Steel pipe pile limiting guide plate in inclined pile sleeve of offshore jacket
By designing the limit guide plate and guide group in the offshore conduit frame, the problem of steel pipe piles deviating from the center when inserted into the main sleeve is solved, and a uniform thickness and better support effect after grouting is achieved.
Patent Information
- Application Number
- CN202421269122.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The steel pipe piles of existing offshore booster stations are prone to deviate from the center when inserted into the main sleeve, resulting in uneven thickness after grouting, affecting the support effect.
A limit guide plate in the oblique pile sleeve of the offshore conduit frame is designed, including the main sleeve, the guide seat and the guide group. There are limiting plates and guide cavities in the guide seat. The guide group consists of multiple guide plates and is distributed along the inner wall of the main sleeve to guide and limit the movement of the steel pipe piles.
Through the design of the guide seat and guide group, the steel pipe piles can be inserted into the center of the main sleeve more accurately, ensuring uniform thickness after grouting, improving the support effect of the steel pipe piles, and reducing damage to the inner wall of the main sleeve.
Smart Images
Figure CN222456088U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of limiting guide plates, and in particular to a limiting guide plate for a steel pipe pile in an inclined pile sleeve of an offshore jacket. Background Art
[0002] With the rapid development of the offshore wind power industry, more and more projects have been approved and started, and my country's offshore wind power has gradually entered a new stage of large-scale construction. The scale of offshore wind farms has gradually increased, and the distance from the shore has become farther and farther. As an essential facility for the development of offshore wind farms, offshore substations have been widely used.
[0003] The offshore booster station is generally divided into an upper block and a lower support structure, and is the boost, distribution and control center of the offshore wind farm. The upper block is generally equipped with various electrical equipment such as the main transformer, high and low voltage distribution cabinets, GIS, and communication relay equipment. It is used to collect the electricity generated by all offshore wind turbines, boost the voltage through the main transformer, and then send it to the land through a high-voltage submarine cable. The lower support structure is a facility that fixes the entire upper structure of the offshore booster station on the seabed. In addition to bearing the entire weight of the upper structure, it also needs to withstand external forces such as wind, waves, and currents.
[0004] Existing offshore booster stations usually use an inclined pile sleeve type conductor frame as the lower supporting structure. The conductor frame includes a main sleeve. A steel pipe pile is inserted into the main sleeve, and then grouting is performed in the main sleeve to fix the steel pipe pile in the main sleeve. Then the upper assembly is fixed to the steel pipe pile. In the process of inserting the steel pipe pile into the main sleeve, since the diameter of the main sleeve is larger than that of the steel pipe pile, it is difficult for the steel pipe pile to be located in the center of the main sleeve. The steel pipe pile will be in a deviated state in the main sleeve, which will result in uneven grouting thickness between the steel pipe pile and the main sleeve after subsequent grouting, making the steel pipe pile more prone to instability and shaking, thereby affecting the supporting effect of the steel pipe pile. Summary of the invention
[0005] In order to make the steel pipe pile located at the center of the main sleeve, the present application provides a steel pipe pile limiting guide plate in the inclined pile sleeve of an offshore jacket.
[0006] The present application provides a steel pipe pile limiting guide plate in an offshore jacket inclined pile sleeve, which adopts the following technical solution:
[0007] A limiting guide plate for a steel pipe pile in an offshore jacket inclined pile sleeve comprises a main sleeve, a guide seat is inserted into the top of the main sleeve, the guide seat comprises a limiting plate, the limiting plate is arranged in the main sleeve cavity, a guide cavity is provided inside the limiting plate, the guide cavity diameter is consistent with the diameter of the steel pipe pile, a guide group is arranged on the inner wall of the main sleeve, the guide group comprises a plurality of guide plates, the plurality of guide plates are distributed along the circumference of the inner wall of the main sleeve, the outermost ends of the plurality of guide plates are enclosed to form a storage cavity, and the guide cavity, the storage cavity and the internal cavity of the main sleeve are coaxial.
[0008] By adopting the above technical scheme, the steel pipe pile enters the guide cavity, moves along the inner wall of the limit plate, and then moves into the storage cavity, moves along the storage cavity, and finally completes the insertion of the steel pipe pile into the main sleeve. The guide plate plays a guiding role, and the steel pipe pile moves along the storage cavity. During the process of inserting the steel pipe pile into the main sleeve, the deviation of the movement of the steel pipe pile is reduced, so that the steel pipe pile is located in the center of the main sleeve, so that the grouting thickness between the steel pipe pile and the main sleeve is uniform after grouting, so that the steel pipe pile can better support the upper block, and it can also reduce the damage of the steel pipe pile to the packer at the bottom of the inner wall of the main sleeve.
[0009] The limit plate can limit the movement of the steel pipe pile. In the process of the steel pipe pile moving from the top surface of the main sleeve to the topmost guide plate, the deviation of the movement of the steel pipe pile is reduced, and the situation that the bottom end of the steel pipe pile is placed on the top of the guide plate and the outer wall of the steel pipe pile is placed on the top surface of the main sleeve is reduced, which makes the steel pipe pile stuck and difficult to move. Under the action of the limit plate, the movement of the steel pipe pile can be smoother, and the efficiency of inserting the steel pipe pile into the main sleeve is further improved. In addition, the connection between the guide seat and the main sleeve is plug-in. When the steel pipe pile is inserted into the main sleeve, the removal of the guide seat is relatively convenient.
[0010] Preferably, the guide plate is an arc plate.
[0011] By adopting the above technical solution, the guide plate is an arc plate, which makes the guide plate smoother, reduces the friction between the guide plate and the steel pipe column, and thus reduces the damage of the guide plate to the steel pipe pile.
[0012] Preferably, the guide seat includes a connecting plate, the connecting plate has a mounting groove inside, the top of the main sleeve is inserted into the mounting groove, and one side of the limiting plate is fixed to the side wall of the connecting plate.
[0013] By adopting the above technical solution, the top of the main sleeve is inserted into the installation groove, which facilitates the installation of the guide seat and the main sleeve. At the same time, when the steel pipe pile is inserted into the main sleeve, the operator applies an upward force to the guide seat to separate the guide seat from the main sleeve and complete the disassembly.
[0014] Preferably, the guide seat further includes a guide plate, the bottom surface of the guide plate is fixed to the top surface of the limiting plate, and the guide plate is a semi-funnel-shaped plate.
[0015] By adopting the above technical solution, after the crane lifts one end of the steel pipe pile, the crane drives the steel pipe pile to move downward, and the bottom of the steel pipe pile contacts the inner wall of the guide plate. Then, the steel pipe pile moves downward along the inner wall of the guide plate. Under the action of the guide plate, the movement of the steel pipe pile can be guided. At the same time, the opening at the top of the guide plate is larger than the opening at the top of the main sleeve, so that the steel pipe pile can enter the cavity of the guide plate more easily, thereby reducing the time for the bottom end of the steel pipe pile to align and enter the main sleeve, and improving the efficiency of inserting the steel pipe pile into the main sleeve.
[0016] Preferably, there are multiple guide groups, and the multiple guide groups are distributed along the long side direction of the inner wall of the main sleeve.
[0017] By adopting the above technical solution, there are multiple multi-directional groups, which can better guide the movement of the steel pipe piles and further reduce the deviation of the steel pipe piles when moving downward.
[0018] Preferably, the limiting plate is a semicircular plate.
[0019] By adopting the above technical solution, the limit plate is a semicircular plate, so that the limit plate can guide the movement of the steel pipe pile. At the same time, half of the steel pipe column is located in the guiding cavity, and the cavity where the other half of the steel pipe pile is located is larger, thereby reducing the situation where the steel pipe column moves from the guide plate to the limit plate and gets stuck.
[0020] Preferably, there are four main sleeves, and a horizontal frame is fixed between the four main sleeves.
[0021] By adopting the above technical solution, under the action of the horizontal frame, the four main sleeves support each other, making the four main sleeves more stable.
[0022] Preferably, an inclined frame is fixed between two adjacent main sleeves.
[0023] By adopting the above technical solution, under the action of the inclined frame, the stability between the four main sleeves is further improved, and the instability and shaking of the main sleeves are reduced.
[0024] In summary, the present application includes at least one of the following beneficial technical effects:
[0025] 1. The steel pipe pile enters the guide cavity, moves along the inner wall of the limit plate, and then moves into the storage cavity, moves along the storage cavity, and finally completes the insertion of the steel pipe pile into the main sleeve. The guide plate plays a guiding role, and the steel pipe pile moves along the storage cavity. During the process of inserting the steel pipe pile into the main sleeve, the deviation of the steel pipe pile movement is reduced, and the steel pipe pile is located in the center of the main sleeve, so that the grouting thickness between the steel pipe pile and the main sleeve is uniform after grouting, so that the steel pipe pile can better support the upper block, and can also reduce the damage of the steel pipe pile to the packer at the bottom of the inner wall of the main sleeve.
[0026] 2. After the crane lifts one end of the steel pipe pile, the crane drives the steel pipe pile to move downward, and the bottom of the steel pipe pile contacts the inner wall of the guide plate. Then the steel pipe pile moves downward along the inner wall of the guide plate. Under the action of the guide plate, the movement of the steel pipe pile can be guided. At the same time, the opening at the top of the guide plate is larger than the opening at the top of the main sleeve, making it easier for the steel pipe pile to enter the cavity of the guide plate, thereby reducing the time for the bottom end of the steel pipe pile to align and enter the main sleeve, and improving the efficiency of inserting the steel pipe pile into the main sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0028] Figure 2 It is a schematic diagram of the local structure of an embodiment of the present application.
[0029] Explanation of the reference numerals: 1. catheter frame; 11. main sleeve; 12. horizontal frame; 13. oblique frame; 131. oblique support rod; 2. guide plate; 21. storage cavity; 3. guide seat; 31. connecting plate; 32. limit plate; 321. guide cavity; 33. guide plate. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1-2 This application is described in further detail.
[0031] The embodiment of the present application discloses a steel pipe pile limiting guide plate in an inclined pile sleeve of an offshore jacket.
[0032] Reference Figure 1A steel pipe pile limiting guide plate in an offshore conductor frame inclined pile sleeve includes a conductor frame 1, and the conductor frame 1 includes a main sleeve 11, a horizontal frame 12 and an inclined frame 13. In the embodiment of the present application, there are four main sleeves 11, and the four main sleeves 11 are distributed in a rectangular shape. The main sleeves 11 are inclined, and the inclination direction of the main sleeves 11 is inclined outward from top to bottom, so that the rectangle formed at the top of the four main sleeves 11 is larger than the rectangle formed at the bottom. The horizontal frame 12 is welded between the four main sleeves 11, and the horizontal frame 12 connects two adjacent main sleeves 11. There are two horizontal frames 12, and the two horizontal frames 12 are distributed at the top and bottom of the main sleeve 11. Under the action of the horizontal frame 12, the four main sleeves 11 support each other.
[0033] The inclined frame 13 includes two inclined struts 131, which are cross-fixed. The tops of the two inclined struts 131 are respectively welded to the tops of the main sleeves 11 adjacent thereto, and the bottoms of the two inclined struts 131 are respectively welded to the bottoms of the main sleeves 11 adjacent thereto. The inclined frame 13 is located between the two horizontal frames 12. There are four inclined frames 13, which are distributed on the four sides of the horizontal frame 12, so that the top of one main sleeve 11 is supported by two inclined struts 131, and the main sleeve 11 and the two inclined struts 131 form a triangle. One main sleeve 11, one inclined strut 131, and one side of the horizontal frame 12 form a triangle. The triangle is stable, so that the structure of the catheter frame 1 is more stable, and the instability and shaking of the catheter frame 1 are reduced.
[0034] Reference Figure 2 A guide group is provided on the inner wall of the main sleeve 11, and the guide group includes a plurality of guide plates 2. One side of the guide plate 2 is welded to the inner wall of the main sleeve 11. The plurality of guide plates 2 are distributed along the circumference of the inner wall of the main sleeve 11. The long side direction of the guide plate 2 is parallel to the long side of the main sleeve 11. In the embodiment of the present application, the guide plate 2 is an arc plate, and the outer wall of the guide plate 2 is an arc surface. The outermost ends of the plurality of guide plates 2 enclose a circular storage cavity 21. The diameter of the circular storage cavity 21 is consistent with the diameter of the steel pipe pile. There are a plurality of guide groups, and the plurality of guide groups are distributed along the long side direction of the inner wall of the main sleeve 11.
[0035] Under the action of the guide group, the guide plate 2 plays a guiding role, and the arc plate can reduce the damage to the steel pipe pile. The steel pipe pile moves along the storage cavity 21. During the process of inserting the steel pipe pile into the main sleeve 11, the deviation of the steel pipe pile movement is reduced, so that the steel pipe pile is located at the center of the main sleeve 11, so that the grouting thickness between the steel pipe pile and the main sleeve 11 is uniform after grouting, so that the steel pipe pile can better support the upper block.
[0036] Reference Figure 2A guide seat 3 is provided at the top of the main sleeve 11, and the guide seat 3 includes a connecting plate 31, a limiting plate 32 and a guide plate 33. The connecting plate 31 is an inverted "concave" plate, and a mounting groove is provided inside the connecting plate 31. The top of the main sleeve 11 is inserted into the mounting groove. One side of the limiting plate 32 is welded to the side wall of the connecting plate 31. The limiting plate 32 is a semicircular plate, and a guiding cavity 321 is provided inside the limiting plate 32. The guiding cavity 321 is a semicircular cavity, and the diameter of the guiding cavity 321 is consistent with the diameter of the steel pipe pile. The guiding cavity 321, the storage cavity 21, and the internal cavity of the main sleeve 11 are coaxial. The bottom surface of the guide plate 33 is welded to the top surface of the limiting plate 32. The guide plate 33 is a semi-funnel-shaped plate, and the top diameter of the guide plate 33 is larger than the bottom diameter.
[0037] After the crane lifts one end of the steel pipe pile, the crane drives the steel pipe pile to move downward, and the bottom of the steel pipe pile contacts the inner wall of the guide plate 33, and then the steel pipe pile moves downward along the inner wall of the guide plate 33. Under the action of the guide plate 33, the movement of the steel pipe pile can be guided. At the same time, the opening at the top of the guide plate 33 is larger than the opening at the top of the main sleeve 11, making it easier for the steel pipe pile to enter the cavity of the guide plate 33, thereby reducing the time for the bottom end of the steel pipe pile to align and enter the main sleeve 11, and improving the efficiency of inserting the steel pipe pile into the main sleeve 11. The guide plate 33 guides the steel pipe pile into the guide cavity 321, and the steel pipe pile moves along the inner wall of the limit plate 32. Then the steel pipe pile moves into the storage cavity 21, and the steel pipe pile moves along the storage cavity 21. Finally, the steel pipe pile is inserted into the main sleeve 11, and the damage of the steel pipe pile to the packer at the bottom of the inner wall of the main sleeve 11 can also be reduced.
[0038] The limit plate 32 can limit the movement of the steel pipe pile. In the process of the steel pipe pile moving from the top surface of the main sleeve 11 to the topmost guide plate 2, the deviation of the movement of the steel pipe pile is reduced, and the situation that the bottom end of the steel pipe pile is placed on the top of the guide plate 2 and the outer wall of the steel pipe pile is placed on the top surface of the main sleeve 11 is reduced, which makes the steel pipe pile stuck and difficult to move. Under the action of the limit plate 32, the movement of the steel pipe pile can be smoother, and the efficiency of inserting the steel pipe pile into the main sleeve 11 is further improved.
[0039] The above are all preferred embodiments of the present application. The embodiments are only explanations of the present application and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A steel pipe pile limiting guide plate in an offshore jacket inclined pile sleeve, characterized in that: The invention comprises a main sleeve (11), wherein a guide seat (3) is inserted at the top of the main sleeve (11), wherein the guide seat (3) comprises a limit plate (32), wherein the limit plate (32) is arranged in the cavity of the main sleeve (11), wherein a guide cavity (321) is provided inside the limit plate (32), wherein the diameter of the guide cavity (321) is consistent with the diameter of the steel pipe pile, wherein a guide group is arranged on the inner wall of the main sleeve (11), wherein the guide group comprises a plurality of guide plates (2), wherein the plurality of guide plates (2) are distributed along the circumference of the inner wall of the main sleeve (11), wherein the outermost ends of the plurality of guide plates (2) enclose a storage cavity (21), and wherein the guide cavity (321), the storage cavity (21), and the inner cavity of the main sleeve (11) are coaxial.
2. The steel pipe pile limiting guide plate in the offshore jacket inclined pile sleeve according to claim 1, characterized in that: The guide plate (2) is an arc plate.
3. The steel pipe pile limiting guide plate in the offshore jacket inclined pile sleeve according to claim 1, characterized in that: The guide seat (3) comprises a connecting plate (31), the connecting plate (31) has a mounting groove inside, the top of the main sleeve (11) is inserted into the mounting groove, and one side of the limiting plate (32) is fixed to the side wall of the connecting plate (31).
4. The steel pipe pile limiting guide plate in the offshore jacket inclined pile sleeve according to claim 1, characterized in that: The guide seat (3) also includes a guide plate (33), the bottom surface of the guide plate (33) is fixed to the top surface of the limit plate (32), and the guide plate (33) is a semi-funnel-shaped plate.
5. The steel pipe pile limiting guide plate in the offshore jacket inclined pile sleeve according to claim 1, characterized in that: There are a plurality of guide groups, and the plurality of guide groups are distributed along the long side direction of the inner wall of the main sleeve (11).
6. The steel pipe pile limiting guide plate in the offshore jacket inclined pile sleeve according to claim 1, characterized in that: The limiting plate (32) is a semicircular plate.
7. The steel pipe pile limiting guide plate in the offshore jacket inclined pile sleeve according to claim 1, characterized in that: There are four main sleeves (11), and a horizontal frame (12) is fixed between the four main sleeves (11).
8. The steel pipe pile limiting guide plate in the offshore jacket inclined pile sleeve according to claim 7, characterized in that: An inclined frame (13) is fixed between two adjacent main sleeves (11).