Static pressure pile for building foundation reinforcement

Abstract

The static pressure pile comprises a first static pressure pile body, a second static pressure pile body, a middle layer welding plate and an outer welding frame, the first static pressure pile body is located above the second static pressure pile body, a plurality of upper welding grooves are formed in the periphery of the lower end of the first static pressure pile body, and a first horizontal convex edge is integrally arranged at the lower end of the first static pressure pile body; an upper welding seam is formed in the edge of the first horizontal convex edge, and a plurality of lower welding grooves are formed in the periphery of the upper end of the second static pressure pile, so that the problems that the welding connection surface of the original static pressure pile is relatively flat, the welding seam is easy to crack due to pressure increase when the static pressure piles are welded together, and a pile foundation is unstable are solved; the middle layer structure is additionally arranged at the connection welding seam of the two static pressure piles, so that the strength and durability of the welding seam can be improved, the uniformity and strength of the connection welding seam of the two static pressure piles are ensured, the phenomenon of fracture of the welding seam is prevented, and the phenomenon of instability of a pile foundation is avoided.

Description

Technical Field

[0001] This utility model is a static pressure pile for reinforcing the foundation of a building, belonging to the technical field of building reinforcement equipment. Background Technology

[0002] Static pressure piles are precast piles driven into the soil by the pile driving mechanism of a static pile driver, which uses the weight of the driver and the counterweight on the frame to provide reaction force. Concrete is then poured on top of the precast piles for reinforcement. However, when two static pressure piles are joined together, the weld is prone to cracking due to the increased pressure caused by the relatively flat joint surface, leading to unstable pile foundations. There is an urgent need for a static pressure pile for building foundation reinforcement to solve the above-mentioned problems. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a static pressure pile for the reinforcement of building foundations, so as to solve the problems mentioned in the background technology. This utility model adds an intermediate layer structure at the weld joint of two static pressure piles, which can improve the strength and durability of the weld joint, ensure the uniformity and strength of the weld joint of the two static pressure piles, prevent the weld joint from breaking, and thus make it less likely to cause pile foundation instability.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a static pressure pile for reinforcing building foundations, comprising a first static pressure pile, a second static pressure pile, an intermediate layer welded plate, and an outer welded frame. The first static pressure pile is located above the second static pressure pile. Multiple upper welded grooves are formed around the lower end of the first static pressure pile. A first horizontal protrusion is integrally formed at the lower end of the first static pressure pile, and an upper welded seam is formed at the edge of the first horizontal protrusion. Multiple lower welded grooves are formed around the upper end of the second static pressure pile. A second horizontal protrusion is integrally formed at the upper end of the second static pressure pile, and a lower welded seam is formed at the edge of the second horizontal protrusion. Multiple positioning reinforcing bars are installed through the intermediate layer welded plate. The upper groove of the intermediate layer welded plate is welded and fixed to the first horizontal protrusion, and the lower groove of the intermediate layer welded plate is welded and fixed to the second horizontal protrusion. The outer welded frame is fitted over the intermediate layer welded plate. Multiple upper welded reinforcing plates are longitudinally welded to the upper edge of the outer welded frame, and multiple lower welded reinforcing plates are longitudinally welded to the lower edge of the outer welded frame.

[0005] Furthermore, a pile head is fixed at the lower end of the second static pressure pile.

[0006] Furthermore, the second static pressure pile, the pile head, and the outer surface of the first static pressure pile are all coated with a corrosion-resistant coating.

[0007] Furthermore, multiple reinforcing steel cylinders are embedded on the lower surface of the first horizontal convex edge and the upper surface of the second horizontal convex edge, and the multiple positioning reinforcing steel bars are respectively positioned and inserted into the multiple reinforcing steel cylinders.

[0008] Furthermore, the plurality of upper welding stiffeners are respectively welded into the plurality of upper welding grooves, and the plurality of lower welding stiffeners are respectively welded into the plurality of lower welding grooves.

[0009] Furthermore, the upper edge of the outer welding frame is welded to the upper welding seam, and the lower edge of the outer welding frame is welded to the lower welding seam.

[0010] The beneficial effects of this utility model are as follows: This utility model provides a static pressure pile for reinforcing building foundations. Because it incorporates an upper welding groove, a first horizontal convex edge, an upper welding seam, a lower welding groove, a lower welding seam, a second horizontal convex edge, a reinforcing cylinder, an intermediate layer welding plate, positioning reinforcing bars, an outer welding frame, a lower welding stiffener, and an upper welding stiffener, our design improvements and practical use have shown that this device has a reasonable structure and good practicality. Adding an intermediate layer structure at the weld joint connecting two static pressure piles improves the strength and durability of the weld joint, ensures the uniformity and strength of the weld joint connecting the two static pressure piles, prevents weld breakage, and thus makes it less prone to pile foundation instability. Attached Figure Description

[0011] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0012] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a static pressure pile for reinforcing building foundations according to the present invention;

[0013] Figure 2 This is a schematic diagram showing the disassembled static pressure pile for reinforcing building foundations according to the present invention.

[0014] Figure 3 This is a schematic diagram of the installation of the intermediate layer welding plate of a static pressure pile used for building foundation reinforcement according to this utility model.

[0015] In the figure: 1-First static pressure pile, 2-Second static pressure pile, 3-Pile head, 4-Corrosion resistant coating, 5-Upper welding groove, 6-First horizontal protrusion, 7-Upper welding seam, 8-Lower welding groove, 9-Lower welding seam, 10-Second horizontal protrusion, 11-Reinforcing steel cylinder, 12-Intermediate layer welding plate, 13-Positioning reinforcing steel, 14-Outer welding frame, 15-Lower welding stiffener plate, 16-Upper welding stiffener plate. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] Please see Figures 1-3 This utility model provides a technical solution: a static pressure pile for reinforcing building foundations, comprising a first static pressure pile 1, a second static pressure pile 2, an intermediate welding plate 12, and an outer welding frame 14. The first static pressure pile 1 is located above the second static pressure pile 2. Multiple upper welding grooves 5 are formed around the lower end of the first static pressure pile 1. A first horizontal protrusion 6 is integrally formed at the lower end of the first static pressure pile 1, and an upper welding seam 7 is formed on the edge of the first horizontal protrusion 6. Multiple lower welding grooves 8 are formed around the upper end of the second static pressure pile 2. A second horizontal protrusion 10 is integrally formed at the upper end of the second static pressure pile 2, and a lower welding seam 7 is formed on the edge of the second horizontal protrusion 10. Multiple positioning steel bars 13 are installed through the middle layer welded plate 12. The upper groove of the middle layer welded plate 12 is welded and fixed to the first horizontal convex edge 6, and the lower groove of the middle layer welded plate 12 is welded and fixed to the second horizontal convex edge 10. The outer welded frame 14 is sleeved on the outside of the middle layer welded plate 12. Multiple upper welded stiffeners 16 are longitudinally welded to the upper edge of the outer welded frame 14, and multiple lower welded stiffeners 15 are longitudinally welded to the lower edge of the outer welded frame 14. This design solves the problem that the original static pressure pile welding connection surface is relatively flat, and the weld is prone to cracking due to the increased pressure when the static pressure piles are welded together, resulting in the instability of the pile foundation.

[0018] As the first embodiment of this utility model: a pile head 3 is fixed at the lower end of the second static pressure pile 2, and the addition of the pile head 3 facilitates the lower end of the static pressure pile being pressed into the soil. The outer surfaces of the second static pressure pile 2, the pile head 3, and the first static pressure pile 1 are all coated with a corrosion-resistant coating 4. The addition of the corrosion-resistant coating 4 can improve the corrosion resistance of the surfaces of the second static pressure pile 2, the pile head 3, and the first static pressure pile 1.

[0019] Multiple reinforcing steel tubes 11 are embedded on the lower surface of the first horizontal convex edge 6 and the upper surface of the second horizontal convex edge 10. Multiple positioning steel bars 13 are respectively positioned and inserted into the multiple reinforcing steel tubes 11. By adding multiple positioning steel bars 13 and positioning them in the multiple reinforcing steel tubes 11, it is easy to accurately weld the intermediate layer welding plate 12 between the first horizontal convex edge 6 and the second horizontal convex edge 10.

[0020] Multiple upper welding stiffeners 16 are welded into multiple upper welding grooves 5, and multiple lower welding stiffeners 15 are welded into multiple lower welding grooves 8. The addition of these upper welding stiffeners 16 and lower welding stiffeners 15 improves the strength of the connection between the outer welding frame 14 and the first static pressure pile 1 and the second static pressure pile 2. The upper edge of the outer welding frame 14 is welded to the upper welding seam 7, and the lower edge is welded to the lower welding seam 9. The addition of the upper welding seam 7 and lower welding seam 9 facilitates the use of welding rods to weld the upper and lower ends of the outer welding frame 14 to the first static pressure pile 1 and the second static pressure pile 2.

[0021] As a second embodiment of this utility model: the intermediate layer welding plate 12 is placed on the second horizontal convex edge 10, so that the multiple positioning steel bars 13 on the lower side are respectively inserted into the multiple steel bar cylinders 11 on the lower side. Then, the lower end of the intermediate layer welding plate 12 and the edge of the second horizontal convex edge 10 are welded and fixed using external welding equipment. After welding, the welding slag is removed using an external grinder. Then, the outer welding frame 14 is fitted onto the outside of the intermediate layer welding plate 12. At this time, the multiple lower welding stiffeners 15 are respectively located in the multiple lower welding grooves 8. Then, the lower end of the outer welding frame 14 is welded to the second horizontal convex edge 10 using external welding equipment, so that the weld material is located at the lower welding seam 9. Then, the multiple lower welding stiffeners 15 and the multiple lower welding grooves 8 are connected. After welding is performed and the slag is removed using an external grinder, the first static pressure pile 1 is hoisted above the second static pressure pile 2. The first horizontal convex edge 6 is inserted into the upper side of the intermediate layer welded plate 12, so that the multiple positioning steel bars 13 on the upper side are respectively inserted into the multiple steel bar cylinders 11 on the upper side. At this time, the multiple upper welding stiffener plates 16 will also be in the multiple upper welding grooves 5. Then, the upper end of the intermediate layer welded plate 12, the upper end of the outer welding frame 14 and the connection with the first horizontal convex edge 6 can be welded using external welding equipment, so that the weld material is in the upper welding groove 5. Then, the multiple upper welding stiffener plates 16 are welded to the multiple upper welding grooves 5. Finally, the slag at this position is removed using an external grinder, and the reinforcement welding is achieved, which facilitates the subsequent pressing of the entire device into the soil.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A static pressure pile for building foundation reinforcement, comprising a first static pressure pile (1), a second static pressure pile (2), an intermediate layer of welded plates (12) and an outer welded frame (14), characterized in that: The first static pressure pile (1) is above the second static pressure pile (2), a plurality of upper welding grooves (5) are formed around the lower end of the first static pressure pile (1), the first static pressure pile (1) is integrally provided with a first horizontal flange (6) at the lower end, and an upper welding seam (7) is formed at the edge of the first horizontal flange (6). The second static pressure pile (2) is integrally provided with a second horizontal flange (10) at the upper end, a lower welding seam (9) is formed at the edge of the second horizontal flange (10), a plurality of positioning steel bars (13) are installed through the intermediate layer welding plate (12), the upper end groove of the intermediate layer welding plate (12) is welded and fixed with the first horizontal flange (6), the lower end groove of the intermediate layer welding plate (12) is welded and fixed with the second horizontal flange (10), the outer welding frame (14) is sleeved outside the intermediate layer welding plate (12), a plurality of upper welding rib plates (16) are longitudinally welded at the upper end edge of the outer welding frame (14), and a plurality of lower welding rib plates (15) are longitudinally welded at the lower end edge of the outer welding frame (14).

2. A static pressure pile for building foundation reinforcement according to claim 1, characterized in that: The second static pressure pile (2) is fixed with a pile head (3) at the lower end.

3. A static pressure pile for building foundation reinforcement according to claim 2, characterized in that: The outer surfaces of the second static pressure pile (2), the pile head (3) and the first static pressure pile (1) are coated with a corrosion-resistant coating (4).

4. A static pressure pile for building foundation reinforcement according to claim 1, characterized in that: A plurality of steel bar cylinders (11) are embedded in the lower surface of the first horizontal flange (6) and the upper surface of the second horizontal flange (10), and a plurality of positioning steel bars (13) are respectively positioned and inserted into the plurality of steel bar cylinders (11).

5. A static pressure pile for building foundation reinforcement according to claim 1, characterized in that: A plurality of upper welding rib plates (16) are respectively welded in a plurality of upper welding grooves (5), and a plurality of lower welding rib plates (15) are respectively welded in a plurality of lower welding grooves (8).

6. A static pressure pile for building foundation reinforcement according to claim 1, characterized in that: The upper end edge of the outer welding frame (14) is welded at the upper welding seam (7), and the lower end edge of the outer welding frame (14) is welded at the lower welding seam (9).

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