CN103195080A - Towing method for gravity foundation - Google Patents
Towing method for gravity foundation Download PDFInfo
- Publication number
- CN103195080A CN103195080A CN2013101059756A CN201310105975A CN103195080A CN 103195080 A CN103195080 A CN 103195080A CN 2013101059756 A CN2013101059756 A CN 2013101059756A CN 201310105975 A CN201310105975 A CN 201310105975A CN 103195080 A CN103195080 A CN 103195080A
- Authority
- CN
- China
- Prior art keywords
- gravity type
- type foundation
- buoyancy tank
- air buoyancy
- anchor cable
- 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.)
- Granted
Links
Images
Landscapes
- Foundations (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a towing method for a gravity foundation. The method comprises the steps of recharging seawater in a dock after the gravity foundation is preformed, and stopping recharging when the water level meets the requirement; suspending a plurality of buoyancy tanks on the periphery of the foundation, and recharging seawater again so that the buoyancy tanks and the foundation float upwards simultaneously; and opening a dock gate till the water level in the dock is consistent with the water level outside the dock and the foundation is stable, sailing a towboat in and connecting the towboat with the gravity foundation to tow the gravity foundation to a sinking site. The method is simple, convenient and quick, the buoyancy tanks can be recycled, the towing process is safe and stable, and the storm and wave resistance of the foundation is improved. The method is applicable to gravity foundations of different shapes and widely applied to fields of construction projects of water conservancy projects, ports, oceans, bridges, offshore wind power and the like.
Description
Technical field
The present invention relates to the towage technology of gravity type foundation in offshore wind farm, harbour and the ocean engineering, design a kind of method for towing of hanging the gravity type foundation of buoyancy tank especially.
Background technology
The gravity type foundation structure extensively applies in the middle of the engineerings such as water conservancy, harbour, ocean, bridge, and the exploitation of countries in the world offshore wind farm has especially in recent years driven new round gravity type foundation and built overbearing tide.The offshore wind farm energy has wind field turbulivity little, not land occupation, annual utilization hours advantages of higher.China has the abundant offshore wind farm energy, is 3 times of land wind energy according to statistics.
In the offshore wind turbine construction foundation structure modal be pile foundation, gravity type foundation and development in recent years tubular basis faster.Advantages such as gravity type foundation is simple with its structure design, durability is strong are applied to geological conditions preferably in the middle of the marine site in large quantities.But there is very big defective in gravity type foundation in work progress.Most of gravity type foundation build is big, weight is bigger, needs large vessel to carry it and carries out hauling operation, and be not suitable for the towage transportation; Even if gravity type foundation that can towage in case the seepage phenomenon occurs, can have a strong impact on the safety of gravity type foundation in the towage process and operation ship.For this reason, the present invention proposes a kind of gravity type foundation method for towing of airtight air buoyancy tank of hanging to improve stability and the safety in the gravity type foundation towage process.
Summary of the invention
Aim of the present invention, be bigger at build and the weight of present most of gravity type foundation, need large vessel to carry it and carry out hauling operation, and be not suitable for the problem of towage transportation, a kind of method for towing of hanging the gravity type foundation of air buoyancy tank is provided, and this method can improve stability and the safety of gravity type foundation in the towage process effectively.
The present invention is achieved by following technical solution.
A kind of method for towing of gravity type foundation has following steps:
(1) gravity type foundation 1 pre-formed after, will recharge seawater in the dock; Described gravity type foundation is that top is that cylinder, bottom are the hollow structure of cone;
(2) when water level in the dock surpass gravity type foundation 1 total Senior Three branch two the time stop seawater and recharge, air buoyancy tank A2, air buoyancy tank B3, air buoyancy tank C4 and air buoyancy tank D5 are connected by anchor cable AI6, anchor cable AII7, anchor cable BI8, anchor cable BII9, anchor cable CIl0, anchor cable CII11, anchor cable DIl2 and the anchor cable DII13 that is arranged on gravity type foundation 1 cone middle part respectively, air buoyancy tank is the radial periphery that is assemblied in gravity type foundation; Each air buoyancy tank is connected by pin AB22, pin BC23, pin CD24 and pin DA25 between any two; Be respectively arranged with vibration isolator AI14, vibration isolator AII15, vibration isolator BI16, vibration isolator BI17, vibration isolator CI18, vibration isolator CII19, vibration isolator DI20 and vibration isolator DII21 between each air buoyancy tank and the gravity type foundation 1; Described vibration isolator is separately positioned on inner edge and the base at air buoyancy tank two ends;
(3) after gravity type foundation 1 and air buoyancy tank are connected to an integral body, recharge seawater in the dock again, air buoyancy tank and gravity type foundation 1 begin come-up; After and gravity type foundation 1 floating stable consistent with water level outside the dock, open caisson when the dock water level, open into towboat and connect gravity type foundation 1;
(4) towboat drags gravity type foundation 1 to the sinking place, finishes the towage operation.
The gravity type foundation 1 of described step (1) is reinforced concrete structure, and the cylinder height on its top is 8m, and external diameter is 5m, and the height of lower cone body is 12m, and base diameter is 20m, and thickness is 0.8m.
The air buoyancy tank of described step (2) is steel frame construction, and the steel plate welding is made, and steel plate thickness is lcm; Its longitudinal section is polygon, and long limit and longer sides are respectively 8m and 6m, and its cross section is fan-shaped, and the camber line of interior outside and gravity type foundation 1 adapt; The external diameter that each airtight air buoyancy tank connects the integral ring-shaped supporting structure in back is 18m.
The quantity of the air buoyancy tank of described step (2) is 3～8.
The anchor cable of described step (2) is arranged on apart from the bottom surface of gravity type foundation 1 lower cone body and asks the 5m place, and anchor cable length is respectively 1.5m and 3m.
The invention has the beneficial effects as follows, adopt the gravity type foundation method for towing of hanging buoyancy tank, can finish the towage task of gravity type foundation convenient, fast, simply, effectively.In the towage process, airtight air buoyancy tank has strengthened stability and the safety of gravity type foundation in the towage process, has improved the anti-storm of gravity type foundation, the ability of anti-wave.In addition, airtight air buoyancy tank is with low cost, and is easily manufactured, recyclable utilization, and applicable to the gravity type foundation of the different bodily forms, have good and economic and compliance, be easy to promote.
Description of drawings
Fig. 1 is the generalized section of a kind of gravity type foundation of the present invention and tow attachment;
Fig. 2 is the vertical view of Fig. 1.
Description of reference numerals is as follows:
The airtight air buoyancy tank A of 1-gravity type foundation 2-
The 3-airtight air buoyancy tank C of buoyancy tank B 4-that holds one's breath
The airtight air buoyancy tank D of 5-6-anchor cable AI
7-anchor cable AII 8-anchor cable BI
9-anchor cable BII 10-anchor cable CI
11-anchor cable CII 12-anchor cable DI
13-anchor cable DII 14 vibration isolator AI
15-vibration isolator AII 16-vibration isolator BI
17-vibration isolator BI 18-vibration isolator CI
19-vibration isolator CII 20-vibration isolator DI
21-vibration isolator DII 22-pin AB
23-pin BC 24-pin CD
25-pin DA
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Specific embodiments of the invention, the towage basis is 3MW offshore wind turbine gravity type foundation, adopts the gravity type foundation method for towing of hanging buoyancy tank, step is as follows:
(1) gravity type foundation 1 pre-formed after, will recharge seawater in the dock; Described gravity type foundation is that top is that cylinder, bottom are the steel concrete hollow structure of cone, and the cylinder height on its top is 8m, and external diameter is 5m, and the height of lower cone body is 12m, and base diameter is 20m, and thickness is 0.8m.
(2) recharge seawater in the dock, when water level in the dock surpass the total Senior Three branch in basis two the time stop seawater and recharge, air buoyancy tank A2, air buoyancy tank B3, air buoyancy tank C4 and air buoyancy tank D5 are connected by anchor cable AI6, anchor cable AII7, anchor cable BI8, anchor cable BII9, anchor cable CIl0, anchor cable CII11, anchor cable DIl2 and the anchor cable DII13 that is arranged on gravity type foundation 1 circle thought body middle part respectively, air buoyancy tank is the radial periphery that is assemblied in gravity type foundation; Each air buoyancy tank is connected by pin AB22, pin BC23, pin CD24 and pin DA25 between any two; Be respectively arranged with vibration isolator AI14, vibration isolator AII15, vibration isolator BI16, vibration isolator BI17, vibration isolator CI18, vibration isolator CII19, vibration isolator DI20 and vibration isolator DII21 between each air buoyancy tank and the gravity type foundation 1; Described vibration isolator is separately positioned on inner edge and the base at air buoyancy tank two ends;
The quantity of described air buoyancy tank is 3～8, is steel frame construction, and the steel plate welding is made, and steel plate thickness is lcm; Its longitudinal section is polygon, and long limit and longer sides are respectively 8m and 6m, and its cross section is fan-shaped, and the camber line of interior outside and gravity type foundation 1 adapt; The external diameter that each airtight air buoyancy tank connects the integral ring-shaped supporting structure in back is 18m;
Described anchor cable is arranged on the 5m place that makes progress, bottom surface apart from gravity type foundation 1 lower cone body, and anchor cable length is respectively 1.5m and 3m.
(3) after gravity type foundation 1 and air buoyancy tank are connected to an integral body, recharge seawater in the dock again, air buoyancy tank and gravity type foundation (1) begin come-up; After consistent with water level outside the dock in the dock and gravity type foundation 1 floating stable, open caisson, open into towboat and connect gravity type foundation 1;
(4) towboat drags gravity type foundation 1 to the sinking place, finishes the towage operation.
The present invention can be widely used in having good and economic and compliance in the engineerings such as water conservancy, harbour, ocean, bridge.
Claims (5)
1. the method for towing of a gravity type foundation has following steps:
(1) gravity type foundation (1) pre-formed after, will recharge seawater in the dock; Described gravity type foundation is that top is that cylinder, bottom are the hollow structure of cone;
(2) when water level in the dock surpass the total Senior Three branch of gravity type foundation (1) two the time stop seawater and recharge, air buoyancy tank A (2), air buoyancy tank B (3), air buoyancy tank C (4) and air buoyancy tank D (5) are connected by anchor cable AI (6), anchor cable AII (7), anchor cable BI (8), anchor cable BII (9), anchor cable CI (10), anchor cable CII (11), anchor cable DI (12) and the anchor cable DII (13) that is arranged on gravity type foundation (1) cone middle part respectively, air buoyancy tank is the radial periphery that is assemblied in gravity type foundation; Each air buoyancy tank is connected by pin AB (22), pin BC (23), pin CD (24) and pin DA (25) between any two; Be respectively arranged with vibration isolator A I (14), vibration isolator AII (15), vibration isolator B I (16), vibration isolator B I (17), vibration isolator C I (18), vibration isolator CII (19), vibration isolator D I (20) and vibration isolator DII (21) between each air buoyancy tank and the gravity type foundation (1); Described vibration isolator is separately positioned on inner edge and the base at air buoyancy tank two ends;
(3) after gravity type foundation (1) and air buoyancy tank are connected to an integral body, recharge seawater in the dock again, air buoyancy tank and gravity type foundation (1) begin come-up; After consistent with water level outside the dock in the dock and gravity type foundation (1) floating stable, open caisson, open into towboat and connect gravity type foundation (1);
(4) towboat drags gravity type foundation (1) to the sinking place, finishes the towage operation.
2. according to a kind of method for towing of gravity type foundation, it is characterized in that the gravity type foundation (1) of described step (1) is reinforced concrete structure, the cylinder height on its top is 8m, and external diameter is 5m, and the height of lower cone body is 12m, base diameter is 20m, and thickness is 0.8m.
3. according to a kind of method for towing of gravity type foundation, it is characterized in that the air buoyancy tank of described step (2) is steel frame construction, the steel plate welding is made, and steel plate thickness is 1cm; Its longitudinal section is polygon, and long limit and longer sides are respectively 8m and 6m, and its cross section is fan-shaped, and the camber line of interior outside and gravity type foundation (1) adapt; The external diameter that each airtight air buoyancy tank connects the integral ring-shaped supporting structure in back is 18m.
4. according to a kind of method for towing of gravity type foundation, it is characterized in that the quantity of the air buoyancy tank of described step (2) is 3～8.
5. according to a kind of method for towing of gravity type foundation, it is characterized in that the anchor cable of described step (2) is arranged on the 5m place that makes progress, bottom surface apart from gravity type foundation (1) lower cone body, anchor cable length is respectively 1.5m and 3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310105975.6A CN103195080B (en) | 2013-03-28 | 2013-03-28 | Towing method for gravity foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310105975.6A CN103195080B (en) | 2013-03-28 | 2013-03-28 | Towing method for gravity foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103195080A true CN103195080A (en) | 2013-07-10 |
| CN103195080B CN103195080B (en) | 2014-11-19 |
Family
ID=48717883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310105975.6A Active CN103195080B (en) | 2013-03-28 | 2013-03-28 | Towing method for gravity foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103195080B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758148A (en) * | 2014-02-13 | 2014-04-30 | 天津大学前沿技术研究院有限公司 | Gravity type offshore wind power foundation capable of towing in self-floating mode and construction method thereof |
| CN103758147A (en) * | 2014-02-13 | 2014-04-30 | 天津大学前沿技术研究院有限公司 | Gravity type offshore wind turbine generator set foundation and towing and sinking method thereof |
| CN110158637A (en) * | 2019-06-12 | 2019-08-23 | 长江勘测规划设计研究有限责任公司 | Offshore wind farm bucket foundation constructing structure and construction method |
| CN110155264A (en) * | 2019-06-12 | 2019-08-23 | 长江勘测规划设计研究有限责任公司 | Offshore wind turbine composite tube basis towage structure and method for towing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748748A (en) * | 2010-01-21 | 2010-06-23 | 天津大学 | Air flotation towing method of bucket foundation with inbuilt float bowl |
| CN101775812A (en) * | 2010-01-21 | 2010-07-14 | 天津大学 | Built-in buoy towing barrel-shaped foundation sinking method |
| CN202298643U (en) * | 2011-10-26 | 2012-07-04 | 江苏海上龙源风力发电有限公司 | Negative-pressure cylinder type gravity foundation for offshore wind power |
| KR101171201B1 (en) * | 2011-12-26 | 2012-08-07 | 목포대학교산학협력단 | Offshore wind turbine structure using steel pipe pile foundation and prefabricated structure, and constructing method for the same |
-
2013
- 2013-03-28 CN CN201310105975.6A patent/CN103195080B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748748A (en) * | 2010-01-21 | 2010-06-23 | 天津大学 | Air flotation towing method of bucket foundation with inbuilt float bowl |
| CN101775812A (en) * | 2010-01-21 | 2010-07-14 | 天津大学 | Built-in buoy towing barrel-shaped foundation sinking method |
| CN202298643U (en) * | 2011-10-26 | 2012-07-04 | 江苏海上龙源风力发电有限公司 | Negative-pressure cylinder type gravity foundation for offshore wind power |
| KR101171201B1 (en) * | 2011-12-26 | 2012-08-07 | 목포대학교산학협력단 | Offshore wind turbine structure using steel pipe pile foundation and prefabricated structure, and constructing method for the same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758148A (en) * | 2014-02-13 | 2014-04-30 | 天津大学前沿技术研究院有限公司 | Gravity type offshore wind power foundation capable of towing in self-floating mode and construction method thereof |
| CN103758147A (en) * | 2014-02-13 | 2014-04-30 | 天津大学前沿技术研究院有限公司 | Gravity type offshore wind turbine generator set foundation and towing and sinking method thereof |
| CN103758147B (en) * | 2014-02-13 | 2015-12-09 | 天津大学前沿技术研究院有限公司 | A kind of gravity type offshore wind crew base and towage thereof and sinking method |
| CN110158637A (en) * | 2019-06-12 | 2019-08-23 | 长江勘测规划设计研究有限责任公司 | Offshore wind farm bucket foundation constructing structure and construction method |
| CN110155264A (en) * | 2019-06-12 | 2019-08-23 | 长江勘测规划设计研究有限责任公司 | Offshore wind turbine composite tube basis towage structure and method for towing |
| CN110155264B (en) * | 2019-06-12 | 2023-10-27 | 长江勘测规划设计研究有限责任公司 | Marine fan composite cylinder foundation towing structure and towing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103195080B (en) | 2014-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Guo et al. | Review of integrated installation technologies for offshore wind turbines: Current progress and future development trends | |
| CN202152102U (en) | Floating type wind power generation platform | |
| CN102677694B (en) | Offshore wind power submersible foundation structure and complete fan installation construction method thereof | |
| CN102182203B (en) | A kind of steel row's formula anemometer tower foundation and anemometer tower structure | |
| CN103362113B (en) | Offshore wind farm, bridge and marine works local buoyancy ocean platform and construction method | |
| CN104818727A (en) | Single pile and gravity combined offshore wind power foundation | |
| CN204979164U (en) | Floating wind turbine foundation and floating wind turbine generator system | |
| CN204040050U (en) | Mixed type offshore wind power foundation structure | |
| CN104925231A (en) | Floating fan foundation and floating wind generator set | |
| CN101837929B (en) | Operation method for lifting fan for barge in shoal area | |
| CN110984214A (en) | Offshore wind power single pile-wing plate-rockfill composite foundation and construction method thereof | |
| CN211646450U (en) | Offshore wind power single pile-wing plate-rockfill composite foundation | |
| CN104627331A (en) | Wind power generation floating foundation | |
| CN103195080B (en) | Towing method for gravity foundation | |
| EP2463524B1 (en) | Marine wind turbine whole machine | |
| CN205396471U (en) | Novel deep sea semi -submerged formula floating marine wind power platform | |
| CN204608815U (en) | Raft plate gravity offshore wind turbine foundation | |
| CN201713827U (en) | Fan base structure of offshore wind power station | |
| CN207998856U (en) | A kind of offshore wind turbine buoyant foundation | |
| CN201582062U (en) | Foundation structure of gravity type marine wind turbine group | |
| CN204491567U (en) | Pre-manufactured steel pile tube wind power generation platform | |
| CN110758662A (en) | Movable free-rising and sinking storm platform | |
| CN202987472U (en) | Truss type offshore wind turbine mounting barge capable of sitting on bottom | |
| CN211032946U (en) | Movable free-rising and sinking storm platform | |
| CN201649077U (en) | Variable-pile-diameter single pile foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |