CN105317054A - Draught fan foundation structure with single pile of transition sections and construction method - Google Patents
Draught fan foundation structure with single pile of transition sections and construction method Download PDFInfo
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- CN105317054A CN105317054A CN201510430990.7A CN201510430990A CN105317054A CN 105317054 A CN105317054 A CN 105317054A CN 201510430990 A CN201510430990 A CN 201510430990A CN 105317054 A CN105317054 A CN 105317054A
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- single pile
- pile
- pile body
- changeover portion
- transition sections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a draught fan foundation structure with a single pile of transition sections. The draught fan foundation structure with the single pile of the transition sections comprises a single pile body and the transition sections. The transition sections are internally arranged on the inner side of the single pile body and are connected with the single pile body to form a whole through welding. The upper ends of the transition sections are connected with an upper tower barrel through flange rings. Operation platforms are arranged at the upper end of the single pile body and are located on the outsides of the lower ends of the transition sections. The operation platforms are clamped and buckled in preformed clamping grooves in the outside of the upper end of the single pile body. A construction method comprises five steps. The draught fan foundation structure with the single pile of the transition sections is different from a structure scheme with transition sections on the outsides, offshore grouting is not needed, the offshore operation time is saved and the cost is reduced; in addition, the transmission force of the structure is mainly conducted through a welding structure, so that the reliability of the structure is increased. Compared with a single pile foundation without a transition section structure, the requirements for construction equipment and construction technology are lowered; under the background that offshore wind power will be developed on a large scale, the construction progress is speeded up, and the verticality requirement of a single pile foundation and the safety of a flange ring structure can be ensured.
Description
Technical field
The present invention relates to a kind of fan foundation structure, particularly relate to a kind of band changeover portion single pile fan foundation structure and construction method.
Background technology
Offshore wind turbine single-pile foundation structure is due to simplicity of design, it is convenient to build, the advantage and being widely adopted such as be easy to construct, reduce investment outlay, and European offshore wind turbine single-pile foundation structure accounting is between 60%-70%, and single pile structure has also been selected in marine wind electric field part seat in the plane, domestic Jiangsu Rudong.According to Europe and domestic experience, offshore wind turbine unit requires higher to single pile verticality, and offshore wind turbine single-pile foundation structure takes two schemes for this reason: be with changeover portion (outside) structure and be not with transition section structure.European offshore wind park single-pile foundation is controlled single pile verticality by changeover portion (outside) structure, and domestic if eastern marine wind electric field single-pile foundation is by construction equipment, and construction technology process controls single pile structure vertical degree.For band transition section structure scheme: need increase changeover portion component and be in the milk between changeover portion and stake, increase time and the cost of investment of operation on the sea, and mainly carry out stressed transmission by grouted-aggregate concrete material between changeover portion and stake, the reliability of concrete material performance and grouting construction process is just most important.For not being with transition section structure scheme: in piling process, how the verticality of bonding pilework and the safety of flange ring structure become the emphasis in construction, also construction ship and construction technology are had higher requirement, therefore the structure not with changeover portion in existing single pile fan foundation structure, though structure is simple but holding capacity is poor, physical life is short, though the holding capacity of band changeover portion is strong, but complex structure, installs loaded down with trivial details time-consuming, effort.
Summary of the invention
In order to solve the weak point existing for above-mentioned technology, the invention provides a kind of band changeover portion single pile fan foundation structure and construction method.
In order to solve above technical problem, the technical solution used in the present invention is: a kind of band changeover portion single pile fan foundation structure, and comprise single pile pile body, changeover portion, changeover portion is built in the inner side of single pile pile body and connects into an entirety by welding and single pile pile body; The tower cylinder that face is caught up with by flange ring in the upper end of changeover portion is connected;
The upper end of single pile pile body is provided with operating platform, and operating platform is positioned at the lower end outside of changeover portion; Operating platform is buckled on draw-in groove default outside single pile pile body upper end.
The external diameter of single pile pile body is 4 ~ 7 meters; The shape of operating platform is circular or square.
The wall thickness of single pile pile body is 30 ~ 50 millimeters, and the diameter of flange ring is less than the internal diameter of single pile pile body 10 millimeters; The length of flange ring is 1 ~ 2 times of Single Pile body diameter.
Construction method with changeover portion single pile fan foundation structure is:
(1), single pile pile body land formation is complete be transported to wind energy turbine set after, carry out piling construction by special pile driving equipment, until single pile pile body reaches projected depth, then carry out the process of jackstone protection against erosion;
(2), to the verticality of single pile pile body measure, determine the gradient of single pile pile body;
(3), operating platform after build the side has welded in advance, be transported to fabricating yard, after single pile pile body has been driven piles, lifting operating platform has directly been installed on the reserved draw-in groove in single-pile foundation top;
(4), after operating platform installs, as temporary construction platform;
(5), built-in changeover portion is installed, according to the gradient of single pile structure, adjusts the position of built-in changeover portion, ensure that changeover portion verticality reaches requirement.
The present invention is different from the structural concept of outer bands changeover portion, need not carry out sea grouting, save Potential Working Time For Operation At Sea, cost saving, and the power transmission of structure be mainly through welded construction, increase reliability of structure.Compared to not being with transition section structure single-pile foundation, construction equipment and construction process requirement are reduced, at sea wind-powered electricity generation is by under the background of large-scale development, is conducive to accelerating construction progress, can the verticality requirement of bonding pile foundation and the safety of flange ring structure.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is structure of the present invention and installment state schematic diagram.
In figure: 1, single pile pile body; 2, operating platform; 3, changeover portion.
Detailed description of the invention
As shown in Figure 1, the present invention includes single pile pile body 1 and changeover portion 3.Changeover portion 3 is built in the inner side of single pile pile body 1 and connects into an entirety by welding and single pile pile body 1.The bottom of changeover portion 3 is inserted in single pile pile body 1 (being inserted into the elevation location of setting).The tower cylinder that face is caught up with by flange ring in the upper end of changeover portion 3 is connected, and can ensure the verticality of blower fan single-pile foundation structure eventually through the verticality of leveling changeover portion.
The external diameter of single pile pile body 1 is 4 ~ 7 meters.The upper end of single pile pile body 1 is provided with operating platform 2, and operating platform 2 is positioned at the lower end outside of changeover portion 3.The shape of operating platform 2 is circular or square.Operating platform 2 is buckled on draw-in groove default outside single pile pile body 1 upper end.
The wall thickness of single pile pile body 1 is 30 ~ 50 millimeters, and the diameter of flange ring is less than the internal diameter of single pile pile body 3 10 millimeters; The length of flange ring is 1 ~ 2 times of single pile pile body 3 external diameter.
The concrete implementation step of construction method is as follows:
1, single pile pile body 1 land formation is complete be transported to wind energy turbine set after, carry out piling construction by special pile driving equipment, until single pile pile body 1 reaches projected depth, then carry out the process of jackstone protection against erosion;
2, the verticality of single pile pile body 1 is measured, determine the gradient of single pile pile body;
3, operating platform 2 is after build the side has welded in advance, is transported to fabricating yard, and after single pile pile body 1 has been driven piles, lifting operating platform 2 is directly installed on the reserved draw-in groove in single-pile foundation 1 top; Adopt this kind of scheme simple to operate, do not affect single pile piling construction again;
4, after operating platform 2 installs, as temporary construction platform;
5, built-in changeover portion 3 is installed, according to the gradient of single pile structure, adjusts the position of built-in changeover portion 3, ensure that changeover portion 3 verticality reaches requirement.
The present invention, compared with the structure of outer bands changeover portion, need not carry out sea grouting, save Potential Working Time For Operation At Sea, cost saving, and the power transmission of structure be mainly through welded construction, increase reliability of structure.Be not with compared with transition section structure single-pile foundation, construction equipment and construction process requirement are reduced, at sea wind-powered electricity generation is by under the background of large-scale development, is conducive to accelerating construction progress, can the verticality requirement of bonding pile foundation and the safety of flange ring structure.
Above-mentioned embodiment is not limitation of the present invention; the present invention is also not limited in above-mentioned citing; the change that those skilled in the art make within the scope of technical scheme of the present invention, remodeling, interpolation or replacement, also all belong to protection scope of the present invention.
Claims (4)
1. be with a changeover portion single pile fan foundation structure, comprise single pile pile body (1), changeover portion (3), it is characterized in that: described changeover portion (3) is built in the inner side of single pile pile body (1) and connects into an entirety by welding and single pile pile body (1); The tower cylinder that face is caught up with by flange ring in the upper end of described changeover portion (3) is connected;
The upper end of described single pile pile body (1) is provided with operating platform (2), and operating platform (2) is positioned at the lower end outside of changeover portion (3); Described operating platform (2) is buckled on draw-in groove default outside single pile pile body (1) upper end.
2. band changeover portion single pile fan foundation structure according to claim 1, is characterized in that: the external diameter of described single pile pile body (1) is 4 ~ 7 meters; The shape of described operating platform (2) is circular or square.
3. band changeover portion single pile fan foundation structure according to claim 1, is characterized in that: the wall thickness of described single pile pile body (1) is 30 ~ 50 millimeters, the diameter of flange ring is less than the internal diameter of single pile pile body (3) 10 millimeters; The length of flange ring is 1 ~ 2 times of single pile pile body (3) external diameter.
4. the band changeover portion single pile fan foundation structure according to claim 1-3, is characterized in that: the construction method of described band changeover portion single pile fan foundation structure is:
(1), single pile pile body (1) land formation is complete be transported to wind energy turbine set after, carry out piling construction by special pile driving equipment, until single pile pile body (1) reaches projected depth, then carry out the process of jackstone protection against erosion;
(2), to the verticality of single pile pile body (1) measure, determine the gradient of single pile pile body;
(3), operating platform (2) after build the side has welded in advance, be transported to fabricating yard, after single pile pile body (1) has been driven piles, lifting operating platform (2) has directly been installed on the reserved draw-in groove in single-pile foundation (1) top;
(4), after operating platform (2) installs, as temporary construction platform;
(5), built-in changeover portion (3) is installed, according to the gradient of single pile structure, adjusts the position of built-in changeover portion (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510430990.7A CN105317054A (en) | 2015-07-22 | 2015-07-22 | Draught fan foundation structure with single pile of transition sections and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510430990.7A CN105317054A (en) | 2015-07-22 | 2015-07-22 | Draught fan foundation structure with single pile of transition sections and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105317054A true CN105317054A (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510430990.7A Pending CN105317054A (en) | 2015-07-22 | 2015-07-22 | Draught fan foundation structure with single pile of transition sections and construction method |
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| CN (1) | CN105317054A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109715938A (en) * | 2016-09-09 | 2019-05-03 | 西门子歌美飒可再生能源公司 | Transition piece for wind turbine |
| CN113565689A (en) * | 2021-07-12 | 2021-10-29 | 华能灌云清洁能源发电有限责任公司 | Buckle structure for offshore wind turbine, offshore wind turbine and installation method of offshore wind turbine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2166586C2 (en) * | 1999-03-26 | 2001-05-10 | ОАО "Газпром" | Process of construction of base for cluster of wells on permafrost |
| CN201526424U (en) * | 2009-09-25 | 2010-07-14 | 中国水电顾问集团华东勘测设计研究院 | Single pile type foundation structure of offshore wind driven generator |
| CN201746849U (en) * | 2010-06-24 | 2011-02-16 | 上海勘测设计研究院 | Basic structure of offshore wind-power-station fan |
| CN204825951U (en) * | 2015-07-22 | 2015-12-02 | 龙源（北京）风电工程设计咨询有限公司 | Take changeover portion single pile fan foundation structure |
-
2015
- 2015-07-22 CN CN201510430990.7A patent/CN105317054A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2166586C2 (en) * | 1999-03-26 | 2001-05-10 | ОАО "Газпром" | Process of construction of base for cluster of wells on permafrost |
| CN201526424U (en) * | 2009-09-25 | 2010-07-14 | 中国水电顾问集团华东勘测设计研究院 | Single pile type foundation structure of offshore wind driven generator |
| CN201746849U (en) * | 2010-06-24 | 2011-02-16 | 上海勘测设计研究院 | Basic structure of offshore wind-power-station fan |
| CN204825951U (en) * | 2015-07-22 | 2015-12-02 | 龙源（北京）风电工程设计咨询有限公司 | Take changeover portion single pile fan foundation structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109715938A (en) * | 2016-09-09 | 2019-05-03 | 西门子歌美飒可再生能源公司 | Transition piece for wind turbine |
| CN109715938B (en) * | 2016-09-09 | 2021-08-03 | 西门子歌美飒可再生能源公司 | Transition piece for wind turbine |
| CN113565689A (en) * | 2021-07-12 | 2021-10-29 | 华能灌云清洁能源发电有限责任公司 | Buckle structure for offshore wind turbine, offshore wind turbine and installation method of offshore wind turbine |
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Application publication date: 20160210 |
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