, and the end of the arc-shaped opening (5) adjacent to the reinforcing opening (2) is not lower than the horizontal diameter of the reinforcing plate (3).

3. The building pile foundation reinforcement structure according to claim 1, characterized in that: The length of the auxiliary rod (9) is not less than the length of the main body (1) of the steel pipe pile, and several auxiliary wings (8) are arranged in a circular array; The auxiliary wing (8) is vertically positioned at the upper outer end, and the auxiliary roller (10) is connected to the vertical section of the auxiliary wing (8). The axis of the auxiliary roller (10) is parallel to the axis of the reinforcing disk (3).

4. The building pile foundation reinforcement structure according to claim 1, characterized in that: The diameter of the reinforcing plate (3) is smaller than the radius of the main body (1) of the steel pipe pile.

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