Construction method of deep sea suction anchor locking frame

Abstract

The invention discloses a construction method of a deep sea suction anchor locking frame. The construction method comprises the following steps: welding the box body to form the main beam; assembling a backstop end plate on the backstop wing plate to form a backstop; holes are formed in the formwork, and a plurality of pairs of bolts are inserted into the holes to be matched; a main body structure of the stop block is welded, a rubber pad is pasted to the end of the main body structure, and a hole is formed in a bottom plate of the stop block; a connecting beam is welded between the two main beams to form a main frame, a plug pin main plate, a rotating shaft inserting plate, a stopping block and a rotating shaft are arranged on the main frame in a spot welding mode, and a lifting lug is installed on the main frame to form a locking frame; the locking frame is horizontally lifted, and the locking frame is horizontally matched with the plet socket; the locking frame is turned over, and trepanning is conducted through the formwork; the stop block is installed on the locking frame, sanding and paint spraying are carried out, and the anode is installed after paint spraying. The method is applied to the technical field of ocean engineering.

Description

Technical Field

[0001] The present invention relates to the technical field of marine engineering, and in particular to a method for constructing a deep-sea suction anchor locking frame. Background Art

[0002] Currently, the wind power industry boasts vast potential for growth, with offshore wind power experiencing rapid development. A trend has emerged, with offshore wind power expanding from nearshore to deepwater and offshore. Traditional onshore and offshore jacket systems are neither practical nor cost-effective. Suction pile foundations are suitable for areas with sandy or soft clay seabeds, but they require high technical expertise and offer significant potential for cost reduction. Therefore, there is significant potential for the development of suction pile jacket marine engineering equipment.

[0003] Suction anchors are primarily used in monopile foundations or jacket foundations of offshore wind farms. Using the principle of negative pressure, they embed themselves into the seabed sediment layer, achieving stable fixation of the wind turbine tower and unit. During the installation process of the suction anchor, the locking frame ensures the relative position accuracy of the suction anchor components during lifting, transportation, and sinking, preventing component displacement or deformation due to external forces. Furthermore, after the suction anchor is embedded in the seabed sediment layer, the locking frame further enhances the interaction between the suction anchor and the surrounding sediment, improving anchoring stability. Furthermore, the locking frame can adapt to complex marine environmental conditions, such as dynamic loads caused by waves, tides, and currents, ensuring the reliability and durability of the suction anchor during long-term operation. The design of the locking frame typically needs to consider factors such as the suction anchor's size, shape, installation depth, and seabed geological conditions. By optimizing the locking frame's structural form and connection method, the overall performance of the suction anchor system can be effectively improved, installation risks can be reduced, and service life can be extended, thus providing important guarantees for the safe and stable operation of offshore wind power equipment. Therefore, there is an urgent need for a construction method for a deep-sea suction anchor locking frame that can effectively control welding deformation, improve construction accuracy and reduce project costs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a method for constructing a deep-sea suction anchor locking frame that can effectively control welding deformation, improve construction accuracy and reduce project costs.

[0005] The technical solution adopted by the present invention is: the present invention comprises the following steps:

[0006] Step S100, main beam prefabrication: assembling the main beam ribs, main beam webs, main beam upper flanges, main beam end ribs, and main beam bottom plates to form a box body, and welding the box body to form the main beam;

[0007] Step S200, stopper prefabrication: assembling the stopper wing plates, and assembling the stopper end plates on the stopper wing plates to form a stopper;

[0008] Step S300, prefabrication of drilling templates: drilling holes in the templates, placing two templates on top of each other with their front faces facing up, and inserting multiple pairs of pins into the holes for fit;

[0009] Step S400, prefabrication of the block: welding the main structure of the block, attaching rubber pads to the ends of the main structure, and drilling holes in the block bottom plate;

[0010] Step S500, prefabrication of the main frame: Place the main beams on the support structure, level the main beams, adjust the spacing and levelness between the two main beams, weld connecting beams between the two main beams to form the main frame, spot weld the latch main plate, the rotary shaft insertion plate, the stopper, and the rotary shaft to the main frame, and install lifting lugs on the main frame to form a locking frame;

[0011] Step S600, adapting the plet socket: lifting the locking frame horizontally, and adapting the locking frame to the plet socket horizontally; wherein, when the locking frame is lowered onto the plet socket, the position of the rotating shaft, the latch main board and the stopper need to be adjusted to adapt to the plet socket, the contact situation of the locking frame and the plet socket is measured, and the position on the locking frame is locked by welding the rotating shaft, the stopper and the latch main board; lifting the locking frame, making the locking frame horizontally oblique relative to the plet socket, and adapting it to the plet socket, wherein, when the locking frame is lowered to the plet socket, the latch main board needs to be able to be inserted into the locking base of the plet socket, and the latch of the plet socket can be inserted into the latch main board; lifting the locking frame vertically by the lifting ear, making the locking frame vertical relative to the plet socket, and adapting it to the plet socket, so that the rotating shaft falls into the plet socket, rotating and tilting the locking frame and checking the adaptation;

[0012] Step S700, turning over the main beam and making holes: when the main frame is prefabricated and does not meet the conditions for adapting to the plet socket, it can be turned over and made holes first, wherein the locking frame is turned over and holes are made through the template;

[0013] Step S800, painting: Install the block on the locking frame, sandblast and paint, and install the anode after painting.

[0014] Furthermore, in step S100, it includes the following steps:

[0015] S101. Position the main beam reinforcement plate and assemble it to the main beam bottom plate, increasing the length of the main beam bottom plate by 0.2% of the welding shrinkage;

[0016] S102, assembling the main beam web to the main beam bottom plate to serve as the main load-bearing part of the main beam;

[0017] S103, assembling the main beam upper wing plate to the main beam bottom plate and welding;

[0018] S104, assembling the main beam end ribs at both ends of the main beam to form a box body;

[0019] S105, welding the box body.

[0020] Furthermore, in step S200, it includes the following steps:

[0021] S201, assembling the stop wing plate;

[0022] S202, assembling the stopper end plate on the stopper wing plate to form a stopper, and integrally welding the entire stopper.

[0023] Furthermore, in step S300, it includes the following steps:

[0024] S301. Machine the template to make holes and clearly mark the front and back sides and directions on the template;

[0025] S302, overlapping the two templates with their front faces facing upward, and inserting multiple pairs of pins into the holes for fitting; ensuring that the pins can freely penetrate the holes and that the clearance between the pins and the holes is appropriate;

[0026] S303, after the two templates are overlapped and preliminarily fitted with latches, one of the templates is moved in one direction to a distance equivalent to a 50 mm offset of the other template, and the fitting is continued using latches;

[0027] S304. Move one of the templates again in the same or opposite direction to offset the other template by 100 mm, and continue to use the pins for adaptation.

[0028] Furthermore, in step S400, it includes the following steps:

[0029] S401, installing the stopper web and the stopper rib on the stopper bottom plate, wherein a 0.2% welding shrinkage allowance is reserved in the length direction of the stopper web and the stopper bottom plate;

[0030] S402, splicing the stopper wing plate to match the stopper web plate and the stopper rib plate;

[0031] S403, installing the bent plate on the stopper web and welding it to form the main structure of the stopper;

[0032] S404, installing and welding the block end plate to the main structure;

[0033] S405: After the main structure passes inspection, the block is turned over and a hole is drilled on the block bottom plate;

[0034] S406. Prepare a set of machined hole templates based on the design dimensions of the stopper base plate; the templates must be identical in size to the stopper base plate;

[0035] S407, overlap the template with the block bottom plate, ensure that the front of the template faces outward, and position the template;

[0036] S408. Punch holes according to the template, ensuring accurate hole positions and consistent hole diameters.

[0037] S409: After the drilling is completed, the block is sanded;

[0038] S410. Install the rubber pad onto the stopper.

[0039] Furthermore, in step S500, it includes the following steps:

[0040] S501. According to the straight construction method, the main beam is placed on the supporting structure so that the main beam is in a horizontal state. The height of the supporting structure needs to be adjusted to ensure that the main beam reaches the horizontality required by the design.

[0041] S502: After the main beams are placed and leveled, a connecting beam is placed between the two main beams, and the spacing and levelness between the two main beams are ensured, and then the connecting beam is welded to form a main frame;

[0042] S503, spot welding the latch mainboard to the main frame;

[0043] S504, spot welding the rotary shaft insert plate to the main frame;

[0044] S505, spot welding the stopper and the rotary shaft to the main frame;

[0045] S506. Install the lifting lugs on the main frame.

[0046] Furthermore, in step S600, it includes the following steps:

[0047] S601, lifting the locking frame horizontally;

[0048] S602: Horizontally align the locking frame with the plet socket. When the locking frame is lowered onto the plet socket, the positions of the rotary shaft, the latch mainboard, and the stopper need to be adjusted to align with the plet socket. The contact between the locking frame and the plet socket is measured to ensure three-point force contact.

[0049] S603, welding the rotary shaft, the stopper, and the latch main plate to lock the position on the locking frame;

[0050] S604, lifting the locking frame, angling the locking frame horizontally relative to the plet socket, and fitting the locking frame to the plet socket. When the locking frame is lowered to the plet socket, the latch mainboard must be able to be inserted into the locking base of the plet socket, and the latch of the plet socket must be able to be inserted into the latch mainboard;

[0051] S605. Lift the locking frame vertically through the lifting lugs, make the locking frame perpendicular to the plet socket, and adapt it to the plet socket so that the rotary shaft falls into the plet socket, rotate and tilt the locking frame and check the adaptation.

[0052] Furthermore, in step S700, it includes the following steps:

[0053] S701. Turn over and drill holes in the main beam: When the main frame is prefabricated and does not have the conditions to adapt to the plet socket, you can turn it over and drill holes first; among them, fifty holes with the same spacing need to be drilled in each row on the main beam, prepare the drilling template, and position and drill the main beam three times. When drilling, keep the template close to the main beam, and make sure that the front and back sides and direction of the template meet the requirements.

[0054] Furthermore, in step S800, it includes the following steps:

[0055] S801. Install the block on the locking frame, sandblast and paint. After sandblasting, use tape to protect the area where the main beam opening needs to be installed with the gasket. After painting, install the anode.

[0056] The beneficial effects of the present invention are:

[0057] In view of the shortcomings of the existing technology, the present invention provides a construction method for a deep-sea suction anchor locking frame suitable for 1,500 meters. The construction method not only takes into account the welding space, but also closely combines the structural characteristics of the locking frame. By optimizing the installation sequence of parts, reasonably reserving the welding shrinkage of material cutting, and cleverly arranging temporary reinforcement measures, it effectively prevents and controls welding deformation, greatly reduces the consumption of temporary reinforcement materials and welding materials, further reduces project costs, and ensures that the construction accuracy of the locking frame fully meets the strict requirements of deep-water adaptation. The present invention has the advantages of being able to effectively control welding deformation, improve construction accuracy and reduce project costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0059] Figure 1 It is a schematic flow chart of the construction method of the present invention;

[0060] Figure 2 It is a schematic diagram of the three-dimensional structure of the locking frame of the present invention;

[0061] Figure 3 This is a schematic diagram of the three-dimensional structure of the main beam of the present invention during prefabrication;

[0062] Figure 4 It is a schematic diagram of the three-dimensional structure of the stopper of the present invention;

[0063] Figure 5 It is a schematic diagram of the three-dimensional structure of the template of the present invention;

[0064] Figure 6 It is a schematic diagram of the three-dimensional structure of the template of the present invention during misalignment adaptation;

[0065] Figure 7 This is a schematic diagram of the three-dimensional structure of the stopper of the present invention Figure 1 ;

[0066] Figure 8 This is a schematic diagram of the three-dimensional structure of the stopper of the present invention Figure 2 ;

[0067] Figure 9 It is a schematic diagram of the three-dimensional structure of the stopper and the template of the present invention;

[0068] Figure 10 It is a schematic diagram of the three-dimensional structure of the main frame of the present invention;

[0069] Figure 11 It is a schematic diagram of the three-dimensional structure of the locking frame and the plet socket of the present invention;

[0070] Figure 12 It is a schematic diagram of the three-dimensional structure of the locking frame and the plet socket of the present invention when adapted;

[0071] Figure 13 It is a schematic diagram of the three-dimensional structure of the locking frame of the present invention when it is turned over and drilled.

[0072] The reference numerals are as follows:

[0073] 1. Main beam; 2. Main beam rib plate; 3. Main beam web plate; 4. Main beam upper wing plate; 5. Main beam end rib plate; 6. Main beam bottom plate; 7. Stop; 8. Stop wing plate; 9. Stop end plate; 10. Template; 11. Latch; 12. Stop block; 13. Rubber pad; 15. Stop block bottom plate; 16. Main frame; 17. Support structure; 18. Connecting beam; 19. Latch main plate; 20. Rotary shaft insertion plate; 21. Rotary shaft; 22. Lifting ear; 23. Locking frame; 25. Plet socket; 26. Locking base; 27. Socket latch; 28. Stop block web plate; 29. Stop block rib plate; 30. Stop block wing plate; 31. Bending plate; 32. Stop block end plate; 33. Template.

[0074] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0075] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0076] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, clockwise, counterclockwise, etc., are only used to explain the relative position relationship and movement status of the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0077] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0078] like Figures 1 to 2 As shown, in this embodiment, the present invention includes the following steps:

[0079] Step S100, prefabrication of the main beam 1: assembling the main beam stiffener 2, the main beam web 3, the main beam upper flange 4, the main beam end stiffener 5 and the main beam bottom plate 6 to form a box body, and welding the box body to form the main beam 1;

[0080] Step S200, prefabrication of the stopper 7: assembling the stopper wing plate 8, and assembling the stopper end plate 9 on the stopper wing plate 8 to form the stopper 7;

[0081] Step S300, prefabrication of the drilling template 10: drilling holes in the template 10, overlapping two templates 10 with their front faces facing upward, and inserting multiple pairs of pins 11 into the holes for adaptation;

[0082] Specifically, first, insert multiple pins 11 into the openings of the template 10, and ensure that all of them can penetrate freely; then, horizontally offset the two templates 10 by 50 mm and then insert the pins 11 again to adapt; then, horizontally offset the two templates 10 by 100 mm and then insert the pins 11 again to adapt;

[0083] Step S400, prefabrication of the stopper 12: welding the main structure of the stopper 12, pasting the rubber pad 13 on the end of the main structure, and drilling a hole in the stopper bottom plate 15;

[0084] Step S500, prefabrication of the main frame 16: Place the main beams 1 on the support structure 17 and level the main beams 1. Adjust the spacing and levelness between the two main beams 1. Weld the connecting beam 18 between the two main beams 1 to form the main frame 16. Spot weld the latch main plate 19, the rotary shaft insertion plate 20, the stopper 7, and the rotary shaft 21 to the main frame 16. Install the lifting lugs 22 on the main frame 16 to form the locking frame 23. Specifically, after placing the main beams 1, adjust the spacing and levelness, then weld the connecting beam 18. Measure again after welding.

[0085] Step S600, adapting the plet socket 25: hoisting the locking frame 23 horizontally, and adapting the locking frame 23 to the plet socket 25 horizontally; wherein, when the locking frame 23 is lowered onto the plet socket 25, it is necessary to adjust the position of the rotary shaft 21, the latch main board 19 and the stopper 7 to adapt to the plet socket 25, measure the contact between the locking frame 23 and the plet socket 25, and lock the position on the locking frame 23 by welding the rotary shaft 21, the stopper 7 and the latch main board 19; hoisting the locking frame 23, and adjusting the locking frame 23 relative to the plet The t socket 25 is at a horizontal angle and is adapted to the plet socket 25. When the locking frame 23 is lowered to the plet socket 25, the latch mainboard 19 must be able to be inserted into the locking base 26 of the plet socket 25, and the socket latch 27 of the plet socket 25 must be able to be inserted into the latch mainboard 19. The locking frame 23 is lifted vertically by the lifting ear 22, and the locking frame 23 is made perpendicular to the plet socket 25 and adapted to the plet socket 25, so that the rotary shaft 21 falls into the plet socket 25, and the locking frame 23 is rotated and tilted to check the adaptation.

[0086] Step S700, turning over the main beam 1 to make holes: When the main frame 16 is prefabricated and does not meet the conditions for adapting to the plet socket 25, it can be turned over and made holes first, wherein the locking frame 23 is turned over and a hole is made through the template 10;

[0087] Step S800, painting: Install the block 12 on the locking frame 23, sandblast and paint, and then install the anode after painting. Specifically, after sandblasting, use tape to protect the area where the gasket is to be installed in the main beam 1 opening to prevent the paint from affecting the conductivity. After painting, install the anode.

[0088] Compared with the shortcomings of the existing technology, in the present invention, the construction method focuses on improving construction efficiency. Through careful planning and organization, the connection between each construction link is closer, avoiding unnecessary waiting and repetitive work, thereby significantly shortening the construction period; at the same time, the implementation of the method also reduces material waste and labor costs, and achieves a substantial saving in project construction costs. Therefore, the construction method shows significant advantages in improving construction efficiency, ensuring project quality and cost control, and provides strong technical support for the rapid and high-quality construction of the suction pile locking frame, so that the present invention has the advantages of improving construction accuracy and reducing project costs.

[0089] like Figure 3 As shown, in some embodiments, in step S100, it includes the following steps:

[0090] S101, positioning the main beam rib plate 2 and assembling it onto the main beam bottom plate 6, increasing the length of the main beam bottom plate 6 by 0.2% of the welding shrinkage;

[0091] Specifically, by increasing the welding shrinkage of the main beam bottom plate 6 by 0.2% in the length direction, the length shrinkage caused by the welding stress when it is assembled with the main beam side plates can be avoided.

[0092] S102, assembling the main beam web 3 onto the main beam bottom plate 6 to serve as the main load-bearing part of the main beam 1;

[0093] Specifically, the main beam web 3, as the main load-bearing part of the main beam 1, needs to be assembled strictly according to the design drawings to ensure that the connection between the main beam web 3 and the main beam stiffener 2 is firm and reliable.

[0094] S103, assembling the main beam upper wing plate 4 to the main beam bottom plate 6 and welding them;

[0095] Specifically, high-quality welding technology and materials need to be used to ensure that the weld strength meets the design requirements; after welding is completed, a comprehensive quality inspection is required to ensure that the welding quality meets the standards.

[0096] S104, assembling the main beam end ribs 5 at both ends of the main beam 1 to form a box body;

[0097] Specifically, it is necessary to ensure that it is tightly connected to other parts of the main beam 1 to enhance the overall stability of the main beam 1.

[0098] S105, welding the box body.

[0099] like Figure 4 As shown, in some embodiments, in step S200, it includes the following steps:

[0100] S201, assembling the stop wing plate 8;

[0101] Specifically, the assembly must be carried out strictly in accordance with the design drawings to ensure that the stop wing plate 8 is accurately positioned and firmly connected.

[0102] S202 , assembling the stopper end plate 9 on the stopper wing plate 8 to form the stopper 7 , and welding the entire stopper 7 as a whole.

[0103] Specifically, after the stop wing plate 8 is assembled, the stop end plate 9 is assembled. The connection between the stop end plate 9 and the stop wing plate 8 must be firm and reliable. After the assembly is completed, the entire stop 7 needs to be welded as a whole to enhance its structural strength and stability.

[0104] like Figure 5 and Figure 6 As shown, in some embodiments, in step S300, it includes the following steps:

[0105] S301, machining and opening holes in the template 10, and clearly marking the front and back sides and directions on the template 10;

[0106] Specifically, before drilling a hole, carefully check the design drawings to ensure that the hole's location, size, and shape fully meet the design requirements. Also, to facilitate subsequent installation and use, clearly mark the front and back sides and the direction on the template 10. When marking, use a tool such as a marking pen to ensure the marking is clear and not easily detached.

[0107] S302, overlapping the two templates 10 with their front faces facing upward, and inserting multiple pairs of pins 11 into the openings for fitting; ensuring that the pins 11 can freely penetrate the holes and that the clearance between the pins 11 and the holes is appropriate;

[0108] Specifically, seven pairs of pins 11 are used for fitting. Pins 11 should be selected based on the hole diameter and depth, ensuring they can penetrate freely and with an appropriate clearance between them—neither too tight nor too loose. During the fitting process, each pin 11 should be individually checked to ensure it fits smoothly without any obstruction.

[0109] S303, after the two templates 10 are overlapped and preliminarily fitted with the latches 11, one of the templates 10 is moved in one direction to be equivalent to a 50 mm offset of the other template 10, and the fitting is continued using the latches 11;

[0110] S304, one of the templates 10 is moved again in the same or opposite direction to be equivalent to the other template 10 being displaced by 100 mm, and the latch 11 is continued to be used for adaptation.

[0111] As can be seen from the above content, by performing misalignment adaptation on the two templates 10, the adaptation of the pins 11 of the templates 10 at different positions can be verified to ensure that the templates 10 can maintain good fit at different positions.

[0112] like Figures 7 to 9 As shown, in some embodiments, in step S400, it includes the following steps:

[0113] S401, installing the stopper web 28 and the stopper rib 29 on the stopper base 15, wherein a welding shrinkage of 0.2% is reserved in the length direction of the stopper web 28 and the stopper base 15;

[0114] Specifically, a 0.2% welding shrinkage is reserved in the length direction of the stopper web 28 and the stopper bottom plate 15 to avoid length shrinkage caused by welding stress.

[0115] S402, splicing the stopper wing plate 30 to match the stopper web plate 28 and the stopper rib plate 29;

[0116] S403, installing the bent plate 31 on the stopper web 28 and welding them to form the main structure of the stopper 12;

[0117] S404, installing and welding the block end plate 32 to the main structure;

[0118] Specifically, it is necessary to ensure that the weld between the stopper end plate 32 and the main structure is smooth and free of defects.

[0119] S405: After the main structure passes inspection, the block 12 is turned over and a hole is drilled in the block base plate 15;

[0120] Specifically, when turning over the stopper 12, care should be taken to protect the completed welding portion to avoid damage.

[0121] S406. Prepare a set of machined hole templates 33 according to the design dimensions of the stopper base plate 15; wherein the templates 33 must be completely consistent with the dimensions of the stopper base plate 15;

[0122] Specifically, the accuracy of the drilling position is ensured by providing a template 33 that is completely consistent with the size of the block base plate 15 .

[0123] S407. Align the template 33 with the stopper base 15, ensuring that the front of the template 33 faces outward, and position the template 33. Specifically, overlap the prepared template 33 with the stopper base 15, ensuring that the front of the template 33 faces outward, and position it according to the directions of points a and b in the figure. When overlapping, be sure to check the gap between the template 33 and the stopper base 15 to ensure there is no deviation.

[0124] S408, punch holes according to template 33, ensuring that the hole positions are accurate and the hole diameters are consistent;

[0125] S409: After the drilling is completed, the block 12 is sanded;

[0126] Specifically, the block 12 is sandblasted to remove dirt and oxide layer on the surface. During the painting process, it is necessary to protect the adhesive area and the conductive area of the gasket to prevent the paint from contaminating or affecting these areas.

[0127] S410 , installing the rubber pad 13 onto the stopper 12 .

[0128] Specifically, during installation, it is necessary to ensure that the rubber pad 13 and the stopper 12 fit tightly and without any gaps; at the same time, it is also necessary to protect the rubber pad 13 from damage and contamination.

[0129] like Figure 10 As shown, in some embodiments, in step S500, it includes the following steps:

[0130] S501. According to the positive construction method, the main beam 1 is placed on the support structure 17 so that the main beam 1 is in a horizontal state. The height of the support structure 17 needs to be adjusted to ensure that the main beam 1 reaches the horizontality required by the design.

[0131] Specifically, the positive construction method is adopted, that is, the supporting structure 17 is first laid on the ground, and then the main beam 1 is placed on it, and is accurately leveled using measuring tools such as a spirit level; during the leveling process, the height of the supporting structure 17 needs to be continuously adjusted until the main beam 1 reaches the horizontality required by the design.

[0132] S502: After the main beams 1 are placed and leveled, the connecting beam 18 is placed between the two main beams 1, and the spacing and levelness between the two main beams 1 are ensured. The connecting beam 18 is then welded to form the main frame 16.

[0133] Specifically, the spacing and levelness between components must be strictly controlled to ensure the stability and load-bearing capacity of the entire frame structure. After assembly, welding equipment is used to weld the connecting beams 18 together, firmly connecting the components. After welding, the entire frame structure is measured again using measuring tools to ensure that no deformation or errors were introduced during the welding process.

[0134] S503, spot welding the latch main board 19 to the main frame 16;

[0135] S504, spot welding the rotary shaft insert plate 20 to the main frame 16;

[0136] S505, spot welding the stopper 7 and the rotary shaft 21 to the main frame 16;

[0137] S506 , installing the lifting lugs 22 on the main frame 16 .

[0138] like Figure 11 and Figure 12 As shown, in some embodiments, in step S600, it includes the following steps:

[0139] S601, lifting the locking frame 23 horizontally;

[0140] S602: Horizontally align the locking frame 23 with the plet socket 25. When the locking frame 23 is lowered onto the plet socket 25, the positions of the rotary shaft 21, the latch mainboard 19, and the stopper 7 are adjusted to align with the plet socket 25. The contact between the locking frame 23 and the plet socket 25 is measured to ensure three-point force contact.

[0141] Specifically, when the locking frame 23 lands on the plet socket 25, the rotating shaft 21, the latch mainboard 19, and the stopper 7 need to be adjusted, and the contact between the locking frame 23 and the plet socket 25 needs to be measured. The vertical, horizontal, and axial spacing of the ends of the rotating shaft 21 must conform to the drawings, the latch mainboard 19 must be able to be inserted into the locking base 26 of the plet socket 25, and the socket latch 27 of the plet socket 25 must be able to be inserted into the latch mainboard 19; the contact condition of the four end points of the locking frame 23 (at least three points of force contact must be ensured, the gap between the suspended points is ≤ tolerance, and the horizontal and vertical spacing between the stoppers 7 must be controlled well);

[0142] S603, welding the rotary shaft 21, the stopper 7 and the latch main plate 19 to lock them in position on the locking frame 23;

[0143] S604: Lift the locking frame 23, adjust the locking frame 23 to a horizontal angle relative to the plet socket 25, and fit it into the plet socket 25. When the locking frame 23 is lowered to the plet socket 25, the latch mainboard 19 must be able to be inserted into the locking base 26 of the plet socket 25, and the socket latch 27 of the plet socket 25 must be able to be inserted into the latch mainboard 19.

[0144] S605. Lift the locking frame 23 vertically through the lifting ear 22, make the locking frame 23 perpendicular to the plet socket 25, and adapt it to the plet socket 25, so that the rotating shaft 21 falls into the plet socket 25, rotate and tilt the locking frame 23 and check the adaptation.

[0145] like Figure 13 As shown, in some embodiments, in step S700, it includes the following steps:

[0146] S701. Turn over and drill holes in the main beam 1: When the main frame 16 is prefabricated and does not meet the conditions for adapting to the plet socket 25, it can be turned over and drilled first; among them, fifty holes with the same spacing need to be drilled in each row on the main beam 1, and a drilling template 10 is prepared. The main beam 1 is positioned and drilled three times. When drilling, the template 10 is pressed tightly against the main beam 1, and it is noted that the front and back sides and the direction of the template 10 meet the requirements.

[0147] Specifically, after turning over the main beam 1, the handle is installed on the main beam 1, and the bottom of the main beam 1 is drilled for the first time through the template 10; the second drilling area needs to overlap with the first drilling area by at least three pairs of holes, and the same applies to the third drilling area; in addition, after the drilling is completed, it is necessary to test whether the block 12 can be used to install bolts at any drilling area position.

[0148] In some embodiments, in step S800, it includes the following steps:

[0149] S801. Install the block 12 on the locking frame 23, sandblast and paint it. After sandblasting, use tape to protect the area where the gasket is to be installed in the opening of the main beam 1. After painting, install the anode.

[0150] Specifically, the anode is a core component of the suction anchor locking frame anti-corrosion system. It protects the locking frame 23 from seawater corrosion by sacrificing itself, ensuring its long-term stability and safety in a 1,500-meter deep-sea environment.

[0151] It should be noted that the construction method described in detail details a complex series of processes, starting with the installation of the main beam 1, followed by the gradual construction of the connecting beam 18, the precise placement of the block 12 and the stop 7, the stable assembly of the rotating shaft, and the meticulous installation of key components such as the main pinhole. These steps not only cover the main stages of construction, but also clearly define specific technical requirements for each part to ensure that the construction quality and dimensional accuracy of the suction pile socket meet the strict design standards.

[0152] Furthermore, through the implementation of this construction method, every step of the construction process is effectively standardized and guided, thus greatly reducing construction errors caused by improper operation or chaotic processes. This not only ensures the overall integrity and structural stability of the project, but also significantly improves the professionalism and reliability of the construction.

[0153] This construction method also focuses on improving construction efficiency. Through meticulous planning and organization, the various construction links are more closely connected, avoiding unnecessary waiting and duplication of work, thereby significantly shortening the construction period. Furthermore, the implementation of this construction method reduces material waste and labor costs, achieving significant savings in project construction costs. Overall, this innovative construction method demonstrates significant advantages in improving construction efficiency, ensuring project quality, and controlling costs, providing strong technical support for the rapid and high-quality construction of suction pile locking frames.

[0154] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A method for constructing a deep-sea suction anchor locking frame, characterized by: It includes the following steps: Step S100, main beam prefabrication: assembling the main beam ribs, main beam webs, main beam upper flanges, main beam end ribs, and main beam bottom plates to form a box body, and welding the box body to form the main beam; Step S200, stopper prefabrication: assembling the stopper wing plates, and assembling the stopper end plates on the stopper wing plates to form a stopper; Step S300, prefabrication of drilling templates: drilling holes in the templates, placing two templates on top of each other with their front faces facing up, and inserting multiple pairs of pins into the holes for fit; Step S400, prefabrication of the block: welding the main structure of the block, attaching rubber pads to the ends of the main structure, and drilling holes in the block bottom plate; Step S500, prefabrication of the main frame: Place the main beams on the support structure, level the main beams, adjust the spacing and levelness between the two main beams, weld connecting beams between the two main beams to form the main frame, spot weld the latch main plate, the rotary shaft insertion plate, the stopper, and the rotary shaft to the main frame, and install lifting lugs on the main frame to form a locking frame; Step S600, adapting the plet socket: lifting the locking frame horizontally, and adapting the locking frame to the plet socket horizontally; wherein, when the locking frame is lowered onto the plet socket, the position of the rotating shaft, the latch main board and the stopper need to be adjusted to adapt to the plet socket, the contact situation of the locking frame and the plet socket is measured, and the position on the locking frame is locked by welding the rotating shaft, the stopper and the latch main board; lifting the locking frame, making the locking frame horizontally oblique relative to the plet socket, and adapting it to the plet socket, wherein, when the locking frame is lowered to the plet socket, the latch main board needs to be able to be inserted into the locking base of the plet socket, and the latch of the plet socket can be inserted into the latch main board; lifting the locking frame vertically by the lifting ear, making the locking frame vertical relative to the plet socket, and adapting it to the plet socket, so that the rotating shaft falls into the plet socket, rotating and tilting the locking frame and checking the adaptation; Step S700, turning over the main beam and making holes: when the main frame is prefabricated and does not meet the conditions for adapting to the plet socket, it can be turned over and made holes first, wherein the locking frame is turned over and holes are made through the template; Step S800, painting: Install the block on the locking frame, sandblast and paint, and install the anode after painting.

2. The method for constructing a deep-sea suction anchor locking frame according to claim 1, characterized in that: In step S100, it includes the following steps: S101. Position the main beam reinforcement plate and assemble it to the main beam bottom plate, increasing the length of the main beam bottom plate by 0.2% of the welding shrinkage; S102, assembling the main beam web to the main beam bottom plate to serve as the main load-bearing part of the main beam; S103, assembling the main beam upper wing plate to the main beam bottom plate and welding; S104, assembling the main beam end ribs at both ends of the main beam to form a box body; S105: Welding the box body.

3. The method for constructing a deep-sea suction anchor locking frame according to claim 1, characterized in that: In step S200, it includes the following steps: S201, assembling the stop wing plate; S202, assembling the stopper end plate on the stopper wing plate to form a stopper, and integrally welding the entire stopper.

4. The method for constructing a deep-sea suction anchor locking frame according to claim 1, characterized in that: In step S300, it includes the following steps: S301. Machine the template to make holes and clearly mark the front and back sides and directions on the template; S302, overlapping the two templates with their front faces facing upward, and inserting multiple pairs of pins into the holes for fitting; ensuring that the pins can freely penetrate the holes and that the clearance between the pins and the holes is appropriate; S303, after the two templates are overlapped and preliminarily fitted with latches, one of the templates is moved in one direction to a distance equivalent to a 50 mm offset of the other template, and the fitting is continued using latches; S304. Move one of the templates again in the same or opposite direction to offset the other template by 100 mm, and continue to use the pins for adaptation.

5. The method for constructing a deep-sea suction anchor locking frame according to claim 1, characterized in that: In step S400, it includes the following steps: S401, installing the stopper web and the stopper rib on the stopper bottom plate, wherein a 0.2% welding shrinkage allowance is reserved in the length direction of the stopper web and the stopper bottom plate; S402, splicing the stopper wing plate to match the stopper web plate and the stopper rib plate; S403, installing the bent plate on the stopper web and welding it to form the main structure of the stopper; S404, installing and welding the block end plate to the main structure; S405: After the main structure passes inspection, the block is turned over and a hole is drilled on the block bottom plate; S406. Prepare a set of machined hole templates based on the design dimensions of the stopper base plate; the templates must be exactly the same size as the stopper base plate; S407, overlap the template with the block bottom plate, ensure that the front of the template faces outward, and position the template; S408. Punch holes according to the template, ensuring accurate hole positions and consistent hole diameters. S409: After the drilling is completed, the block is sanded; S410. Install the rubber pad onto the stopper.

6. The method for constructing a deep-sea suction anchor locking frame according to claim 1, characterized in that: In step S500, it includes the following steps: S501. According to the straight construction method, the main beam is placed on the supporting structure so that the main beam is in a horizontal state. The height of the supporting structure needs to be adjusted to ensure that the main beam reaches the horizontality required by the design. S502: After the main beams are placed and leveled, a connecting beam is placed between the two main beams, and the spacing and levelness between the two main beams are ensured, and then the connecting beam is welded to form a main frame; S503, spot welding the latch mainboard to the main frame; S504, spot welding the rotary shaft insert plate to the main frame; S505, spot welding the stopper and the rotary shaft to the main frame; S506. Install the lifting lugs on the main frame.

7. The method for constructing a deep-sea suction anchor locking frame according to claim 1, characterized in that: In step S600, it includes the following steps: S601, lifting the locking frame horizontally; S602: Horizontally align the locking frame with the plet socket. When the locking frame is lowered onto the plet socket, the positions of the rotary shaft, the latch mainboard, and the stopper need to be adjusted to align with the plet socket. The contact between the locking frame and the plet socket is measured to ensure three-point force contact. S603, welding the rotary shaft, the stopper, and the latch main plate to lock the position on the locking frame; S604, lifting the locking frame, angling the locking frame horizontally relative to the plet socket, and fitting the locking frame to the plet socket. When the locking frame is lowered to the plet socket, the latch mainboard must be able to be inserted into the locking base of the plet socket, and the latch of the plet socket must be able to be inserted into the latch mainboard; S605. Lift the locking frame vertically through the lifting lugs, make the locking frame perpendicular to the plet socket, and adapt it to the plet socket so that the rotary shaft falls into the plet socket, rotate and tilt the locking frame and check the adaptation.

8. The method for constructing a deep-sea suction anchor locking frame according to claim 1, characterized in that: In step S700, it includes the following steps: S701. Turn over and drill holes in the main beam: When the main frame is prefabricated and does not have the conditions to adapt to the plet socket, you can turn it over and drill holes first; among them, fifty holes with the same spacing need to be drilled in each row on the main beam, prepare the drilling template, and position and drill the main beam three times. When drilling, keep the template close to the main beam, and make sure that the front and back sides and direction of the template meet the requirements.

9. The method for constructing a deep-sea suction anchor locking frame according to claim 1, characterized in that: In step S800, it includes the following steps: S801. Install the block on the locking frame, sandblast and paint. After sandblasting, use tape to protect the area where the main beam opening needs to be installed with the gasket. After painting, install the anode.

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