Offshore piling positioning frame
By using the stabilizing platform and steel sleeve structure of the offshore piling positioning frame, combined with GPS and total station, the problem of inaccurate positioning of steel pipe piles in offshore photovoltaic field construction was solved, achieving efficient and accurate pile foundation construction.
Patent Information
- Application Number
- CN202423167380.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-20
AI Technical Summary
In the current construction of offshore photovoltaic fields, the pile driving method is greatly affected by wind and waves, and the construction error is difficult to control, resulting in platform installation difficulties and low efficiency.
The offshore piling positioning frame is adopted, which includes a piling platform structure and multiple steel sleeve structures. The steel sleeves are used to position and guide the steel pipe piles. The position and verticality of the steel pipe piles are adjusted by GPS and total station, and the steel pipe piles are fixed by fasteners.
It improved the accuracy of steel pipe pile driving, reduced the number of times ships had to anchor, shortened the construction time, reduced the impact of wind and waves, and improved the convenience and accuracy of construction.
Smart Images
Figure CN223535707U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of marine photovoltaic technology, and in particular to a marine piling positioning frame. Background Technology
[0002] Offshore photovoltaic power plants are constructed using a design scheme that involves assembling trusses on land and hoisting them entirely at sea. This design requires high precision in the piles; if the relative error exceeds the pre-reserved gaps for the joints, the platform may not be able to be installed or the piles may tilt.
[0003] Currently, most piling methods use ship-mounted pile grippers, which are greatly affected by wind, waves, and ship stability. Construction errors are difficult to control, and each pile needs to be re-anchored for positioning, resulting in extremely low construction efficiency. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a marine piling positioning frame to address the above-mentioned problems.
[0005] The technical solution adopted in this utility model is: a marine piling positioning frame, comprising:
[0006] Stabilized pile platform structure;
[0007] Multiple steel sleeve structures are detachably connected to the corners of the pile stabilization platform structure. The steel sleeve structures can position and guide the sinking of the steel pipe piles.
[0008] A fixing element is provided on the steel sleeve structure, and the fixing element is used to fix the steel pipe piles inside the steel sleeve structure.
[0009] By using the above-mentioned technical means, the stabilizing platform structure is used as the main structure of the bottom positioning frame. The steel sleeve structure at the corner of the stabilizing platform structure is used to position multiple steel pipe piles at one time, so that the relative positions between multiple steel pipe piles remain constant. This makes it easier for the ship to drive multiple steel pipe piles after anchoring once, thus improving the accuracy of steel pipe pile driving.
[0010] In some embodiments, the steel sleeve structure includes an upper sleeve, a cage, and a lower sleeve. The cage, which is adapted to the diameter of the steel pipe pile, is connected to each of the four corners of the pile stabilization platform structure. The upper sleeve is bolted to the top of the cage, and the lower sleeve is bolted to the bottom of the cage.
[0011] In some embodiments, the upper part of the cage is provided with an outer ring stiffener, the lower part of the cage is provided with an inner ring stiffener, the bottom of the upper sleeve is provided with an outer ring stiffener, the outer ring stiffener at the bottom of the upper sleeve is bolted to the corresponding outer ring stiffener at the upper part of the cage, the top of the lower sleeve is provided with an outer ring stiffener, and the outer ring stiffener at the top of the lower sleeve is bolted to the corresponding inner ring stiffener at the lower part of the cage.
[0012] In some embodiments, a plurality of stiffening plates are provided between the sidewall of the upper sleeve and the outer ring stiffener at its bottom.
[0013] In some embodiments, the stabilizing platform structure includes steel beams, steel trusses, platform steel columns, and anti-sinking plates. The platform steel columns are provided at the four corners of the steel truss. The tops of the platform steel columns and the corners of the steel trusses cooperate to form an operation and rigging platform. The bottoms of the platform steel columns are connected to the anti-sinking plates. The outer walls of the platform steel columns are correspondingly connected to the steel sleeve structure. The anti-sinking plates are connected to each other via the steel beams.
[0014] In some embodiments, the platform steel column is provided with lifting lugs for hoisting.
[0015] In some embodiments, the platform steel columns are equipped with steel ladders.
[0016] In some embodiments, the steel truss is provided with a steel grating, and railings are provided on both sides of the steel grating to form a pedestrian walkway.
[0017] In some embodiments, the fixing element includes jacks, and a plurality of jacks are provided around the steel sleeve structure, which can lock and fix the steel pipe piles inside the steel sleeve structure.
[0018] In some embodiments, the planar position of the steel pipe pile is measured by a GPS component, and the verticality of the steel pipe pile is adjusted by a total station and a theodolite, so that the steel pipe pile is driven in a vertical state.
[0019] The beneficial effects of this utility model are:
[0020] 1. By partially submerging the pile stabilization platform structure and utilizing the steel sleeve structures at multiple corners of the platform to position and guide the steel pipe piles, a single platform can fix the positions of multiple steel pipe piles. This allows for continuous pile driving operations after a single anchoring operation, effectively reducing the relative error of piles on the same platform, improving installation accuracy, and significantly minimizing the impact of wind and waves. Simultaneously, it reduces the number of times the vessel needs to anchor, shortens construction time, and makes overall positioning more convenient. Attached Figure Description
[0021] Figure 1This is a schematic diagram of the planar structure of this application.
[0022] Figure 2 yes Figure 1 A schematic diagram of the structure along the AA direction.
[0023] Figure 3 yes Figure 1 A schematic diagram of the structure along the BB direction.
[0024] Figure 4 yes Figure 1 A schematic diagram of the structure along the CC direction.
[0025] Figure 5 This is an exploded structural diagram of the steel sleeve structure.
[0026] Figure 6 yes Figure 2 A schematic diagram of the structure along the DD direction.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Stabilized pile platform structure; 2. Steel sleeve structure; 3. Upper sleeve; 4. Cage; 5. Lower sleeve; 6. Outer ring stiffener; 7. Inner ring stiffener; 8. Stiffening plate; 9. Operating and rigging platform; 10. Steel beam; 11. Steel truss; 12. Platform steel column; 13. Anti-sinking plate; 14. Lifting lug; 15. Steel ladder; 16. Steel grating; 17. Handrail; 18. Jack.
[0029] This specification includes references to "one embodiment" or "implementation". The use of the phrase "in one embodiment" or "in an embodiment" does not necessarily refer to the same embodiment. Specific features, structures, or characteristics may be combined in any suitable manner consistent with this disclosure.
[0030] The term "comprising" is open-ended. As used in the appended claims, it does not exclude additional structures or steps. Detailed Implementation
[0031] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below with reference to specific embodiments.
[0032] Combination Figures 1 to 6 As shown, this embodiment is a marine piling positioning frame, including a piling platform structure 1, multiple steel sleeve structures 2, and fixing components. The multiple steel sleeve structures 2 are respectively connected to the corners of the piling platform structure 1, and the steel sleeve structures 2 can position and guide the sinking of the steel pipe piles. The steel sleeve structures 2 are equipped with fixing components for securing the steel pipe piles inside the steel sleeve structures 2. Specifically, in this embodiment, one piling platform structure 1 uses four steel sleeve structures 2.
[0033] In some implementation schemes, such as Figure 1 , 2 As shown in Figures 3 and 4, the stabilizing platform structure 1 adopts a bottom-mounted steel truss structure. The stabilizing platform structure 1 includes steel beams 10, steel trusses 11, platform steel columns 12, and anti-sinking plates 13. Platform steel columns 12 are provided at each of the four corners of the steel truss 11. The tops of the platform steel columns 12 and the corners of the steel truss 11 cooperate to form an operation and rigging platform 9. The bottom of the platform steel columns 12 is connected to the anti-sinking plates 13, and the outer walls of the platform steel columns 12 are correspondingly connected to steel sleeve structures 2. The anti-sinking plates 13 are connected to each other via steel beams 10.
[0034] Furthermore, the platform steel column 12 is equipped with lifting lugs 14 for hoisting, and the platform steel column 12 is also equipped with a steel ladder 15.
[0035] Furthermore, a steel grating 16 is provided on the steel truss 11, and railings 17 are provided on both sides of the steel grating 16 to form a pedestrian walkway.
[0036] Furthermore, in this embodiment, the pile stabilization platform structure 1 is suitable for steel pipe piles with a pile diameter of φ0.8m to 1.6m, the overall height of the platform is 13.5m, and the pile stabilization platform structure 1 weighs approximately 176t.
[0037] Furthermore, in this embodiment, the fixing component includes jacks 18, and multiple jacks 18 are arranged around the steel sleeve structure 2. The multiple jacks 18 can lock and fix the steel pipe pile inside the steel sleeve structure 2.
[0038] Furthermore, the GPS component can measure the planar position of the steel pipe piles to reduce the positional error between the steel pipe piles on the same offshore piling positioning frame. The total station and theodolite are used to adjust the verticality of the steel pipe piles so that the steel pipe piles can be driven in a vertical state.
[0039] In some implementation schemes, such as Figure 5 As shown, the steel sleeve structure 2 includes an upper sleeve 3, a cage 4, and a lower sleeve 5. The cage 4 can be detachably connected to all four corners of the pile stabilization platform structure 1. The cage 4 can be adapted to the pile diameter of the steel pipe pile. The cage 4 with different inner diameters can be replaced according to the pile diameter of the steel pipe pile. The upper sleeve 3 is fixed to the top of the cage 4 with bolts, and the lower sleeve 5 is fixed to the top of the cage 4 with bolts.
[0040] Furthermore, the upper part of the cage 4 is provided with an outer ring stiffener 6, the lower part of the cage 4 is provided with an inner ring stiffener 7, the bottom of the upper sleeve 3 is provided with an outer ring stiffener 6, the outer ring stiffener 6 at the bottom of the upper sleeve 3 is bolted to the corresponding outer ring stiffener 6 at the top of the cage 4, the top of the lower sleeve 5 is provided with an outer ring stiffener 6, and the outer ring stiffener 6 at the top of the lower sleeve 5 is bolted to the corresponding inner ring stiffener 7 at the bottom of the cage 4.
[0041] Furthermore, multiple stiffening plates 8 are provided at intervals between the side wall of the upper sleeve 3 and the outer ring stiffening 6 at its bottom.
[0042] Furthermore, in this embodiment, four jacks are provided around the top of the upper sleeve 3 and the middle of the cage 4 for auxiliary positioning.
[0043] Example 2:
[0044] This embodiment describes a method for using a marine piling positioning frame, including the following steps:
[0045] (1) Ship transportation of the stabilizing platform structure
[0046] In this embodiment, the stabilizing platform structure 1 is transported to the site by a 5000t transport barge, and the platform is transported vertically to the photovoltaic field.
[0047] (2) Erection of the pile-stabilized platform structure 1
[0048] In this embodiment, the main hook and main crane of the crane vessel are used. After the crane vessel is anchored and positioned, the transport barge slowly approaches the crane vessel from the bow towards its starboard side, securing the mooring lines. The crane vessel's crane is then positioned using the top lifting lug 14 of the stabilizing platform structure 1. When the transport barge approaches the point, the crane vessel's anchor line is appropriately loosened to ensure the transport barge passes smoothly.
[0049] Positioning is achieved through control points on the ship (the planar relationship between the center point of the machine position and the control points on the ship is calculated in advance). The main hook lifts the stabilizing platform, and the boom maintains a fixed angle. The hook is lowered so that the auxiliary stabilizing platform is submerged in seawater and sits on the bottom (reducing the platform's sway). Then, the position of the stabilizing platform is finely adjusted. The hook is lowered again until the wire rope is no longer under stress. The platform is observed to see if it continues to sink. Once the platform is stable and no longer sinking, the hook is lowered and the wire rope is removed, completing the platform placement.
[0050] (3) Lifting and erection of steel pipe piles
[0051] (4) Steel pipe pile entry point
[0052] The steel pipe pile is assisted by guy ropes to pull it into the steel sleeve structure 2, and the steel sleeve structure 2 limits the position of the steel pipe pile.
[0053] (5) The pile's own weight penetrates the soil
[0054] After all 18 hydraulic jacks at the jack position are engaged, the planar position of the steel pipe pile is measured using GPS control, and the verticality of the steel pipe pile is controlled using one total station and one theodolite. The 8 hydraulic jacks on the auxiliary platform are adjusted to secure the steel pipe pile, and the verticality deviation of the steel pipe pile is adjusted to not exceed 1.0‰.
[0055] Under its own weight, the steel pipe pile sinks to a certain depth below the mud surface and then stops sinking. After the steel pipe pile is confirmed to be stable, the crane vessel continues to lower the wire rope, ensuring that the wire rope is not under stress and does not detach. After observing the pile body for 15 minutes without any changes (if there are changes, continue to observe), the next construction procedure is then carried out.
[0056] (6) Hydraulic vibratory pile driving
[0057] The hydraulic hammer is lifted and fitted with a hammer. During the fitting process, it is essential to ensure that the centerlines of the hammer and the pile are aligned. Once the pile contacts the hammer, the hook is lowered. When the pile stops sinking, observe for 15 minutes to ensure that the pile's verticality and elevation remain unchanged (if any changes occur, continue observing) before proceeding to the next construction step.
[0058] While ensuring the verticality of the steel pipe pile, start the hydraulic vibratory hammer, arrange to measure and observe the pile body data, and adjust the pile body posture; after the pile body adjustment is completed and there is no change, continue driving the pile.
[0059] (7) Pile stabilization platform structure 1 Lifting and relocation position
[0060] The crane vessel lowers its main hook, and workers install slings at lifting lug 14 on the platform. The crane vessel then lifts the hook, hoisting the stabilizing platform and securing it with guy ropes. By rotating the boom and using the anchor to move the vessel, the stabilizing platform is moved to the next position, and construction of the next pile begins.
[0061] The implementation principle of a marine piling positioning frame is as follows:
[0062] By fixing the positions of four steel pipe piles on a single stabilizing platform structure, multiple piles can be driven at a time when the ship anchors. This facilitates the determination of the absolute and relative positions of the piles, improving the accuracy of pile positioning. On one hand, it eliminates relative errors among piles on the same platform, making the installation of the superstructure more accurate, improving the quality of pile foundation construction, and reducing construction deviations. On the other hand, it reduces the number of anchoring and positioning operations, significantly shortening construction time, and making overall positioning more accurate and convenient, while greatly reducing the impact of wind and waves.
[0063] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A marine piling positioning frame, characterized in that, include: Stabilized pile platform structure (1); Multiple steel sleeve structures (2) are detachably connected to the corners of the pile stabilization platform structure (1), and the steel sleeve structures (2) can position and guide the sinking of the steel pipe piles; A fixing element is provided on the steel sleeve structure (2), and the fixing element is used to fix the steel pipe pile inside the steel sleeve structure (2).
2. The offshore piling positioning frame according to claim 1, characterized in that: The steel sleeve structure (2) includes an upper sleeve (3), a cage (4), and a lower sleeve (5). The cage (4) that can be adapted to the diameter of the steel pipe pile is connected to each of the four corners of the pile stabilization platform structure (1). The upper sleeve (3) is fixed to the top of the cage (4) by bolts, and the lower sleeve (5) is fixed to the bottom of the cage (4) by bolts.
3. The offshore piling positioning frame according to claim 2, characterized in that: The upper part of the cage (4) is provided with an outer ring stiffener (6), the lower part of the cage (4) is provided with an inner ring stiffener (7), the bottom of the upper sleeve (3) is provided with an outer ring stiffener (6), the outer ring stiffener (6) at the bottom of the upper sleeve (3) is bolted to the outer ring stiffener (6) at the upper part of the cage (4), the top of the lower sleeve (5) is provided with an outer ring stiffener (6), the outer ring stiffener (6) at the top of the lower sleeve (5) is bolted to the inner ring stiffener (7) at the lower part of the cage (4).
4. A marine piling positioning frame according to claim 3, characterized in that: Multiple stiffening plates (8) are provided at intervals between the side wall of the upper sleeve (3) and the outer ring stiffener (6) at its bottom.
5. A marine piling positioning frame according to claim 1, characterized in that: The stabilizing platform structure (1) includes a steel beam (10), a steel truss (11), platform steel columns (12), and anti-sinking plates (13). The platform steel columns (12) are provided at the four corners of the steel truss (11). The top of the platform steel column (12) and the corner of the steel truss (11) cooperate to form an operation and rigging platform (9). The bottom of the platform steel column (12) is connected to the anti-sinking plate (13). The outer wall of the platform steel column (12) is correspondingly connected to the steel sleeve structure (2). The anti-sinking plates (13) are connected to each other through the steel beam (10).
6. A marine piling positioning frame according to claim 5, characterized in that: The platform steel column (12) is provided with lifting lugs (14) for hoisting.
7. A marine piling positioning frame according to claim 5, characterized in that: A steel ladder (15) is provided on the platform steel column (12).
8. A marine piling positioning frame according to claim 5, characterized in that: The steel truss (11) is provided with a steel grating (16), and railings (17) are provided on both sides of the steel grating (16) to form a pedestrian passage.
9. A marine piling positioning frame according to claim 1, characterized in that: The fixing component includes jacks (18), and multiple jacks (18) are provided on the steel sleeve structure (2). The multiple jacks (18) can lock and fix the steel pipe piles inside the steel sleeve structure (2).
10. A marine piling positioning frame according to claim 1, characterized in that: The planar position of the steel pipe pile is measured by a GPS component, and the verticality of the steel pipe pile is adjusted by a total station and a theodolite to ensure that the steel pipe pile is driven in a vertical state.