CN108454799A - A kind of offshore wind farm buoyant foundation transportation by driving construction method - Google Patents
A kind of offshore wind farm buoyant foundation transportation by driving construction method Download PDFInfo
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- CN108454799A CN108454799A CN201810064081.XA CN201810064081A CN108454799A CN 108454799 A CN108454799 A CN 108454799A CN 201810064081 A CN201810064081 A CN 201810064081A CN 108454799 A CN108454799 A CN 108454799A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B75/00—Building or assembling floating offshore structures, e.g. semi-submersible platforms, SPAR platforms or wind turbine platforms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
- B63B2021/505—Methods for installation or mooring of floating offshore platforms on site
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Wind Motors (AREA)
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Abstract
The invention belongs to offshore wind power foundation technical field, a kind of offshore wind farm buoyant foundation transportation by driving construction method is disclosed, the prefabricated floating platform in first land and anchoring system are simultaneously fixed temporarily by oblique mooring line and lineal pool line；Then by anchoring system floating platform tower wind turbine entirety transportation by driving towage；Applying ballast again makes anchor foundation sink and is embedded in seabed to fix；So that the floating platform for being equipped with top blower fan tower barrel is sunk down into designed draft position, anchors oblique mooring line and lineal pool line；By the water body discharge in buoyancy tank inside points cabin；Finally adjust the position of centre of gravity of offshore wind farm buoyant foundation.The present invention is capable of providing stability floating enough in towage, and when state in place is influenced small by wave load；It realizes layering tensioning system waterborne, reduces the difficulty of underwater installation mooring line；Anchor foundation provides withdrawal resistance using ballast weight and frictional resistance, and by preloading and inside and outside differential pressure injection sea bed, easy for construction.
Description
Technical field
The invention belongs to offshore wind power foundation technical fields, in particular to a kind of offshore wind farm buoyant foundation is floating
Construction method is transported, stability is preferable, and construction and installation are convenient, and project cost and installation cost are low.
Background technology
The concept source on floatation type basis refers to that basis is not in direct contact with sea bed, and is led in deep-sea oil gas development platform
It crosses anchor cable or hawser it is connected with seabed, makes Wind turbines that can be moved freely in a certain be relatively fixed in region, such basis
Research and development and demonstration phase are mostly at present, but, with bed type basis compared with difficulty of construction stronger to the adaptability of marine environment
It is smaller, O＆M cost is low, therefore have a good application prospect in terms of developing deep-sea wind-powered electricity generation.
Compared with coastal waters, abyssal environment is more severe, there is a variety of hydrology phenomenons such as ocean current, wave, tide, interior wave with
And burn into washes away, washes in a pan the long-term physical and chemical effects such as sky, the technologies such as integrated to blower foundation, submarine cable, offshore platform undoubtedly propose
More harsh requirement.In view of the factor of technical difficulty and construction cost, fixed basis is no longer applicable in, deep-sea wind power plant
Mainly use buoyant foundation.
The broad form of existing offshore wind farm buoyant foundation has：Spar types, TLP types and semisubmersible-type basis.Spar types basis
Water Plane is small, is influenced by wave load small, is suitable for the deeper marine site of the depth of water, installs mobile inconvenient；TLP type foundation motion performances
Preferably, mooring uses tension tendon, and cost is higher, is limited greatly by the depth of water；Semisubmersible-type basis can transportation by driving towage, but larger waterline
Face makes it be influenced by wave load, and stability is poor.Above-mentioned base form each own difference in terms of stability and economy
The drawbacks of, and three kinds of foundation pattern mooring lines are both needed to install under water, difficulty of construction is larger.
Invention content
The present invention is to solve the higher technical problem of underwater construction process complexity cost, provides a kind of offshore wind farm
Buoyant foundation transportation by driving construction method, easy for construction, installation cost is low, offshore wind farm buoyant foundation can be made preferably to be applied to practical
Engineering.
In order to solve the above-mentioned technical problem, the present invention is achieved by technical solution below：
A kind of offshore wind farm buoyant foundation transportation by driving construction method, carries out in accordance with the following steps：
(1) the prefabricated floating platform in land and anchoring system；
The floating platform includes the column, buoyancy tank, inclination strut for being hollow-core construction, and the upper end of the column passes through flange
Blower fan tower barrel is connected, the column lower end connects the buoyancy tank, and it is uniformly distributed that more circumferential directions are connected between the column and the buoyancy tank
Inclination strut；The buoyancy tank is provided centrally with the first reserving hole channel being connected with the column, first reserving hole channel
It is internally provided with circumferential inner panel, the circumferential direction inner panel is fixedly connected with the bottom plate of the buoyancy tank；The buoyancy tank is internally provided with diameter
To subdivision plate and circumferential subdivision plate, the radial direction subdivision plate and the circumferential subdivision plate will divide multiple subdivisions inside the buoyancy tank
Room, each subdivision room are equipped with the valve system that can carry out aqueous vapor displacement；It is provided with the second preformed hole on per pass radial direction subdivision plate
Road, the quantity of second reserving hole channel is identical as the inclination strut and is correspondingly connected with one by one simultaneously with the inclination strut lower end
It communicates, the inclination strut upper end is connected with the column；
The anchoring system includes anchor foundation, oblique mooring line and lineal pool line, and the anchor foundation includes anchoring plate body,
Anchoring plate body upper edge edge is provided with barrel, lower edges setting sheath skirt；The quantity and described second of the lineal pool line is in advance
It boxes out identical with the quantity for tilting strut, the lineal pool line lower end corresponds to the position anchoring of second reserving hole channel
In the anchoring plate body of the anchor foundation；The quantity of the oblique mooring line is lineal moor line 2 times, under the oblique mooring line
The position of end corresponding first reserving hole channel periphery is anchored in the anchoring plate body of the anchor foundation；
(2) by first reserving hole channel that the oblique mooring line upper end is stretched into inside the buoyancy tank and it is temporarily fixed on institute
State circumferential inner panel；The lineal line upper end of mooring is each passed through second reserving hole channel inside the buoyancy tank, and by described
Strut is tilted to wear to column inside and be temporarily fixed on the column；
(3) by the anchoring system being fixed temporarily and the floating platform, and on the floating platform
Blower fan tower barrel together transport to operation marine site by towage；
(4) applying ballast makes the anchor foundation sink, and is embedded in the anchor foundation by preloading and inside and outside differential pressure
Seabed is fixed；
(5) valve system replaced by aqueous vapor makes to be equipped with top wind turbine tower to buoyancy tank inside points cabin water filling
The floating platform of cylinder loses part buoyancy, when sinking down into designed draft position, according to the oblique mooring line and described
The oblique mooring line upper end is anchored in the circumferential inner panel by the preset length of direct line pool line, by the lineal pool line upper end anchor
It is fixed in the column；At this point, the oblique mooring line is arranged externally to centroclinal in the anchor foundation and institute from the bottom to top
Between stating buoyancy tank, the lineal pool line is vertically arranged between the anchor foundation and the buoyancy tank；
(6) water body in buoyancy tank inside points cabin is discharged by the valve system that aqueous vapor is replaced；
(7) water body, second reserving hole channel and the water body for tilting strut in first reserving hole channel are led to
It crosses high pressure and inflates discharge, and seal the buoyancy tank bottom；
(8) position of centre of gravity of offshore wind farm buoyant foundation is adjusted by buoyancy tank inside points cabin.
Preferably, second reserving hole channel is smoothly connected with the inclination strut with radian.
Preferably, the angle of the oblique mooring line and vertical direction is 3 °~60 °.
Preferably, the oblique mooring line and the lineal pool each anchor point of line are equipped with maintenance device.
Preferably, the exposed parts of the oblique mooring line and the lineal pool line are all made of gum sleeve package.
The beneficial effects of the invention are as follows：
(1) offshore wind farm buoyant foundation transportation by driving construction method of the invention, floating platform by the column of small-waterplane-area and
The buoyancy tank of big Water Plane combines design, it is ensured that basis provides stability floating enough, while wind turbine in towage by big Water Plane buoyancy tank
State buoyancy tank in place is dived beneath the water, and the column of the small line water surface is influenced small, the stability after guarantee foundation construction by wave load.
(2) direct line is moored line and oblique mooring by offshore wind farm buoyant foundation transportation by driving construction method of the invention, anchoring system
Knot closes design, provides preferable heaving and rotating property by direct line pool line, skewed mooring line provides greater level to about
Beam force so that basis is small in the motor imagination of all directions, and stability is good；Direct line pool line upper end is anchored in column, on oblique mooring line
Buoyancy tank inner panel is fixed at end, realizes layering tensioning system waterborne, reduces the difficulty of underwater installation mooring line, easy for construction；It is lineal
It moors line and oblique mooring line uses steel strand wires material, good economy performance.
(3) anchor foundation of offshore wind farm buoyant foundation transportation by driving construction method of the invention, anchoring system utilizes ballast
The frictional resistance that weight and sheath skirt provide provides withdrawal resistance, and for lineal pool line and the positioning of oblique mooring line, anchor foundation, which is top, to be filled
The structure of sand ballast, lower bands sheath skirt, larger Water Plane make its can towage to operation waters, and preloading and interior external pressure can be passed through
Poor injection sea bed, it is easy for construction.
Description of the drawings
Fig. 1 is the dimensional structure diagram of involved offshore wind farm buoyant foundation in the method for the present invention；
Fig. 2 is the mooring line distribution schematic diagram of involved offshore wind farm buoyant foundation in the method for the present invention；
Fig. 3 is the front view of involved offshore wind farm buoyant foundation in the method for the present invention；
Fig. 4 is the vertical view of involved offshore wind farm buoyant foundation in the method for the present invention.
In figure：1, column, 2, tilt strut, 3, buoyancy tank, 4, lineal pool line, 5, oblique mooring line, 6, anchor foundation, 7, second
Reserving hole channel, the 8, first reserving hole channel, 9, radial subdivision plate, 10, circumferential subdivision plate, 11, circumferential inner panel.
Specific implementation mode
For that can further appreciate that invention content, feature and the effect of the present invention, the following examples are hereby given, and coordinates attached drawing
Detailed description are as follows：
Present embodiment discloses a kind of offshore wind farm buoyant foundation transportation by driving construction methods, carry out in accordance with the following steps：
(1) show as shown in Figure 1 to Figure 4, offshore wind farm buoyant foundation is made of floating platform and anchoring system, is first distinguished on land
Prefabricated floating platform and anchoring system.
Floating platform includes column 1, tilts strut 2, buoyancy tank 3, and 1 upper end of column is connected by flange with blower fan tower barrel, is stood
1 lower end of column is fixedly connected with buoyancy tank 3, and more circumferentially uniformly distributed inclination struts 2 are provided between column 1 and buoyancy tank 3.In view of sea
The cabin of upper fan and the weight of blade it is larger and more than the water surface 80~100m, to make wind turbine normal power generation, it is necessary to assure base
Stability of the plinth under stormy waves synergy and the ability for resisting storm load.Column 1 selects steel construction, concrete knot with buoyancy tank 3
The material of structure or other lighter weights can carry larger wind-powered electricity generation load.3 phase knot of small-waterplane-area column 1 and big Water Plane buoyancy tank
The design of conjunction provides stability floating enough by big Water Plane buoyancy tank 3 and realizes floating platform-tower-wind turbine entirety transportation by driving towage, installation
Convenient transportation；And buoyancy tank 3 slips into the water surface hereinafter, the column 1 of small-waterplane-area is located on the water surface, to reduce wave lotus when state in place
The influence of load.It tilts that strut 2 is inclined is connected between column 1 and buoyancy tank 3, reinforces the connection knot of column 1 and buoyancy tank 3 with this
Structure, and provide horizontal and vertical bearing capacity for top wind-powered electricity generation structure.
Column 1 is the cylinder-like structure with cavity, and a diameter of 8m is highly 20m, wall thickness 50mm.
Buoyancy tank 3 is the flat cylindrical-shaped structure with cavity, and a diameter of 33m is highly 10m, wall thickness 15mm.Buoyancy tank
3 are provided centrally with the first reserving hole channel 8 of a diameter of 8m, and the first reserving hole channel 8 is connected with column 1, and diameter is straight with column 1
Diameter is identical.First reserving hole channel 8 is internally provided with the circumferential inner panel 11 that a loop diameter is 6m, wall thickness is 30mm, circumferential inner panel 11
It is fixedly connected with 3 bottom plate of buoyancy tank, for fixing oblique mooring line 5.Buoyancy tank 3 is internally provided with the radial subdivision plate of four radial equipartitions
9 with together with circumferential subdivision plate 10, radial subdivision plate 9 and circumferential subdivision plate 10 inside and outside each four of two circle will be divided into inside buoyancy tank 3
Subdivision room, each subdivision room are equipped with the valve system that can carry out aqueous vapor displacement, and buoyancy tank 3 can be by adding Water Ballast in each subdivision room
Center-of-gravity regulating position ensures basic towage stability.There are one the second preformed holes for same position setting on per pass radial direction subdivision plate 9
Road 7, four the second reserving hole channels 7 tilt strut 2 with four respectively and are connected.Second reserving hole channel 7 is with inclination strut 2 with certain
Radian smoothly connect, avoid when mooring line tensioning stress stress concentration from causing mooring line impaired, influence system worked well.The
Two reserving hole channels 7 and the first reserving hole channel 8 can prevent mooring line from being contacted with water, ensure that mooring anchor point is without damage.
Inclination strut 2 is hollow long column shape structure, a diameter of 2m.Four tilt the circumferentially uniformly distributed setting of strut 2 vertical
Around column 1, the upper end of every inclination strut 2 is fixedly connected on 1 sidewall upper of column and is connected with column 1, and lower end, which is fixed, to be connected
It is connected to the outer position in 3 upper surface of buoyancy tank and is connected with the second reserving hole channel 7.
Anchoring system includes lineal pool line 4, oblique mooring line 5 and anchor foundation 6, four lineal pool lines 4 and eight oblique moorings
5 lower end of line is anchored in anchor foundation 6.The quantity of direct line pool line 4 is identical as the second reserving hole channel 7 and the inclination quantity of strut 2,
Generally 3-8 roots.The following position directly that 4 lower end of direct line pool line corresponds to the second reserving hole channel 7 is anchored in anchor foundation 6, so that four
It is vertically arranged between buoyancy tank 3 and anchor foundation 6 after the 4 upper end anchoring of root direct line pool line.The quantity of oblique mooring line 5 is lineal pool line
2 times of 4, generally 6-16 roots.The position that oblique 5 lower end of mooring line corresponds to 7 periphery of the first reserving hole channel is anchored in anchor foundation 6,
So that eight oblique mooring lines 5 from top to bottom incline from the outside portion in center with equal angular is radial between buoyancy tank 3 and anchor foundation 6
Tiltedly setting, and the angle of oblique mooring line 5 and vertical direction is within the scope of 3 °~60 °.The diameter of direct line pool line 4 and oblique mooring line 5
It is 167mm, steel strand wires, polyester fiber line etc. can be used；Upper end is both provided with buoy ball before anchoring, it is facilitated to pass through second
Reserving hole channel 7 and the first reserving hole channel 8.
Anchor foundation 6 includes the round anchor plate body of diameter 40m, which is 2m's along height is provided with
Annular tube wall, lower edges are provided with the annular sheath skirt that height is 5m.Anchoring plate body is for providing lineal pool line 4 and oblique mooring line
The anchor point of 5 lower ends, the superstructure that anchoring plate body is constituted with barrel can fill sand ballast, and sheath skirt passes through ballast weight and inside and outside differential pressure
Injection sea bed.Anchor foundation 6 can be provided by preloading and inside and outside differential pressure injection sea bed, anchor foundation 6 using ballast weight and sheath skirt
Frictional resistance to provide withdrawal resistance be lineal pool line 4 and the positioning of oblique mooring line 5.
(2) four lineal 4 upper ends of line of mooring are each passed through four the second reserving hole channels 7 inside buoyancy tank 3, and are inclined by four
Hound 2 is worn to column 1, and 1 side wall inner surfaces of column are finally temporarily fixed on.Eight oblique 5 upper ends of mooring line stretch into first
8 inside of reserving hole channel is simultaneously temporarily fixed on circumferential inner panel 11.
(3) top blower fan tower barrel, floating platform and anchoring system be after all installation is complete, the mooring system that will be fixed temporarily
System and floating platform, and towage is transported to operation marine site together for blower fan tower barrel on floating platform；Utilize big waterline
The buoyancy tank 3 and anchor foundation 6 in face, which provide, floats stability realization anchoring system-floating platform-tower-wind turbine entirety transportation by driving towage；
(4) be equipped with top blower fan tower barrel floating platform and anchoring system towage is transported to operation marine site together, apply
Pressurization, which carries, makes the anchor foundation 6 in anchoring system sink, and is fixed the insertion of anchor foundation 6 seabed by preloading and inside and outside differential pressure；
(5) inner ring subdivision room water filling of the valve system replaced by aqueous vapor to buoyancy tank 3, makes to be equipped with top blower fan tower barrel
Floating platform lose part buoyancy, the outer ring subdivision room air of buoyancy tank 3 is supplied to basic certain in sinking watching
Buoyancy ensures the stability of offshore wind farm buoyant foundation；When the floating platform sinks down into designed draft position, moored according to direct line
The preset length that line 4 and oblique mooring line 5 reach simultaneously, oblique 5 upper end of mooring line is anchored on circumferential inner panel 11, and direct line is moored line
4 upper ends are anchored in 1 side wall inner surfaces of column, and each anchor point after anchoring is equipped with maintenance device.At this point, tiltedly mooring line 5 is under
It is supreme to be arranged between anchor foundation 6 and buoyancy tank 3 externally to centroclinal, and tiltedly mooring line 5 and the angle of vertical direction exist
Within the scope of 3 °~60 °；Direct line pool line 4 is vertically arranged between anchor foundation 6 and buoyancy tank 3.Lineal pool line 4 and oblique mooring as a result,
Line 5 forms layering tensioning system waterborne, reduces the difficulty of underwater installation mooring line.Direct line pool line 4 provide good heaving and
Rotating property, oblique mooring line 5 provide larger horizontal restraint power, and radiate centroclinal design and reduce occupancy sea bed face
Product is reduced and seafloor structure collision phenomenon.It is all made of gum sleeve package outside direct line pool line 4 and oblique mooring line 5, avoids it
Corrosion failure in the seawater.
(6) water body in 3 inner ring subdivision room of buoyancy tank is discharged by the valve system that aqueous vapor is replaced, ensures that offshore wind farm is floating
Formula basis has certain floating stability；
(7) water body, the oblique mooring line 5 brought lineal pool line 4 into second reserving hole channel 7 and tilt strut 2 bring first into advance
The water body boxed out in 8 inflates discharge by high pressure, and 3 bottom of sealing buoyancy tank ensures the second reserving hole channel 7, the first reserving hole channel 8
It is in drying regime with strut 2 is tilted；
(8) after position, by the center of gravity position for adjusting offshore wind farm buoyant foundation to the outer ring subdivision room water filling of buoyancy tank 3
It sets, ensures offshore wind farm buoyant foundation safe and stable operation.
In this way, anchoring system can effectively control floating platform in heaving, surging, swaying, yawing, rolling, pitching
The movement of six-freedom degree, it is ensured that the offshore wind farm buoyant foundation has smaller motor imagination, good dynamic to show
Power performance thus greatly reduces the design requirement to Wind turbines.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the invention is not limited in upper
The specific implementation mode stated, the above mentioned embodiment is only schematical, be not it is restrictive, this field it is common
Technical staff under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, may be used also
By make it is many in the form of specific transformation, within these are all belonged to the scope of protection of the present invention.
Claims (5)
1. a kind of offshore wind farm buoyant foundation transportation by driving construction method, which is characterized in that carry out in accordance with the following steps：
(1) the prefabricated floating platform in land and anchoring system；
The floating platform includes the column, buoyancy tank, inclination strut for being hollow-core construction, and the upper end of the column passes through flanged joint
Blower fan tower barrel, the column lower end connect the buoyancy tank, and more are connected between the column and the buoyancy tank and circumferentially uniformly distributed is inclined
Hound；The buoyancy tank is provided centrally with the first reserving hole channel being connected with the column, inside first reserving hole channel
It is provided with circumferential inner panel, the circumferential direction inner panel is fixedly connected with the bottom plate of the buoyancy tank；The buoyancy tank is internally provided with radial point
Deck board and circumferential subdivision plate, the radial direction subdivision plate and the circumferential subdivision plate will divide multiple subdivision rooms inside the buoyancy tank,
Each subdivision room is equipped with the valve system that can carry out aqueous vapor displacement；It is provided with the second reserving hole channel on per pass radial direction subdivision plate,
The quantity of second reserving hole channel is identical as the inclination strut and is correspondingly connected with simultaneously phase one by one with the inclination strut lower end
Logical, the inclination strut upper end is connected with the column；
The anchoring system includes anchor foundation, oblique mooring line and lineal pool line, and the anchor foundation includes anchoring plate body, the anchor
Solid plate body upper edge edge is provided with barrel, lower edges setting sheath skirt；The quantity of the lineal pool line and second preformed hole
Road is identical with the quantity for tilting strut, and the position that the lineal pool line lower end corresponds to second reserving hole channel is anchored in institute
State the anchoring plate body of anchor foundation；The quantity of the oblique mooring line is lineal moor line 2 times, the oblique mooring line lower end pair
The position of first reserving hole channel periphery is answered to be anchored in the anchoring plate body of the anchor foundation；
(2) by first reserving hole channel that the oblique mooring line upper end is stretched into inside the buoyancy tank and it is temporarily fixed on the ring
To inner panel；The lineal line upper end of mooring is each passed through second reserving hole channel inside the buoyancy tank, and by the inclination
Strut is worn to column inside and is temporarily fixed on the column；
(3) by the anchoring system being fixed temporarily and the floating platform, and the wind turbine on the floating platform
Tower together transport to operation marine site by towage；
(4) applying ballast makes the anchor foundation sink, and the anchor foundation is embedded in seabed by preloading and inside and outside differential pressure
It is fixed；
(5) valve system replaced by aqueous vapor makes to be equipped with top blower fan tower barrel to buoyancy tank inside points cabin water filling
The floating platform loses part buoyancy and sinks, when sinking down into designed draft position, according to the oblique mooring line and the direct line
The oblique mooring line upper end is anchored in the circumferential inner panel by the preset length for mooring line, and the lineal line upper end of mooring is anchored in
The column；At this point, the oblique mooring line is floated in the anchor foundation with described externally to centroclinal setting from the bottom to top
Between case, the lineal pool line is vertically arranged between the anchor foundation and the buoyancy tank；
(6) water body in buoyancy tank inside points cabin is discharged by the valve system that aqueous vapor is replaced；
(7) water body, second reserving hole channel and the water body for tilting strut in first reserving hole channel are passed through into height
Pressure inflates discharge, and seals the buoyancy tank bottom；
(8) position of centre of gravity of offshore wind farm buoyant foundation is adjusted by buoyancy tank inside points cabin.
2. a kind of offshore wind farm buoyant foundation transportation by driving construction method according to claim 1, which is characterized in that described second
Reserving hole channel is smoothly connected with the inclination strut with radian.
3. a kind of offshore wind farm buoyant foundation transportation by driving construction method according to claim 1, which is characterized in that the oblique system
The angle for mooring line and vertical direction is 3 °~60 °.
4. a kind of offshore wind farm buoyant foundation transportation by driving construction method according to claim 1, which is characterized in that the oblique system
Pool line and the lineal pool each anchor point of line are equipped with maintenance device.
5. a kind of offshore wind farm buoyant foundation transportation by driving construction method according to claim 1, which is characterized in that the oblique system
The exposed parts of pool line and the lineal pool line are all made of gum sleeve package.
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| CN201810064081.XA CN108454799B (en) | 2018-01-23 | 2018-01-23 | A kind of offshore wind farm buoyant foundation transportation by driving construction method |
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| CN201810064081.XA CN108454799B (en) | 2018-01-23 | 2018-01-23 | A kind of offshore wind farm buoyant foundation transportation by driving construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111301622A (en) * | 2020-03-25 | 2020-06-19 | 天津大学 | Migratory offshore wind power floating foundation and operation method thereof |
| CN112177859A (en) * | 2020-09-08 | 2021-01-05 | 上海交通大学 | Cylindrical floating type fan platform with moon pool |
| US11772755B2 (en) * | 2020-09-08 | 2023-10-03 | Rwe Renewables Gmbh | Floatable offshore wind turbine |
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| CN112177859A (en) * | 2020-09-08 | 2021-01-05 | 上海交通大学 | Cylindrical floating type fan platform with moon pool |
| US11772755B2 (en) * | 2020-09-08 | 2023-10-03 | Rwe Renewables Gmbh | Floatable offshore wind turbine |
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