CN112761128A - Offshore wind power double-body installation platform and cylindrical foundation installation method - Google Patents
Offshore wind power double-body installation platform and cylindrical foundation installation method Download PDFInfo
- Publication number
- CN112761128A CN112761128A CN202110088667.1A CN202110088667A CN112761128A CN 112761128 A CN112761128 A CN 112761128A CN 202110088667 A CN202110088667 A CN 202110088667A CN 112761128 A CN112761128 A CN 112761128A
- Authority
- CN
- China
- Prior art keywords
- mounting platform
- platform
- cylindrical foundation
- installation
- righting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Mechanical Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses an offshore wind power double-body installation platform and a cylindrical foundation installation method, wherein the installation platform is used for installing a cylindrical foundation and comprises a first installation platform and a second installation platform which are symmetrically arranged in opposite directions, the cylindrical foundation is embedded between the first installation platform and the second installation platform and is connected with the first installation platform and the second installation platform into a whole, the outer side wall, the front side wall and the rear side wall of the first installation platform and the outer side wall, the front side wall and the rear side wall of the second installation platform are respectively provided with a buoyancy tank, each buoyancy tank is provided with a positioning pile hole, a positioning pile penetrates through each positioning pile hole, and the positioning pile and the corresponding buoyancy tank can slide up and down relatively; the sliding devices are in one-to-one correspondence with the positioning piles, and the first mounting platform, the cylindrical foundation and the second mounting platform which are connected into a whole can slide downwards along the positioning piles under the action of the sliding devices. The invention solves the problem that foundations with different cylinder diameters cannot be stably installed and constructed, is flexible and mobile on the basis of realizing large-scale transportation of cylinder foundations, is stable in transportation, and is convenient to maintain and replace.
Description
Technical Field
The invention relates to an offshore wind power foundation installation technology, in particular to an offshore wind power double-body installation platform and a cylindrical foundation installation method.
Background
In recent years, the cylindrical foundation gradually replaces the traditional foundation form and is widely applied to the field of offshore wind power foundation installation. Compare in traditional pile foundation, the foundation construction is carried out through the negative pressure mode of sinking to the section of thick bamboo type basis, and foundation structure antidumping ability reinforce, and possess complete machine installation function. The whole machine is installed, and for prefabricating and assembling at the bank of foundation, tower section of thick bamboo, cabin etc. whole towing to appointed place integral erection subsides afterwards, the construction cycle of marine wind power basis is greatly simplified to this technique. A barrel type foundation and complete machine installation technology is adopted in part of offshore shallow water offshore wind power plants in China.
In the existing floating transportation process of the hexagonal cylindrical foundation, all side walls of the small cylindrical foundation cannot be fixed, and the towing stability of the foundation with different cylindrical diameters needs to be improved; the whole machine is difficult to stably sink under the environment of combined action of wind, waves and currents because the whole machine is towed and sinks in the installation process; in addition, because the towing ship is huge, effective connection of towing-sinking processes cannot be realized generally, so that a plurality of risks exist in the connection process; the installation of the cylindrical foundation mostly needs to use hoisting equipment, and the cost of the foundation installation is high due to the fact that too much hoisting equipment and ships are rented. Therefore, a new way is to provide a quick, safe, efficient and economic cylindrical foundation installation platform and an installation method to solve the technical problem of foundation installation work.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an offshore wind power double-body installation platform and a cylindrical foundation installation method.
The technical scheme adopted by the invention is as follows: an offshore wind power catamaran mounting platform for mounting a bucket foundation, the mounting platform comprising:
the cylindrical foundation is embedded between the first mounting platform and the second mounting platform and is connected with the first mounting platform and the second mounting platform into a whole; the side, far away from the second mounting platform, of the first mounting platform is the outer side, the side, close to the second mounting platform, of the second mounting platform is the inner side, the side, far away from the first mounting platform, of the second mounting platform is the outer side, the side, close to the first mounting platform, of the second mounting platform is the inner side, the outer side wall, the front side wall and the rear side wall of the first mounting platform and the outer side wall, the front side wall and the rear side wall of the second mounting platform are respectively provided with a floating box, each floating box is provided with a positioning pile hole penetrating through the upper surface and the lower surface of the floating box, each positioning pile hole is internally provided with a positioning pile, and the positioning pile and the floating box corresponding to the positioning; and the number of the first and second groups,
the sliding device is provided with a plurality of groups and corresponds to the positioning piles one by one, and the first mounting platform, the cylindrical foundation and the second mounting platform are connected into a whole and can slide downwards along the positioning piles under the action of the sliding device.
Furthermore, two groups of foundation fixing and adjusting devices are arranged on the inner side portions of the first mounting platform and the second mounting platform, the two groups of foundation fixing and adjusting devices on the first mounting platform are symmetrically arranged about the central axis of the first mounting platform, and the two groups of foundation fixing and adjusting devices on the second mounting platform are symmetrically arranged about the central axis of the second mounting platform;
every group basis fixed adjusting device includes:
the first slideway is arranged in the upper surface of the first mounting platform or the second mounting platform and is arranged along the inner side edge of the first mounting platform or the second mounting platform;
the second slide way is arranged in the inner side wall of the first mounting platform or the second mounting platform;
the sliding block is arranged in the second slide way and can slide along the second slide way; and the number of the first and second groups,
the operating rod is arranged in the first slideway and can slide and be fixed along the first slideway; the lower extreme of control rod with slider fixed connection for thereby the slider can slide along the drive of control rod the second slide tightly detains the lateral wall of cartridge type basis is in order to be suitable for the cartridge type basis of different section of thick bamboo footpaths.
Furthermore, the mounting platform further comprises a centering device, a plurality of groups of centering devices are arranged on the inner side parts of the first mounting platform and the second mounting platform, lifting lugs corresponding to the centering devices one by one are arranged on the cylindrical foundation, third slide ways are respectively arranged in the upper surfaces of the first mounting platform and the second mounting platform, and the third slide ways are arranged along the inner side edges of the first mounting platform or the second mounting platform;
every group righting device includes:
the righting pulley is arranged in the third slideway and can slide and be fixed along the third slideway;
a righting winch disposed on an upper surface of the first mounting platform or the second mounting platform and disposed proximate an inner side of the first mounting platform or the second mounting platform; and the number of the first and second groups,
one end of the righting cable is connected to the lifting lug corresponding to the righting device, and the other end of the righting cable is connected with the righting winch after passing around the righting pulley;
the righting winch tightens the righting cable by winding the righting cable, so that the whole body formed by the first mounting platform, the barrel-shaped foundation and the second mounting platform maintains a horizontal sinking posture in the sinking process.
Further, each set of the gliding devices comprises:
the pull-down pulley is arranged at the bottom of the positioning pile corresponding to the sliding device;
a pull-down winch disposed on an upper surface of the first mounting platform or the second mounting platform and disposed proximate an outer side of the first mounting platform or the second mounting platform; and the number of the first and second groups,
one end of the pull-down cable is connected to the bottom of the cylindrical foundation, and the other end of the pull-down cable is connected with the pull-down winch after passing around the pull-down pulley;
and the pull-down winch drives the whole body consisting of the first mounting platform, the cylindrical foundation and the second mounting platform to slide downwards along the positioning pile by winding the pull-down cable.
Furthermore, the first mounting platform and the second mounting platform are both box-type structures, seawater valves are arranged at the bottoms of the first mounting platform and the second mounting platform, and water can be pressurized and drained into the first mounting platform or the second mounting platform through the seawater valves so as to facilitate sinking and floating of the mounting platforms; the inner side shape of the first mounting platform is matched with the left side shape of the cylindrical foundation, and the inner side shape of the second mounting platform is matched with the right side shape of the cylindrical foundation.
Furthermore, the inner side wall of each buoyancy tank is fixedly connected with the first mounting platform or the second mounting platform, and a detachably connected snap ring is arranged on the outer side wall opposite to the inner side wall and used for tightly connecting adjacent mounting platforms.
Furthermore, each buoyancy tank is internally provided with an inflating bin, and the buoyancy tank can float automatically after being inflated.
Further, a bottom platform is arranged at the bottom of each positioning pile.
Furthermore, the top of the cylindrical foundation is provided with a water pumping hole for connecting a water pumping device.
The other technical scheme adopted by the invention is as follows: a cylindrical foundation installation method based on an offshore wind power double-body installation platform comprises the following steps:
8, controlling the sliding blocks to loosen the side wall of the cylindrical foundation through the operating levers of the first mounting platform and the second mounting platform, and removing the connection between all the pull-down cables and the bottom of the cylindrical foundation and the connection between all the pull-up cables and the lifting lugs;
and step 10, inflating the buoyancy tank to enable the first mounting platform and the second mounting platform to float upwards, and completing mounting of the cylindrical foundation.
The invention has the beneficial effects that: the mounting platform starts from the perspective of reducing the use of mounting hoisting equipment and renting shipping ships, solves the problem that foundations with different cylinder diameters cannot be stably mounted and constructed, is flexible and mobile, is stable in transportation and convenient to maintain and replace on the basis of realizing large-scale transportation of cylinder foundations. Firstly, a double-body mounting platform which is symmetrically arranged and is provided with a movable sliding block is adopted to mount a hexagonal cylindrical foundation, free access of any cylindrical foundation can be guaranteed in the assembly process, the effect of fixing all side walls of the cylindrical foundation for floating transportation is achieved, the stability of complete machine floating transportation and overall sinking mounting of the cylindrical foundation is guaranteed, the complicated procedure of separate mounting of the foundation, a tower barrel, a cabin and blades is simplified, and the offshore construction mounting efficiency is greatly improved; secondly, the traditional hoisting equipment is replaced by reasonably arranging lifting lugs, centering pulleys and centering winch assemblies, so that the cylindrical foundation is ensured to sink and be installed to keep a good posture, and expensive hoisting equipment and floating ships are prevented from being rented additionally; thirdly, the arrangement form of the positioning piles combined with the base platform is adopted, the direction of the cylindrical foundation is ingeniously changed through the pull-down pulleys on the base platform, so that the cylindrical foundation can sink stably, equipment for providing pull-down force is prevented from being rented additionally, complicated equipment sinking work is simplified, and the device is economical, safe, simple and convenient; fourthly, the small buoyancy tanks on the front side and the two sides of the installation platform ensure the stability of the floating transportation and installation processes of the platform, provide space for the arrangement of the positioning piles, save the operation space on the platform and facilitate the connection between the installation ships for large-scale transportation.
Drawings
FIG. 1 is a schematic structural view of the mounting platform of the present invention;
FIG. 2 is a schematic view of the floating attitude configuration of the installation platform of the present invention;
FIG. 3 is a schematic view of the bottom seated position of the mounting platform of the present invention;
FIG. 4 is a schematic top view of the mounting platform of the present invention;
FIG. 5 is a schematic bottom view of the mounting platform of the present invention;
FIG. 6 is a partial schematic view of the mounting platform of the present invention;
fig. 7 is a schematic diagram of a large-scale floating structure of the present invention.
The attached drawings are marked as follows:
1-a first mounting platform; 2-a second mounting platform;
3-cylinder type foundation; 4-buoyancy tank;
5-positioning pile; 6-a submersible platform;
7-first slideway; 8-third slideway;
9-second slideway; 10-joystick;
11-righting pulley; 12-lifting lug;
13-a slide block; 14-a retaining ring;
15-righting winch; 16-pull down pulley;
17-pull-down winch;
i-sea bed surface.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
as shown in fig. 1 to 6, the offshore wind power double-body installation platform is used for installing a cylindrical foundation 3, in this embodiment, the cylindrical foundation 3 is a hexagonal cylindrical foundation, the side wall is lengthwise 28m to 32m, and the cylinder skirt is tall 16m to 18 m. The top of the cylindrical foundation 3 is provided with a water pumping hole for connecting water pumping equipment.
The mounting platform comprises a first mounting platform 1, a second mounting platform 2, a sliding device, a righting device and the like.
The first mounting platform 1 and the second mounting platform 2 are identical in structure, 15-20 m in length and 20-32 m in width, and are symmetrically arranged in a left-right opposite direction; the first mounting platform 1 and the second mounting platform 2 are both box-type structures, and seawater valves are arranged at the bottoms of the first mounting platform 1 and the second mounting platform 2 and can be used for pressurizing and draining water into the mounting platforms so as to facilitate sinking and floating of the mounting platforms.
Establish first mounting platform 1 is kept away from one side of second mounting platform 2 is the outside, is close to one side of second mounting platform 2 is the inboard, second mounting platform 2 is kept away from one side of first mounting platform 1 is the outside, is close to one side of first mounting platform 1 is the inboard, the inboard shape of first mounting platform 1 with the left side shape of cartridge type basis 3 agrees with mutually, the inboard shape of second mounting platform 2 with the right side shape of cartridge type basis 3 agrees with mutually, in this embodiment, because cartridge type basis 3 is hexagon cartridge type basis, consequently, first mounting platform 1 with the inside wall of second mounting platform 2 comprises two lateral walls that are the V type, and the contained angle of this both sides wall is 120. The cylindrical foundation 3 is embedded between the first mounting platform 1 and the second mounting platform 2 and is tightly connected with the first mounting platform 1 and the second mounting platform 2 to form a whole, wherein the connection mode is that the inner angles of the first mounting platform 1 and the second mounting platform 2 and the cylindrical foundation 3 are fastened, the cylindrical foundation 3 is fastened and fixed through the sliding blocks 13 on the two sides of the mounting platform, and then the three parts are bound and connected into a whole through cables.
The outer side wall and the front and rear side walls of the first mounting platform 1 and the outer side wall and the front and rear side walls of the second mounting platform 2 are respectively provided with a buoyancy tank 4, and the length, the width and the height of each buoyancy tank 4 are 4 m-8 m. The inner side wall of each buoyancy tank 4 is fixedly connected with the first installation platform 1 or the second installation platform 2, and the outer side wall opposite to the inner side wall is provided with a detachably connected snap ring 14 for tight connection between adjacent installation platforms so as to realize large-scale floating transportation, as shown in fig. 7. Every all be provided with the storehouse of aerifing in the flotation tank 4, flotation tank 4 can be from floating after aerifing. Each buoyancy tank 4 is provided with a positioning pile hole which penetrates through the upper surface and the lower surface of the buoyancy tank 4 and has a diameter of 1.5 m-2.5 m, a positioning pile 5 penetrates through each positioning pile hole, the diameter of each positioning pile 5 is 1.5 m-2.5 m, the height of each positioning pile 5 is 30 m-40 m, and each positioning pile 5 can slide up and down through each positioning pile hole; the bottom of the positioning pile 5 is provided with a base platform 6, and the length and the width of the base platform 6 are both 3 m-5 m and the height is 0.5 m-1 m.
The inner sides of the first mounting platform 1 and the second mounting platform 2 are respectively provided with two groups of basic fixing and adjusting devices, the two groups of basic fixing and adjusting devices on the first mounting platform 1 are symmetrically arranged about the axis of the first mounting platform 1, and the two groups of basic fixing and adjusting devices on the second mounting platform 2 are symmetrically arranged about the axis of the second mounting platform 2. Each group of basic fixing and adjusting devices comprises a first slideway 7, a second slideway 9, a sliding block 13 and an operating lever 10, wherein the first slideway 7 is arranged in the upper surface of the first mounting platform 1 or the second mounting platform 2 and is arranged along the inner side edge of the first mounting platform 1 or the second mounting platform 2; the second slideway 9 is arranged in the inner side wall of the first mounting platform 1 or the second mounting platform 2 and is arranged in the middle; the sliding block 13 is arranged in the second slideway 9 and can slide along the second slideway 9; the control rod 10 is arranged in the first slide way 7 and can slide and be fixed along the first slide way 7, the lower end of the control rod 10 is fixedly connected with the sliding block 13, so that the sliding block 13 can slide along the second slide way 9 under the driving of the control rod 10 to change the inner space so as to tightly buckle the side wall of the cylindrical foundation 3, and the cylindrical foundation 3 with different cylindrical diameters can be fixed.
The inner sides of the first mounting platform 1 and the second mounting platform 2 are provided with three groups of centering devices, and the total number of the centering devices is six. In order to be matched with a centering device, lifting lugs 12 which are in one-to-one correspondence with the centering device are arranged on the cylindrical foundation 3, and the central angle between the lifting lugs 12 is 60 degrees; third slide ways 8 are respectively formed in the upper surfaces of the first mounting platform 1 and the second mounting platform 2, the third slide ways 8 are arranged along the inner side edges of the first mounting platform 1 or the second mounting platform 2, the third slide ways 8 on the first mounting platform 1 are symmetrically arranged about the central axis of the first mounting platform 1, and the third slide ways 8 on the second mounting platform 2 are symmetrically arranged about the central axis of the second mounting platform 2. Each group of righting devices comprises a righting pulley 11, a righting winch 15 and a righting cable, wherein the righting pulley 11 is arranged in the third slideway 8 and can slide and be fixed along the third slideway 8, and the plane of the righting cable penetrating through the righting pulley 11 is mutually vertical to the plane of the hole of the lifting lug 12 so as to be smoothly connected; the righting winch 15 is arranged on the upper surface of the first mounting platform 1 or the second mounting platform 2 and close to the inner side of the first mounting platform 1 or the second mounting platform 2; one end of the righting cable is connected to a lifting lug 12 corresponding to the righting device, and the other end of the righting cable is connected with the righting winch 15 after passing around the righting pulley 11; wherein the righting winch 15 tightens the righting cable by winding the righting cable, so that the whole body composed of the first mounting platform 1, the barrel-shaped foundation 3 and the second mounting platform 2 maintains a horizontal sinking posture in the sinking process.
The sliding device is provided with six groups, corresponds to the positioning piles 5 one by one, and is connected into a whole, namely the first mounting platform 1, the cylindrical foundation 3 and the second mounting platform 2 can slide downwards along the positioning piles 5 under the action of the sliding device. Specifically, each group of the sliding devices comprises a pull-down pulley 16, a pull-down winch 17 and a pull-down cable, wherein the pull-down pulley 16 is arranged on the inner side of the bottom platform 6 at the bottom of the positioning pile 5 corresponding to the sliding device; the lower pulling winch 17 is arranged on the upper surface of the first mounting platform 1 or the second mounting platform 2 and is close to the outer side of the first mounting platform 1 or the second mounting platform 2; one end of the pull-down cable is connected to the bottom of the cylindrical foundation 3, and the other end of the pull-down cable is connected with the pull-down winch 17 after passing around the pull-down pulley 16, in this embodiment, because the cylindrical foundation 3 is hexagonal, the connection position of the pull-down cable and the cylindrical foundation 3 is the angular point of the cylindrical foundation 3; wherein the pull-down winch 17 drives the whole body consisting of the first mounting platform 1, the cylindrical foundation 3 and the second mounting platform 2 to slide downwards along the positioning pile 5 by winding the pull-down cable.
Wherein, the righting pulley 11 and the pull-down pulley 16 are both fixed pulleys for changing the direction of force. The length of the righting pulley 11 and the length of the pulling-down pulley 16 are 0.8-1.2 m, the width of the pulling-down pulley is 0.3-0.5 m, and the height of the pulling-down pulley is 0.8-1.2 m.
The cylindrical foundation 3 for mounting the offshore wind power double-body mounting platform comprises the following steps:
And 2, accurately butting the inner side wall of the second mounting platform 2 with the unfixed side wall of the cylindrical foundation 3, and moving the slide block 13 by controlling the operating rod 10 on the second mounting platform 2 to ensure that the slide block 13 tightly buckles the side wall of the cylindrical foundation 3 to realize bilateral fixation so as to ensure that the whole cylindrical foundation 3 is stably floated and sunk.
And 3, carrying the whole body consisting of the first mounting platform 1, the cylindrical foundation 3 and the second mounting platform 2 to a target mounting field area in a floating mode.
And 4, connecting the first mounting platform 1 with the cylindrical foundation 3, the second mounting platform 2 with the cylindrical foundation 3 through the righting device, connecting one end of a righting cable with a lifting lug 12 corresponding to the righting device on the cylindrical foundation 3 in each group of righting devices, and connecting the other end of the righting cable with a righting winch 15 through a righting pulley 11, wherein the righting cable always has a certain tension in the mounting process so as to ensure that the whole sinking process formed by the first mounting platform 1, the cylindrical foundation 3 and the second mounting platform 2 does not have a large inclination angle and maintain a horizontal sinking posture.
And 6, lowering the positioning piles 5 on the first mounting platform 1 and the second mounting platform 2 until the bottom sitting platform 6 at the lower part of the positioning pile 5 is completely connected with the seabed surface I so as to ensure the stability of the whole body formed by the first mounting platform 1, the cylindrical foundation 3 and the second mounting platform 2 in the mounting construction process.
And 7, starting a pull-down winch 17, driving the whole body consisting of the first mounting platform 1, the cylindrical foundation 3 and the second mounting platform 2 to slide downwards along the positioning pile 5 at a uniform speed to the cylindrical foundation 3 to be completely connected with the sea bed surface I through a pull-down cable.
And 8, controlling the slide block 13 to loosen the side wall of the cylindrical foundation 3 through the operating levers 10 of the first mounting platform 1 and the second mounting platform 2, respectively removing the connection between the six groups of pull-down cables and the bottom corner point of the cylindrical foundation 3, and respectively contacting the six groups of pull-up cables and the lifting lugs 12.
And step 9, forming negative pressure in the bin of the cylindrical foundation 3 through a water pumping device, and penetrating into the sea bed surface I under the action of different pressure differences inside and outside the cylinder.
And step 10, inflating the buoyancy tank 4 to enable the first mounting platform 1 and the second mounting platform 2 to float upwards, and mounting the cylindrical foundation 3. The first installation platform 1 and the second installation platform 2 are transported to the next construction site in a floating manner.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (10)
1. An offshore wind power twin mounting platform for mounting a cylindrical foundation (3), characterised in that it comprises:
the cylindrical foundation (3) is embedded between the first mounting platform (1) and the second mounting platform (2) and is connected with the first mounting platform (1) and the second mounting platform (2) into a whole; one side, far away from the second mounting platform (2), of the first mounting platform (1) is an outer side, one side, close to the second mounting platform (2) is an inner side, one side, far away from the first mounting platform (1), of the second mounting platform (2) is an outer side, one side, close to the first mounting platform (1) is an inner side, the outer side wall and the front and rear side walls of the first mounting platform (1) and the outer side wall and the front and rear side walls of the second mounting platform (2) are respectively provided with a floating box (4), each floating box (4) is provided with a positioning pile hole penetrating through the upper surface and the lower surface of the floating box (4), each positioning pile hole is internally provided with a positioning pile (5), and the positioning piles (5) and the floating boxes (4) corresponding to the positioning piles (5) can relatively slide up and down; and the number of the first and second groups,
the sliding device is provided with a plurality of groups and corresponds to the positioning piles (5) one by one, and the first mounting platform (1), the cylindrical foundation (3) and the second mounting platform (2) are connected into a whole and can slide downwards along the positioning piles (5) under the action of the sliding device.
2. Offshore wind power catamaran installation platform according to claim 1, characterized in that both the first installation platform (1) and the second installation platform (2) are provided at their inner sides with two sets of basic fixed adjustment means, the two sets of basic fixed adjustment means on the first installation platform (1) being arranged symmetrically with respect to the axis in the first installation platform (1) and the two sets of basic fixed adjustment means on the second installation platform (2) being arranged symmetrically with respect to the axis in the second installation platform (2);
every group basis fixed adjusting device includes:
the first slideway (7) is arranged in the upper surface of the first mounting platform (1) or the second mounting platform (2) and is arranged along the inner side edge of the first mounting platform (1) or the second mounting platform (2);
the second slide way (9), the second slide way (9) is arranged in the inner side wall of the first mounting platform (1) or the second mounting platform (2);
the sliding block (13) is arranged in the second slide way (9), and the sliding block (13) can slide along the second slide way (9); and the number of the first and second groups,
the operating rod (10) is arranged in the first slideway (7), and the operating rod (10) can slide and be fixed along the first slideway (7); the lower extreme of control rod (10) with slider (13) fixed connection for slider (13) can slide along second slide (9) under the drive of control rod (10) thereby tightly buckle the lateral wall of cartridge type basis (3) to be suitable for the cartridge type basis (3) of different section of thick bamboo footpaths.
3. The offshore wind power catamaran mounting platform according to claim 1, further comprising a centering device, wherein a plurality of sets of centering devices are arranged on inner sides of the first mounting platform (1) and the second mounting platform (2), lifting lugs (12) corresponding to the centering devices in a one-to-one manner are arranged on the cylindrical foundation (3), third slide ways (8) are respectively arranged in upper surfaces of the first mounting platform (1) and the second mounting platform (2), and the third slide ways (8) are arranged along inner sides of the first mounting platform (1) or the second mounting platform (2);
every group righting device includes:
the righting pulley (11) is arranged in the third slideway (8) and can slide and be fixed along the third slideway (8);
a righting winch (15), the righting winch (15) being disposed on an upper surface of the first mounting platform (1) or the second mounting platform (2) and being arranged adjacent to an inner side of the first mounting platform (1) or the second mounting platform (2); and the number of the first and second groups,
one end of the righting cable is connected to the lifting lug (12) corresponding to the righting device, and the other end of the righting cable is connected with the righting winch (15) after passing around the righting pulley (11);
wherein the righting winch (15) tensions the righting cable by winding it so that the whole consisting of the first mounting platform (1), the drum foundation (3) and the second mounting platform (2) maintains a horizontal sinking posture during sinking.
4. Offshore wind power catamaran installation platform according to claim 1, wherein each group of gliding means comprises:
the pull-down pulley (16) is arranged at the bottom of the positioning pile (5) corresponding to the sliding device;
a pull-down winch (17), the pull-down winch (17) being disposed on an upper surface of the first mounting platform (1) or the second mounting platform (2) and being arranged near an outer side of the first mounting platform (1) or the second mounting platform (2); and the number of the first and second groups,
one end of the pull-down cable is connected to the bottom of the cylindrical foundation (3), and the other end of the pull-down cable is connected with the pull-down winch (17) after passing around the pull-down pulley (16);
wherein the pull-down winch (17) drives the whole body consisting of the first mounting platform (1), the barrel-shaped foundation (3) and the second mounting platform (2) to slide downwards along the positioning pile (5) by winding the pull-down cable.
5. An offshore wind power catamaran installation platform according to claim 1, characterized in that the first installation platform (1) and the second installation platform (2) are both box-type structures, and a seawater valve is arranged at the bottom of each of the first installation platform (1) and the second installation platform (2), and water can be pressurized and drained into the first installation platform (1) or the second installation platform (2) through the seawater valve so as to facilitate sinking and floating of the installation platforms; the inner side shape of the first mounting platform (1) is matched with the left side shape of the cylindrical foundation (3), and the inner side shape of the second mounting platform (2) is matched with the right side shape of the cylindrical foundation (3).
6. Offshore wind binary installation platform according to claim 1, characterized in that each buoyancy tank (4) has its inner side wall fixedly connected to the first installation platform (1) or the second installation platform (2), and on the outer side wall opposite to the inner side wall is provided with a detachably connected retaining ring (14) for tight connection between adjacent installation platforms.
7. An offshore wind power catamaran installation platform according to claim 1, characterized in that each buoyancy tank (4) is provided with an inflation bin, and the buoyancy tanks (4) are self-floating after being inflated.
8. Offshore wind power catamaran installation platform according to claim 1, characterized in that at the bottom of each spud (5) a bottomed platform (6) is provided.
9. Offshore wind power catamaran installation platform according to claim 1, characterized in that said cylindrical foundation (3) has a water pumping hole at its top for connection to a water pumping device.
10. Method for installing a bucket foundation (3) of an offshore wind power catamaran installation platform according to any one of claims 1 to 9, characterized in that it comprises the following steps:
step 1, placing a main body structure of a prefabricated cylindrical foundation (3) on the inner side of a first mounting platform (1), and moving a sliding block (13) by controlling an operating rod (10) on the first mounting platform (1) to enable the sliding block (13) to tightly buckle the side wall of the cylindrical foundation (3);
step 2, accurately butting the inner side wall of the second mounting platform (2) with the unfixed side wall of the cylindrical foundation (3), and moving the sliding block (13) by controlling the operating lever (10) on the second mounting platform (2) to enable the sliding block (13) to tightly buckle the side wall of the cylindrical foundation (3) to realize bilateral fixation;
step 3, floating and transporting the whole body consisting of the first installation platform (1), the cylindrical foundation (3) and the second installation platform (2) to a target installation field;
step 4, connecting the first mounting platform (1) with the cylindrical foundation (3), the second mounting platform (2) with the cylindrical foundation (3) through a righting device, wherein in each group of righting devices, one end of a righting cable is connected with a lifting lug (12) corresponding to the righting device on the cylindrical foundation (3), and the other end of the righting cable is connected with a righting winch (15) through a righting pulley (11), and the righting cable always has tension in the mounting process;
step 5, connecting a sliding device: in each group of sliding devices, one end of a pull-down cable is connected with the bottom of the cylindrical foundation (3), and the other end of the pull-down cable is connected with a pull-down winch (17) through a pull-down pulley (16);
step 6, lowering the positioning piles (5) on the first mounting platform (1) and the second mounting platform (2) until the bottom platform (6) at the lower part of the positioning piles (5) is completely connected with the sea bed surface (I);
step 7, starting a pull-down winch (17), driving the whole composed of the first mounting platform (1), the cylindrical foundation (3) and the second mounting platform (2) to slide downwards along the positioning pile (5) until the cylindrical foundation (3) is completely connected with the sea bed surface (I);
step 8, controlling the sliding block (13) to loosen the side wall of the cylindrical foundation (3) through the operating levers (10) of the first mounting platform (1) and the second mounting platform (2), and removing the connection between all the pull-down cables and the bottom of the cylindrical foundation (3) and the connection between all the pull-up cables and the lifting lugs (12);
step 9, forming negative pressure in the inner bin of the cylindrical foundation (3) through a water pumping device, and penetrating into the sea bed surface (I) under the action of different pressure differences inside and outside the cylinder;
and step 10, inflating the buoyancy tank (4) to enable the first mounting platform (1) and the second mounting platform (2) to float upwards, and mounting the cylindrical foundation (3) is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110088667.1A CN112761128A (en) | 2021-01-22 | 2021-01-22 | Offshore wind power double-body installation platform and cylindrical foundation installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110088667.1A CN112761128A (en) | 2021-01-22 | 2021-01-22 | Offshore wind power double-body installation platform and cylindrical foundation installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112761128A true CN112761128A (en) | 2021-05-07 |
Family
ID=75705761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110088667.1A Pending CN112761128A (en) | 2021-01-22 | 2021-01-22 | Offshore wind power double-body installation platform and cylindrical foundation installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112761128A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114715336A (en) * | 2022-04-08 | 2022-07-08 | 长江勘测规划设计研究有限责任公司 | Offshore wind power cylindrical foundation transportation and installation integrated ship suitable for deep water and installation method |
| CN115092330A (en) * | 2022-07-20 | 2022-09-23 | 长江勘测规划设计研究有限责任公司 | Floating transportation fixing device with full-freedom-degree limiting function for offshore wind power barrel type foundation |
| CN115977053A (en) * | 2022-12-23 | 2023-04-18 | 天津大学 | Bottom-sitting type offshore wind power deep water auxiliary mounting platform |
| CN116892199A (en) * | 2023-09-08 | 2023-10-17 | 中船黄埔文冲船舶有限公司 | Lifting foundation for offshore wind power installation platform and construction method thereof |
-
2021
- 2021-01-22 CN CN202110088667.1A patent/CN112761128A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114715336A (en) * | 2022-04-08 | 2022-07-08 | 长江勘测规划设计研究有限责任公司 | Offshore wind power cylindrical foundation transportation and installation integrated ship suitable for deep water and installation method |
| CN114715336B (en) * | 2022-04-08 | 2023-05-26 | 长江勘测规划设计研究有限责任公司 | Offshore wind power cylindrical foundation transportation and installation integrated ship suitable for deep water and installation method |
| CN115092330A (en) * | 2022-07-20 | 2022-09-23 | 长江勘测规划设计研究有限责任公司 | Floating transportation fixing device with full-freedom-degree limiting function for offshore wind power barrel type foundation |
| CN115092330B (en) * | 2022-07-20 | 2023-05-26 | 长江勘测规划设计研究有限责任公司 | Marine wind torch type foundation full-freedom-degree limiting floating transportation fixing device |
| CN115977053A (en) * | 2022-12-23 | 2023-04-18 | 天津大学 | Bottom-sitting type offshore wind power deep water auxiliary mounting platform |
| CN115977053B (en) * | 2022-12-23 | 2024-03-12 | 天津大学 | Bottom-supported offshore wind power deep water auxiliary installation platform |
| CN116892199A (en) * | 2023-09-08 | 2023-10-17 | 中船黄埔文冲船舶有限公司 | Lifting foundation for offshore wind power installation platform and construction method thereof |
| CN116892199B (en) * | 2023-09-08 | 2023-12-05 | 中船黄埔文冲船舶有限公司 | Lifting foundation for offshore wind power installation platform and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7186406B2 (en) | Floating structure and installation method of floating structure | |
| CN112761128A (en) | Offshore wind power double-body installation platform and cylindrical foundation installation method | |
| CN112135772B (en) | Wind turbine for offshore deployment | |
| US10087915B1 (en) | Self-installing column stabilized offshore wind turbine system and method of installation | |
| WO1997006340A1 (en) | Offshore apparatus and method for oil operations | |
| JP2017516945A (en) | Floating substructure for wind turbine and installation method thereof | |
| US20220234697A1 (en) | A floating structure and method of installation | |
| US20220316446A1 (en) | Floating offshore wind turbine assembly unit | |
| US11867148B2 (en) | Delivery of a high volume of floating systems for wind turbines | |
| CN112726548B (en) | Construction method for split jacket foundation of deep-open sea converter station | |
| CN214573828U (en) | Marine wind power binary mounting platform | |
| JP2023529726A (en) | floating windmill | |
| WO2022108456A1 (en) | A handling apparatus and method of mating a module | |
| WO2023081849A1 (en) | Floating wind turbine systems and methods | |
| EP2440709B1 (en) | Buoyant stabilizing device | |
| KR101508028B1 (en) | Method of constructing a semi-submersible unit, Kit for constructing a semi-submersible unit and Semisubmersible unit | |
| WO2024185111A1 (en) | Floating dock for constructing floating foundation for offshore wind power generation facility, and method for constructing floating foundation | |
| WO2023156474A1 (en) | A method and system of installing a floating foundation, assembly of floating foundation and ballasting frame, and ballasting frame | |
| GB2628092A (en) | Semi-submersible floating offshore wind vessel having a submersible hull comprising variable ballast pontoons | |
| CN112921938A (en) | Efficient jacket launching process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |