An assembled platform for offshore wind power four-pile pipe frame foundation construction

Abstract

The present invention discloses an assembled platform for offshore wind power four-pile jacket foundation construction, which comprises: an anti-sinking sub-platform and a top-level sub-platform connected to the anti-sinking sub-platform through a plurality of support modules, wherein the anti-sinking sub-platform comprises: a plurality of first column connection modules spliced ​​together horizontally, a plurality of engineering pile casing modules respectively located between every two adjacent first column connection modules, and a plurality of anti-sinking plate modules respectively located between an adjacent first column connection module and an engineering pile casing module; the top-level sub-platform comprises: a plurality of second column connection modules spliced ​​together horizontally, a plurality of pile sinking modules, and a plurality of connection structure modules respectively located between an adjacent second column connection module and an adjacent pile sinking module. The present invention effectively solves the problems of low reuse rate of jacket foundation construction platform and large processing and transformation workload.

Description

Technical Field

[0001] The invention relates to an assembled platform for offshore wind power four-pile conductor frame foundation construction. Background Art

[0002] In recent years, with the increase of offshore projects in my country, especially the booming development of the wind power industry, common offshore wind power foundation types at home and abroad include single pile foundation, jacket foundation, high pile foundation, gravity foundation and floating foundation. Among them, the jacket foundation has been widely used in offshore wind farms at home and abroad in recent years because it can adapt to deep water conditions. The jacket foundation generally uses steel pipe piles as the foundation structure. The pile sinking accuracy and verticality will directly affect the horizontality of the jacket, and then affect the stability of the wind turbine tower structure. At present, the construction platform positioning and pile stabilization scheme are mainly used for the control of the jacket foundation pile sinking accuracy.

[0003] At present, the design of the jacket foundation construction platform needs to be combined with the engineering construction conditions, and a special construction platform is designed and manufactured. The reuse rate is low and the processing and transformation workload is large.

[0004] Therefore, there is an urgent need to develop a multifunctional assembled construction platform suitable for jacket foundation construction operations to maximize the utilization rate of the jacket foundation construction platform and reduce construction costs. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the prior art and provide an assembled platform for offshore wind power four-pile jacket foundation construction, so as to ensure the standardization of modules and interfaces through the modular construction design of the platform, maximize the utilization rate of the platform and reduce the construction cost.

[0006] The present invention provides an assembled platform for offshore wind power four-pile jacket foundation construction, which comprises:

[0007] An anti-sinking sub-platform and a top sub-platform connected to the anti-sinking sub-platform via a plurality of support modules, wherein:

[0008] The anti-sinking sub-platform comprises: a plurality of first column connection modules spliced ​​together horizontally, a plurality of engineering pile casing modules respectively located between every two adjacent first column connection modules, and a plurality of anti-sinking plate modules respectively located between an adjacent first column connection module and an adjacent engineering pile casing module, wherein:

[0009] Each of the first column connection modules comprises: a first anti-sinking plate, a first column vertically passing through the center of the first anti-sinking plate and fixedly connected thereto, and a plurality of first main beams equally spaced and embedded in the first anti-sinking plate and having one end connected to the outer peripheral surface of the first column;

[0010] Each of the anti-sinking plate modules comprises: a second anti-sinking plate and a second main beam embedded in the second anti-sinking plate;

[0011] Each of the engineering pile casing modules comprises: a casing and two third main beams which are symmetrically arranged and one end of which is connected to the outer peripheral surface of the casing;

[0012] The top sub-platform includes: a plurality of second column connection modules spliced ​​together horizontally, a plurality of pile sinking modules respectively located between every two adjacent second column connection modules, and a plurality of connection structure modules respectively located between an adjacent second column connection module and a pile sinking module, wherein:

[0013] Each of the second column connection modules comprises: a cubic connection frame, a connection panel mounted on the top of the cubic connection frame, and a second column vertically passing through the center of the connection panel and fixedly connected thereto, wherein the bottom end of the second column is butted against a first column through a support module;

[0014] The positions of the pile driving modules correspond to the positions of the engineering pile casing modules one by one, and each of the pile driving modules comprises: a U-shaped three-dimensional frame and a U-shaped panel installed on the top of the U-shaped three-dimensional frame, and an arc-shaped steel plate is fixedly connected vertically downward from the arc edge of the U-shaped panel;

[0015] Each of the connection structure modules comprises: a plurality of connection pipes horizontally connected between the second column connection module and the pile driving module, and a structural panel installed above the connection pipes and flush with the connection panel and the U-shaped panel.

[0016] In the above-mentioned assembled platform for offshore wind power four-pile jacket foundation construction, each of the support modules includes: two third column connecting submodules vertically spliced ​​together and a fourth column located between the two third column connecting submodules.

[0017] In the above-mentioned assembled platform for offshore wind power four-pile conductor frame foundation construction, each of the third column connection submodules includes: a third column and a plurality of column flanges installed at equal intervals on the outer peripheral surface of the third column.

[0018] In the above-mentioned assembled platform for the construction of the offshore wind power four-pile conductor frame foundation, the bottom end of a third column connection submodule in each of the support modules is connected to a first column connection module by a flange connection method, the top end of another third column connection submodule is connected to a second column connection module by a flange connection method, and the fourth column is connected to the third column connection module by a flange connection method.

[0019] In the above-mentioned assembled platform for offshore wind power four-pile jacket foundation construction, a plurality of anti-sinking plate reinforcing ribs arranged in a crisscross pattern are provided on the bottom surface of each of the first anti-sinking plate and the second anti-sinking plate.

[0020] In the above-mentioned prefabricated platform for the construction of the offshore wind power four-pile conductor frame foundation, each of the first column connection modules includes four first main beams, and the other end of each of the first main beams is flush with an edge of the first anti-sinking plate; the two ends of each of the second main beams are respectively flush with the two opposite edges of the second anti-sinking plate on which it is located.

[0021] In the above-mentioned assembled platform for offshore wind power four-pile conductor frame foundation construction, one end of the second main beam in each anti-sinking plate module is connected to the first main beam by a flange connection, and the other end is connected to the third main beam in the engineering pile casing module by a flange connection.

[0022] In the above-mentioned assembled platform for offshore wind power four-pile jacket foundation construction, each of the cubic connection frames is constructed by four first support columns and eight first cross beams, and a first reinforcing brace is vertically connected between every two first cross beams located in the same vertical plane;

[0023] Each of the U-shaped three-dimensional frames is constructed by four second support columns and six second cross beams, and a second reinforcing support connected to the outer arc surface of the circular arc steel plate is horizontally installed at the intersection of every two adjacent second cross beams and a second support column located in the same horizontal plane.

[0024] In the above-mentioned assembled platform for offshore wind power four-pile conductor frame foundation construction, each of the connection structure modules includes four connecting pipes arranged parallel to each other, and the two ends of each of the connecting pipes are respectively connected between a first beam and a second beam located in the same horizontal plane by flange connection.

[0025] In the above-mentioned prefabricated platform for construction of offshore wind power four-pile jacket foundation, the prefabricated platform is a steel structure platform.

[0026] Based on the above technical scheme, the present invention forms a top sub-platform, an anti-sinking sub-platform and a supporting module through the connection between each module and the sub-module, and then forms an overall assembled platform for four-pile jacket foundation construction through the connection between the top sub-platform, the anti-sinking sub-platform and the supporting module, thereby effectively solving the problem of low reuse rate and large processing and transformation workload of the four-pile jacket foundation construction platform in the prior art due to the inability to disassemble and assemble, and the present invention has relatively high stability, convenient installation and disassembly and can be recycled, and the verticality and precision control of the engineering piles during construction are guaranteed. In addition, the present invention also has the advantages of easy installation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of an assembled platform for offshore wind power four-pile jacket foundation construction according to the present invention;

[0028] Figure 2 It is a top view of the structure of the anti-sinking sub-platform in the present invention;

[0029] Figure 3 It is a structural stereogram of the first column connection module of the anti-sinking sub-platform in the present invention;

[0030] Figure 4 It is a structural side view of the first column connection module of the anti-sinking sub-platform in the present invention;

[0031] Figure 5 It is a structural stereogram of the anti-sinking plate module of the anti-sinking sub-platform in the present invention;

[0032] Figure 6 It is a structural bottom view of the anti-sinking plate module of the anti-sinking sub-platform in the present invention;

[0033] Figure 7 It is a structural stereogram of the engineering pile casing module of the anti-sinking sub-platform in the present invention;

[0034] Figure 8 It is a structural side view of the engineering pile casing module of the anti-sinking sub-platform in the present invention;

[0035] Fig. 9 It is a top view of the structure of the top sub-platform in the present invention;

[0036] Fig.10 It is a structural stereogram of the second column connection module of the top sub-platform in the present invention;

[0037] Fig.11 It is a structural side view of the second column connection module of the top sub-platform in the present invention;

[0038] Fig.12 It is a structural stereogram of the pile sinking module of the top sub-platform in the present invention;

[0039] Fig.13 It is a structural side view of the pile driving module of the top sub-platform in the present invention;

[0040] Fig.14 It is a structural stereogram of the connection structure module of the top sub-platform in the present invention;

[0041] Fig.15 It is a structural stereogram of the support module in the present invention;

[0042] Fig.16It is a structural stereogram of the third column connection submodule of the support module in the present invention;

[0043] Fig.17 It is a structural side view of the third column connection submodule of the support module in the present invention;

[0044] Fig.18 It is a structural stereogram of the fourth column of the support module in the present invention. DETAILED DESCRIPTION

[0045] The present invention will be further described below in conjunction with the accompanying drawings.

[0046] See also Figure 1 The present invention, that is, an assembled platform for the construction of an offshore wind power four-pile conductor frame foundation, comprises: a U-shaped anti-sinking sub-platform 1 and a U-shaped top-level sub-platform 3 connected to the anti-sinking sub-platform 1 through a plurality of support modules 2.

[0047] like Figure 2 As shown, the anti-sinking sub-platform 1 includes: 4 first column connection modules 11 spliced ​​together horizontally, 4 engineering pile casing modules 13 respectively located between every two adjacent first column connection modules 11, and 8 anti-sinking plate modules 12 respectively located between adjacent first column connection modules 11 and engineering pile casing modules 13, wherein:

[0048] like Figure 3 to Figure 4 As shown, each first column connection module 11 includes: a first anti-sinking plate 111, a first column 112 that vertically passes through the center of the first anti-sinking plate 111 and is fixedly connected thereto, and a plurality of first main beams 113 that are equally spaced and embedded in the first anti-sinking plate 111 and one end of which is connected to the outer peripheral surface of the first column 112, wherein a plurality of anti-sinking plate reinforcing ribs 14 arranged in a criss-cross pattern are provided on the bottom surface of the first anti-sinking plate 111. In this embodiment, the first column 112 is a hollow structure and a column connection flange 100 is provided on the top thereof, each first column connection module 11 includes four first main beams 113, and the other end of each first main beam 113 is flush with an edge of the first anti-sinking plate 111; the thickness of the anti-sinking plate reinforcing ribs 14 on the bottom surface of the first anti-sinking plate 111 does not exceed the radius of the first main beam 113; each first column connection module 11 is a steel structure and is integrally welded and finely processed;

[0049] like Figure 5 to Figure 6As shown, each anti-sinking plate module 12 includes: a second anti-sinking plate 121 and a second main beam 122 embedded in the second anti-sinking plate 121, wherein a plurality of anti-sinking plate reinforcing ribs 14 arranged in a crisscross pattern are provided on the bottom surface of the second anti-sinking plate 121. In this embodiment, the two ends of each second main beam 122 are respectively flush with the two opposite edges of the second anti-sinking plate 121 where it is located; the thickness of the anti-sinking plate reinforcing ribs 14 on the bottom surface of the second anti-sinking plate 121 does not exceed the radius of the second main beam 122; each anti-sinking plate module 12 is a steel structure and is integrally welded and finely processed;

[0050] like Figures 7 and 8 As shown, each engineering pile casing module 13 includes: a vertically arranged casing 131 and two symmetrically arranged third main beams 132 with one end connected to the outer peripheral surface of the casing 131;

[0051] In this embodiment, one end of the second main beam 122 in each anti-sinking plate module 12 is connected to the first main beam 113 by a flange connection, and the other end is connected to the third main beam 132 in the engineering pile casing module 13. Specifically, the other end of the first main beam 113, the other end of the third main beam 132 and both ends of the second main beam 122 are respectively provided with connecting flanges 200.

[0052] During the construction of the four-pile jacket foundation, the engineering pile casing module 13 in the anti-sinking sub-platform 1 is used to sleeve the engineering piles to fix them in the construction platform, which can meet the construction accuracy and verticality requirements. The anti-sinking sub-platform 1 relies on the foundation bearing capacity of the seabed mud surface to provide temporary vertical support and also provides a certain rigidity for the entire construction platform.

[0053] like Fig. 9 As shown, the top sub-platform 3 includes: 4 second column connection modules 31 spliced ​​together horizontally, 4 pile sinking modules 32 respectively located between every two adjacent second column connection modules 31, and 8 connection structure modules 33 respectively located between an adjacent second column connection module 31 and a pile sinking module 32, wherein:

[0054] like Figure 10 to Figure 11As shown, each second column connection module 31 includes: a cubic connection frame 311, a connection panel 312 installed on the top of the cubic connection frame 311, and a second column 313 vertically passing through the center of the connection panel 312 and fixedly connected thereto, wherein the bottom end of the second column 313 is butted against the first column 112 through the support module 2. In this embodiment, each cubic connection frame 311 is constructed by four first support columns 3111 and eight first beams 3112, and a first reinforcing brace 3113 for reinforcing the bearing capacity of the second column connection module 31 is vertically connected between every two first beams 3112 located in the same vertical plane; the surface layer of the connection panel 312 is a steel plate, which is connected to the first beam 3112 on the top surface of the cubic connection frame 311 through an I-beam; the second column 313 is a hollow structure and a column connection flange 100 is provided at the top and bottom ends thereof respectively; each second column connection module 31 is a steel structure and is integrally welded and finely processed;

[0055] like Figure 12 to Figure 13 As shown, the position of the pile driving module 32 corresponds to the position of the engineering pile casing module 13, and each pile driving module 32 includes: a U-shaped stereoscopic frame 321 and a U-shaped panel 322 installed on the top of the U-shaped stereoscopic frame 321, wherein a circular arc steel plate 323 is fixedly connected vertically downward from the circular arc edge of the U-shaped panel 322. In this embodiment, each U-shaped stereoscopic frame 321 is constructed by four second support columns 3211 and six second cross beams 3212, and a second reinforcing support 3213 connected to the outer arc surface of the circular arc steel plate 323 is horizontally installed at the intersection of every two adjacent second cross beams 3212 and a second support column 3211 located in the same horizontal plane; the surface layer of the U-shaped panel 322 is a steel plate, which is connected to the second cross beam 3212 on the top surface of the U-shaped stereoscopic frame 321 through an I-beam; each pile driving module 32 is a steel structure and is integrally welded and finely processed;

[0056] like Fig.14 As shown, each connection structure module 33 includes: a plurality of connection pipes 331 horizontally connecting the second column connection module 31 and the pile driving module 32, and a structural panel 332 installed above the connection pipes 331 and flush with the connection panel 312 and the U-shaped panel 322. In this embodiment, each connection structure module 33 includes 4 connection pipes 331 arranged in parallel with each other, and the two ends of each connection pipe 331 are respectively connected between a first beam 3112 and a second beam 3212 located in the same horizontal plane by flange connection. Specifically, the two ends of the connection pipe 331, the first beam 3112 and the second beam 3212 are respectively provided with connection flanges 200; the surface layer of the structural panel 332 is a steel plate, which is connected to the top connection pipe 331 through an I-beam; each connection structure module 33 is a steel structure and is integrally welded and finely processed;

[0057] In this embodiment, connecting flanges 200 are also respectively provided at both ends of each first supporting column 3111 and each second supporting column 3211 .

[0058] During the construction of the four-pile conductor frame foundation, the pile sinking module 32 in the top sub-platform 3 is also called the engineering pile dragon mouth, which is used to sink and fix the engineering piles so that the construction accuracy and verticality can meet the requirements. The top sub-platform 3 not only provides the top jack thrust for single pile construction, but also provides a working platform for construction personnel and observation equipment, and also provides a certain rigidity for the entire construction platform.

[0059] like Figures 15 to 18 As shown, each support module 2 includes: two third column connecting submodules 21 vertically spliced ​​together and a fourth column 22 located between the two third column connecting submodules 21, wherein each third column connecting submodule 21 includes: a third column 211 and a plurality of column flanges 212 evenly spaced and installed on the outer circumference of the third column 211. In this embodiment, each third column connecting submodule 21 and the fourth column 22 are steel structures and are integrally welded and finely processed.

[0060] In this embodiment, the bottom end of the third column connecting submodule 21 at the bottom of each supporting module 2 is connected to the first column connecting module 11 by a flange connection method, the top end of the third column connecting submodule 21 at the top of each supporting module 2 is connected to the second column connecting module 31 by a flange connection method, and the fourth column 22 is connected to the third column connecting submodule 21 by a flange connection method. Specifically, each third column 211 and each fourth column 22 are hollow structures and their top and bottom ends are respectively provided with column connecting flanges 100. The third column 211 at the bottom of each supporting module 2 is connected to the first column 112 through the column connecting flange 100, the third column 211 at the top is connected to the second column 313 through the column connecting flange 100, and both ends of the fourth column 22 are connected to the two third columns 211 through the column connecting flanges 100; after the first column 112 to the fourth column 22 are connected in sequence, auxiliary piles can be inserted into them.

[0061] During the construction of the four-pile jacket foundation, the support module 2 is the main load-bearing structure of the entire construction platform, bearing the vertical load, and is also used for the socketing of the auxiliary piles and connecting and fixing with the auxiliary equipment.

[0062] The method of use of the present invention is as follows:

[0063] First, the above modules and sub-modules are manufactured by integral welding and finishing;

[0064] Secondly, the modules are assembled to form a top sub-platform, an anti-sinking sub-platform and a supporting module, and then the top sub-platform, the anti-sinking sub-platform and the supporting module are assembled to form an overall U-shaped assembled platform, wherein the size of each module or platform is changed according to different construction environments, usage functions, design requirements and operation needs to assemble platforms of different shapes and structures;

[0065] Once the construction platform is assembled, it is transported to the construction site by barge and hoisted to the sea using lifting equipment.

[0066] Finally, insert each auxiliary pile into the first to fourth columns and fix them, followed by the sinking of four engineering piles.

[0067] In summary, the present invention forms a top-level sub-platform, an anti-sinking sub-platform and a supporting module through the assembly of various modules and sub-modules, which are then assembled into an assembled platform for the construction of a four-pile jacket foundation. The modularity of the assembled platform maximizes the utilization rate of the construction platform, reduces the cost of construction, ensures the requirements for construction accuracy and verticality, and also reduces the damage and pollution to the marine ecological environment. Among them, the setting of the pile driving module and the engineering pile casing module enables the construction accuracy and the verticality of the pile driving to be effectively guaranteed.

[0068] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those skilled in the relevant technical field may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by the claims.

Claims

1. An assembled platform for offshore wind power four-pile conductor frame foundation construction, characterized in that: The fabricated platform comprises: an anti-sinking sub-platform and a top sub-platform connected to the anti-sinking sub-platform via a plurality of support modules, wherein: The anti-sinking sub-platform comprises: a plurality of first column connection modules spliced ​​together horizontally, a plurality of engineering pile casing modules respectively located between every two adjacent first column connection modules, and a plurality of anti-sinking plate modules respectively located between an adjacent first column connection module and an adjacent engineering pile casing module, wherein: Each of the first column connection modules comprises: a first anti-sinking plate, a first column vertically passing through the center of the first anti-sinking plate and fixedly connected thereto, and a plurality of first main beams equally spaced and embedded in the first anti-sinking plate and having one end connected to the outer peripheral surface of the first column; Each of the anti-sinking plate modules comprises: a second anti-sinking plate and a second main beam embedded in the second anti-sinking plate; Each of the engineering pile casing modules comprises: a casing and two third main beams which are symmetrically arranged and one end of which is connected to the outer peripheral surface of the casing; The top sub-platform includes: a plurality of second column connection modules spliced ​​together horizontally, a plurality of pile sinking modules respectively located between every two adjacent second column connection modules, and a plurality of connection structure modules respectively located between an adjacent second column connection module and a pile sinking module, wherein: Each of the second column connection modules comprises: a cubic connection frame, a connection panel mounted on the top of the cubic connection frame, and a second column vertically passing through the center of the connection panel and fixedly connected thereto, wherein the bottom end of the second column is butted against a first column through a support module; The positions of the pile driving modules correspond to the positions of the engineering pile casing modules one by one, and each of the pile driving modules comprises: a U-shaped three-dimensional frame and a U-shaped panel installed on the top of the U-shaped three-dimensional frame, and an arc-shaped steel plate is fixedly connected vertically downward from the arc edge of the U-shaped panel; Each of the connection structure modules comprises: a plurality of connection pipes horizontally connected between the second column connection module and the pile driving module, and a structural panel installed above the connection pipes and flush with the connection panel and the U-shaped panel.

2. The assembled platform for offshore wind power four-pile jacket foundation construction according to claim 1 is characterized in that: Each of the support modules comprises: two third column connecting submodules vertically spliced ​​together and a fourth column located between the two third column connecting submodules.

3. The assembled platform for offshore wind power four-pile jacket foundation construction according to claim 2 is characterized in that: Each of the third column connecting submodules comprises: a third column and a plurality of column flanges which are installed at equal intervals on the outer peripheral surface of the third column.

4. The assembled platform for offshore wind power four-pile jacket foundation construction according to claim 2 or 3, characterized in that: The bottom end of a third column connection submodule in each of the supporting modules is connected to a first column connection module by a flange connection, the top end of another third column connection submodule is connected to a second column connection module by a flange connection, and the fourth column is connected to the third column connection module by a flange connection.

5. The assembled platform for offshore wind power four-pile jacket foundation construction according to claim 1 is characterized in that: A plurality of anti-sinking plate reinforcing ribs arranged in a crisscross pattern are provided on the bottom surface of each of the first anti-sinking plate and the second anti-sinking plate.

6. The assembled platform for offshore wind power four-pile jacket foundation construction according to claim 1 or 5, characterized in that: Each of the first column connection modules includes four first main beams, and the other end of each of the first main beams is flush with an edge of the first anti-sinking plate; the two ends of each of the second main beams are respectively flush with two opposite edges of the second anti-sinking plate where they are located.

7. The assembled platform for offshore wind power four-pile jacket foundation construction according to claim 6 is characterized in that: One end of the second main beam in each anti-sinking plate module is butted with the first main beam by a flange connection, and the other end is butted with the third main beam in the engineering pile casing module by a flange connection.

8. The assembled platform for offshore wind power four-pile jacket foundation construction according to claim 1 is characterized in that: Each of the cubic connection frames is constructed by four first support columns and eight first crossbeams, and a first reinforcing brace is vertically connected between every two first crossbeams located in the same vertical plane; Each of the U-shaped three-dimensional frames is constructed by four second support columns and six second cross beams, and a second reinforcing support connected to the outer arc surface of the circular arc steel plate is horizontally installed at the intersection of every two adjacent second cross beams and a second support column located in the same horizontal plane.

9. The assembled platform for offshore wind power four-pile jacket foundation construction according to claim 8, characterized in that: Each of the connection structure modules includes four connection pipes arranged in parallel with each other, and both ends of each of the connection pipes are respectively connected between a first crossbeam and a second crossbeam located in the same horizontal plane by means of flange connection.

10. The assembled platform for offshore wind power four-pile jacket foundation construction according to claim 1, characterized in that: The assembled platform is a steel structure platform.

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