A method for constructing a heave plate of a floating wind power installation platform

Abstract

The present application discloses a method for constructing a heave plate of a floating wind power installation platform, which relates to the technical field of offshore wind power installation platform construction, and includes the following steps: respectively manufacturing a first section, a second section, a third section, and a fourth section, and then assembling them into a first section and a second section; the general assembly hook respectively lifts the first section and the second section through a general assembly rope arrangement method to complete the hoisting of the general assembly, and the general assembly rope arrangement method includes respectively configuring two first-level steel wire ropes that are passed through on both sides of the general assembly hook, configuring two second-level steel wire ropes under each first-level steel wire rope, and the two second-level steel wire ropes located on the inner side are respectively hung on the second hoisting group and the third hoisting group, and the two second-level steel wire ropes located on the inner side are passed through, and the two second-level steel wire ropes located on the outer side are respectively hung on the first hoisting group and the fourth hoisting group, and the two second-level steel wire ropes located on the outer side are not passed through. The present application is conducive to the manufacture and precision control of the heave plate, and completes the hoisting of the heave plate at any positioning angle.

Description

Technical Field

[0001] The present application relates to the technical field of offshore wind power installation platform construction, and in particular to a method for constructing a heave plate of a floating wind power installation platform. Background Art

[0002] In recent years, as offshore wind power installation platforms have gradually developed towards offshore and deep-sea wind power installation platforms, floating wind power installation platforms are not restricted by water depth and are applicable to a wider sea area. Therefore, floating wind power installation platforms are currently used for the construction of offshore wind farms in water depths above 60 meters.

[0003] In the floating wind power installation platform, the research on the construction technology of the floating structure is the core technology of the floating wind power installation platform. The heave plate in the floating structure has the characteristics of large size, heavy weight, complex structure, irregular shape, thin wall, etc. If it is made as a whole in the workshop, it will face the problem of weight lifting and transportation restrictions. If it is made in parts in the workshop and then assembled, the overall accuracy is difficult to guarantee. In addition, in the current construction plan, because the floating wind power installation platform has a regular triangle structure, the heave plate is located at the end of the triangle tip and presents different angles, so the heave hoisting can only be hoisted with a single hook, which is convenient for rotation after hoisting to adapt to different positioning angles. However, the heave plate is not a regular cubic structure and cannot be hoisted using the traditional single hook and rope method.

[0004] The technical problem to be solved by the present invention is to formulate a reasonable and feasible construction method for the heave plate of a floating wind power installation platform, reasonably divide the structure of the heave plate, facilitate the precision control of the heave plate, and complete the hoisting of the heave plate at any positioning angle. Summary of the invention

[0005] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application provides a method for constructing a heave plate of a floating wind power installation platform, which is conducive to the production and precision control of the heave plate and completes the hoisting of the heave plate at any positioning angle.

[0006] According to an embodiment of the present application, a method for constructing a heave plate of a floating wind power installation platform comprises the following steps:

[0007] Segment division steps: taking the panel of the heave plate as a reference, dividing the heave plate into a first section and a second section according to a first dividing line, the first dividing line being based on the symmetry axis of the heave plate and being set in parallel with an offset d in the direction of the second section, d>0; dividing the first section into a first section and a second section according to a second dividing line, the second dividing line being set at the junction of the straight section and the circular arc section of the first section, dividing the second section into a third section and a fourth section according to a third dividing line, the third dividing line being set at the junction of the straight section and the circular arc section of the second section, the first section and the third section are both straight section box-type structures, and the second section and the fourth section are both circular arc section box-type structures;

[0008] Segment production steps: produce the first segment, the second segment, the third segment and the fourth segment respectively;

[0009] The step of assembling the segments in the middle: completing the butt joint of the first segment and the second segment on the middle assembly frame, welding the closing weld, and assembling into the first section; completing the butt joint of the third segment and the fourth segment on the middle assembly frame, welding the closing weld, and assembling into the second section;

[0010] The steps of block assembly are as follows: transport the first and second sections to the external assembly site for hoisting and closing. The assembly hook lifts the first and second sections respectively through the assembly rope method. After leaving the air, they are rotated to adjust the angle and then slowly lowered to the assembly frame and positioned and fixed. The first and second sections are docked to complete the installation of the heave plate.

[0011] The overall assembly rope matching method comprises: marking the position of the center of gravity of the straight section on the panel of the straight section box-type structure, marking the position of the center of gravity of the circular arc section on the panel of the circular arc section box-type structure, and then marking the lifting reference line on the panels of the first subsection and the second subsection respectively, and the lifting reference line passes through the center of gravity of the straight section and the center of gravity of the circular arc section; arranging the first lifting component and the second lifting component on the panel of the circular arc section box-type structure, the first lifting component and the second lifting component are distributed on both sides of the center of gravity of the circular arc section, the first lifting component is arranged away from the junction of the straight section and the circular arc section, and the second lifting component is arranged close to the junction of the straight section and the circular arc section; arranging the third lifting component on the panel of the straight section box-type structure The first and fourth lifting components, the third and fourth lifting components are distributed on both sides of the center of gravity of the straight section, the third lifting component is arranged close to the junction of the straight section and the arc section, and the fourth lifting component is arranged far away from the junction of the straight section and the arc section; two first-level steel wire ropes are arranged on both sides of the total assembly hook, each first-level steel wire rope is arranged with two second-level steel wire ropes, the two second-level steel wire ropes located on the inner side are respectively hung on the second lifting component and the third lifting component, the two second-level steel wire ropes located on the inner side are arranged to be passed through, the two second-level steel wire ropes located on the outer side are respectively hung on the first lifting component and the fourth lifting component, and the two second-level steel wire ropes located on the outer side are not arranged to be passed through.

[0012] In an optional or preferred embodiment, before the first section or the second section is lifted, the vertical projection point of the overall assembly hook falls on the lifting reference line.

[0013] In an optional or preferred embodiment, the two primary steel wire ropes configured for the main assembly hook are respectively a first-level hoisting steel wire rope and a second-level hoisting steel wire rope. The first-level hoisting steel wire rope and the second-level hoisting steel wire rope are respectively arranged on the main assembly hook to ensure that the first-level steel wire rope evenly distributes the tension to each secondary steel wire rope.

[0014] In an optional or preferred embodiment, the first hoisting assembly includes a first outer lifting ring and a second outer lifting ring distributed on the left and right sides of the hoisting reference line, and the second hoisting assembly includes a first inner lifting ring and a second inner lifting ring distributed on the left and right sides of the hoisting reference line. Further, the two secondary steel wire ropes configured for the first-level first hoisting wire rope are respectively the second-level first hoisting wire rope and the second-level second hoisting wire rope, and are respectively connected to the two ends of the first-level first hoisting wire rope through the first shackle, the second-level first hoisting wire rope is located on the outside, the second-level first hoisting wire rope is composed of two steel wire ropes, which are not set through, and are respectively hung on the two first outer hoisting rings and the second outer hoisting rings of the first hoisting assembly, thereby limiting the lateral flipping of the first section or the second section, the second-level second hoisting wire rope is composed of one steel wire rope, which is set through, and the two ends are respectively hung on the first inner lifting ring and the second inner lifting ring of the second hoisting assembly, and the lengths of the first-level first hoisting wire rope, the second-level first hoisting wire rope and the second-level second hoisting wire rope are all calculated by calculating the oblique length through the height and the horizontal plane projection length.

[0015] At the same time, the third hoisting assembly includes a third inner hoisting ring and a fourth inner hoisting ring distributed on the left and right sides of the hoisting reference line, and two second outer hoisting rings, and the fourth hoisting assembly includes a third outer hoisting ring and a fourth outer hoisting ring distributed on the left and right sides of the hoisting reference line. Further, the two secondary steel wire ropes configured for the first-level second hoisting wire rope are the second-level third hoisting wire rope and the second-level fourth hoisting wire rope, respectively, and are connected to the two ends of the first-level second hoisting wire rope through the second shackle, respectively, the second-level fourth hoisting wire rope is located on the outside, the second-level fourth hoisting wire rope is composed of two steel wire ropes, which are not set through, and are respectively hung on the third outer hoisting ring and the fourth outer hoisting ring of the fourth hoisting assembly, thereby limiting the lateral flipping of the first section or the second section, the second-level third hoisting wire rope is composed of one steel wire rope, which is set through, and the two ends are respectively hung on the third inner hoisting ring and the fourth inner hoisting ring of the third hoisting assembly, and the lengths of the first-level second hoisting wire rope, the second-level third hoisting wire rope and the second-level fourth hoisting wire rope are all calculated by calculating the oblique length through the height and the horizontal plane projection length.

[0016] In an optional or preferred embodiment, in the segmented production step, the first segment, the second segment, the third segment and the fourth segment are all produced by the inverted construction method, and then turned over by the segmented turning over method; wherein the inverted construction method includes: marking ground sample lines, making a small group of tire frames on the ground, laying panel sheets, installing transverse partitions, installing inner and outer bulkheads, and finally installing the bottom plate sheets, and welding the whole, wherein more than 20% of the welds connected to the panel are welded; after turning over, the overhead welding is changed to flat welding and then welding.

[0017] Among them, the segmented turning over method of the first segment and the third segment includes: installing a first lifting ring assembly close to the axis side on the panel and the bottom plate of the straight section box-type structure, and installing a second lifting ring assembly on the outer side of the straight section box-type structure; the main hook hangs the second lifting ring assembly, and the auxiliary hook hangs the first lifting ring assembly on the bottom plate of the straight section box-type structure, the main hook and the auxiliary hook lift the straight section box-type structure, and the auxiliary hook falls until it no longer bears the force, at which time the main hook bears the entire weight of the straight section box-type structure, the main hook rotates 180° to rotate the straight section box-type structure 180°, the auxiliary hook hangs the first lifting ring assembly on the panel of the straight section box-type structure, the auxiliary hook rises to make the straight section box-type structure in a horizontal state, and then the main hook and the auxiliary hook lift the straight section box-type structure to the middle group tire frame and position and fix it.

[0018] Among them, the segmented turning over method of the second segment and the fourth segment includes: installing a third lifting ring assembly close to the axis side on the panel and the bottom plate of the arc segment box-type structure, and installing a fourth lifting ring assembly on the outer side of the arc segment box-type structure; the main hook hangs the fourth lifting ring assembly, and the auxiliary hook hangs the third lifting ring assembly on the bottom plate of the arc segment box-type structure, the main hook and the auxiliary hook lift the arc segment box-type structure, and the auxiliary hook falls until it no longer bears the force, at which time the main hook bears the entire weight of the arc segment box-type structure, the main hook rotates 180°, so that the arc segment box-type structure rotates 180°, the auxiliary hook hangs the third lifting ring assembly on the panel of the arc segment box-type structure, the auxiliary hook rises, so that the arc segment box-type structure is in a horizontal state, and then the main hook and the auxiliary hook lift the arc segment box-type structure to the middle group tire frame and position it.

[0019] In an optional or preferred embodiment, the first lifting ring assembly on the straight section box-type structure panel includes two first lifting rings, and in the segmented assembly step, one of the first lifting rings is used as the third inner lifting ring, and the other first lifting ring is used as the third outer lifting ring; the third lifting ring assembly on the arc section box-type structure panel includes two third lifting rings, and in the segmented assembly step, one of the third lifting rings is used as the first inner lifting ring, and the other third lifting ring is used as the first outer lifting ring.

[0020] Based on the above technical solution, the embodiments of the present application have at least the following beneficial effects:

[0021] First, the first dividing line is set at a position where the symmetry axis of the heave plate is taken as the reference and offset in parallel to the second section by an offset d. The first section and the second section are basically symmetrical, which is conducive to weight distribution and precision control. The symmetry axis of the heave plate is a continuous longitudinal bulkhead. All webs, diaphragms, and reinforced bulb flat steels fixed on the longitudinal bulkhead do not need to be disconnected, and no welds need to be added. The longitudinal bulkhead can be avoided by translation by an offset d. The second dividing line and the third dividing line are set at the junction of the straight section and the arc section, dividing the irregular heave plate structure into a regular straight section box structure and an arc section box structure, which is conducive to ground line marking, assembly alignment, and precision measurement.

[0022] Secondly, the main assembly hook adopts the main assembly rope matching method of a single hook, which can realize the angle adjustment of the first and second sections when they are positioned and installed, solving the problem of lifting and positioning the heave plate at any angle; a first-level steel wire rope is configured under the main assembly hook, and the first-level steel wire rope is configured with two second-level steel wire ropes that are located on the inner side and two second-level steel wire ropes that are not located on the outer side, which can limit the lateral flipping of the first and second sections during lifting, ensuring that they are in a horizontal state during lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present application is further described below with reference to the accompanying drawings and embodiments;

[0024] Figure 1 This is a segmented division diagram of the heave plate of an embodiment of the present application;

[0025] Figure 2 This is a schematic diagram of the structure of the first segment before turning over in the embodiment of the present application;

[0026] Figure 3 yes Figure 2 A cross-sectional view in the AA direction, in which the section line is not marked;

[0027] Figure 4 yes Figure 2 A cross-sectional view along the BB direction, wherein the section line is not marked;

[0028] Figure 5 This is a schematic diagram of the structure of the second segment before turning over in the embodiment of the present application;

[0029] Figure 6 yes Figure 5 A cross-sectional view taken along the CC direction, wherein the section line is not marked;

[0030] Figure 7 This is a schematic diagram of the combination of the first sub-section in the embodiment of the present application;

[0031] Figure 8 It is a schematic diagram of the overall assembly hoisting of the first division in the embodiment of the present application.

[0032] Reference numerals: heave plate 100, first cutting line 101, second cutting line 102, third cutting line 103, heave plate symmetry axis 104, first division 110, first segment 111, second segment 112, division center of gravity 113, first center of gravity 114, second center of gravity 115, second division 120, third segment 121, fourth segment 122;

[0033] A third outer lifting ring 211, a third inner lifting ring 212, a fourth outer lifting ring 221, a fourth inner lifting ring 222, a second lifting ring 231, a first outer lifting ring 241, a first inner lifting ring 242, a second outer lifting ring 251, a second inner lifting ring 252, a fourth lifting ring 261, and a reinforcing column 271;

[0034] A total assembly hook 301, a first-level first hoisting wire rope 311, a first-level second hoisting wire rope 312, a second-level first hoisting wire rope 321, a second-level second hoisting wire rope 322, a second-level third hoisting wire rope 323, a second-level fourth hoisting wire rope 324, a first shackle 331, and a second shackle 332;

[0035] Gantry stool 410. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0042] Refer to the following Figures 1 to 8 This embodiment describes a method for constructing a heave plate of a floating wind power installation platform, comprising the following steps:

[0043] Steps for segmentation:

[0044] Reference Figure 1, taking the panel of the heave plate 100 as a reference, the heave plate 100 is divided into a first section 110 and a second section 120 according to a first dividing line 101, wherein the first dividing line 101 is based on the symmetry axis 104 of the heave plate and is offset parallel to the second section 120 by an offset d, d>0, and d=200mm in this embodiment.

[0045] The first section 110 is divided into a first segment 111 and a second segment 112 according to a second dividing line 102, and the second dividing line 102 is set at the junction of the straight segment and the arc segment of the first section 110. The second section 120 is divided into a third segment 121 and a fourth segment 122 according to a third dividing line 103, and the third dividing line 103 is set at the junction of the straight segment and the arc segment of the second section. Figures 2 to 6 The first segment 111 and the third segment 121 are both straight-segment box-type structures, and the second segment 112 and the fourth segment 122 are both arc-segment box-type structures.

[0046] The first dividing line 101 is set at a position 200mm translated from the second section 120 based on the symmetry axis 104 of the heave plate. In this way, the first section 110 and the second section 120 are basically symmetrical, which is conducive to weight distribution and precision control. The symmetry axis 104 of the heave plate is a continuous longitudinal bulkhead. All webs, diaphragms, and reinforced bulb flat steels fixed on the longitudinal bulkhead do not need to be disconnected, and no welds need to be added. After offsetting 200mm, the longitudinal bulkhead can be avoided. In the segmented production, in order to reduce the impact of weather on construction and improve production efficiency, the segmented construction is usually carried out in the inner field workshop. However, considering the limitations of the workshop lifting capacity, the width of the segmented transfer path, the size of the sandblasting and painting workshop, etc., the overall construction of the heave plate cannot be completed in the inner field workshop at one time. In this embodiment, by setting the above-mentioned first cutting line 101, the second cutting line 102 and the third cutting line 103, the irregular heave plate structure can be divided into regular straight section box structure and circular arc section box structure, which is beneficial to ground line marking, assembly alignment and precision measurement.

[0047] In some other embodiments, the heave plate may be designed in other shapes, but since the heave plate is designed at the sharp end, although it is an irregular shape, it will be combined with a straight section box structure and an arc section box structure. Therefore, the heave plate construction method of the floating wind power installation platform of this embodiment is not limited to Figure 1 The shape of the heave plate shown can also be other similar structures.

[0048] Of course, in addition to the heave plate, other irregular structures, if they are composed of a straight box structure and an arc box structure, cannot be manufactured using conventional regular structure manufacturing methods and can all be constructed using the heave plate construction method of the floating wind power installation platform of this embodiment.

[0049] Steps for segmentation:

[0050] The first segment, the second segment, the third segment and the fourth segment are respectively manufactured. In this embodiment, the first segment 111, the second segment 112, the third segment 121 and the fourth segment 122 are all manufactured by the inverted construction method, and then turned over by the segmented turning over method.

[0051] In one embodiment of the present application, the inverted construction method includes: marking ground sample lines, making a small group of tire frames on the ground, laying panel sheets, installing diaphragms after assembling the panels, installing inner and outer bulkheads, and finally installing the bottom plate sheets to assemble the bottom plate, and welding the whole. Among them, the welds connected to the panels are welded for more than 20%, and after turning over, they are changed from overhead welding to flat welding and then welded. Among them, the turning over of the first segment 111, the second segment 112, the third segment 121 and the fourth segment 122 are explained below. In addition, in the drawings of the present embodiment, the invisible parts of the structural parts such as diaphragms, inner and outer bulkheads are represented by dotted lines. Since they are not the invention points of the present application, those skilled in the art can also understand them very clearly, so the drawings do not add figure marks to the structural parts such as diaphragms, inner and outer bulkheads.

[0052] Reference Figures 2 to 4 The segmented turning method of the first segment 111 and the third segment 121 includes:

[0053] A first lifting ring assembly close to the axis side is installed on the panel and bottom plate of the straight section box-type structure, and a second lifting ring assembly is installed on the outer side of the straight section box-type structure; the main hook hangs the second lifting ring assembly, and the auxiliary hook hangs the first lifting ring assembly on the bottom plate of the straight section box-type structure. The main hook and the auxiliary hook lift the straight section box-type structure, and the auxiliary hook slowly drops until it can no longer bear the force. At this time, the main hook bears the entire weight of the straight section box-type structure, and the main hook rotates 180° to rotate the straight section box-type structure 180°. The auxiliary hook hangs the first lifting ring assembly on the panel of the straight section box-type structure, and the auxiliary hook slowly rises to make the straight section box-type structure horizontal. Then the main hook and the auxiliary hook lift the straight section box-type structure to the middle group tire frame and position it.

[0054] Specifically, Figure 2 As shown, the first lifting ring assembly on the straight section box-type structure panel includes two first lifting rings, and the first lifting ring assembly on the bottom plate is manufactured and installed with reference to the first lifting ring assembly on the panel; the second lifting ring assembly includes two second lifting rings 231.

[0055] Reference Figure 5 to Figure 6 The segmented turning method of the second segment 112 and the fourth segment 122 includes:

[0056] A third lifting ring assembly close to the axis side is installed on the panel and bottom plate of the arc section box-type structure, and a fourth lifting ring assembly is installed on the outer side of the arc section box-type structure; the main hook hangs the fourth lifting ring assembly, and the auxiliary hook hangs the third lifting ring assembly on the bottom plate of the arc section box-type structure. The main hook and the auxiliary hook lift the arc section box-type structure, and the auxiliary hook slowly drops until it can no longer bear the force. At this time, the main hook bears the entire weight of the arc section box-type structure, and the main hook rotates 180° to rotate the arc section box-type structure 180°. The auxiliary hook hangs the third lifting ring assembly on the panel of the arc section box-type structure, and the auxiliary hook slowly rises to make the arc section box-type structure horizontal. Then the main hook and the auxiliary hook lift the arc section box-type structure to the middle group tire frame and position it.

[0057] Specifically, Figure 5 As shown, the third lifting ring assembly on the arc segment box-type structure panel includes two third lifting rings, and the third lifting ring assembly on the bottom plate is manufactured and installed with reference to the third lifting ring assembly on the panel; the fourth lifting ring assembly includes four fourth lifting rings 261.

[0058] It should be noted that Figures 2 to 6 In the above description, the axis side refers to the side located at the symmetry axis 104 of the heave plate; the outer side refers to the other side relative to the axis side, which can also be referred to as Figure 1 Understand that the junction of the straight segment and the arc segment refers to the connection position between the straight segment box-type structure and the arc segment box-type structure.

[0059] It should be added that when the main hook rotates 180°, it means that the rotation is carried out with the traction rope of the main hook as the axis, the purpose of which is to rotate the upright straight-section box-type structure or the arc-section box-type structure, and after completing the switching of the auxiliary hook and lifting it, the straight-section box-type structure or the arc-section box-type structure is put in a horizontal state again to complete the turning over.

[0060] Steps in segmentation:

[0061] Reference Figure 7 A middle group tire frame is set, wherein the middle group tire frame includes multiple gantry stools 410.

[0062] The first segment 111 and the second segment 112 are butt-jointed on the middle tire frame, and the closing seam is welded to form the first section 110 ; the third segment 121 and the fourth segment 122 are butt-jointed on the middle tire frame, and the closing seam is welded to form the second section 120 .

[0063] Figure 7 The positions of the first segment and the second segment 112 in the first part 110 are shown in FIG. When assembling the first segment 110, those skilled in the art may refer to FIG. Figure 7 To set up, the second part 120 is assembled with reference to the first part 110 .

[0064] It should be noted that in the segment production step and the segment assembly step, the production and docking of the first segment 111 and the second segment 112 can be completed first, and then the production and docking of the third segment 121 and the fourth segment 122 can be completed. Alternatively, after the production of the first segment 111, the second segment 112, the third segment 121 and the fourth segment 122 is completed first, the segment assembly step is performed to complete the docking of the first segment 111 and the second segment 112 and the docking of the third segment 121 and the fourth segment 122. Those skilled in the art can make adaptive adjustments with reference to specific workshop sites and production nodes.

[0065] Steps for segmentation:

[0066] The first section 110 and the second section 120 are transported to the outer field assembly site for hoisting and closing. The assembly hook 301 lifts the first section 110 and the second section 120 respectively through the assembly rope distribution method. After leaving the air, they are rotated to adjust the angle and then lowered to the assembly frame and positioned and fixed. The first section 110 and the second section 120 are docked to complete the installation of the heave plate 100.

[0067] The above-mentioned small group tire frame, middle group tire frame and overall group tire frame are tire frames corresponding to different processes. Those skilled in the art will know that the small group tire frame and the overall group tire frame can adopt conventional tire frames, which will not be repeated here.

[0068] In the current construction plan, because the floating wind power platform is in the form of an equilateral triangle structure, the heave plate 100 is located at the sharp end of the triangle and presents different angles, so the first section 110 and the second section 120 of the heave plate can only be hoisted by a single hook, and after being hoisted, they can be easily rotated to adapt to different positioning angles. The first section 110 and the second section 120 of the heave plate are composed of a straight section box-type structure and an arc section box-type structure, and the shape structure is irregular. The lifting ring setting must be aligned with the structure reinforcement. The traditional lifting ring arrangement method cannot arrange the lifting rings symmetrically, and the single hook lifting is difficult.

[0069] The overall assembly rope method includes:

[0070] like Figure 2 and Figure 8 As shown, the position of the center of gravity 114 of the straight section is marked on the panel of the straight section box-type structure; Figure 5 and Figure 8 As shown, the position of the arc segment gravity center 115 is marked on the panel of the arc segment box structure, and then the lifting reference line a is marked on the panels of the first subsection and the second subsection respectively, and the lifting reference line a passes through the straight segment gravity center 114 and the arc segment gravity center 115. Figure 8As shown, a hoisting reference line a is drawn on the panel of the first section 110, and the hoisting reference line a of the first section 110 passes through the straight section centroid 114 of the first segment 111 and the arc section centroid 115 of the second segment 112. In addition, Figure 8 The division center of gravity 113 of the first division 110 is also shown, and the division center of gravity 113 also falls on the lifting reference line a; the lifting reference line a of the second division 120 is carried out with reference to the first division 110 .

[0071] A first hoisting assembly and a second hoisting assembly are arranged on the panel of the arc segment box-type structure. The first hoisting assembly and the second hoisting assembly are distributed on both sides of the center of gravity of the arc segment. The first hoisting assembly is arranged away from the junction of the straight segment and the arc segment, and the second hoisting assembly is arranged close to the junction of the straight segment and the arc segment. The first hoisting assembly includes a first outer hoisting ring 241 and a second outer hoisting ring 251 distributed on the left and right sides of the hoisting reference line a, and the second hoisting assembly includes a first inner hoisting ring 242 and a second inner hoisting ring 252 distributed on the left and right sides of the hoisting reference line a. In the segmented turning method of the arc segment box-type structure, the two third hoisting rings used can be applied to the overall assembly rope matching method, specifically, combined with Figure 5 and Figure 6 One of the third lifting rings is used as the first inner lifting ring 242, and the other third lifting ring is used as the first outer lifting ring 241.

[0072] A third hoisting assembly and a fourth hoisting assembly are arranged on the panel of the straight section box-type structure. The third hoisting assembly and the fourth hoisting assembly are distributed on both sides of the center of gravity of the straight section. The third hoisting assembly is arranged close to the junction of the straight section and the arc section, and the fourth hoisting assembly is arranged away from the junction of the straight section and the arc section. The third hoisting assembly includes a third inner hoisting ring 212 and a fourth inner hoisting ring 222 distributed on the left and right sides of the hoisting reference line a, and the fourth hoisting assembly includes a third outer hoisting ring 211 and a fourth outer hoisting ring 221 distributed on the left and right sides of the hoisting reference line a. A reinforcing column 271 is added inside the straight section box-type structure, and the positions of the reinforcing column 271 and the second hoisting ring are on the same vertical plane. In the segmented turning method of the straight section box-type structure, the two first hoisting rings used can be applied to the overall assembly rope matching method, specifically, combined with Figures 2 to 4 One of the first lifting rings is used as the third inner lifting ring 212, and the other first lifting ring is used as the third outer lifting ring 211.

[0073] Try to make the distance between the lifting ears on the left and right sides of the lifting reference line a close to the lifting reference line a.

[0074] Two primary steel wire ropes are arranged on both sides of the main assembly hook, and each primary steel wire rope is arranged with two secondary steel wire ropes. The two secondary steel wire ropes on the inner side are respectively hung on the second lifting component and the third lifting component, and the two secondary steel wire ropes on the inner side are arranged to be passed through, and the two secondary steel wire ropes on the outer side are respectively hung on the first lifting component and the fourth lifting component, and the two secondary steel wire ropes on the outer side are not arranged to be passed through.

[0075] It should be noted that Figure 8 In the figure, the first section 110 is shown as the overall assembly rope. In order to make the overall assembly rope of the hoisting easier to understand, the first section 110 is illustrated in a rotating projection manner; in addition, the overall assembly rope of the second section 120 can refer to the first section 110. Figure 8 In the middle, the outside refers to the total assembly hook 301, and the left and right refer to the lifting reference line a. Those skilled in the art can understand it with reference to the accompanying drawings.

[0076] Specifically, the two primary steel wire ropes configured for the total group hook 301 are respectively the first primary hoisting steel wire rope 311 and the second primary hoisting steel wire rope 312. The first primary hoisting steel wire rope 311 and the second primary hoisting steel wire rope 312 are respectively arranged on the total group hook 301 to ensure that the primary steel wire rope evenly distributes the tension to each secondary steel wire rope. Among them, the total group hook 301 is a single hook. Before the first subdivision or the second subdivision is lifted, that is, when each steel wire rope is just straightened by force, the vertical projection point of the total group hook 301 falls on the lifting reference line a, ensuring that after lifting, the vertical projection point of the total group hook 301 also falls on the lifting reference line a, ensuring that the left and right sides of the first subdivision or the second subdivision are subjected to the same force after lifting. Of course, the primary and secondary steel wire ropes are matched by calculating the oblique length through the height and the horizontal plane projection length. During the design, the vertical projection point of the total assembly hook 301 after lifting is designed to also fall on the lifting reference line a. Therefore, when hanging the steel wire ropes, it is also best to let the vertical projection point of the total assembly hook 301 also fall on the lifting reference line a.

[0077] The two secondary steel wire ropes configured for the primary first hoisting steel wire rope 311 are the secondary first hoisting steel wire rope 321 and the secondary second hoisting steel wire rope 322, respectively, and are connected to the two ends of the primary first hoisting steel wire rope 311 through the first shackle 331. The secondary first hoisting steel wire rope 321 is located on the outside, and the secondary first hoisting steel wire rope 321 is composed of two steel wire ropes, which are not arranged to pass through, and are respectively hung on the two first outer lifting rings 241 and the second outer lifting ring 251 of the first hoisting component, thereby limiting the lateral flipping of the first section 110 or the second section 120. The secondary second hoisting steel wire rope 322 is composed of one steel wire rope, which is arranged to pass through, and the first inner lifting ring 242 and the second inner lifting ring 252 of the second hoisting component are respectively hung at both ends. The lengths of the primary first hoisting steel wire rope 311, the secondary first hoisting steel wire rope 321 and the secondary second hoisting steel wire rope 322 are all obtained by calculating the oblique length through the height and the horizontal plane projection length.

[0078] Those skilled in the art know that the wire rope passing through means that it can slide on the hook pulley or the shackle, and the structure connected at both ends of the wire rope can swing through the hook pulley; for example, in the present embodiment, the secondary second lifting wire rope 322 is composed of a wire rope, and the passing through setting refers to the secondary second lifting wire rope 322 passing through the first shackle 331, and the two ends are respectively connected to the first inner lifting ring 242 and the second inner lifting ring 252; if there is no other interference, the first inner lifting ring 242 and the second inner lifting ring 252 can adjust their positions, because the positions of the secondary second lifting wire rope 322 and the first shackle 331 are not fixed. The wire rope is not connected, which means that it is fixed on the hook pulley or the shackle; for example, in this embodiment, the second-level first hoisting wire rope 321 is composed of two wire ropes, and the non-connection setting means that the upper end of the two wire ropes of the second-level first hoisting wire rope 321 is fixed to the first shackle 331, and the lower end is pulled by the gravity of the first subdivision 110. Therefore, after lifting, the two wire ropes of the second-level first hoisting wire rope 321 can limit the lateral flipping of the first subdivision 110. Based on this, those skilled in the art can also understand the meaning of the third hoisting wire rope 323 being connected and the second-level fourth hoisting wire rope 324 not being connected.

[0079] The two secondary steel wire ropes configured for the first-level second hoisting steel wire rope 312 are the second-level third hoisting steel wire rope 323 and the second-level fourth hoisting steel wire rope 324, respectively, and are connected to the two ends of the first-level second hoisting steel wire rope 312 through the second shackle 332, respectively. The second-level fourth hoisting steel wire rope 324 is located on the outside. The second-level fourth hoisting steel wire rope 324 is composed of two steel wire ropes, which are not arranged to pass through, and are respectively hung on the third outer lifting ring 211 and the fourth outer lifting ring 221 of the fourth hoisting component, thereby limiting the lateral flipping of the first section 110 or the second section 120. The second-level third hoisting steel wire rope 323 is composed of one steel wire rope, which is arranged to pass through, and the two ends are respectively hung on the third inner lifting ring 212 and the fourth inner lifting ring 222 of the third hoisting component. The lengths of the first-level second hoisting steel wire rope 312, the second-level third hoisting steel wire rope 323 and the second-level fourth hoisting steel wire rope 324 are all obtained by calculating the oblique length through the height and the horizontal plane projection length.

[0080] The method for constructing the vertical swing plate of a floating wind power installation platform of this embodiment adopts a single hook to lift the first and second sections of the vertical swing plate through a reasonable rope arrangement method, after leaving the air, rotate to the required angle, slowly lower it to the main assembly frame and position it, dock the first and second sections, and complete the installation of the vertical swing plate. This embodiment solves the problem of hoisting and positioning the vertical swing plate structure at any angle, by setting lifting rings on the straight section box-type structure and the arc section box-type structure respectively, and arranging ropes according to the hoisting reference line, configuring a primary steel wire rope that runs under the main assembly hook, configuring two secondary steel wire ropes that run inside under the primary steel wire rope, and two secondary steel wire ropes that do not run outside, which can limit the lateral flipping of the first and second sections during hoisting and ensure that they are in a horizontal state during hoisting. The method for constructing the vertical swing plate of a floating wind power installation platform of this embodiment can be applied to the single hook hoisting of irregular shapes to achieve angle adjustment.

[0081] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A method for constructing a heave plate of a floating wind power installation platform, characterized in that: The following steps are involved: Segment division steps: taking the panel of the heave plate as a reference, dividing the heave plate into a first section and a second section according to a first dividing line, the first dividing line being based on the symmetry axis of the heave plate and being set in parallel with an offset d in the direction of the second section, d>0; dividing the first section into a first section and a second section according to a second dividing line, the second dividing line being set at the junction of the straight section and the circular arc section of the first section, dividing the second section into a third section and a fourth section according to a third dividing line, the third dividing line being set at the junction of the straight section and the circular arc section of the second section, the first section and the third section are both straight section box-type structures, and the second section and the fourth section are both circular arc section box-type structures; Segment production steps: produce the first segment, the second segment, the third segment and the fourth segment respectively; The step of assembling the segments in the middle: completing the butt joint of the first segment and the second segment on the middle assembly frame, welding the closing weld, and assembling into the first section; completing the butt joint of the third segment and the fourth segment on the middle assembly frame, welding the closing weld, and assembling into the second section; The steps of block assembly are as follows: transport the first and second sections to the external assembly site for hoisting and closing. The assembly hook lifts the first and second sections respectively through the assembly rope method. After leaving the air, they are rotated to adjust the angle and then slowly lowered to the assembly frame and positioned and fixed. The first and second sections are docked to complete the installation of the heave plate. The method for arranging ropes for the total assembly includes: marking the position of the center of gravity of the straight section on the panel of the straight section box-type structure, marking the position of the center of gravity of the circular arc section on the panel of the circular arc section box-type structure, and then marking the lifting reference lines on the panels of the first section and the second section respectively, the lifting reference lines passing through the center of gravity of the straight section and the center of gravity of the circular arc section; arranging the first lifting component and the second lifting component on the panel of the circular arc section box-type structure; arranging the third lifting component and the fourth lifting component on the panel of the straight section box-type structure; arranging two first-level steel wire ropes that are passed through on both sides of the total assembly hook, each first-level steel wire rope is configured with two second-level steel wire ropes, the two second-level steel wire ropes located on the inner side are respectively hung on the second lifting component and the third lifting component, the two second-level steel wire ropes located on the inner side are set to pass through, the two second-level steel wire ropes located on the outer side are respectively hung on the first lifting component and the fourth lifting component, and the two second-level steel wire ropes located on the outer side are not set to pass through.

2. The method for constructing a heave plate of a floating wind power installation platform according to claim 1, characterized in that: Before the first or second section is lifted, the vertical projection point of the total assembly hook falls on the lifting reference line.

3. The method for constructing a heave plate of a floating wind power installation platform according to claim 1 or 2, characterized in that: The two primary steel wire ropes configured on the main assembly hook are the first-level hoisting steel wire rope and the second-level hoisting steel wire rope. The first-level hoisting steel wire rope and the second-level hoisting steel wire rope are respectively set on the main assembly hook to ensure that the first-level steel wire rope evenly distributes the tension to each secondary steel wire rope.

4. The method for constructing a heave plate of a floating wind power installation platform according to claim 3, characterized in that: The first lifting component and the second lifting component are distributed on both sides of the center of gravity of the arc segment. The first lifting component is arranged far away from the junction of the straight segment and the arc segment, and the second lifting component is arranged close to the junction of the straight segment and the arc segment. The first lifting component includes a first outer lifting ring and a second outer lifting ring distributed on the left and right sides of the lifting reference line, and the second lifting component includes a first inner lifting ring and a second inner lifting ring distributed on the left and right sides of the lifting reference line.

5. The method for constructing a heave plate of a floating wind power installation platform according to claim 4, characterized in that: The two secondary steel wire ropes configured for the first-level first hoisting wire rope are the second-level first hoisting wire rope and the second-level second hoisting wire rope, and are respectively connected to the two ends of the first-level first hoisting wire rope through the first shackle, the second-level first hoisting wire rope is located on the outside, the second-level first hoisting wire rope consists of two steel wire ropes, which are not set up through, and are respectively hung on the two first outer lifting rings and the second outer lifting ring of the first lifting component, so as to limit the lateral flipping of the first section or the second section, the second-level second hoisting wire rope consists of one steel wire rope, which is set up through, and the two ends are respectively hung on the first inner lifting ring and the second inner lifting ring of the second lifting component, and the lengths of the first-level first hoisting wire rope, the second-level first hoisting wire rope and the second-level second hoisting wire rope are all obtained by calculating the oblique length through the height and the horizontal plane projection length.

6. The method for constructing a heave plate of a floating wind power installation platform according to claim 4, characterized in that: The third lifting assembly and the fourth lifting assembly are distributed on both sides of the center of gravity of the straight section. The third lifting assembly is arranged close to the junction of the straight section and the arc section, and the fourth lifting assembly is arranged far away from the junction of the straight section and the arc section. The third lifting assembly includes a third inner lifting ring and a fourth inner lifting ring distributed on the left and right sides of the lifting reference line, and two second outer lifting rings. The fourth lifting assembly includes a third outer lifting ring and a fourth outer lifting ring distributed on the left and right sides of the lifting reference line.

7. The method for constructing a heave plate of a floating wind power installation platform according to claim 6, characterized in that: The two secondary steel wire ropes configured for the first-level second lifting wire rope are the second-level third lifting wire rope and the second-level fourth lifting wire rope, and are respectively connected to the two ends of the first-level second lifting wire rope through the second shackle, and the second-level fourth lifting wire rope is located on the outside. The second-level fourth lifting wire rope is composed of two steel wire ropes, which are not set up through the arrangement, and are respectively hung on the third outer lifting ring and the fourth outer lifting ring of the fourth lifting component, thereby limiting the lateral flipping of the first section or the second section. The second-level third lifting wire rope is composed of one steel wire rope, which is set up through the arrangement, and the two ends are respectively hung on the third inner lifting ring and the fourth inner lifting ring of the third lifting component. The lengths of the first-level second lifting wire rope, the second-level third lifting wire rope and the second-level fourth lifting wire rope are all obtained by calculating the oblique length through the height and the horizontal plane projection length.

8. The method for constructing a heave plate of a floating wind power installation platform according to claim 6, characterized in that: In the segmented production step, the first segment, the second segment, the third segment and the fourth segment are all produced by the inverted construction method, and then turned over by the segmented turning over method respectively; wherein, The segmented turning method of the first segment and the third segment includes: installing a first lifting ring assembly close to the axis side on both the panel and the bottom plate of the straight segment box-type structure, and installing a second lifting ring assembly on the outer side of the straight segment box-type structure; the main hook hangs the second lifting ring assembly, the auxiliary hook hangs the first lifting ring assembly on the bottom plate of the straight segment box-type structure, the main hook and the auxiliary hook lift the straight segment box-type structure, and the auxiliary hook falls until it can no longer bear the force, at which time the main hook bears the entire weight of the straight segment box-type structure, the main hook rotates 180°, so that the straight segment box-type structure rotates 180°, the auxiliary hook hangs the first lifting ring assembly on the panel of the straight segment box-type structure, the auxiliary hook is lifted, so that the straight segment box-type structure is in a horizontal state, and then the main hook and the auxiliary hook lift the straight segment box-type structure to the middle group tire frame and position and fix it; The segmented turning over method of the second segment and the fourth segment includes: installing a third lifting ring assembly close to the axis side on the panel and the bottom plate of the arc segment box-type structure, and installing a fourth lifting ring assembly on the outer side of the arc segment box-type structure; the main hook hangs the fourth lifting ring assembly, and the auxiliary hook hangs the third lifting ring assembly on the bottom plate of the arc segment box-type structure, the main hook and the auxiliary hook lift the arc segment box-type structure, and the auxiliary hook falls until it can no longer bear the force. At this time, the main hook bears the entire weight of the arc segment box-type structure, the main hook rotates 180° to rotate the arc segment box-type structure 180°, the auxiliary hook hangs the third lifting ring assembly on the panel of the arc segment box-type structure, the auxiliary hook is lifted to make the arc segment box-type structure in a horizontal state, and then the main hook and the auxiliary hook lift the arc segment box-type structure to the middle group tire frame and position and fix it.

9. The method for constructing a heave plate of a floating wind power installation platform according to claim 8, characterized in that: In the segmented assembly step, one of the first lifting rings is used as the third inner lifting ring, and the other first lifting ring is used as the third outer lifting ring; in the segmented assembly step, one of the third lifting rings is used as the first inner lifting ring, and the other third lifting ring is used as the first outer lifting ring.

10. The method for constructing a heave plate of a floating wind power installation platform according to claim 8, characterized in that: The inverted construction method includes: marking ground sample lines, making small group frames on the ground, laying panel sheets, installing transverse partitions, installing inner and outer bulkheads, and finally installing bottom plate sheets for overall welding, of which more than 20% of the welds connected to the panel are welded; after turning over, the overhead welding is changed to flat welding and then continued with welding.

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