CN214695710U - Combined structure system of single-pile foundation and floating type fan - Google Patents
Combined structure system of single-pile foundation and floating type fan Download PDFInfo
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- CN214695710U CN214695710U CN202120069555.7U CN202120069555U CN214695710U CN 214695710 U CN214695710 U CN 214695710U CN 202120069555 U CN202120069555 U CN 202120069555U CN 214695710 U CN214695710 U CN 214695710U
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- fan
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- catamaran
- pile foundation
- floating
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- 238000007667 floating Methods 0.000 title claims abstract description 37
- 238000009434 installation Methods 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 8
- 238000005188 flotation Methods 0.000 description 20
- 210000001503 joint Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000037433 frameshift Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
A combined structure system of a single-pile foundation and a floating fan belongs to the field of ocean engineering and is a fan foundation structure system capable of being transported and installed in an integral floating mode. When in use, the combined structure system is matched with a special catamaran for installation. The offshore wind power foundation structure can realize the integral floating installation of the fan buoy assembly, the assembly of the fan buoy assembly is completed at a wharf, and the step can be carried out simultaneously with the construction of a single-pile foundation, so that the difficulty of offshore construction and installation is reduced, and the time for installing the fan buoy assembly at sea is saved; meanwhile, the method does not depend on a large-scale offshore installation platform, saves offshore construction equipment cost, can obviously reduce offshore wind power installation cost, meets the requirements of large-scale offshore wind power construction, cost reduction and efficiency improvement, and has high popularization value.
Description
Technical Field
The utility model belongs to the ocean engineering field relates to offshore wind power field, especially relates to a composite structure system of single pile basis and floating fan.
Background
At present, components such as a fixed fan-tower cylinder, an engine room, a hub, fan blades and the like of offshore wind power are generally installed in a modularized mode, namely, the components on the upper portion are transported to a designated place in batches respectively, and then are sequentially hoisted and installed by using a self-elevating installation ship, so that the mode is expensive in equipment and insufficient in resources, the requirement on the leg length of the installation ship is higher especially under the conditions of water depth of more than 50 meters and thick silt layers, and domestic corresponding installation ship resources are scarce; in addition, the offshore operation time is longer, and compared with land hoisting installation, the offshore operation environment is complicated and changeable, the hoisting construction difficulty is large, and the construction progress and quality are difficult to control. Therefore, it is necessary to provide an offshore wind turbine combination structural system capable of being integrally installed, the floating wind turbine installation of the novel structural system does not depend on a self-elevating installation vessel, the offshore operation time is short, and the comprehensive efficiency is very superior.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model discloses to offshore wind turbine structure characteristics, provide a floating fan that can wholly float transportation and installation and the foundation structure form that corresponds, specifically say so that the integrated configuration system of a single pile basis and floating fan (hereinafter for short fan flotation pontoon assembly).
The utility model adopts the technical proposal that:
a combined structure system of a single-pile foundation and a floating fan is a fan foundation structure system capable of being transported and installed in an overall floating mode, the combined structure system comprises a lower fixed single-pile foundation 2 and an upper fan buoy assembly structure 1, and the fixed single-pile foundation 2 is a large-diameter steel pile which is pre-driven into a seabed. When in use, the combined structure system is matched with the special catamaran 6 for installation.
The fan and buoy combined structure 1 is divided into an upper fan 3 and a lower buoy 4 by taking a flange surface below a tower barrel as a dividing point. The upper fan 3 comprises a fan, blades, a tower drum, related components and the like; the lower float bowl 4 comprises a float bowl, a load adjusting pump, a partition plate, a water injection pipe, a water pumping pipe and the like, wherein the partition plate, the water injection pipe, the water pumping pipe and the like are arranged in the float bowl.
The flotation pontoon 4 is installed in the tower section of thick bamboo below of upper portion fan 3, and the flotation pontoon top is connected through flange 5 with tower section of thick bamboo bottom, and the flotation pontoon bottom is equipped with the connection interface with fixed single pile basis 2 and pier single pile basis 10. The buoy is provided with a fixing hole 13 which is fixedly connected with the catamaran.
The floating barrel adopts a bin-dividing design, and a partition plate is arranged in the floating barrel; the floating cylinder is externally provided with a load adjusting pump, and the floating cylinder is internally provided with a water injection pipe and a water drainage pipe which are communicated with the floating cylinder inner chamber and the load adjusting pump. The floating barrels are filled with water and drained by the external load adjusting pump and the built-in water injection drain pipe, the floating and sinking of the fan and floating barrel combined structure 1 in water can be controlled, the gradient of the fan and floating barrel combined structure in water can be controlled by controlling the water amount of different cabins, and the leveling of the fan and floating barrel combined structure 1 is realized.
The special catamaran 6 comprises two hull structures and is a special auxiliary boat for transporting and installing the fan and buoy combined structure 1, a plurality of supporting frames 7 can be arranged on the hull structures, the supporting frames 7 on the two hull structures are symmetrically arranged, and each fan and buoy combined structure 1 is positioned between the two symmetrically arranged supporting frames 7. The top of the supporting frame 7 is provided with a vertical slide rail 8 connected with the upper fan 3, the vertical slide rail 8 can stretch and retract, clamping and releasing of a fan structure tower cylinder are achieved, horizontal and vertical support is provided for the fan and buoy assembly, and the vertical slide rail 8 can allow the fan and buoy assembly structure 1 to vertically slide; and the connecting rods A9 are arranged on the opposite side surfaces of the two hulls of the special catamaran 6, and the connecting rods A9 can be inserted into the fixing holes 13 on the lower buoy 4 in a telescopic mode to provide vertical support for the fan buoy combination body.
Further, the buoy is fixedly connected with the catamaran, and specifically comprises: when the wharf is assembled, the connecting rod B11 extending out of the underwater support 12 is fixed to the fixing hole 13 on the buoy, so that stable standing is realized; during transportation, the connecting rod A9 on the catamaran 6 is inserted into the connecting rod A9 and is completely fixed, so that the catamaran and the fan buoy combination are integrated during transportation.
A double-ship installation method of a single-pile foundation and floating fan combined structure system comprises the following steps:
1) and (5) constructing a single-pile foundation.
And a fixed single-pile foundation 2 is installed at a designated machine position, and the fixed single-pile foundation 2 is a steel pipe.
2) And finishing the assembly of the fan buoy assembly structure 1 at the wharf.
The blower, the blades, the tower barrel, the buoy, the load adjusting pump, the water injection and pumping pipe and other parts are assembled into an integral blower and buoy combined structure 1. The top of the buoy 4 of the fan-buoy combined structure 1 is connected with the bottom of the tower barrel of the upper fan 3 through the flange 5, the fan-buoy combined structure 1 is seated on the wharf single-pile foundation 10, and the underwater support 12 extends out of the connecting rod B11 to be fixed in the fixing hole 13 of the buoy, so that stability is realized.
3) And the fan buoy assembly is used for launching water.
The fan and pontoon combined structure 1 is transferred to a special catamaran 6, the fan and pontoon combined structure 1 is arranged between a pair of supporting frames 7, a fan tower cylinder of the fan and pontoon combined structure 1 is clamped by vertical sliding rails 8, vertical sliding of the vertical sliding rails 8 is locked, and a connecting rod A9 is inserted into a fixing hole 13 on a pontoon, so that the fan and pontoon combined structure and the catamaran are fixed into a whole.
4) Transportation fan flotation pontoon assembly structure 1.
And integrally transporting the fan buoy assembly structure 1 and the catamaran 6 to a construction position.
5) And positioning the fan buoy assembly structure 1.
And (3) adjusting the position of the catamaran 6 by using an anchoring system or a DP system, and moving the fan and buoy assembly structure 1 above the fixed single-pile foundation 2 constructed in the step 1), so that the lower end interface of the buoy of the fan and buoy assembly structure 1 is aligned with the underwater fixed single-pile foundation 2, and positioning is completed.
7) The fan buoy assembly structure 1 is in butt joint with the fixed single-pile foundation 2.
And releasing the vertical connection between the fan and buoy combined structure 1 and the catamaran 6, namely, retracting the connecting rod A9 and releasing the vertical fixation of the vertical slide rails 8, simultaneously keeping the horizontal support of the vertical slide rails 8, and then injecting water into the buoy 4 for ballasting to enable the fan and buoy combined structure 1 to sink and be in butt joint with the fixed single-pile foundation 2. The inclination of the fan and buoy combined structure 1 is monitored at any time in the butt joint process, the water amount in each sub-cabin of the buoy 4 is adjusted according to the posture of the fan and buoy combined structure 1, the verticality of the fan and buoy combined structure 1 is guaranteed, and the leveling of the fan and buoy combined structure 1 is realized.
8) Grouting and connecting.
After the fan and buoy assembly structure 1 is in place and is in butt joint, the gradient of the fan is measured, and if the requirement of installation accuracy is met, grouting or other modes are performed between the connection positions of the fan and buoy assembly structure 1 and the single-pile foundation 2.
9) And (5) finishing the installation.
And (3) completely releasing the horizontal connection between the support frame 7 and the fan tower cylinder on the catamaran 6, namely retracting the vertical slide rails 8, and withdrawing the catamaran 6 to finish the installation.
The utility model provides a fan flotation pontoon assembly can float in the surface of water with the help of the flotation pontoon, transfers through the flotation pontoon and carries, can realize wholly rising and sinking, connects fixedly through the catamaran with special design, becomes a whole with the catamaran, guarantees its stability etc. in aqueous. 1. The wharf is integrally shipped, the fan buoy assembly is assembled at the wharf in advance, the buoy is seated on the foundation of the wharf in a single pile form and is fixed by the connecting rod extending out of the underwater support, and stability is achieved. The catamaran takes one's place, and the vertical slide rail connection structure that can lock that braced frame top layer set up on the catamaran stretches out its connecting rod, and the fixed fan tower section of thick bamboo of horizontal direction, the connecting rod on the release wharf under water support, the flotation pontoon drainage drives fan flotation pontoon assembly come-up, and top layer frame shifts up along the slide rail simultaneously, and the assembly comes-up to the vertical position of towing boat design, and catamaran bottom connecting rod stretches out, and is fixed with the flotation pontoon, possesses the transportation condition of towing boat. 2. During transportation, the fan and pontoon combination body sails along with the catamaran through the connecting structure arranged at the bottom of the catamaran and the rigid connection of the pontoon; the vertical sliding rail connecting structure capable of being locked is arranged through the supporting frame on the catamaran and is rigidly connected with the middle tower barrel of the fan buoy assembly, so that the fan buoy assembly is guaranteed to be stably transported to a fan position along with the stability of the catamaran during navigation. 3. When the wind turbine generator buoy assembly is in place, the anchoring system or the DP system of the catamaran is used for realizing positioning right above the single-pile foundation, and the bottom end interface of the wind turbine generator buoy assembly is aligned to the underwater single-pile foundation. And then, the connection between the bottom of the catamaran and the buoy is released, the vertical connection between the frame and the fan tower drum on the catamaran is released, the horizontal connection between the frame and the fan tower drum is kept, the buoy is used for ballasting, the tower drum in the middle of the fan moves downwards along the slide rail of the connecting structure, the integral sinking of the fan and buoy assembly is realized, the load regulation is carried out on each cabin of the buoy in the sinking process, the integral level is controlled, and the buoy is in butt joint with the single-pile foundation through the bottom guide structure of the buoy and is in position. 4. And after the measurement meets the requirement of installation accuracy, grouting is carried out to connect the annular gap between the floating barrel and the single pile foundation, after the grouting strength meets the requirement, the horizontal connection between the frame and the fan tower barrel on the catamaran is completely released, and the catamaran is withdrawn to finish the installation.
The utility model has the advantages that:
the offshore wind power foundation structure can realize the integral floating installation of the fan buoy assembly, the assembly of the fan buoy assembly is completed at a wharf, and the step can be carried out simultaneously with the construction of a single-pile foundation, so that the difficulty of offshore construction and installation is reduced, and the time for installing the fan buoy assembly at sea is saved; meanwhile, the method does not depend on a large-scale offshore installation platform, saves offshore construction equipment cost, can obviously reduce offshore wind power installation cost, meets the requirements of large-scale offshore wind power construction, cost reduction and efficiency improvement, and has high popularization value.
Drawings
FIG. 1 is a diagram of the offshore installation completion achievement of the utility model;
FIG. 2 is a structural diagram of the floating drum assembly of the fan of the present invention;
FIG. 3 is a diagram of the assembled landing stage of the fan-buoy assembly of the present invention (without the upper fan portion);
FIG. 4 is a diagram of a special catamaran (including a support frame) required for installation of the present invention;
FIG. 5 is a schematic diagram of the floating state of the blower buoy assembly of the present invention after being connected with a catamaran;
FIG. 6 is a schematic view of the installation and positioning process of the fan-float assembly of the present invention;
FIG. 7 is a schematic view of the blower buoy assembly of the present invention being ballasted, sunk and in place;
FIG. 8 is a schematic diagram of the evacuation of the catamaran after the installation of the fan-buoy assembly of the present invention;
in the figure: 1, a fan buoy assembly structure; 2, a fixed single pile foundation; 3 an upper fan; 4, a buoy; 5, a flange; 6, a catamaran; 7 supporting the frame; 8, a vertical slide rail; 9 connecting rod A; 10 wharf single-pile foundation; 11 connecting rod B; 12, supporting underwater; 13 fixing the hole.
Detailed Description
In order to thoroughly understand the present invention, the following further description of the present invention with reference to the accompanying drawings proposes a detailed structure. It is apparent that the practice of the invention is not limited to the specific details known to those skilled in the art. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.
The following detailed description of embodiments of the present invention is made.
The utility model provides a but offshore wind turbine foundation structure system of integral showy installation, the structure contains fan flotation pontoon assembly structure 1 and fixed single pile basis 2, wherein fan flotation pontoon assembly structure 1 divide into upper portion fan 3 and lower part flotation pontoon 4. The flotation pontoon 4 mountable is in the tower section of thick bamboo bottom of upper fan 3, and the flotation pontoon top is connected through flange 5 with tower section of thick bamboo bottom, and the flotation pontoon bottom is equipped with guide structure, assists flotation pontoon lower part connector and single pile foundation 2 centering to insert. The buoy adopts a subdivision design, and a partition plate is arranged in the buoy. The floating barrel inner chamber is injected with water and drained through the external load regulating pump and the internal pipeline, and floating and sinking of the fan and floating barrel assembly in water can be controlled. And the inclination of the fan and buoy assembly in water can be controlled by controlling the water amount of different cabins, so that the leveling of the fan and buoy assembly is realized.
The buoy is provided with a positioning fixing hole 13, and when the wharf is assembled, a connecting rod B11 extending out of the underwater support 12 is fixed to the positioning fixing hole 13 on the buoy, so that stable standing is realized; during transportation, the connecting rod A9 on the catamaran 6 is inserted into the connecting rod A9 and is completely fixed, so that the catamaran and the fan buoy combination are integrated during transportation.
The special catamaran 6 is a special auxiliary ship for transporting and installing the fan-buoy combined body structure 1, a support frame 7 is arranged on the catamaran, vertical slide rails 8 and connecting rods A9 which are connected with the fan-buoy combined body are arranged at the bottom and the top of the frame 7 respectively and used for providing horizontal support and vertical support for the fan-buoy combined body, and the vertical slide rails 8 can allow the fan-buoy combined body to vertically slide.
The installation steps of the offshore wind power foundation structure system are as follows:
1) and (5) constructing a single-pile foundation. And (3) installing the fixed single-pile foundation 2 at the appointed machine position, wherein the step is similar to the construction of the common single-pile fan foundation, namely, piling construction is carried out at the machine position of the fan, and the steel pipe pile is driven into the seabed by using a piling hammer.
2) And assembling the fan buoy assembly wharf. And the fan and buoy assembly is assembled at the wharf, and the fan, the blades, the tower barrel, the buoy and other parts are assembled into the integral fan and buoy assembly structure 1. The upper portion of the buoy 4 of the fan buoy assembly is connected with the bottom of the tower barrel through the flange 5, the fan buoy assembly structure 1 can sit on the wharf single-pile foundation 10 through the lower cylindrical connector of the buoy 4, and the connecting rod B11 extending out of the underwater support 12 is fixed to the fixing hole 13 in the buoy, so that stability is achieved.
3) And the fan buoy assembly is used for launching water. The fan and pontoon combined structure 1 is transferred to a special catamaran 6, the fan and pontoon combined structure 1 is placed between a pair of supporting frames 7, a vertical slide rail 8 is used for clamping a fan tower cylinder, vertical sliding is locked, and a connecting rod A9 is inserted into a fixing hole 13 on a pontoon, so that the fan and pontoon combined structure and the catamaran are fixed into a whole.
4) And (5) transporting the fan buoy assembly. And integrally transporting the fan buoy assembly and the catamaran to a construction position.
5) And positioning the fan buoy assembly. And (3) adjusting the position of the catamaran by using an anchoring system or a DP system, moving the fan and pontoon combination body above the single-pile foundation, and guiding the lower end of the pontoon to be aligned with the underwater single pile 2 to finish positioning.
7) The combination body is butted with the single pile foundation. The vertical sliding of the vertical sliding rail 8 is released, the connecting rod A9 is packed up, the horizontal support of the vertical sliding rail 8 is kept, and then the water injection of the buoy is carried out for ballasting, so that the fan-buoy combined body sinks and is in butt joint with the single pile foundation. The inclination of the fan buoy assembly is monitored at any time in the process, the water amount in each subdivision of the buoy is adjusted according to the posture of the fan buoy assembly, the verticality of the fan buoy assembly is guaranteed, and the leveling of the fan buoy assembly is achieved.
8) Grouting and connecting. And after the fan buoy assembly is in place and is in butt joint, measuring the gradient of the fan, and if the requirement of installation accuracy is met, grouting or connecting in other modes between the fan buoy assembly and the single-pile foundation connection position.
9) And (5) finishing the installation. And (4) completely releasing the horizontal connection of the frame and the fan tower drum on the catamaran, and withdrawing the catamaran to finish the installation.
This novel marine wind power foundation structure system can realize that the whole installation that floats of fan flotation pontoon assembly, and the equipment of fan flotation pontoon assembly is whole to be accomplished at the pier, has reduced the degree of difficulty of marine installation work. The fan buoy assembly can be constructed simultaneously with the single-pile foundation, so that the time for installation on the sea is saved. Meanwhile, the method does not depend on a large-scale offshore installation platform, saves offshore construction equipment cost, can obviously reduce offshore wind power installation cost, meets the requirements of large-scale offshore wind power construction, cost reduction and efficiency improvement, and has high popularization value.
The above-mentioned embodiments only represent the embodiments of the present invention, but can not be understood as the limitation of the scope of the present invention, and it should be noted that, for those skilled in the art, a plurality of variations and improvements can be made without departing from the concept of the present invention, and all of them belong to the protection scope of the present invention.
Claims (2)
1. A combined structure system of a single-pile foundation and a floating fan is characterized in that the combined structure system is a fan foundation structure system capable of being transported and installed in an integral floating mode, and comprises a fixed single-pile foundation (2) below, a fan and buoy combined body structure (1) above and a special catamaran (6), wherein the fixed single-pile foundation (2) is pre-driven into a seabed; when in use, the combined structure system is matched with a special catamaran (6) for installation;
the fan and buoy combined structure (1) is divided into an upper fan (3) and a lower buoy (4) by taking a flange surface below a tower cylinder as a boundary point; the upper fan (3) comprises a fan, blades and a tower drum; the lower buoy (4) comprises a buoy, a load adjusting pump, a partition plate, a water injection pipe and a water pumping pipe, wherein the partition plate, the water injection pipe and the water pumping pipe are arranged in the buoy;
the floating cylinder (4) is arranged below the tower cylinder of the upper fan (3), the top of the floating cylinder is connected with the bottom of the tower cylinder through a flange (5), and the bottom of the floating cylinder is provided with a connecting interface with the fixed single-pile foundation (2) and the wharf single-pile foundation (10); the buoy is provided with a fixing hole (13) which is fixedly connected with the catamaran;
the floating barrel (4) adopts a bin-dividing design, and a partition plate is arranged in the floating barrel; a load adjusting pump is arranged outside the buoy, a water injection pipe and a water drainage pipe are arranged in the buoy, and the inner cabin of the buoy and the load adjusting pump are communicated;
the special catamaran (6) comprises two hull structures, and is a special auxiliary boat for transporting and installing the fan and buoy combined structure (1), the hull structures are provided with a plurality of supporting frames (7), the supporting frames (7) on the two hull structures are symmetrically arranged, and each fan and buoy combined structure (1) is positioned between the two symmetrically arranged supporting frames (7); the top of the supporting frame (7) is provided with a vertical sliding rail (8) connected with the upper fan (3), and the vertical sliding rail (8) can stretch and retract, so that the tower drum of the fan structure can be clamped and released, and horizontal and vertical supports are provided for the structure of the fan buoy assembly; the connecting rods A (9) arranged on the opposite side surfaces of the two hulls of the special catamaran (6) can be inserted into the fixing holes (13) on the lower buoy (4) in a telescopic mode, and vertical support is provided for the structure of the fan buoy assembly.
2. The combined structure system of the single-pile foundation and the floating wind turbine as claimed in claim 1, wherein the connection and fixation of the pontoon and the catamaran are as follows: when the wharf is assembled, a connecting rod B (11) extending out of the underwater support (12) is connected to a fixing hole (13) on the buoy; during transportation, the connecting rod A (9) on the catamaran (6) is inserted into the connecting rod A to finish the fixation.
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CN202120069555.7U CN214695710U (en) | 2021-01-12 | 2021-01-12 | Combined structure system of single-pile foundation and floating type fan |
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CN202120069555.7U CN214695710U (en) | 2021-01-12 | 2021-01-12 | Combined structure system of single-pile foundation and floating type fan |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112814014A (en) * | 2021-01-12 | 2021-05-18 | 大连理工大学 | Combined structure system of single-pile foundation and floating type fan and double-ship installation method |
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2021
- 2021-01-12 CN CN202120069555.7U patent/CN214695710U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112814014A (en) * | 2021-01-12 | 2021-05-18 | 大连理工大学 | Combined structure system of single-pile foundation and floating type fan and double-ship installation method |
CN112814014B (en) * | 2021-01-12 | 2024-05-28 | 大连理工大学 | Combined structure system of single pile foundation and floating fan and double-ship installation method |
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