CN205776313U - A kind of offshore wind farm doleiform gravity type foundation - Google Patents
A kind of offshore wind farm doleiform gravity type foundation Download PDFInfo
- Publication number
- CN205776313U CN205776313U CN201620556470.0U CN201620556470U CN205776313U CN 205776313 U CN205776313 U CN 205776313U CN 201620556470 U CN201620556470 U CN 201620556470U CN 205776313 U CN205776313 U CN 205776313U
- Authority
- CN
- China
- Prior art keywords
- central post
- doleiform
- offshore wind
- wind farm
- gravity type
- 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.)
- Active
Links
Landscapes
- Wind Motors (AREA)
- Foundations (AREA)
Abstract
This utility model relates to a kind of offshore wind farm doleiform gravity type foundation.It is intended to reduce construction risk, save construction cost, makes basis itself should meet from floating stability requirement simultaneously, can short distance haul and sinking construction under conditions of not having large-scale crane ship.The technical solution of the utility model is: the similar up-small and down-big doleiform in this basis, base center is the small-bore central post end of through to, central post upper end connecting fan tower, the large-diameter circular casing of following external closing in the middle part of central post, this round box is by the tilting lamina tecti of base plate, cabinet exterior, reducing and round box is separated into the box partition of several radial separations forms, box partition side is connected with central post outer wall, opposite side is connected with cabinet exterior, lamina tecti upper end is connected with central post outer wall, and lower end is connected with edge on cabinet exterior.This utility model is applicable to the domestic execution conditions lacking large-scale crane ship equipment, and shallow top layer has the sea bed environment of bearing capacity base higher.
Description
Technical field
This utility model relates to offshore wind farm industry, especially a kind of offshore wind farm doleiform gravity type foundation.It is applicable to state
Inside lack the execution conditions of large-scale crane ship equipment, and shallow top layer has the sea bed environment of bearing capacity base higher.
Background technology
At present, the most common offshore wind power foundation structural shape is pile foundation, including single-pile foundation, many pile leaders
Frame basis and High-Rise Pile Cap Foundation etc..The existing more application in gravity type foundation offshore wind farm field abroad, at home owing to being subject to
To the restriction of offshore construction machinery, the most well applied.
Along with the Large scale construction of domestic offshore wind farm, find in Coastal Area of Guangdong Province, Fujian, mostly be bearing capacity higher
Lithology ground, piling and rig that the type ground is constructed for pile foundation require higher, and difficulty of construction is big and marine
Activity duration is long, needs to consume substantial amounts of steel and causes construction cost expensive.Use gravity type foundation to have one in this region
Fixed advantage, but traditional gravity formula basis as using external offshore wind farm Engineering, basis weight is heavier, needs to use greatly
The crane ship equipment of type carries out sinking construction, and the crane ship of such scale market at home is less, and use cost is high.
Summary of the invention
The technical problems to be solved in the utility model is: for the problem of above-mentioned existence, it is provided that a kind of adaptation lithology geology
The offshore wind farm doleiform gravity type foundation of condition, in the hope of reducing construction risk, saving construction cost；Basis should meet itself simultaneously
From floating stability requirement, can short distance haul and sinking construction under conditions of not having large-scale crane ship.
This utility model the technical scheme is that offshore wind farm doleiform gravity type foundation, it is characterised in that described base
Plinth is similar to up-small and down-big doleiform, and base center is the small-bore central post end of through to, central post upper end connecting fan tower
Cylinder, the large-diameter circular casing of following external closing in the middle part of central post, this round box is tilting by base plate, cabinet exterior, reducing
Lamina tecti and round box is separated into several radial separations box partition composition, described box partition side with in
Column outer wall connects, and opposite side is connected with cabinet exterior, and lamina tecti upper end is connected with central post outer wall, on lower end and cabinet exterior
Along connecting.
Described central post uniformly lays a circle prestress wire along its barrel, and prestress wire one end is by flange even
Connecting bolt is connected with blower fan tower barrel, and the prestress wire other end extends through bottom by being embedded in the end from central post top always
Anchor plate in plate is fixed.
Described base plate is arranged below bed course, and the bottom periphery on this basis is pressed with a circle jackstone.
Back-up sand stone is filled in described central post and in round box.
Described central post, cabinet exterior, base plate, lamina tecti and box partition are armored concrete material.
The beneficial effects of the utility model are: 1) be applicable to rock quality base marine site, execute owing to being not related to pile sinking and embedding rock etc.
Work operation, only needs small-sized crane ship auxiliary to sink, and offshore set-up puts into little, and the construction operation cycle is short, and cost is low.2) basis is setting
Have been contemplated that transportation by driving during meter and sink each stage, basis can be carried out the most surely by water body or sand body ballast, sink
Only the slowest water filling need to sink in each subdivision in journey, small-sized crane ship (200t～600t) auxiliary adjusts, it is not necessary to put into
Large-scale crane ship hangs holds up installation, reduces construction threshold and cost so that this kind of basis is more competed in offshore wind farm field at home
Power.3) sinking due to half latent barge and basis is from the floating requirement to the depth of water, this basis is suitable under tens meters of depth conditions installing, right
Dive hole can be set in conjunction with caisset size, periphery depth of water situation in the shallower seat in the plane of the depth of water, implement towing extremely when high tide level
In-site installation.4) substructure is the casing of subdivision, improves the stability on basis in transportation by driving and sinking watching.5) casing top
Use the oblique cover closure of reducing, seep water during basis transportation by driving and sinking can be prevented, affect floating stability.Reducing simultaneously
Top cover can effectively reduce the stress concentration of central post and lower part box connecting portion.
Accompanying drawing explanation
Fig. 1 is the facade layout drawing of this utility model embodiment.
Fig. 2 is the site plan of this utility model embodiment.
Detailed description of the invention
As shown in Figure 1 and Figure 2, embodiment offshore wind farm doleiform gravity type foundation is mainly by central post 1, lamina tecti 3, casing
Outer wall 4, box partition 5 and base plate 6 form.
Described basis is similar to up-small and down-big doleiform, and for reducing the wave load effect to basis, base center uses one
Leading to the small-bore central post 1 at the end, its upper end is connected with top blower fan tower barrel, (mean sea level below the middle part of central post
Below) for the large-diameter circular casing closed.This round box is by the tilting lamina tecti 3 of base plate 6, cabinet exterior 4, reducing and will
Round box is separated into the box partition 5 of several radial separations and forms.Described box partition 5 side and central post 1 outer wall
Connecting, opposite side is connected with cabinet exterior 4, and box partition 5 one aspect plays connection central post 1 and the effect of cabinet exterior 4, separately
On the one hand in foundation immersion installation process, when with water body ballast, the subdivision structure in basis can increase metacenter height, improves
From floating stability.Basis top use reducing lamina tecti 3 close, lamina tecti 3 upper end is connected with central post 1 outer wall, lower end and
Along connecting on cabinet exterior 4, this lamina tecti seeps water during can preventing basis transportation by driving and sinking, affects floating stability,
Reducing top cover can effectively reduce the stress concentration of central post and lower part box connecting portion simultaneously.
Described central post 1 is prestressed component, uniformly lays a circle prestress wire 2 along its barrel, often restraints prestressing force
Steel strand wires are connected with top blower fan tower barrel by 4 high-strength flange bolts 7, and this prestress wire 2 is from central post top
It is fixing with base plate 6 that portion extends through the end always.
Described base plate 6 is arranged below bed course 8, and the bottom periphery on basis is pressed with a circle jackstone 9.Central post 1 is interior and round
Back-up sand stone 10 is filled in shape casing.
The concrete construction method of the present embodiment is as follows:
The basic overall structure of this example, is including central post 1, cabinet exterior 4, lamina tecti 3, box partition 5, base plate 6
Armored concrete material, completes together with prestress wire 2 is the most prefabricated, including bed die install, framework of steel reinforcement install formwork,
Concreting, maintenance, form removal prestress wire stretch-draw.Before foundation immersion, bedding need to be processed, open including foundation trench
Dig, the compacting of foundation trench jackstone, bedding and the operation such as base bed flattening, it is ensured that the strength performance of bedding and flatness.Foundation trench excavation height
Degree and the excavation gradient determine according to concrete geological condition, need to ensure the relatively low mud of desurfacing bearing capacity and excavation slope
Stable.The thickness of throwing blotter 8 is according to regulating according to excavation flatness.Gravity type foundation transport uses air bag rolling fortune dress
Ship, barge container transport, and before every gravity type foundation is installed, need to calculate every basis in detail in transport, the pass of installation overall process
Bond parameter, such as: tugboat towing tension calculates, the structure of different irrigation swims stability Calculation, component is required when half dives and refute sinking
The water surface area wanted and the depth of water, need the control standard etc. that utilizes how many tidal level, crane ship to hang power numerical value.It is existing that basis is transported to construction
After Chang, half latent barge is in the water filling dive of basal perimeter position, and basis just has been contemplated that in design can be by caisson from water
In buoyancy realize from steady, auxiliary uses 200t～600t crane ship to install, and caisson is only implemented little model by the effect of crane ship
Enclose the adjustment up and down of (about 50cm), to adapt to fluctuation tide and to realize component implantation.Sinking complete after in box cavity and neutrality
Sandstone 10 is filled, to improve the stability on basis in post cavity.Need fill block stone throwing 9 in basal perimeter, basis is carried out protection against erosion
Protection.After whole base structure has been constructed, upper column drum flange can be connected by the bolt being embedded in basis.
Above-described embodiment is mainly used in offshore wind farm gravity type foundation, but is not limited thereto, and ties for ocean engineering
Other gravity type foundation structure involved by structure also can use technical solution of the present invention to carry out improveing to optimize base structure pattern.
Claims (5)
1. an offshore wind farm doleiform gravity type foundation, it is characterised in that: described basis is similar to up-small and down-big doleiform, in basis
The heart is the small-bore central post (1) end of through to, central post upper end connecting fan tower, and central post (1) middle part is following external
The large-diameter circular casing closed, this round box is by the tilting lamina tecti (3) of base plate (6), cabinet exterior (4), reducing and will
Round box is separated into box partition (5) composition of several radial separations, described box partition (5) side and central post
(1) outer wall connects, and opposite side is connected with cabinet exterior (4), and lamina tecti (3) upper end is connected with central post (1) outer wall, lower end and case
External wall (4) is upper along connecting.
Offshore wind farm doleiform gravity type foundation the most according to claim 1, it is characterised in that: described central post (1) is along it
Barrel uniformly lays a circle prestress wire (2), and flange bolt (7) and blower fan are passed through in prestress wire (2) one end
Tower connects, and prestress wire (2) other end extends through bottom by being embedded in base plate (6) from central post top always
Anchor plate is fixed.
Offshore wind farm doleiform gravity type foundation the most according to claim 1 and 2, it is characterised in that: described base plate (6) is below
Being provided with bed course (8), the bottom periphery on this basis is pressed with a circle jackstone (9).
Offshore wind farm doleiform gravity type foundation the most according to claim 3, it is characterised in that: in described central post (1) and
Back-up sand stone (10) is filled in round box.
Offshore wind farm doleiform gravity type foundation the most according to claim 1, it is characterised in that: described central post (1), casing
Outer wall (4), base plate (6), lamina tecti (3) and box partition (5) are armored concrete material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620556470.0U CN205776313U (en) | 2016-06-08 | 2016-06-08 | A kind of offshore wind farm doleiform gravity type foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620556470.0U CN205776313U (en) | 2016-06-08 | 2016-06-08 | A kind of offshore wind farm doleiform gravity type foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205776313U true CN205776313U (en) | 2016-12-07 |
Family
ID=58134073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620556470.0U Active CN205776313U (en) | 2016-06-08 | 2016-06-08 | A kind of offshore wind farm doleiform gravity type foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205776313U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862908A (en) * | 2016-06-08 | 2016-08-17 | 中国电建集团华东勘测设计研究院有限公司 | Offshore wind power bottle-shaped gravity foundation |
-
2016
- 2016-06-08 CN CN201620556470.0U patent/CN205776313U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862908A (en) * | 2016-06-08 | 2016-08-17 | 中国电建集团华东勘测设计研究院有限公司 | Offshore wind power bottle-shaped gravity foundation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205000355U (en) | Box gravity type marine wind power foundation structure | |
| CN107542101B (en) | Construction method of offshore four-buoy-buoyancy tank combined foundation structure | |
| CN205152976U (en) | Marine precast concrete cushion cap wind turbine foundation | |
| CN203213136U (en) | Caisson and pile combined foundation of consolidated subsoil | |
| CN103967031A (en) | Caisson and pile combined foundation of consolidated subsoil and construction method of caisson and pile combined foundation | |
| CN104389318B (en) | Reinforced concrete-steel structure hybrid gravity foundation for offshore wind power and construction method thereof | |
| CN102561371B (en) | Steel caisson enclosure structure at island-tunnel combination part and construction method thereof | |
| CN108867684A (en) | Offshore wind turbine gravity caisson basis and its installation method | |
| JP6270527B2 (en) | Installation method of offshore wind power generation equipment | |
| CN102296629B (en) | Tower-drum structure suitable for ocean engineering and installation method thereof | |
| CN204608815U (en) | Raft plate gravity offshore wind turbine foundation | |
| CN105862908A (en) | Offshore wind power bottle-shaped gravity foundation | |
| CN201891123U (en) | Single-wall steel hanging box with concrete bottom plate | |
| CN105908772B (en) | The construction method of offshore wind turbine gravity type foundation, basic system and gravity type foundation | |
| CN109797759A (en) | A kind of bionical precast-boxed cofferdam of sea scar and its construction method | |
| JP5738643B2 (en) | Installation method of offshore wind power generation equipment | |
| CN208763050U (en) | Offshore wind turbine gravity caisson basis | |
| CN205776313U (en) | A kind of offshore wind farm doleiform gravity type foundation | |
| CN210827529U (en) | Single-pile reinforced foundation of offshore wind power anti-icing structure | |
| CN201943084U (en) | Negative pressure bucket type foundation structure for offshore wind driven generator with stabilizers | |
| CN204491567U (en) | Prefabricated steel pipe pile wind power generation platform | |
| CN216515566U (en) | Tension type single-point mooring combined anchorage structure based on spiral anchor | |
| CN104652465A (en) | Seaborne wind turbine generator caisson foundation structure and construction method thereof | |
| CN204608816U (en) | Offshore wind farm unit laying foundation structure | |
| CN205205848U (en) | Cavity gravity type marine wind power basis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |