Deepwater jacket steel pile device

Abstract

The invention discloses a deepwater jacket steel pile device which is used for supporting and adjusting a steel pile and comprises a plurality of first buttresses and a second buttress, the first buttresses are arranged at intervals, each first buttress comprises a first support and a plurality of first adjusting parts, the first adjusting parts are arranged on the first supports, and the second adjusting parts are arranged on the second supports. The plurality of first adjusting pieces can be close to or far away from each other so as to lift or lower the supported steel pile; the second buttresses are arranged between any two adjacent first buttresses, each second buttress comprises a second support and a jacking mechanism arranged on the second support, the jacking mechanisms can abut against the middle positions of the steel piles, and the jacking mechanisms are used for adjusting the gravity center height of the steel piles. The first buttress achieves independent adjustment of the heights of the two ends of the steel pile through the multiple first adjusting pieces capable of getting close to or getting away from each other, so that lifting and leveling of the steel pile can be completed without depending on a crane, the service time of the crane is remarkably shortened, and the equipment utilization rate is increased.

Description

Technical Field

[0001] This invention belongs to the field of marine engineering construction technology, and particularly relates to a deep-water jacket steel pile device. Background Technology

[0002] Traditional methods for splicing steel piles for jacket structures typically involve on-land operations. Due to the lack of a complete platform for rotating the work platform, precise adjustments to the straightness and coaxiality of the circumferential welds cannot be achieved during the splicing process of segmented steel piles. Therefore, cranes are generally used to assemble the circumferential welds of two pile segments in the air. This traditional method has several drawbacks: First, the prolonged suspension and splicing of the cranes consumes significant crane resources, resulting in low crane utilization and high operating costs. Second, the time-consuming crane operation for splicing the circumferential welds significantly increases the construction cycle. Furthermore, a large crane operating area is required during the splicing process, occupying considerable space and restricting construction organization. Additionally, maintaining stability between the steel piles during crane suspension and splicing can easily lead to misalignment at the joints, affecting welding quality.

[0003] As my country's offshore oil and gas development continues to advance into deep waters, jacket structures are being used more and more widely. Due to the increase in various offshore engineering projects, the demand for resources such as cranes and swivel platforms has also increased significantly. In many cases, it is impossible to simultaneously meet the crane and swivel platform requirements of multiple projects. When steel piles are large, heavy, and long, the existing crane-based splicing method not only occupies a large area and has low splicing efficiency, but also faces a shortage of crane resources, making it difficult to meet construction needs in a timely manner. Therefore, there is an urgent need for an improved steel pile splicing process to achieve rapid alignment and splicing of steel pile segments on land without relying on cranes, ensuring docking accuracy, improving construction efficiency, and reducing construction costs. Therefore, there is an urgent need to design a deep-water jacket steel pile device to solve the problems mentioned above. Summary of the Invention

[0004] To address the technical problem mentioned in the background art where uneven force on one side of the locking mechanism can easily cause torsional deformation and limited tensile strength, a deep-water jacket steel pile device is provided.

[0005] To achieve the above objectives, the specific technical solution of the deep-water jacket steel pile device of the present invention is as follows: A deep-water jacket steel pile device for supporting and adjusting steel piles, comprising: The first support pier is provided in multiple ways, and the multiple first support piers are spaced apart. The first support pier includes a first support and multiple first adjustment components. The multiple first adjustment components are all provided on the first support. The multiple first adjustment components can move closer to each other or further away from each other to raise or lower the supported steel pile. The second support is located between any two adjacent first supports. The second support includes a second bearing and a lifting mechanism located on the second bearing. The lifting mechanism is able to support the steel pile at the middle position and is used to adjust the height of the steel pile's center of gravity.

[0006] Furthermore, the first support also includes a sliding component, which is connected to the first adjusting member and the first support respectively. The number of sliding components is the same as the number of the first adjusting members and they are set in a one-to-one correspondence.

[0007] Furthermore, the sliding assembly includes a slider portion and a guide rail portion, one of which is connected to the first adjusting member and the other is connected to the first support, and the slider portion and the guide rail portion slide relative to each other.

[0008] Furthermore, the sliding assembly also includes a clamping member that passes through the guide rail portion to fix the slider portion and the guide rail portion relative to each other.

[0009] Furthermore, there are two sliding components and two first adjusting components.

[0010] Furthermore, the second support also includes an adjustment component, which is mounted on the second support and is used to adjust the position of the lifting mechanism.

[0011] Furthermore, the adjustment assembly includes two second adjustment members configured as telescopic cylinders, with the output end of the telescopic cylinders hinged to the outer wall of the lifting mechanism.

[0012] Furthermore, the second support also includes an adjusting support, which is used to support the steel pile at its midpoint.

[0013] Furthermore, the adjusting pier includes a support plate and a support plate. The support plate is arc-shaped and is used to support the steel piles. The support plate is located on the outer edge of the support plate and is used to improve the strength of the adjusting pier.

[0014] Furthermore, the lifting mechanism includes a lifting hydraulic cylinder and a self-locking nut. The self-locking nut is used to lock the output end of the lifting hydraulic cylinder, and the output end of the stationary hydraulic cylinder is held against the bottom of the support plate, which is used to raise or lower the height of the steel pile through the support plate.

[0015] The deep-water jacket steel pile device of the present invention has the following advantages: the first support pier achieves independent adjustment of the height of both ends of the steel pile through multiple first adjustment components that can move closer or further apart from each other, thereby enabling the lifting and leveling of the steel pile without relying on a crane, significantly reducing crane usage time and improving equipment utilization; multiple first supports piers are arranged at intervals to form a stable support system, effectively distributing the weight of the steel pile, avoiding excessive local stress, and improving the overall load-bearing safety; the second support pier is equipped with a lifting mechanism that can act on the middle position of the steel pile to adjust the height of the steel pile's center of gravity, which helps to fine-tune the posture of the steel pile during the extension process and ensure the coaxiality of the two sections of the steel pile and the alignment accuracy of the circumferential weld; the overall structure realizes precise segmented docking of steel piles under the condition of "no crane on land", greatly shortening the construction cycle and reducing site and machinery costs, and is particularly suitable for the efficient assembly operation of large and heavy deep-water jacket steel piles. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the deep-water jacket steel pile device of the present invention; Figure 2 This is a schematic diagram of the structure of the first support pier of the present invention; Figure 3 This is a schematic diagram of the structure of the second support pier of the present invention; Figure 4 This is a schematic diagram of the structure of the adjustable support of the present invention.

[0017] Explanation of markings in the diagram: 1. First support; 11. First support; 12. First adjusting component; 13. Sliding assembly; 131. Slider section; 132. Guide rail section; 133. Clamping component; 2. Second support pier; 21. Second support; 22. Lifting mechanism; 221. Lifting hydraulic cylinder; 222. Self-locking nut; 23. Adjusting assembly; 231. Second adjusting component; 24. Adjusting support pier; 241. Support plate; 242. Support plate; 3. Steel piles. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0022] The following is a reference to the appendix. Figure 1 To be continued Figure 4 This invention describes a deep-water jacket steel pile device.

[0023] This embodiment provides a deep-water jacket steel pile device. Figure 1 A schematic diagram of a deep-water jacket steel pile device; Figure 2 This is a structural schematic diagram of the first pier; as shown below. Figure 1 and Figure 2As shown, the deep-water jacket steel pile device is used to support and adjust the steel piles 3. The deep-water jacket steel pile device includes a first support 1 and a second support 2. Multiple first supports 1 are provided and are spaced apart. Each first support 1 includes a first support 11 and multiple first adjusting members 12. The multiple first adjusting members 2 are all provided on the first support 11 and can move closer or further away from each other to raise or lower the supported steel piles 3. The second support 2 is provided between any adjacent first supports 1. The second support 2 includes a second support 21 and a lifting mechanism 22 provided on the second support 21. The lifting mechanism 22 can abut against the middle position of the steel piles 3 and is used to adjust the center height of the steel piles 3.

[0024] Understandably, the first support pier 1 achieves independent height adjustment of both ends of the steel pile 3 through multiple first adjustment components 12 that can move closer or further apart from each other. This allows the steel pile 3 to be lifted and leveled without relying on a crane, significantly reducing crane usage time and improving equipment utilization. Multiple first support piers 1 are arranged at intervals to form a stable support system, effectively distributing the weight of the steel pile 3, avoiding excessive local stress, and improving overall load-bearing safety. The second support pier 2 is equipped with a lifting mechanism 22, which can act on the middle position of the steel pile 3 to adjust the height of the center of gravity of the steel pile 3. This helps to fine-tune the posture of the steel pile 3 during the extension process, ensuring the coaxiality of the two sections of the steel pile 3 and the alignment accuracy of the circumferential weld. The overall structure realizes precise segmented docking of the steel pile 3 under the condition of "no crane on land", greatly shortening the construction cycle and reducing site and machinery costs. It is particularly suitable for the efficient assembly operation of large and heavy deep-water jacket steel piles 3.

[0025] Furthermore, such as Figure 1 and Figure 2 As shown, the first support 1 also includes a sliding component 13, which is connected to the adjusting component 231 and the first support 11 respectively. The number of sliding components 13 is the same as the number of adjusting components 231 and they are set in a one-to-one correspondence.

[0026] Understandably, the sliding component 13 provides guidance and displacement channels for the adjusting component 231, making its movement smoother and more precise, and preventing deviation or jamming during the adjustment process; it enables the adjusting component 231 to extend or move along a predetermined trajectory, enhancing the system's controllability and ensuring the horizontal stability of the steel pile 3 during the lifting and lowering process; it improves the adjustment response speed and repeatability accuracy, which is conducive to quickly completing multi-point coordinated leveling operations and improving construction efficiency; the modular design of the structure facilitates later maintenance and replacement, extending the service life of the device.

[0027] Furthermore, such as Figure 1 and Figure 2As shown, the sliding assembly 13 includes a slider portion 131 and a guide rail portion 132. One of the slider portion 131 and the guide rail portion 132 is connected to the adjusting member 12, and the other is connected to the first support 11. The slider portion 131 and the guide rail portion 132 slide relative to each other.

[0028] Understandably, the standard slider-rail structure has the advantages of high rigidity, low friction, and long service life, making it suitable for heavy-duty conditions. The rail constrains the slider's movement direction, ensuring that the adjusting component 12 moves only in the set direction, thus avoiding structural damage caused by lateral forces. Mature structural forms such as linear rails or dovetail grooves can be selected, which are technically mature, easy to install, and run smoothly. It supports high-frequency and repeated adjustment operations, meets the needs of multiple fine adjustments on site, and improves the success rate of docking.

[0029] Furthermore, such as Figure 1 and Figure 2 As shown, the sliding assembly 13 also includes a clamping member 133, which passes through the guide rail portion 132 and is used to fix the slider portion 131 and the guide rail portion 132 relative to each other.

[0030] Understandably, after the steel pile 3 is adjusted into position, the sliding component 13 can be locked by the clamping part 133 to prevent accidental slippage caused by external vibration or load changes. The locking mechanism improves the static stiffness and anti-disturbance capability of the entire support system, ensuring that the steel pile 3 maintains a stable posture during welding. The self-locking function can maintain the position unchanged even when the hydraulic or pneumatic source is disconnected, improving safety redundancy. It is particularly suitable for offshore wind and waves or heavy welding operation scenarios to prevent "drift" from causing misalignment defects.

[0031] Furthermore, both the sliding component 13 and the adjusting component 12 are provided in twos.

[0032] Understandably, the symmetrical arrangement of the two points ensures that the forces on both ends of the first support 1 are balanced, avoiding torsion or tilting caused by unilateral eccentric loading; the two adjusting components 12 work together and can be adjusted independently or synchronously to adjust the pitch angle of the steel pile 3, further improving the attitude control capability; for the cylindrical steel pile 3, the two-point support is more in line with its geometric characteristics, the contact stress is evenly distributed, and the risk of local crushing is reduced; the system has a simple structure but complete functions, taking into account both performance and economy, and is suitable for mass promotion and application.

[0033] Figure 3 This is a structural schematic diagram of the second support pier; Figure 4 A schematic diagram of the structure for adjusting the support pier.

[0034] Furthermore, such as Figure 1 , 3 and Figure 4 As shown, the second support 2 also includes an adjustment component 23, which is mounted on the second support 21 and is used to adjust the position of the lifting mechanism 22.

[0035] Understandably, the adjustment component 23 allows the lifting mechanism 22 to adjust its installation position horizontally or spatially to accommodate steel piles 3 of different lengths, diameters, or center of gravity positions; it flexibly matches the intermediate support requirements of various specifications of steel piles 3, improving the versatility and reusability of the device; it can dynamically adjust the support points according to the actual center of gravity position to avoid excessive deflection caused by excessive cantilever length; and it supports the special support requirements of asymmetric structure steel piles 3, expanding application scenarios.

[0036] Furthermore, such as Figure 1 , 3 and Figure 4 As shown, the adjustment assembly 23 includes two second adjustment members 231, which are configured as telescopic cylinders, and the output end of the telescopic cylinder is hinged to the outer wall of the lifting mechanism 22.

[0037] Understandably, telescopic cylinders offer fast response and high control precision, making them suitable for automated or semi-automatic adjustment; hinged connections allow for certain angular deviations, absorbing assembly errors and thermal deformation, and reducing structural internal stress; synchronous dual-cylinder drive enables translational or rotational adjustment of the lifting mechanism 22, achieving complex spatial positioning; the pneumatic system is easy to clean and maintain, making it suitable for use in marine engineering environments; and combined with sensors, closed-loop control can be achieved, further enhancing the level of intelligence.

[0038] Furthermore, such as Figure 1 , 3 and Figure 4 As shown, the second support 2 also includes an adjusting support 24, which is used to support the steel pile 3 at the middle position.

[0039] Understandably, the adjusting support 24, as a direct load-bearing component, transmits the lifting force to the steel pile 3 body, avoiding stress concentration damage to the pipe wall; when used in conjunction with the lifting mechanism 22, it forms a "power-bearing" separation structure with clear functional division and a more reasonable structure; it can adjust its position together with the lifting mechanism 22 to realize the dynamic migration of the support point and adapt to the changing center of gravity working conditions; it enhances the overall rigidity and local bearing capacity of the intermediate support area.

[0040] Furthermore, such as Figure 1 , 3 and Figure 4 As shown, the adjustable support pier 24 includes a support plate 241 and a support plate 242. The support plate 241 is arc-shaped and is used to support the steel pile 3. The support plate 242 is located on the outer edge of the support plate 241 and is used to improve the strength of the adjustable support pier 24.

[0041] Understandably, the arc-shaped support plate 241 fits well with the outer surface of the steel pile 3, increasing the contact area, reducing the pressure per unit area, and preventing crushing or deformation; it matches common round tube structures, has strong adaptability, and does not require frequent replacement of parts; the support plate 242 is set on the outer edge of the support plate 241, which acts as a stiffening rib, significantly improving the bending stiffness and buckling resistance of the support plate 241; the overall structure is lightweight while having high strength, and has high material utilization efficiency; the curvature can be customized according to the curvature of the steel pile 3 to achieve "personalized" fitting support.

[0042] Furthermore, such as Figure 1 and Figure 3 As shown, the lifting mechanism 22 lifts the hydraulic cylinder 221 and the self-locking nut 222. The self-locking nut 222 is used to lock the output end of the lifting hydraulic cylinder 221. The output end of the stationary hydraulic cylinder abuts against the bottom of the support plate 242 and is used to raise or lower the height of the steel pile 3 through the support plate 242.

[0043] Understandably, the hydraulic cylinder provides a powerful and stable lifting force, suitable for lifting heavy-duty steel piles 3; the self-locking nut 222 can mechanically lock the piston rod after reaching the target height, so it will not fall even if the hydraulic system fails, greatly improving safety; the dual protection mechanism of "hydraulic drive + mechanical self-locking" not only meets the requirements of rapid adjustment but also ensures long-term steady-state support; the output end acts on the bottom of the support plate 242, and the force transmission path is clear and short, reducing the additional bending moment caused by the leverage effect; it supports long-term pressure-holding welding operations without the need for continuous oil supply, making it energy-saving and reliable.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A deep-water jacket steel pile device for supporting and adjusting steel piles, characterized in that, The utility model relates to a steel pile lifting device, which comprises: a first supporting pier, a plurality of first supporting piers are arranged, and the first supporting piers are arranged at intervals, the first supporting pier comprises a first support and a plurality of first adjusting members, the plurality of first adjusting members are arranged on the first support, and the plurality of first adjusting members can move close to each other or move away from each other to raise or lower the supported steel pile; a second supporting pier is arranged between any adjacent first supporting piers, the second supporting pier comprises a second support and a jacking mechanism arranged on the second support, the jacking mechanism can abut the middle position of the steel pile, and the jacking mechanism is used for adjusting the height of the gravity center of the steel pile.

2. A deep water jacketed steel pile apparatus as claimed in claim 1, wherein, The first supporting pier further comprises a sliding assembly, the sliding assembly is connected with the first adjusting member and the first support respectively, the number of the sliding assembly is the same as that of the first adjusting member and is arranged one by one.

3. A deep water jacketed steel pile installation according to claim 2, characterised in that, The sliding assembly comprises a sliding block part and a guide rail part, one of the sliding block part and the guide rail part is connected with the first adjusting member, and the other is connected with the first support, and the sliding block part and the guide rail part slide relative to each other.

4. A deep water jacketed steel pile installation according to claim 3, characterised in that, The sliding assembly further comprises a clamping member, the clamping member is arranged in the guide rail part and is used for fixing the sliding block part and the guide rail part relative to each other.

5. The deep water jacketed steel pile apparatus of claim 2, wherein, The sliding assembly and the first adjusting member are both provided with two.

6. The deep water jacketed steel pile apparatus of claim 1, wherein, The second supporting pier further comprises an adjusting assembly, the adjusting assembly is arranged on the second support and is used for adjusting the position of the jacking mechanism.

7. A deep water jacketed steel pile installation according to claim 6, characterised in that, The adjusting assembly comprises two second adjusting members, the second adjusting members are configured as telescopic cylinders, and the output ends of the telescopic cylinders are hinged to the outer wall of the jacking mechanism.

8. A deep water jacketed steel pile arrangement according to any of claims 1, 6 or 7, characterised in that, The second supporting pier further comprises an adjusting supporting pier, the adjusting supporting pier is used for abutting the middle position of the steel pile.

9. A deep water jacketed steel pile installation according to claim 8, characterised in that, The adjusting supporting pier comprises a supporting plate and a supporting plate, the supporting plate is arranged in a circular arc shape and is used for supporting the steel pile; the supporting plate is arranged at the outer edge of the supporting plate and is used for improving the strength of the adjusting supporting pier.

10. A deep water jacketed steel pile installation according to claim 9, characterised in that, The jacking mechanism comprises a hydraulic cylinder and a self-locking nut, the self-locking nut is used for locking the output end of the jacking hydraulic cylinder, the output end of the jacking hydraulic cylinder abuts the bottom of the supporting plate and is used for raising or lowering the height of the steel pile through the supporting plate.

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