CN212534191U - Back-assembled ice-resistant steel offshore wind power single-pile foundation structure - Google Patents
Back-assembled ice-resistant steel offshore wind power single-pile foundation structure Download PDFInfo
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- CN212534191U CN212534191U CN202022047345.6U CN202022047345U CN212534191U CN 212534191 U CN212534191 U CN 212534191U CN 202022047345 U CN202022047345 U CN 202022047345U CN 212534191 U CN212534191 U CN 212534191U
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Abstract
The utility model belongs to the technical field of offshore wind power engineering a back-loading type anti-icing shaped steel offshore wind power single pile foundation structure. The technical scheme is as follows: a plurality of downward-pressing type anti-icing components are annularly and uniformly arranged on the ring beam of the integrated type sleeve cage at intervals to form a discrete inverted cone ice breaking structure; the integrated type sleeve cage with the downward pressing type anti-ice component is arranged on a single pile foundation which is driven into a seabed, and the single downward pressing type anti-ice component comprises an upper supporting steel pipe, a lower supporting steel pipe and a downward pressing type connecting component; the length of the upper supporting steel pipe is larger than that of the lower supporting steel pipe, one end of the upper supporting steel pipe and one end of the lower supporting steel pipe are respectively fixed on the ring beam, and two ends of the downward pressing type connecting component are respectively connected with the overhanging ends of the upper supporting steel pipe and the lower supporting steel pipe. The utility model discloses the current integrated form cage of make full use of marine wind power single pile foundation structure when guaranteeing the anti ice unrestrained effect that disappears of marine wind power single pile foundation, realizes the simple and convenient efficient installation of back assembled anti ice structure.
Description
Technical Field
The utility model relates to an offshore wind power engineering technical field especially relates to an anti ice shaped steel offshore wind power single pile foundation structure.
Background
With the development of offshore wind power generation technology in China, single-pile foundations are more and more widely applied in offshore wind farm construction, but the single-pile wind turbine foundations in cold regions have two major challenges of facing strong wind and strong ice: the distribution of environmental factors has great relevance, and the foundation often faces the combined action of strong wind and strong ice, which puts higher requirements on the anti-overturning capability of the structure. As is well known, a wind power structure is taken as a high-rise flexible structure, and the influence of ice-induced vibration on the high-rise flexible structure under the action of strong ice is more fully considered.
Generally, an anti-ice cone structure can be designed and installed in a tidal range to reduce ice pressure and weaken the influence of ice-induced vibration on a fan, but the anti-ice cone structure is large in outer diameter and tends to cause the increase of wave load in a non-ice period. Because the extrusion strength of the natural sea ice is far greater than the bending strength of the natural sea ice, if the ice resisting component is set to be of a downward pressing type, the extrusion failure mode of the ice row before the structure is changed into bending failure, and the ice moving load can be effectively inhibited.
Currently, the common anti-icing methods are mainly divided into two categories, namely active ice breaking and passive ice breaking. The ice breaking and ice rushing and melting of the ice breaker are active ice breaking; the jacket ice cone resistance, the caisson platform resistance and the movable ice cone breaking belong to passive ice breaking. If a plurality of ice breaking modes can be effectively combined, the anti-ice effect can be further ensured.
For the construction of an external anti-ice structure, an anti-ice component is usually arranged on a pile leg of a jacket in the current marine engineering industry firstly and is put into water along with the jacket structure, the method is 'firstly installing method' construction, for offshore wind power single pile foundations, particularly single pile foundations without transition sections, if the anti-ice component is constructed by adopting the 'firstly installing method', huge exciting force is repeatedly acted on the single pile structures during pile sinking construction of the single pile foundations, the connecting parts of the anti-ice component and a pile body repeatedly bear the hammering action of a pile hammer, the connecting parts of the anti-ice component and the pile body are easy to be damaged or even separated, and the anti-ice component is damaged.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an after-assembling type anti-ice shaped steel offshore wind power single pile foundation structure. The utility model discloses the current integrated form cage of make full use of marine wind power single pile foundation structure when guaranteeing the anti ice unrestrained effect that disappears of marine wind power single pile foundation, realizes the simple and convenient efficient installation of back assembled anti ice structure.
The technical scheme of the utility model is that: a rear-assembled ice-resistant section steel offshore wind power single-pile foundation structure comprises a single-pile foundation which is driven into a seabed, and a plurality of downward-pressing ice-resistant components are annularly and uniformly arranged on a ring beam of an integrated sleeve cage at intervals to form a discrete inverted cone ice breaking structure; the integrated type sleeve cage with the downward pressing type anti-icing component is arranged on a single pile foundation, and the single downward pressing type anti-icing component comprises an upper supporting steel pipe, a lower supporting steel pipe and a downward pressing type connecting component; the length of the upper supporting steel pipe is larger than that of the lower supporting steel pipe, one end of the upper supporting steel pipe and one end of the lower supporting steel pipe are respectively fixed on the ring beam, and two ends of the downward pressing type connecting component are respectively connected with the overhanging ends of the upper supporting steel pipe and the lower supporting steel pipe.
Based on the technical characteristics: the angle between the press-down connecting member and the horizontal plane is 50-70 deg.
Based on the technical characteristics: the downward-pressing connecting component is a strip-shaped steel plate or section steel.
Based on the technical characteristics: the lower-pressure type anti-icing component is arranged into a single layer or a double layer up and down along the integrated lantern.
Based on the technical characteristics: and a cable wire is embedded in the upper support steel pipe, a heating wire is arranged in the downward pressing type connecting component, and the cable wire, the heating wire and the power supply source are combined to form the hot ice melting device.
The utility model has the advantages that:
1. the pressing-down type anti-ice component can be produced in a standardized mode according to drawings, and is simple in structure, convenient to splice and low in manufacturing cost.
2. The anti ice component of formula of pushing down with certain interval arrangement constitutes discrete back taper body structure that opens ice, compares with the anti ice awl structure of traditional real surface, and weight is lighter, and has reduced the waterline face area of anti ice structure, when guaranteeing good anti ice effect, has effectively restrained the increase by a wide margin of non-ice period wave power.
3. The integrated type sleeve cage of the offshore wind power single-pile foundation structure comprises auxiliary structures such as a ladder stand, a ship leaning component, a platform and a ring beam, and is fixed outside a pile body of a single-pile foundation. The utility model discloses to push down the anti ice component welding of formula on the collar tie beam of integrated form lantern ring, push down the anti ice component of formula and integrated lantern ring can be installed again after the land area environment is accomplished to the single pile basis of burying the seabed on, when shortening the marine activity duration for the processingquality of the anti ice component of formula of pushing down obtains effectively guaranteeing, has reduced safe risk.
4. According to the astronomical tide level and the tide difference and the ice condition in winter, the number of layers and the structural form of the downward pressing type ice resisting component can be flexibly arranged, and the safety of the ice resisting component is ensured, and meanwhile, the engineering quantity is favorably saved.
5. In the utility model, the heating wire, the cable and the power supply are combined into the hot ice melting device to realize active ice breaking; the application of the downward pressing type anti-icing component can realize passive ice breaking; the two are effectively combined, and the anti-icing effect can be further ensured.
The utility model discloses based on current marine wind power single pile foundation structure's integrated form cage, each resource integration acquires high-efficient simple and convenient construction method and reaches the effect of breaking ice and removing waves of ideal after optimizing, and to ensureing china's offshore wind turbine structure safety in northern sea area, it has the significance to reduce fan infrastructure cost.
Drawings
Fig. 1 is the utility model relates to a front view that anti ice component individual layer of formula of pushing down was arranged in anti ice shaped steel offshore wind power single pile foundation structure of back assembly formula was arranged.
Fig. 2 is the utility model relates to a back assembled anti ice shaped steel offshore wind power single pile foundation structure middle and lower pressure type anti ice component bilayer arranges's elevation.
Fig. 3 is the utility model relates to a back assembled anti ice shaped steel offshore wind power single pile foundation structure's plan view.
Fig. 4 is a big outline of the steel plate as the press-down type connecting member of the present invention.
Fig. 5 is a sectional view taken along line a-a of fig. 4.
Fig. 6 is a schematic view of the press-down type connecting member of the present invention being a profile steel.
Fig. 7 is a sectional view taken along line B-B of fig. 6.
Fig. 8 is a cross-sectional view taken along line C-C of fig. 7.
The reference numerals in the figures are meant to be: the anti-icing and anti-icing single pile foundation comprises a single pile foundation 1, an integrated type sleeve cage 2, a downward pressing type anti-icing component 3, a steel plate 4-1, section steel 4-2, an upper supporting steel pipe 5, a lower supporting steel pipe 6, a ring beam 7, a cable 8, an electric heating wire 9, a winter designed high water level 10 and a winter designed low water level 11.
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings. These embodiments are provided only for illustrating the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, 2 and 3, a plurality of lower-pressure anti-icing members 3 are circumferentially and uniformly arranged on an integrated type cage 2 at intervals to form a discrete inverted cone ice breaking structure, and the integrated type cage 2 with the lower-pressure anti-icing members 3 is installed on a monopile foundation 1 which is driven into the seabed. The longitudinal arrangement range of the lower pressure type anti-ice member 3 is greater than a tidal difference between the winter design high water level 10 and the winter design low water level 11. The ice-resistant component 3 can be arranged in a way that it is arranged like an attachment structure of the integrated cage 2 hit by a height. The auxiliary structure comprises a ladder stand, a ship leaning component, a platform and the like of the offshore wind power single-pile foundation.
As shown in fig. 4 to 8, the single downward pressing type anti-ice member 3 includes an upper support steel pipe 5, a lower support steel pipe 6, and a downward pressing type connection member; the length of the upper supporting steel pipe 5 is greater than that of the lower supporting steel pipe 6, one end of each of the upper supporting steel pipe 5 and the lower supporting steel pipe 6 is fixed on the ring beam 7 of the integrated type sleeve cage 2, two ends of the downward pressing type connecting member are connected with the overhanging ends of the upper supporting steel pipe 5 and the lower supporting steel pipe 6 respectively, and the included angle between the downward pressing type connecting member and the horizontal plane is preferably 50-70 degrees. As shown in fig. 4 and 5, the press-down type connecting member is a strip-shaped steel plate 4-1; as shown in fig. 6, 7 and 8, the push-down type connecting member may use the section steel 4-2 for the sea area having severe ice conditions.
When the tide difference of the winter astronomical tide level is large, that is, the difference between the winter design high water level and the winter design low water level is large, the push-down ice-resisting member may be provided as a double layer as shown in fig. 2.
As shown in fig. 5 and 7, the cable 8 is embedded in the upper support steel pipe 5, and the heating wire 9 is arranged in the downward pressing type connecting member; the cable 8, the heating wire 9 and the power supply form a hot ice melting device. Considering the placing position of the power supply and the convenience of construction, it is desirable to bury the cable 8 in the upper support steel pipe 5.
The utility model discloses in, an implementation mode of the anti ice shaped steel offshore wind power single pile foundation structure of back assembly formula can be:
(1) a cable 8 is embedded in the upper supporting steel pipe 5, and an electric heating wire 9 is arranged in the steel plate 4-1 or the section steel 4-2.
(2) And welding and assembling an upper support steel pipe 5, a lower support steel pipe 6 and a steel plate 4-1 or section steel 4-2 to form the lower-pressure type anti-icing component 3 on the land.
(3) And welding an upper support steel pipe 5 and a lower support steel pipe 6 of the downward-pressing type anti-ice component 3 on a ring beam 7 of the integrated type lantern ring 2 on the land.
(4) And (3) sinking the steel pipe pile on the single pile foundation 1.
(5) An integrated type sleeve cage 2 with a downward pressing type anti-icing component 3 is integrally arranged on the single pile foundation 1.
(6) The cable 8, the electric heating wire 9 and the power supply are connected to form a hot ice melting component.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (5)
1. A post-assembled ice-resistant steel offshore wind power single-pile foundation structure comprises a single-pile foundation (1) which is driven into a seabed, and is characterized in that: a plurality of downward-pressing type anti-icing components (3) are annularly and uniformly arranged on a ring beam (7) of the integrated type sleeve cage (2) at intervals to form a discrete inverted cone ice breaking structure; the integrated type lantern ring (2) with the lower-pressure type anti-icing component (3) is arranged on the single-pile foundation (1), and the single lower-pressure type anti-icing component (3) comprises an upper support steel pipe (5), a lower support steel pipe (6) and a lower-pressure type connecting component; the length of the upper supporting steel pipe (5) is greater than that of the lower supporting steel pipe (6), one end of the upper supporting steel pipe (5) and one end of the lower supporting steel pipe (6) are fixed on the ring beam (7), and two ends of the downward pressing type connecting component are connected with the other ends of the upper supporting steel pipe (5) and the lower supporting steel pipe (6) respectively.
2. The post-assembled ice-resistant steel offshore wind power single pile foundation structure of claim 1, wherein: the angle between the downward pressing type connecting component and the horizontal plane is 50-70 degrees.
3. The post-assembled ice-resistant steel offshore wind power single pile foundation structure of claim 1 or 2, wherein: the downward pressing type connecting component is a strip-shaped steel plate (4-1) or section steel (4-2).
4. The post-assembled ice-resistant steel offshore wind power single pile foundation structure of claim 1, wherein: the lower-pressure type anti-icing component (3) is arranged into a single layer or a double layer up and down along the integrated lantern ring (2).
5. The post-assembled ice-resistant steel offshore wind power single pile foundation structure of claim 1, 2 or 4, wherein: and a cable (8) is embedded in the upper supporting steel pipe (5), an electric heating wire (9) is arranged in the lower pressing type connecting component, and the cable (8), the electric heating wire (9) and a power supply source are combined to form the hot ice melting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022047345.6U CN212534191U (en) | 2020-09-18 | 2020-09-18 | Back-assembled ice-resistant steel offshore wind power single-pile foundation structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022047345.6U CN212534191U (en) | 2020-09-18 | 2020-09-18 | Back-assembled ice-resistant steel offshore wind power single-pile foundation structure |
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| CN212534191U true CN212534191U (en) | 2021-02-12 |
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| CN202022047345.6U Active CN212534191U (en) | 2020-09-18 | 2020-09-18 | Back-assembled ice-resistant steel offshore wind power single-pile foundation structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047346A (en) * | 2021-04-08 | 2021-06-29 | 大连海事大学 | Anti ice structure of prismoid type suitable for offshore wind power basis |
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2020
- 2020-09-18 CN CN202022047345.6U patent/CN212534191U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047346A (en) * | 2021-04-08 | 2021-06-29 | 大连海事大学 | Anti ice structure of prismoid type suitable for offshore wind power basis |
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