A method for constructing pile shoes in sections for a wind power installation vessel

Abstract

The invention relates to the technical field of pile shoe construction, and in particular to a method for constructing pile shoes in sections for a wind power installation vessel, comprising: constructing a pile shoe section E, comprising: making a tire frame, fixing a section E bottom plate on the tire frame, assembling three outer bottom T rows on the section E bottom plate, hoisting a lower section of a pile core to a central position of the section E bottom plate for assembly, assembling an inner bottom T row, an inner mouth enclosure, an outer bottom rib plate, an inclined top outer plate component and three outer upper plates assembled with reverse buckles on the section E bottom plate, and inserting three blind teeth on the section E bottom plate; constructing a pile shoe section A, a pile shoe section B and a pile shoe section C; assembling the pile shoe section A, the pile shoe section B and the pile shoe section C onto the pile shoe section E; when constructing the pile shoe section E, the invention assembles three blind teeth onto the pile shoe section E, aiming to ensure the accuracy between the pile shoe and the pile leg, so that the blind tooth structure at the bottom of the pile leg can be in a controlled state starting from the section construction stage.

Description

Technical Field

[0001] The invention relates to the technical field of pile shoe construction, and in particular to a method for constructing pile shoes in sections for a wind power installation vessel. Background Art

[0002] The pile legs and pile shoes of the self-elevating and self-propelled wind turbine installation vessel are two indispensable parts for supporting the hull. Through tight structural connection, coordinated load-bearing function, stable support collaboration and adaptability to different sea environments, they provide solid support and a stable working platform for the wind turbine installation vessel when operating at sea.

[0003] For example, on February 22, 2019, a patent with announcement number CN107503347B, entitled a manufacturing process for pile shoes of an offshore platform, was disclosed. After the lower bottom plate and the middle column are welded, the internal ribs, the internal T-rows of the lower bottom plate and the external T-rows of the lower bottom plate are assembled in sequence; secondly, the external upper bottom plate is assembled and the external T-rows of the lower bottom plate and the external upper bottom plate assembly are welded to the lower bottom plate in sequence; then the middle partition is inserted; the internal ribs, the internal T-rows of the lower bottom plate, the middle partition and the lower bottom plate are welded in sequence, and then the vertical angles of the internal ribs and the middle column are welded; then the internal profiles of the upper bottom plate are scattered welded; finally, the three internal upper bottom plates are capped; the manufacturing process of the invention improves the efficiency of segmented manufacturing; however, the applicant found that in order to improve the accuracy of the pile shoes and pile legs, blind teeth would be respectively set on the three external upper bottom plate assemblies in the pile shoes. However, when the three external upper bottom plate assemblies are closed, it is difficult to ensure the relative relationship of the three blind teeth, making it difficult to control the accuracy of the pile shoes and pile legs. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a method for constructing pile shoes of a wind power installation vessel in sections, so as to solve the problem that the accuracy of the pile shoes and pile legs is difficult to control.

[0005] Based on the above purpose, the present invention provides a method for constructing pile shoes of a wind power installation vessel in sections, comprising:

[0006] Construction of pile shoe section E, including:

[0007] Make tire frame;

[0008] Fix the E-section bottom plate on the tire frame;

[0009] Joint the bottom plate of section E;

[0010] Assemble three outsole T rows on the bottom plate of section E;

[0011] Lift the lower section of the pile core to the center of the E section bottom plate for assembly;

[0012] An inner bottom T row is assembled on the bottom plate of section E, an inner opening coaming is assembled around the outer side of the inner bottom T row, an outer bottom rib is assembled in the middle of each outer bottom T row, and an inclined top outer plate component is assembled on the upper end of the outer bottom rib;

[0013] Three outer upper plates are assembled at one end of the three inclined top outer plate components away from the lower section of the pile core, and a cover plate surrounding the outer side of the lower section of the pile core is assembled at the upper end of the inner opening enclosure plate;

[0014] Three blind teeth are inserted on the bottom plate of section E, and the three blind teeth are respectively located in the middle between the three inclined top outer plate components corresponding to the three outer upper plate assemblies;

[0015] Assemble the upper section of the pile core on the lower section of the pile core to construct the pile shoe section E;

[0016] Construction of pile shoe section A, pile shoe section B and pile shoe section C;

[0017] Assemble the pile shoe section A, the pile shoe section B and the pile shoe section C onto the pile shoe section E.

[0018] Optionally, the tire frame is manufactured by using the E-section bottom plate to form the tire.

[0019] Optionally, after the E-section bottom plate is assembled, the center of the pile shoe and the center of the blind tooth are marked on the E-section bottom plate.

[0020] Optionally, when hoisting the lower section of the pile core, use a wire hammer to locate the core and confirm that it is aligned with the center of the pile shoe of the bottom plate of section E, with a verticality of ≤3mm.

[0021] Optionally, before the blind tooth is inserted, the total station is used to find the blind tooth center of the top plate of the pile shoe section E, and the construction team makes a cross auxiliary tooling on the top plate of the pile shoe section E, knocks in a cross sample punch point, and uses a plumb bob to check the deviation between the blind tooth center of the top plate of the pile shoe section E and the blind tooth center of the bottom plate of section E, and trims the top plate of the pile shoe section E and the radial plate of the pile shoe section E to ensure that the blind tooth is smoothly inserted to the theoretical position.

[0022] Optionally, before blind tooth insertion, remove all tire seals and separate the tire frame from the E-section bottom plate.

[0023] Optionally, when welding the blind tooth: the radial plate of the pile shoe section E is welded halfway to the semicircular plate of the blind tooth, and the accuracy is monitored once; the welding of the radial plate of the pile shoe section E to the semicircular plate of the blind tooth is completed, and the accuracy is monitored once; the annular plate of the pile shoe section E is located between the external upper plate assembly and the inclined top outer plate component, and the annular plate of the pile shoe section E is welded halfway to the blind tooth butt plate, and the accuracy is monitored once; after all welding is completed and before the tire is loosened, the accuracy is monitored once.

[0024] Beneficial effects of the present invention: The present invention provides a method for constructing pile shoes of a wind power installation vessel in sections. When constructing pile shoe section E, three blind teeth are assembled on pile shoe section E, aiming to ensure the accuracy between the pile shoe and the pile leg, so that the blind tooth structure at the bottom of the pile leg can be in a controlled state from the stage of section construction. The relative relationship of the three blind teeth is ensured in the manufacturing stage of pile shoe section E. Pile shoe section A, pile shoe section B and pile shoe section C are assembled in situ with pile shoe section E in the dock, and the pile shoe section E is used as the reference section and the reference line is used to align them, and the entire pile shoe is assembled, that is, the tops of the three blind teeth of pile shoe section E are simultaneously ensured to meet the tolerance requirements, which not only ensures the accuracy of the entire pile shoe during the assembly, greatly reduces the amount of cutting of the closing mouth, but also ensures the reference for the segmented installation of the pile leg on the blind teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of the E-section bottom plate of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of assembling the inner bottom T row on the E section bottom plate of the present invention;

[0028] Figure 3 It is a structural schematic diagram of assembling the inclined top outer plate component on the E-section bottom plate of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the pile shoe E section of the present invention;

[0030] Figure 5 It is a schematic structural diagram of the pile shoe of the present invention.

[0031] In the figure: 1. Pile shoe section E; 2. Pile shoe section A; 3. Pile shoe section B; 4. Pile shoe section C; 5. Section E bottom plate; 6. Lower section of pile core; 7. Outer bottom T row; 8. Inner bottom ribs; 9. Inner bottom T row; 10. Inner mouth enclosure; 11. Outer bottom ribs; 12. Inclined top outer plate component; 13. External upper plate assembly; 14. Cover plate; 15. Blind teeth; 16. Upper section of pile core. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0033] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connecting" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] like Figures 1 to 5 As shown, a method for constructing pile shoes in sections of a wind power installation vessel comprises:

[0035] 1. Construction of pile shoe E section 1, including:

[0036] 1.1. Making the tire frame:

[0037] The E-section bottom plate 5 is made in the correct sitting position. Referring to the E-section bottom plate 5 tire frame layout drawing, a large group of E-section bottom plate 5 tire frames are made. Referring to the pile shoe E-section 1 working drawing in the pile shoe segmentation, the reference plane projection contour line (ground sample line) is drawn. The pile shoe center position point (pile core installation position), the reference line position point and the 120° radial angle line are drawn on the reference plane projection contour line.

[0038] 1.2. Fix the E-section bottom plate 5 on the tire frame:

[0039] The E-section bottom plate 5 is used as the horizontal reference for sitting the tire to ensure that the pile shoe E-section 1 in the pile shoe segment is level. According to the process requirements, the three corners of the E-section bottom plate 5 are given a downward anti-deformation of 10 mm (0.06°). The anti-deformation is taken into consideration when making the tire frame. The E-section bottom plate 5 on the pile shoe E-section 1 in the pile shoe segment is the tire sitting plate, and the tire sitting plate is firmly connected to the tire frame.

[0040] 1.3. For the E-section bottom plate 5, mark the center of the pile shoe and the center of the blind tooth 15 on the E-section bottom plate 5. The construction team marks the line according to the diagonal length (additional shrinkage of the panels needs to be added during the paneling). The projection length and the diagonal length are confirmed with a total station. After confirmation, the center of the pile shoe and the center of the blind tooth 15 of the E-section bottom plate 5 are marked and permanent sample punching points are set. There are three projection lengths and three diagonal lengths. The projection length is the distance between the center of the pile shoe and the center of the blind tooth 15. A diagonal length parallel to the projection length is set on one side. The two ends of the diagonal length are respectively located on one side of the pile shoe center and one side of the blind tooth 15 center. The distance between one end of the diagonal length and the center of the pile shoe is the same as the distance between the other end of the diagonal length and the center of the blind tooth 15.

[0041] 1.4. Three outer bottom T rows 7 are assembled on the E-section bottom plate 5 , and the three outer bottom T rows 7 are respectively located on the three expenditure plates on the E-section bottom plate 5 .

[0042] 1.5. Lift the lower section 6 of the pile core to the center position of the E-section bottom plate 5 for assembly, use a wire hammer to align the core, and confirm that it is aligned with the center of the pile shoe of the E-section bottom plate 5, with a verticality of ≤3mm.

[0043] 1.6. Assemble the inner bottom T row 9 on the bottom plate 5 of section E. The inner bottom T row 9 surrounds the outer side of the lower section 6 of the pile core and is located inside the three outer bottom T rows 7;

[0044] The inner opening panel 10 is assembled around the outer side of the inner bottom T row 9. A plurality of inner bottom ribs 8 assembled with the E-section bottom plate 5 are arranged at equal angles inside the inner opening panel 10. The verticality of the inner opening panel 10 and the end difference between the inner opening panel 10 and the E-section bottom plate 5 are confirmed by the plumb bob. Positioning is strictly carried out according to the longitudinal and transverse reference lines. The longitudinal and transverse reference lines are aligned ≤±3mm, the end difference reference side ≤±2mm, and the end difference non-reference side ≤±4mm. After confirmation, positioning spot welding is carried out;

[0045] After the inner opening enclosure 10 is assembled, an inspection report is submitted to the precision control, and the precision control issues a "Precision Control Report before Welding of Segmented Inner Opening Enclosure 10 (Before Adjustment)". After all the out-of-tolerance parts are rectified (the end difference must be processed before welding), the construction team submits a re-inspection to the regional precision control. Welding operations can only be carried out after passing the re-inspection. When welding, the welding process must be followed and attention must be paid to the welding sequence. Among them, the precision control inspection report before welding of the inner opening enclosure 10 is intended to determine the pre-welding accuracy of the positioning of the inner opening enclosure 10.

[0046] An outer bottom rib 11 is assembled in the middle of each outer bottom T row 7 , the lower end of the outer bottom rib 11 is assembled with the E-section bottom plate 5 , and one end of the outer bottom rib 11 is assembled with the inner opening enclosure plate 10 .

[0047] An inclined top outer plate component 12 is assembled on the upper end of the outer bottom rib plate 11 , and one end of the inclined top outer plate component 12 is assembled with the inner opening enclosure plate 10 .

[0048] 1.7. Three external upper plate assemblies 13 are assembled in reverse at one end of the pile core lower section 6 away from the three inclined top outer plate components 12, and the three external upper plate assemblies 13 are assembled to the three disbursement plates on the E section bottom plate 5.

[0049] A cover plate 14 surrounding the outer side of the pile core lower section 6 is mounted on the upper end of the inner opening enclosure plate 10 .

[0050] Mark out horizontal reference points on the E-section bottom plate 5 and the external upper plate assembly 13, mark them and set up permanent sample punch points to facilitate the construction team to use a level to check.

[0051] Before the blind tooth 15 is installed, the precision control uses the total station to assist the construction team in finding the center of the blind tooth 15 on the top plate of the pile shoe E section 1 (the theoretical position for the insertion of the blind tooth 15) according to the projection length. The construction team makes a cross auxiliary tooling on the top plate of the pile shoe E section 1, knocks in a cross sample punch point, and uses a plumb bob to check the deviation between the center of the blind tooth 15 on the top plate of the pile shoe E section 1 and the center of the blind tooth 15 on the bottom plate 5 of section E (there will be a deviation between the welding shrinkage addition and the actual welding shrinkage). The top plate of the pile shoe E section 1 and the internal radial plate of the pile shoe E section 1 are trimmed to ensure that the blind tooth 15 is smoothly inserted into the theoretical position. The radial plate of the pile shoe E section 1 includes the outer bottom rib 11 and the middle plate of the external upper plate assembly 13. The extension lines of the outer bottom rib 11 and the extension lines of the middle plate of the external upper plate assembly 13 both pass through the center line of the pile shoe.

[0052] 1.8. Install three blind teeth 15 on the bottom plate 5 of section E. The three blind teeth 15 are respectively located in the middle between the three outer upper plate assemblies 13 and the three corresponding inclined top outer plate components 12;

[0053] After the blind teeth 15 are inserted, the total station is used to detect the distance between the centers of three adjacent blind teeth 15, the distance between the ends of the butt plates of three adjacent blind teeth 15, the distance between the centers of three blind teeth 15 and the center of the pile core, and the twisting angle of the blind teeth 15 before and after welding to ensure that the blind teeth 15 meet the precision control tolerance and are installed in place. The construction team monitors the center of the blind teeth 15 during the welding process of the blind teeth 15. The upper section 16 of the pile core is formed by a small group. Due to the risk of overweight in the pile shoe segmentation, the total group is bulk packed;

[0054] The pile shoe E section 1, except the blind tooth 15, is inspected after welding. The premise of this inspection is that the tire needs to be loosened, that is, all the tire seals need to be removed, that is, the tire frame and the E section bottom plate need to be separated. In addition, the welding point between the tire frame and the E section bottom plate is polished smooth. The purpose is to detect the post-welding accuracy of the pile shoe E section 1. The precision controller optimizes the data of the pile shoe E section 1 to the best, and the on-site construction personnel rectify the accuracy deviation position. The horizontal reference line of the inner mouth enclosure 10 is all corrected in place;

[0055] On the E-section bottom plate 5 and the top plate of the pile shoe E-section 1, find out the theoretical position of the center of the blind tooth 15, the 6 horizontal reference points of the inner opening panel 10 of the pile shoe, 2 permanent fixed target points, 2 X-axis positive axis points, and 9 theoretical position points of the center of the blind tooth 15. The on-site construction team should make good marks to facilitate the hanging hammer to trim the radial frame so that the blind tooth 15 can be smoothly hoisted into the pile shoe E-section 1;

[0056] After the blind tooth 15 is hoisted into the pile shoe, the blind tooth 15 is inserted and positioned until the blind tooth 15 is positioned successfully and meets the tolerance requirements: the top of the blind tooth 15 is horizontal ±3mm, the chord length between the blind teeth 15 is between ±10mm, and the twisting angle of the blind tooth 15 is within ±0.5°, which are consistent with the allowable tolerance of the pile leg; After the blind tooth 15 is positioned and welded, the precision controller monitors the accuracy of the welding process;

[0057] During the welding of the blind tooth 15: the radial plate of the pile shoe E section 1 is welded halfway to the semicircular plate of the blind tooth 15, and the accuracy is monitored once; the welding of the radial plate of the pile shoe E section 1 to the semicircular plate of the blind tooth 15 is completed, and the accuracy is monitored once; the annular plate of the pile shoe E section 1 is located between the external upper plate assembly 13 and the inclined top outer plate component 12, and the annular plate of the pile shoe E section 1 is welded halfway to the butt plate of the blind tooth 15, and the accuracy is monitored once; after all welding is completed and before the tire is loosened, the accuracy is monitored once.

[0058] 1.9. Assemble the pile core upper section 16 on the pile core lower section 6 to construct the pile shoe E section 1.

[0059] 2. Construct pile shoe A section 2, pile shoe B section 3 and pile shoe C section 4.

[0060] The steps of constructing the pile shoe A section 2, the pile shoe B section 3 and the pile shoe C section 4 and the step of constructing the pile shoe E section 1 can be performed simultaneously or the two steps can be swapped.

[0061] 3. Assemble the pile shoe A section 2, the pile shoe B section 3 and the pile shoe C section 4 onto the pile shoe E section 1.

[0062] In the method, three blind teeth 15 are assembled onto the pile shoe E segment 1 when constructing the pile shoe E segment 1, aiming to ensure the accuracy between the pile shoe and the pile leg, so that the blind tooth 15 structure at the bottom of the pile leg can be in a controlled state from the stage of segmented construction. The relative relationship of the three blind teeth 15 is ensured during the manufacturing stage of the pile shoe E segment 1, and the pile shoe A segment 2, the pile shoe B segment 3 and the pile shoe C segment 4 are assembled in situ with the pile shoe E segment 1 in the dock, and the pile shoe E1 segment is used as the reference segment and the reference line is used to align, and the entire pile shoe is assembled, that is, the tops of the three blind teeth 15 of the pile shoe E segment 1 meet the tolerance requirements simultaneously, which not only ensures the accuracy of the entire pile shoe during the assembly, greatly reduces the amount of cutting of the closing mouth, but also ensures the reference for the segmented installation of the pile leg above the blind teeth 15.

[0063] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. The present invention is not limited to the above-mentioned implementation modes, that is, it does not mean that the present invention must rely on the above-mentioned methods and structures to be implemented. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0064] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for constructing pile shoes in sections for a wind power installation vessel, characterized in that: include: Construction of pile shoe section E (1), including: Make tire frame; Fixing the E-section bottom plate (5) on the tire frame; The bottom plate (5) of section E is assembled; Assemble three outer bottom T rows (7) on the E-section bottom plate (5); Lifting the lower section of the pile core (6) to the center position of the E section bottom plate (5) for assembly; An inner bottom T row (9) is assembled on the bottom plate (5) of the E section, an inner opening panel (10) is assembled around the outer side of the inner bottom T row (9), an outer bottom rib plate (11) is assembled in the middle of each outer bottom T row (7), and an inclined top outer plate component (12) is assembled on the upper end of the outer bottom rib plate (11); Three external upper plate assemblies (13) are assembled in reverse at one end of the lower section (6) of the pile core away from the three inclined top outer plate components (12), and a cover plate (14) surrounding the outer side of the lower section (6) of the pile core is assembled at the upper end of the inner opening enclosure (10); Three blind teeth (15) are inserted on the E-section bottom plate (5), and the three blind teeth (15) are respectively located in the middle between the three external upper plate assemblies (13) and the three corresponding inclined top outer plate components (12); Assembling the pile core upper section (16) on the pile core lower section (6) to construct the pile shoe E section (1); constructing pile shoe section A (2), pile shoe section B (3) and pile shoe section C (4); The pile shoe section A (2), the pile shoe section B (3) and the pile shoe section C (4) are assembled onto the pile shoe section E (1).

2. The method for constructing pile shoes of a wind power installation vessel in sections according to claim 1, characterized in that: The tire frame is made by using the E-section bottom plate (5) to form a tire seat.

3. The method for constructing pile shoes of a wind power installation vessel in sections according to claim 1, characterized in that: After the E-section bottom plate (5) is assembled, the center of the pile shoe and the center of the blind tooth (15) are marked on the E-section bottom plate (5).

4. The method for constructing pile shoes of a wind power installation vessel in sections according to claim 1, characterized in that: When hoisting the lower section of the pile core (6), use a wire hammer to align the core and confirm that it is aligned with the center of the pile shoe of the E-section bottom plate (5) with a verticality of ≤3mm.

5. The method for constructing pile shoes of a wind power installation vessel in sections according to claim 1, characterized in that: Before the blind tooth (15) is inserted, the center of the blind tooth (15) on the top plate of the pile shoe E section (1) is found by a total station. The construction team makes a cross auxiliary tool on the top plate of the pile shoe E section (1), knocks in a cross sample punch point, and uses a plumb bob to check the deviation between the center of the blind tooth (15) on the top plate of the pile shoe E section (1) and the center of the blind tooth (15) on the bottom plate (5) of the E section. The top plate of the pile shoe E section (1) and the radial plate of the pile shoe E section (1) are trimmed to ensure that the blind tooth (15) is smoothly inserted into the theoretical position.

6. The method for constructing pile shoes of a wind power installation vessel in sections according to claim 1, characterized in that: Before the blind teeth (15) are inserted, loosen the tire: remove all tire seals and separate the tire frame from the E-section bottom plate (5).

7. The method for constructing pile shoes of a wind power installation vessel in sections according to claim 1, characterized in that: When welding the blind tooth (15): the radial plate of the pile shoe E section (1) is welded to the semicircular plate of the blind tooth (15) halfway, and the accuracy is monitored once; the radial plate of the pile shoe E section (1) is welded to the semicircular plate of the blind tooth (15) completely, and the accuracy is monitored once; the annular plate of the pile shoe E section (1) is located between the outer upper plate assembly (13) and the inclined top outer plate component (12), and the annular plate of the pile shoe E section (1) is welded to the blind tooth (15) halfway, and the accuracy is monitored once; after all welding is completed and before the tire is loosened, the accuracy is monitored once. After all welding is completed and after the tire is loosened, the accuracy is monitored once.

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