A pipe rack and steel pipe pile foundation connecting grouting component

Abstract

The utility model discloses a kind of grouting components of connecting jacket and steel pipe pile foundation, it is related to offshore wind power technology field, including pile foundation, its inside is equipped with sealing slurry ring plate;Jacket is located in pile foundation, the outer lateral wall of the jacket is equipped with annular steel ring, the lower side of the annular steel ring and the upper side of sealing slurry ring plate are in abutment;Capping sleeve, it is equipped with through-hole on it, the capping sleeve is sleeved on jacket through through-hole, the lower side of the capping sleeve and the upper end end of pile foundation are in abutment, the utility model can be realized joint stress by the lapping of annular steel ring and sealing slurry ring plate, and reach closed effect, again cooperate capping sleeve to make it form closed grouting space, by grouting into grouting space, enhance grouting effect, make it form a whole structure, enhance the connection precision and connection strength of jacket and pile foundation, improve its security and stability.

Description

Technical Field

[0001] This utility model relates to the field of offshore wind power generation technology, and in particular to a grouting component for connecting a jacket structure and a steel pipe pile foundation. Background Technology

[0002] In recent years, with the continuous improvement of global industrial levels and the rapid development and utilization of non-renewable energy sources such as coal and oil, global energy consumption has intensified, and energy reserves have decreased significantly, failing to meet the ever-growing energy demands of people. At the same time, the use of thermal power has exacerbated global environmental problems, leading to climate warming and environmental degradation. Currently, offshore wind power, as a new type of renewable and clean energy, is developing rapidly, with relatively mature technology and abundant reserves that can be utilized long-term, demonstrating promising development prospects.

[0003] Offshore wind turbines withstand complex cyclic loads from wind and waves, making the wind turbine foundation crucial. Foundation design is therefore a key technology in offshore wind turbine design. Currently, the mainstream foundation types are monopile foundations and jacket foundations. Jacket foundations, due to their high strength and rigidity, are widely used in large offshore wind turbines. Steel pipe pile foundations, on the other hand, bear significant loads on the superstructure of the wind turbine. To ensure safe and stable operation, high connection precision is required between the jacket and the steel pipe piles. Traditional connection structures between the jacket legs and the steel pipe pile foundations cannot effectively reduce the impact of environmental loads, making the structure prone to displacement and deformation. Utility Model Content

[0004] To overcome at least one of the defects described in the prior art, this utility model provides a grouting component for connecting a jacket frame to a steel pipe pile foundation. This addresses issues such as insufficient strength in the connection structure between the jacket frame legs and the steel pipe pile foundation.

[0005] The technical solution adopted by this utility model to solve its problem is: A grouting component for connecting a guide frame to a steel pipe pile foundation includes: The pile foundation has a grout sealing ring plate inside; A guide frame is installed inside the pile foundation. A circumferential steel ring is provided on the outer wall of the guide frame. The lower side of the circumferential steel ring abuts against the upper side of the grouting ring plate. A capping sleeve is provided with a through hole. The capping sleeve is sleeved on the guide frame through the through hole, and the lower side of the capping sleeve abuts against the upper end of the pile foundation.

[0006] Through the above scheme, the overlapping of the circumferential steel ring and the sealing ring plate can achieve joint stress and a sealing effect. Combined with the capping sleeve, it forms a closed grouting space. By grouting into the grouting space, the grouting effect is enhanced, forming an integral structure, which enhances the connection accuracy and strength between the guide frame and the pile foundation, and improves its safety and stability.

[0007] Furthermore, the capping sleeve has an annular groove on the side facing the pile foundation, and the upper end of the pile foundation is embedded in the annular groove.

[0008] The above-mentioned further solutions, after sealing the space between the pile foundation and the guide frame, can also limit the position of the guide frame within the pile foundation, preventing the guide frame from moving and affecting the overlap between the sealing ring plate and the circumferential steel ring.

[0009] Furthermore, the capping sleeve is fixedly connected to the guide frame.

[0010] The above-mentioned further solutions enable the capping sleeve and the guide frame to form an integrated structure. By interlocking the capping sleeve with the pile foundation, the guide frame and the pile foundation are relatively fixed, and the weight of the guide frame and part of the concrete is directly applied to the pile foundation. All the forces are vertically downward, which further increases the connection accuracy and strength between the guide frame and the pile foundation. It also reduces the force on the circumferential steel ring and the grouting ring plate, allowing the pile foundation to directly bear most of the force, and further making the guide frame more stable within the pile foundation.

[0011] Furthermore, the outer diameter of the circumferential steel ring is larger than the inner diameter of the sealing ring plate.

[0012] The above-mentioned further solutions enable the circumferential steel ring to overlap with the sealing ring plate, forming a bottom-closed state.

[0013] Furthermore, the difference between the outer diameter of the circumferential steel ring and the inner diameter of the pile foundation is less than the difference between the outer diameter of the circumferential steel ring and the inner diameter of the sealing ring plate.

[0014] With the above-mentioned further solution, when the circumferential steel ring moves laterally, the circumferential steel ring can always abut against the sealing ring plate, preventing the outer side of the circumferential steel ring from being located in the inner ring of the sealing ring plate, thus affecting the connection strength between them.

[0015] Furthermore, the depth of the annular groove is four-fifths of the height of the capping sleeve.

[0016] The above-mentioned further solutions effectively increase the contact area between the capping sleeve and the pile foundation, improve the bending resistance of the overall structure, and leave a certain thickness at the top to reduce the local pressure on the capping sleeve and prevent local bending deformation.

[0017] Furthermore, the pile foundation is provided with grouting holes located between the capping sleeve and the circumferential steel ring.

[0018] Through the above-mentioned further scheme, grouting holes can be used to inject concrete between the pile foundation and the guide frame.

[0019] Furthermore, the grouting holes are provided in two symmetrical arrangement.

[0020] The above-mentioned further methods can increase the grouting rate.

[0021] Furthermore, both the circumferential steel ring and the lower side of the sealing ring plate are provided with reinforcing ribs.

[0022] The above-mentioned further solutions increase the load-bearing capacity and bending resistance of the circumferential steel ring and the sealing ring plate.

[0023] Furthermore, the ring width of the sealing ring plate is less than half the difference between the inner diameter of the pile foundation and the outer diameter of the guide frame.

[0024] Through the above-mentioned further solutions, during the process of implanting pile foundations, when filling the pile foundation with soil, the ring width of the sealing ring plate will affect the soil residue. When there is too much residual soil, it will affect the grouting effect.

[0025] In summary, the grouting component for connecting the guide frame and the steel pipe pile foundation provided by this utility model has the following technical effects: The overlapping of the circumferential steel ring and the sealing ring plate can achieve joint stress and a sealing effect. Combined with the capping sleeve, it forms a closed grouting space. By grouting into the grouting space, the grouting effect is enhanced, forming an integral structure. This enhances the connection accuracy and strength between the guide frame and the pile foundation, improving its safety and stability. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the catheter holder structure of this utility model; Figure 4 This is a schematic diagram of the pile foundation structure of this utility model; Figure 5 This is a schematic diagram of the capping sleeve structure of this utility model.

[0028] In the diagram: 1. Pile foundation; 11. Grouting ring plate; 12. Grouting hole; 2. Guide frame; 21. Circumferential steel ring; 22. Reinforcing rib; 23. Guide plate; 231. Circumferential plate; 3. Top sleeve; 31. Through hole; 311. Circumferential groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] Example: refer to Figures 1-5As shown, a grouting component connecting a guide frame to a steel pipe pile foundation includes a pile foundation 1. A sealing ring plate 11 is welded inside the pile foundation 1. A guide frame 2 is installed inside the pile foundation 1. A circumferential steel ring 21 is welded to the outer wall of the guide frame 2 inside the pile foundation 1. The lower side of the circumferential steel ring 21 abuts against the upper side of the sealing ring plate 11. A top sleeve 3 is fitted onto the guide frame 2. The top sleeve 3 has a through hole 31, and the guide frame 2 is located within the through hole 31. The lower side of the top sleeve 3 is flush with the upper end of the pile foundation 1. The ends abut against each other, and the overlap of the circumferential steel ring 21 and the sealing ring plate 11 can achieve joint force bearing and a sealing effect. Combined with the capping sleeve 3, it forms a closed grouting space. The pile foundation 1 is provided with a grouting hole 12 between the capping sleeve 3 and the circumferential steel ring 21. The grouting hole 12 can inject concrete between the pile foundation 1 and the guide frame 2 to form an integral structure, enhance the connection accuracy and connection strength between the guide frame 2 and the pile foundation 1, and improve its safety and stability.

[0033] The grouting holes 12 are provided in two symmetrical arrangement to increase the grouting rate.

[0034] A further extension of this embodiment is to set multiple layers of grouting holes in the height direction of the pile foundation 1 to increase the grouting rate.

[0035] The capping sleeve 3 has an annular groove 311 on the side facing the pile foundation 1. The upper end of the pile foundation 1 is embedded in the annular groove 311. After sealing the space between the pile foundation 1 and the guide frame 2, it can also limit the position of the guide frame 2 in the pile foundation 1, prevent the guide frame 2 from moving and affecting the overlap of the sealing ring plate 11 and the circumferential steel ring 21, and achieve precise positioning of the guide frame 2 and the pile foundation 1.

[0036] The capping sleeve 3 is welded to the guide frame 2, which enables the capping sleeve 3 and the guide frame 2 to form an integral structure. Through the interlocking of the capping sleeve 3 with the pile foundation 1, the guide frame 2 and the pile foundation 1 are relatively fixed, and the weight of part of the guide frame 2 and part of the concrete is directly applied to the pile foundation 1. All the forces are vertically downward, which further increases the connection accuracy and connection strength between the guide frame 2 and the pile foundation 1. It can also reduce the force on the circumferential steel ring 21 and the grouting ring plate 11, so that the pile foundation 1 directly bears most of the force, and further makes the guide frame 2 more stable in the pile foundation 1.

[0037] The depth of the annular groove 311 is four-fifths of the height of the capping sleeve 3, which effectively increases the contact area between the capping sleeve 3 and the pile foundation 1, improves the bending resistance of the overall structure, and leaves a certain thickness at the top to reduce the local pressure on the capping sleeve 3 and prevent local bending deformation.

[0038] Among them, the outer diameter of the circumferential steel ring 21 is larger than the inner diameter of the sealing ring plate 11, which enables the circumferential steel ring 21 to overlap with the sealing ring plate 11 to form a bottom closed state. Grouting will make the sealing ring plate 11 and the circumferential steel ring 21 achieve a more solid connection. The guide frame 2 and the pile foundation are connected by grouting, and the overall connection strength of the structure is greatly enhanced.

[0039] The difference between the outer diameter of the circumferential steel ring 21 and the inner diameter of the pile foundation 1 is less than the difference between the outer diameter of the circumferential steel ring 21 and the inner diameter of the sealing ring plate 11. When the circumferential steel ring 21 moves laterally, the circumferential steel ring 21 can always abut against the sealing ring plate 11, preventing the outer side of the circumferential steel ring 21 from being located in the inner circle of the sealing ring plate 11, thus affecting the connection strength between them.

[0040] The circumferential steel ring 21 has its width appropriately increased to increase the overlap area between the circumferential steel ring 21 and the sealing ring plate 11, thereby improving the load-bearing capacity of the overlap and reducing local stress.

[0041] The ring width of the sealing ring plate 11 is less than half the difference between the inner diameter of the pile foundation 1 and the outer diameter of the guide frame 2. During the process of implanting the pile foundation 1, when the pile foundation 1 is filled with soil, the ring width of the sealing ring plate 11 will affect the soil residue. When there is too much residual soil, it will affect the grouting effect.

[0042] The circumferential steel ring 21 and the sealing ring plate 11 are both provided with reinforcing ribs 22 on their lower sides to increase the load-bearing capacity and bending resistance of the circumferential steel ring 21 and the sealing ring plate 11.

[0043] The lower end of the guide plate 2 is provided with a guide plate 23, and the lower end of the guide plate 23 is provided with a circumferential plate 231, which can play a guiding role and achieve more precise positioning.

[0044] The installation process of this utility model is as follows: S1. The inner diameter of the sealing ring plate 11 is pre-matched with the outer diameter of the circumferential steel ring 21 on land to ensure a large overlap area. The sealing ring plate 11 is welded to the inner wall of the pile foundation 1, and its installation is located corresponding to the bottom end of the guide frame 2. S2. On land, weld the circumferential steel ring 21 to the bottom of the jacket 2; S3. On land, the capping sleeve 3 is fitted onto the guide frame 2 and welded. S4. Locate the installation point in the target sea area and implant the pile foundation 1; S5. After hoisting the overall structure of the guide frame 2 to the designated position, put the annular groove 311 on the capping sleeve 3 on the guide frame 2 onto the pile foundation 1 to complete the precise positioning. At this time, the sealing ring plate 11 abuts against the circumferential steel ring 21, so that a grouting space is formed between the guide frame 2 and the pile foundation 1. S6. Grout is injected into the grouting space through the grouting hole.

[0045] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A grouting component for connecting a guide frame to a steel pipe pile foundation, characterized in that, include: The pile foundation (1) has a grout sealing ring plate (11) inside; The guide frame (2) is located inside the pile foundation (1). A circumferential steel ring (21) is provided on the outer side wall of the guide frame (2). The lower side of the circumferential steel ring (21) abuts against the upper side of the sealing ring plate (11). The capping sleeve (3) has a through hole (31) and is sleeved on the guide frame (2) through the through hole (31). The lower side of the capping sleeve (3) abuts against the upper end of the pile foundation (1).

2. The grouting component for connecting the guide frame and steel pipe pile foundation according to claim 1, characterized in that: The capping sleeve (3) has an annular groove (311) on the side facing the pile foundation (1), and the upper end of the pile foundation (1) is embedded in the annular groove (311).

3. The grouting component for connecting the guide frame and the steel pipe pile foundation according to claim 1, characterized in that: The capping sleeve (3) is fixedly connected to the guide frame (2).

4. The grouting component for connecting the guide frame and the steel pipe pile foundation according to claim 1, characterized in that: The outer diameter of the circumferential steel ring (21) is larger than the inner diameter of the sealing ring plate (11).

5. A grouting component for connecting a guide frame and a steel pipe pile foundation according to claim 4, characterized in that: The difference between the outer diameter of the circumferential steel ring (21) and the inner diameter of the pile foundation (1) is less than the difference between the outer diameter of the circumferential steel ring (21) and the inner diameter of the sealing ring plate (11).

6. A grouting component for connecting a guide frame and a steel pipe pile foundation according to claim 2, characterized in that: The depth of the annular groove (311) is four-fifths of the height of the capping sleeve (3).

7. A grouting component for connecting a guide frame to a steel pipe pile foundation according to claim 1, characterized in that: The pile foundation (1) is provided with grouting holes (12) located between the capping sleeve (3) and the circumferential steel ring (21).

8. A grouting component for connecting a guide frame and a steel pipe pile foundation according to claim 7, characterized in that: The grouting hole (12) is provided in two parts and is arranged symmetrically.

9. A grouting component for connecting a guide frame and a steel pipe pile foundation according to claim 1, characterized in that: The circumferential steel ring (21) and the sealing ring plate (11) are both provided with reinforcing ribs (22) on their lower sides.

10. A grouting component for connecting a guide frame and a steel pipe pile foundation according to claim 1, characterized in that: The ring width of the sealing ring plate (11) is less than half the difference between the inner diameter of the pile foundation (1) and the outer diameter of the guide frame (2).

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