Tubular pile of assembly type high-pile wharf
By setting up a multi-layered composite support structure with steel lining, limiting channel steel group and supporting channel steel inside the pipe pile, the problems of insufficient bearing capacity and structural instability of prefabricated high pile wharf under extreme conditions are solved, and a longer service life and stability are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CCCC THIRD HARBOR ENGINEERING CO LTD
- Filing Date
- 2025-03-25
- Publication Date
- 2026-04-24
AI Technical Summary
The existing prefabricated high-pile wharves have limited bearing capacity under extreme conditions, and lack internal support and reinforcement measures during manufacturing and installation, resulting in structural instability and shortened service life.
A steel lining is installed inside the pipe pile, and a limiting channel steel group and a supporting channel steel are built inside it to form a multi-layer composite support structure. The internal structure is strengthened and supported by reinforcing grout.
It enhances the radial compressive, shear, and torsional resistance of the pipe pile, improves overall rigidity, avoids stress concentration, extends service life, and reduces maintenance costs.
Smart Images

Figure CN224161061U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe pile construction technology, specifically to a prefabricated high-pile wharf pipe pile. Background Technology
[0002] Prefabricated high-pile wharves are a common type of port facility. They primarily rely on a series of pipe piles driven deep into the seabed or riverbed to support the superstructure, thus enabling the construction and operation of the wharf. These pipe piles, as the key supporting structure of the wharf, are crucial to the safety and service life of the entire wharf.
[0003] However, existing prefabricated high-pile wharf pipe piles have some shortcomings in design and use. On the one hand, traditional pipe pile structures often rely on a single material (such as concrete or steel) to provide the necessary strength and support. This design may lead to limited bearing capacity of the pipe piles under certain extreme conditions (such as strong winds, large waves, earthquakes, etc.), thereby affecting the overall stability of the wharf.
[0004] On the other hand, existing pipe pile structures often lack sufficient internal support and reinforcement measures during manufacturing and installation, which may lead to problems such as cracking and deformation of the pipe piles during long-term use, thereby shortening their service life and increasing maintenance costs.
[0005] To address these issues, the industry has been exploring more advanced and reliable pipe pile design and manufacturing technologies. One feasible solution is to enhance the structural strength and stability of the pipe pile by adding structures such as steel linings and limiting channel steel assemblies inside. However, how to achieve a reasonable layout and effective support of the internal structure while ensuring the structural strength of the pipe pile remains a pressing problem to be solved in the current technological field.
[0006] Therefore, in view of the shortcomings of the existing technology, this utility model proposes a pipe pile design with high structural strength that can effectively support prefabricated high-pile wharves. The aim is to improve the bearing capacity and stability of the pipe piles by optimizing the internal structural layout and reinforcement measures, thereby extending the service life of the wharf and reducing maintenance costs. Utility Model Content
[0007] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a pipe pile for a prefabricated high-pile wharf with high structural strength that can support the prefabricated high-pile wharf.
[0008] The technical problem to be solved by this utility model is achieved through the following technical solution: a prefabricated high-pile wharf pipe pile, which includes;
[0009] The pipe pile body is formed into a circular tubular structure;
[0010] The steel liner is formed into a circular tubular structure and is concentrically embedded in the pipe pile body. The outer circumferential surface of the steel liner is in contact with the inner circumferential surface of the pipe pile body, thereby supporting the inner wall of the pipe pile body.
[0011] The limiting channel steel assembly consists of several limiting channel steels arranged circumferentially on the inner circumferential surface of the steel lining. The side of each limiting channel steel facing the center of the steel lining is designated as the inner surface of the channel steel. A positioning steel plate is vertically installed on the inner surface of each limiting channel steel.
[0012] The supporting channel steel is composed of several vertically fixed and connected supporting steel plates. Each of the supporting steel plates abuts against the inner surface of the channel steel and the positioning steel plate of one of the limiting channel steels, so that the limiting channel steel assembly is abutted against the inner circumferential surface of the steel liner.
[0013] The space between the steel lining, the limiting channel steel group and the supporting channel steel forms a space for pouring reinforcing grout.
[0014] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the pipe pile of the prefabricated high-pile wharf described above, wherein the limiting channel steel consists of a horizontal plate and two vertical plates, the two vertical plates are vertically fixed on the two ends of the side of the horizontal plate, and the positioning steel plate is vertically fixed on the side wall of the horizontal plate of the limiting channel steel.
[0015] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the prefabricated high-pile wharf pipe pile described above, wherein the limiting channel steel group is composed of four limiting channel steels, and the included angle between two adjacent limiting channel steels is 90°.
[0016] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the positioning steel plate of the prefabricated high-pile wharf described above is located on the middle of the inner surface of the limiting channel steel.
[0017] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the number of supporting steel plates and the number of limiting channel steels in the prefabricated high-pile wharf pipe piles described above are set in a one-to-one correspondence.
[0018] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0019] (1) By concentrically embedding a steel liner inside the pipe pile body, and embedding a limiting channel steel group and a supporting channel steel in the steel liner, a multi-layer composite support structure is formed between the pipe pile, the steel liner, the limiting channel steel group and the supporting channel steel. This setting not only enhances the radial compressive strength of the pipe pile, but also significantly improves its shear and torsional resistance, so that the pipe pile can provide more stable support force to the prefabricated high pile wharf and effectively extend the service life of the high pile wharf.
[0020] (2) The limiting channel steel group and the supporting channel steel can provide fixation and support for the inside of the steel lining. On the other hand, after being combined with the reinforcing grout, they can form a dense reinforcing layer inside the pipe pile body, which not only improves the overall rigidity of the pipe pile, but also avoids the stress concentration problem caused by uneven internal structure, thereby enhancing the durability of the pipe pile. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the full cross-sectional structure of the pipe pile of this utility model;
[0022] Figure 2 This is an elevation view of the prefabricated high-pile wharf before the use of the pipe pile of this utility model.
[0023] Attached reference numerals: 1. Pipe pile body; 2. High-pile wharf crossbeam; 3. Steel lining; 4. Limiting channel steel; 41. Horizontal plate; 42. Vertical plate; 5. Positioning steel plate; 6. Supporting channel steel. Detailed Implementation
[0024] The specific technical solutions of this utility model are further described below with reference to the accompanying drawings, so as to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.
[0025] Example 1, referring to Figure 1-2 A prefabricated high-pile wharf crossbeam 2, comprising:
[0026] The pipe pile body 1 is formed into a circular tube structure. Its length can be selected according to the usage requirements. Its bottom is inserted into the seabed or fixed to the foundation as one piece. Its top is inserted into the prefabricated high-pile wharf crossbeam 2 with a cylindrical groove on the bottom surface, thereby supporting the prefabricated high-pile wharf crossbeam 2.
[0027] The steel liner 3 is formed into a circular tubular structure and is concentrically built into the pipe pile body 1. The outer circumferential surface of the steel liner 3 is in contact with the inner circumferential surface of the pipe pile body 1, thereby supporting the inner wall of the pipe pile body 1.
[0028] To improve the internal structural strength of the steel liner 3, we have added a limiting channel steel group, which consists of several limiting channel steels 4 arranged circumferentially on the inner circumferential surface of the steel liner 3. The number of them can be selected according to the usage requirements, for example, 4 pieces. The side of each limiting channel steel 4 facing the center of the steel liner 3 is set as the inner surface of the channel steel. A positioning steel plate 5 is vertically installed on the inner surface of the channel steel of each limiting channel steel 4. The positioning steel plate 5 is formed into a roughly square plate structure.
[0029] The supporting channel steel 6 is composed of several vertically fixed and connected supporting steel plates. Each of the supporting steel plates abuts against the inner surface of the channel steel of one of the limiting channel steels 4 and the positioning steel plate 5, so that the limiting channel steel 4 is abutted against the inner circumferential surface of the steel liner 3. The limiting channel steel 4 is composed of a horizontal plate 41 and two vertical plates 42. The horizontal plate 41 and the vertical plates 42 form a roughly square plate structure. The two vertical plates 42 are vertically fixed on the two ends of the side of the horizontal plate 41. The positioning steel plate 5 is vertically fixed on the side wall of the horizontal plate 41 of the limiting channel steel 4. The positioning steel plate 5 is located on the middle of the inner surface of the channel steel of the limiting channel steel 4.
[0030] By supporting the channel steel 6, the limiting channel steel 4 sets are abutted against the inner circumferential surface of the steel liner 3, and the arrangement of the supporting channel steel 6 can also strengthen the structural strength between the steel liner 3 and the limiting channel steel 4 sets, making the structural stability of the pipe pile body 1 better.
[0031] The aforementioned limiting channel steel group 4 is composed of four limiting channel steels 4, and the included angle between two adjacent limiting channel steels 4 is 90°.
[0032] The number of supporting steel plates is set in a one-to-one correspondence with the number of limiting channel steels 4.
[0033] In Example 1, the prefabricated high-pile wharf crossbeam 2 is constructed by simply assembling the pipe pile body 1, steel lining 3, limiting channel steel 4 sets, and supporting channel steel 6 into one unit, driving it into the sea area where the prefabricated high-pile wharf crossbeam 2 is laid, and then filling the steel lining 3 with concrete grout to complete the prefabrication. Finally, the prefabricated high-pile wharf crossbeam 2 with columnar grooves on the bottom surface is hoisted onto the top of the pipe pile body 1 to complete the construction.
Claims
1. A type of prefabricated high-pile wharf pipe pile, characterized in that: It includes; The pipe pile body is formed into a circular tubular structure; The steel liner is formed into a circular tubular structure and is concentrically embedded in the pipe pile body. The outer circumferential surface of the steel liner is in contact with the inner circumferential surface of the pipe pile body, thereby supporting the inner wall of the pipe pile body. The limiting channel steel assembly consists of several limiting channel steels arranged circumferentially on the inner circumferential surface of the steel lining. The side of each limiting channel steel facing the center of the steel lining is designated as the inner surface of the channel steel. A positioning steel plate is vertically installed on the inner surface of each limiting channel steel. The supporting channel steel is composed of several vertically fixed and connected supporting steel plates. Each of the supporting steel plates abuts against the inner surface of the channel steel and the positioning steel plate of one of the limiting channel steels, so that the limiting channel steel assembly is abutted against the inner circumferential surface of the steel liner. The space between the steel lining, the limiting channel steel group and the supporting channel steel forms a space for pouring reinforcing grout.
2. The pipe pile of a prefabricated high-pile wharf according to claim 1, characterized in that: The limiting channel steel consists of a horizontal plate and two vertical plates. The two vertical plates are vertically fixed to the two ends of the side of the horizontal plate, and the positioning steel plate is vertically fixed to the side wall of the horizontal plate of the limiting channel steel.
3. The pipe pile of a prefabricated high-pile wharf according to claim 1, characterized in that: The limiting channel steel group consists of four limiting channel steels, with the included angle between two adjacent limiting channel steels being 90°.
4. The pipe pile of a prefabricated high-pile wharf according to claim 2, characterized in that: The positioning steel plate is located on the middle of the inner surface of the limiting channel steel.
5. The pipe pile of a prefabricated high-pile wharf according to claim 1, characterized in that: The number of supporting steel plates is set in a one-to-one correspondence with the number of limiting channel steels.