Pile head repairing structure
By connecting the flange and tie plate on the pile head and filling it with polymer, the repair problem of cracked pile body or damaged pile head during pile construction is solved, and efficient and stable pile head repair effect is achieved.
Patent Information
- Application Number
- CN202421323035.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-06-11
AI Technical Summary
During the construction of pile sinking, if the pile body is cracked or the pile head is damaged, it is difficult to repair efficiently in the existing technology, especially in the construction of large-area high-density pile sinking, secondary pile sinking is difficult to implement.
A pile head repair structure is provided, by cutting off the damaged part, exploiting the main rib, and connecting the flange on the top, fixed between the flange and the side wall of the pile head by a tie plate, forming an accommodating space and filling with polymer for repair.
Convenient and efficient pile head repair is achieved, the repaired pile head has stable quality, simple operation, economical and high efficiency, and is suitable for large-area high-density pile construction.
Smart Images
Figure CN222632227U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe pile construction, and more specifically, to a pile head repairing structure. Background Art
[0002] Pile driving refers to the process of sinking various pre-made piles (mainly reinforced concrete or prestressed concrete solid piles or pipe piles, but also steel piles or wooden piles) into the foundation in different ways to reach the required depth.
[0003] During the pile driving process, a variety of factors may cause cracks in the pile body or damage to the pile head, such as complex geology, thick sand penetration layers, and a high number of hammer blows during pile driving; or the compacting soil effect due to group pile construction; as well as improper operation during the pile driving process and defects in the pile body quality.
[0004] When the pile body cracks or the pile head is damaged during the pile driving process, it is generally necessary to add piles or redesign the pile length. However, in large-scale high-density pile driving, it is difficult to use secondary pile driving due to the high pile density and hard soil. Therefore, it is generally necessary to use additional piles. Utility Model Content
[0005] In view of this, the utility model provides a pile head repair structure, which can repair a damaged pile head conveniently and efficiently, and the quality of the repaired pile head is stable.
[0006] The utility model provides a pile head repair structure, wherein the pile head comprises a main rib protruding from the top, and is characterized in that an end of the main rib away from the pile head is connected with a flange;
[0007] In the vertical direction, a tie plate is connected between the flange and the side wall of the pile head;
[0008] A high molecular polymer is filled between the flange and the top of the pile head.
[0009] In a possible implementation, the flange includes at least two countersunk holes, and any one of the main reinforcements passes through one of the countersunk holes.
[0010] In a possible implementation, the main rib and the countersunk hole are welded, and the solder fills the space between the main rib and the countersunk hole.
[0011] In a possible implementation, the top of the tie plate is not higher than the top of the flange.
[0012] In a possible implementation, the tie plate is arc-shaped;
[0013] The inner wall of the tie plate is in contact with the outer wall of the pile head, and the width of the tie plate is 150 mm and the thickness is 3 mm.
[0014] In a possible implementation, the tie plates include at least two, the side walls of adjacent tie plates are in contact with each other, and a plurality of tie plates surround the pile head and the flange.
[0015] In a possible implementation, the protruding length of the main rib is not less than 75 mm.
[0016] In a possible implementation, the distance between the bottom of the flange and the top of the pile head is not less than 50 mm.
[0017] In a possible implementation, the high molecular polymer includes epoxy resin and a curing agent.
[0018] In a possible implementation, the pile head is a PHC pipe pile head.
[0019] Compared with the prior art, the pile head repair structure provided by the utility model achieves at least the following beneficial effects:
[0020] In the embodiment provided by the utility model, the cracked and damaged parts of the pipe pile are cut off, and the main reinforcement is stripped out from the remaining pile head part. A flange is connected to the top of the main reinforcement, and a tie plate is fixed between the flange and the pile head side wall to form an accommodation space, and a high molecular polymer is filled in the accommodation space. The pile head repair structure provided by the utility model is simple, easy to operate, highly practical, and highly economical. The quality of the repaired pile head is stable.
[0021] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time.
[0022] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.
[0024] Figure 1 A schematic diagram of a pipe pile damage provided by the utility model;
[0025] Figure 2 A schematic diagram of pile head exploitation provided by the utility model;
[0026] Figure 3 A schematic diagram of a flange connection provided by the utility model;
[0027] Figure 4A schematic diagram of the connection of a tie plate provided by the utility model;
[0028] Figure 5 The utility model is a schematic diagram of a pile head repair structure provided by the utility model. DETAILED DESCRIPTION
[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention.
[0030] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.
[0031] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.
[0032] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0033] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0034] The utility model embodiment provides a pile head repair structure, referring to Figure 1 As shown, when the pile body is cracked or the pile head is damaged, the damaged pile head should be cut off first. Specifically, the surface of the pile head should be soaked and the cracks on the inner and outer surfaces of the pile should be checked. Measure and mark the distance 300mm from the last crack, cut the pile horizontally at the marked point, remove all loose particles with a wire brush, and then clean it with water.
[0035] Furthermore, the pile head 10 is a PHC pipe pile head. PHC pipe pile, i.e., the prestressed high-intensity concrete, is produced by a professional manufacturer, using advanced processes such as prestressing by pre-tensioning method and adding finely ground materials and high-efficiency water reducing agent, and the concrete is compacted by centrifugal dehydration, and cured by steam twice with normal pressure and high pressure to form a slender hollow uniform cross-section precast concrete component.
[0036] Further, refer to Figure 2As shown, the concrete section is stripped to expose the main reinforcement 11 at the top of the pile head 10. Specifically, the protruding length of the main reinforcement is not less than 75 mm. It should be noted that the main reinforcement 11 should not be cut during the stripping process.
[0037] Further, refer to Figure 3 As shown, the end of the main reinforcement 11 away from the pile head 10 is connected to a flange 20; specifically, the flange 20 includes at least two countersunk holes 21, and any main reinforcement 11 passes through one countersunk hole 21. The main reinforcement 11 and the countersunk hole 21 are welded, and the solder fills the space between the main reinforcement 11 and the countersunk hole 21.
[0038] It is understandable that the countersunk hole 21 of the flange 20 is passed through the protruding main rib 11, the surface of the flange 20 is polished flat with a grinding wheel, and then the flange 20 and the main rib 11 are fixed by spot welding, and the countersunk hole 21 is completely filled by welding.
[0039] Furthermore, the distance between the bottom of the flange 20 and the top of the pile head 10 is not less than 50 mm.
[0040] Further, refer to Figure 4 As shown, in the vertical direction, the tie plate 30 is connected between the flange 20 and the side wall of the pile head 10. Specifically, firstly, the tie plate 30 is tightened with a binding belt to ensure that the edge of the top of the tie plate 30 is flush with the edge of the flange 20, and the bottom of the tie plate 30 is in contact with the side wall of the pile head 10. Then, spot welding is performed between the tie plate 30 and the flange 20 to initially fix them.
[0041] Specifically, the tie plate 30 is arc-shaped, the inner wall of the tie plate 30 is fitted with the outer wall of the pile head 10, the tie plate 30 includes at least 2, the side walls of adjacent tie plates 30 are fitted with each other, and a plurality of tie plates 30 surround the pile head 10 and the flange 20. Use a hammer to tap to close the gap between adjacent tie plates 30, open the binding tape, and continue to complete the welding. Finally, grind the top area of the flange 20 to ensure that the top of the tie plate 30 is not higher than the top of the flange 20. Clean the surface and cool for 40 minutes. In an optional embodiment, the width of the tie plate 30 is 150mm and the thickness is 3mm.
[0042] Further, refer to Figure 5 As shown, a high molecular polymer 40 is filled between the flange 20 and the top of the pile head 10 .
[0043] The high molecular polymer 40 includes epoxy resin and curing agent.
[0044] Specifically, epoxy resin is prepared, and epoxy resin and curing agent are fully mixed for 10 minutes to form a uniform high molecular polymer 40. The space between the flange 20 and the pile head 10 is filled with the high molecular polymer 40. Since the distance between the bottom of the flange 20 and the top of the pile head 10 is not less than 50 mm, the thickness of the high molecular polymer 40 is not less than 50 mm. The high molecular polymer 40 is compacted and the excess is removed, and the epoxy resin is fully cured for three days, and the pile head 10 is repaired.
[0045] In summary, the pile head repair structure provided by the utility model achieves at least the following beneficial effects:
[0046] In the embodiment provided by the utility model, the cracked and damaged parts of the pipe pile are cut off, and the main reinforcement is stripped out from the remaining pile head part. A flange is connected to the top of the main reinforcement, and a tie plate is fixed between the flange and the pile head side wall to form an accommodation space, and a high molecular polymer is filled into the accommodation space to achieve the repair of the damaged pile head. The pile head repair structure provided by the utility model is simple, easy to operate, highly practical, and highly economical, and the quality of the repaired pile head is stable.
[0047] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A pile head repair structure, the pile head comprising a main reinforcement protruding from the top, characterized in that: One end of the main reinforcement away from the pile head is connected with a flange; In the vertical direction, a tie plate is connected between the flange and the side wall of the pile head; A high molecular polymer is filled between the flange and the top of the pile head.
2. The pile head repair structure according to claim 1, characterized in that: The flange plate includes at least two countersunk holes, and any one of the main reinforcements passes through one of the countersunk holes.
3. The pile head repair structure according to claim 2, characterized in that: The main rib and the countersunk hole are welded, and the solder fills the space between the main rib and the countersunk hole.
4. The pile head repair structure according to claim 1, characterized in that: The top of the tie plate is not higher than the top of the flange.
5. The pile head repair structure according to claim 4, characterized in that: The tie plate is arc-shaped; The inner wall of the tie plate is in contact with the outer wall of the pile head, and the width of the tie plate is 150 mm and the thickness is 3 mm.
6. The pile head repair structure according to claim 5, characterized in that: The tie plates include at least two, the side walls of adjacent tie plates are fitted together, and a plurality of tie plates surround the pile head and the flange.
7. The pile head repair structure according to claim 1, characterized in that: The protruding length of the main reinforcement is not less than 75mm.
8. The pile head repair structure according to claim 1, characterized in that: The distance between the bottom of the flange and the top of the pile head is not less than 50 mm.
9. The pile head repair structure according to claim 1, characterized in that: The high molecular polymer includes epoxy resin and curing agent.
10. The pile head repair structure according to claim 1, characterized in that: The pile head is a PHC pipe pile head.