CN203475461U - Connection structure of offshore fan guide pipe frame and seabed pile foundation - Google Patents
Connection structure of offshore fan guide pipe frame and seabed pile foundation Download PDFInfo
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- CN203475461U CN203475461U CN201320493736.8U CN201320493736U CN203475461U CN 203475461 U CN203475461 U CN 203475461U CN 201320493736 U CN201320493736 U CN 201320493736U CN 203475461 U CN203475461 U CN 203475461U
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- grouting
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- pile
- offshore wind
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Abstract
The utility model discloses a connection structure of an offshore fan guide pipe frame and a seabed pile foundation. The connection structure comprises cylindrical pile feet on a fan guide pipe frame foundation and tubular seabed piles, wherein the pile feet correspond to the seabed piles in a one-to-one mode. The pile feet are inserted from tube openings in the upper ends of the seabed piles and suspended in the seabed piles, and annular stoppers are arranged between the inner walls of the seabed piles and the inserted head portions of the pile feet. Annular grouting cavities are defined by the annular stoppers, the pile feet and the seabed piles. High-position grouting pipes and low-position grouting pipes are arranged in the pile feet, high-position grouting openings and low-position grouting openings communicated with the grouting cavities are correspondingly formed in the walls of the pile feet, the high-position grouting pipes are in butt joint with the high-position grouting openings, and the low-position grouting pipes are in butt joint with the low-position grouting openings. The connection structure of the offshore fan guide pipe frame and the seabed pile foundation is stable and safe so as to adapt to the structural features of offshore wind power foundations.
Description
Technical field
The utility model relates to a kind of offshore wind turbine, particularly the syndeton on a kind of offshore wind turbine jacket and marine pile basis.
Background technology
In recent years, because land wind-powered electricity generation day hastens towards saturation, offshore wind farm develops rapidly.Blower foundation is the important step that offshore wind farm is built.Because muddy soft soil be take as main in east China greater coasting area seabed, offshore wind turbine foundation is mainly with many pile caps, and four, six pile leader frame bases are main, by the annular space between stake and blower foundation footing, are in the milk, and blower foundation is connected with stake.
The general steel pipe pile foundations that adopt of offshore wind turbine foundation, blower fan tower barrel is connected with marine pile basis by jacket basic platform more.Annular space between jacket basis footing and marine pile needs cement injection mortar, makes blower foundation and pile pipe form integral body, guarantees the reliable and stable of blower foundation.China's offshore wind farm construction experience is more shallow at present, and the construction of offshore wind power foundation is mostly used for reference the construction method of fixed offshore platform and carried out.Existing grouting process mainly contains following shortcoming, and the one, when cement mortar pours into from jacket top, the seawater in cavity can dilute the cement mortar preparing, and easily forms cavity, is difficult to guarantee the bonding strength of jacket and stake; The 2nd, because blower foundation is little with respect to the basis of ocean platform, the concentricity of more difficult control footing and marine pile when jacket inserts marine pile, affects the quality of connection between jacket basis footing and marine pile.
Utility model content
The purpose of this utility model has been to overcome the shortcoming of traditional ocean platform grouting process, adapts to the design feature of offshore wind power foundation, and Stability Analysis of Structures, a kind of offshore wind turbine jacket of safety and the syndeton on marine pile basis are provided.
The utility model is achieved through the following technical solutions:
The syndeton on a kind of offshore wind turbine jacket and marine pile basis, the footing that comprises cylindricality on blower fan jacket basis, and the marine pile of tubulose, footing is corresponding one by one with marine pile, footing is through marine pile upper end mouth of pipe insertion and unsettled in marine pile, between marine pile inwall and the head of footing insertion, there is annular plugging device, annular plugging device, footing and marine pile surround the grouting chamber of an annular, in footing, be furnished with high-order Grouting Pipe and low level Grouting Pipe, corresponding high-order grouting port and the low level grouting port communicating with described grouting chamber that have on footing wall, high-order Grouting Pipe is docked with high-order grouting port, low level Grouting Pipe is docked with low level grouting port.
The syndeton on offshore wind turbine jacket and marine pile basis as mentioned above, it is characterized in that: described annular plugging device is connected to form by the junction plate in bolt and marine pile by ring-shaped rubber, ring-shaped rubber outer rim fits tightly on marine pile inwall, ring-shaped rubber inner ring is lip packing inner ring, described footing lower end is sleeved in lip packing inner ring, and lip packing inner ring fits tightly on footing.
The syndeton on offshore wind turbine jacket and marine pile basis, is characterized in that: the cross section of described ring-shaped rubber is L-shaped as mentioned above.
The syndeton on offshore wind turbine jacket and marine pile basis as mentioned above, it is characterized in that: on footing, be provided with and can guide footing evenly to insert marine pile, can prevent that again footing and marine pile axle center from departing from excessive and damaging the guide strip of annular plugging device in installation process, guide strip head is provided with the large lead-in chamfered of external diameter gradual change from front to back.
The syndeton on offshore wind turbine jacket and marine pile basis, is characterized in that: described guide strip inserts in grouting chamber with footing head, and the grouting material in grouting chamber solidifies and is connected with guide strip as mentioned above.
The syndeton on offshore wind turbine jacket and marine pile basis as mentioned above, it is characterized in that: the upper and lower layering circumferential arrangement of polylith guide strip, be positioned at the guide strip circumference uniform distribution of same layer on footing, the poor 10～25mm of being of cylindrical body external diameter that described marine pile internal diameter and each guide strip surround.
The grouting syndeton on novel offshore wind turbine jacket and marine pile basis, is characterized in that: described low level grouting port is near described annular plugging device as mentioned above.
The grouting syndeton on novel offshore wind turbine jacket and marine pile basis, is characterized in that: described high-order grouting port is near the described marine pile upper end mouth of pipe as mentioned above.
The utility model has following advantage and effect with respect to prior art:
1, when footing on jacket basis is inserted to marine pile, by guide strip, can guarantee that the footing on jacket basis evenly inserts marine pile, while preventing that footing and marine pile axis deviation are excessive in installation process, cause the monolateral pressure of annular plugging device excessive and damage annular plugging device; Simultaneously guide strip can also guarantee the axiality between footing and marine pile, allows in annular grouting chamber the volume circumference of cement mortar more even.
2, the ring-shaped rubber in annular plugging device can fit tightly with marine pile, footing, and mortar leakage prevention, avoids waste, and guarantees the construction quality of grouting.
3, in jacket, be furnished with high-order Grouting Pipe and low level Grouting Pipe, during grouting, first use the operation of being in the milk of low level Grouting Pipe, from bottom, start grouting, because the severe of cement mortar is larger than seawater, seawater in grouting chamber is discharged from the marine pile top mouth of pipe gradually, cement paste can not be diluted, and is not easy to produce cavity, thereby has guaranteed grouting construction quality; After being grouted into certain altitude, adopt the grouting of high-order Grouting Pipe, can avoid grouting machine insufficient pressure like this and the grouting port that causes stops up.
Accompanying drawing explanation
Fig. 1 is offshore wind turbine jacket basis and marine pile foundation connection structure schematic diagram;
Fig. 2 is annular plugging device structural representation in marine pile.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
As depicted in figs. 1 and 2, the syndeton on a kind of offshore wind turbine jacket and marine pile basis, the footing 1 that comprises cylindricality on blower fan jacket basis, and the marine pile 2 of tubulose, footing 1 is corresponding one by one with marine pile 2, footing 1 is through marine pile 2 upper end mouths of pipe insertions and unsettled in marine pile 2, between marine pile 2 inwalls and the head of footing 1 insertion, there is annular plugging device 3, annular plugging device 3, footing 1 and marine pile 2 surround the grouting chamber 5 of an annular, and grouting is perfused with cement based high strength contraction-free grouting concrete (not shown) in chamber 5.Grouting chamber 5 degree of depth are to calculate according to the scale result of calculation of jacket basis and steel tube pile structure, need to guarantee that between footing 1 and marine pile 2, grouting is solidified with enough large bonding strength.In footing 1, be furnished with high-order Grouting Pipe 6 and low level Grouting Pipe 7, on footing 1 wall, correspondence has high-order grouting port and the low level grouting port communicating with the chamber 5 of being in the milk, and high-order Grouting Pipe 6 is docked with high-order grouting port, and low level Grouting Pipe 7 is docked with low level grouting port.Low level grouting port, near annular plugging device, makes grouting machine have enough grouting pressures.High-order grouting port is near the marine pile upper end mouth of pipe.
Wherein, annular plugging device 3 is connected to form by bolt 33 and the junction plate 32 in marine pile 2 by ring-shaped rubber 31.The cross section of ring-shaped rubber 31 is L-shaped.Ring-shaped rubber 31 outer rims fit tightly on marine pile 2 inwalls, and ring-shaped rubber 31 inner rings are lip packing inner ring, and footing 1 lower end is sleeved in lip packing inner ring, and lip packing inner ring fits tightly on footing 1.
For avoiding damaging annular plugging device 3 in assembling, on footing 1, be provided with and can guide footing 1 evenly to insert marine pile 2, can prevent that again footing 1 and marine pile 2 axle center from departing from excessive and damaging the guide strip 4 of annular plugging device 3 in installation process, guide strip 4 inserts in grouting chamber 5 with footing 1 head, and the grouting material in grouting chamber 5 solidifies and is connected with guide strip 4.Guide strip 4 heads are provided with the lead-in chamfered 41 that external diameter gradual change is from front to back large.The upper and lower layering circumferential arrangement of polylith guide strip 4, guide strip 4 even circumferentials that are positioned at same layer are welded on footing 1.For example 2,3 or 4 guide strips.Adopt 2 guide strips symmetrical; 120 degree are uniform to adopt 3 guide strips; 90 degree are uniform to adopt 4 guide strips.Each guide strip 4 circumferencial directions that are positioned at same layer surround the cylinder of an annular, poor 10～the 25mm of being of cylindrical body external diameter that marine pile 2 internal diameters and each guide strip 4 surround, while guaranteeing to insert on footing 1, can guide footing 1 evenly to insert marine pile 2, can prevent that again footing 1 and marine pile 2 axle center from departing from excessive and damaging annular plugging device 3 in installation process.
The grouting method of attachment on offshore wind turbine jacket and marine pile basis, comprises first step lifting: by loop wheel machine, the footing on jacket basis is inserted in marine pile; Second step grouting step, before lifting, in marine pile, install in advance annular plugging device, on footing, install guide strip, in footing, arrange high-order Grouting Pipe and low level Grouting Pipe, then in described second step filling process, first use the operation of being in the milk of low level Grouting Pipe, from bottom, start grouting; When being grouted near high-order grouting port, then adopt high-order Grouting Pipe grouting, until whole grouting step completes.On jacket basis, footing 1 is arranged on marine pile 2 tops by a plurality of braces of circle distribution, and marine pile 2 top end openings and brace joint do not seal.In filling process, because the proportion of cement mortar is larger than water, along with the cement mortar of grouting chamber 5 interior continuous injections, water is discharged from the marine pile 2 top mouths of pipe.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (8)
1. the syndeton on an offshore wind turbine jacket and marine pile basis, the footing that comprises cylindricality on blower fan jacket basis, and the marine pile of tubulose, footing is corresponding one by one with marine pile, footing is through marine pile upper end mouth of pipe insertion and unsettled in marine pile, it is characterized in that: between marine pile inwall and the head of footing insertion, have annular plugging device, annular plugging device, footing and marine pile surround the grouting chamber of an annular, in footing, be furnished with high-order Grouting Pipe and low level Grouting Pipe, corresponding high-order grouting port and the low level grouting port communicating with the chamber of being in the milk that have on footing wall, high-order Grouting Pipe is docked with high-order grouting port, low level Grouting Pipe is docked with low level grouting port.
2. the syndeton on offshore wind turbine jacket and marine pile basis according to claim 1, it is characterized in that: described annular plugging device is connected to form by the junction plate in bolt and marine pile by ring-shaped rubber, ring-shaped rubber outer rim fits tightly on marine pile inwall, ring-shaped rubber inner ring is lip packing inner ring, described footing lower end is sleeved in lip packing inner ring, and lip packing inner ring fits tightly on footing.
3. the syndeton on offshore wind turbine jacket and marine pile basis according to claim 2, is characterized in that: the cross section of described ring-shaped rubber is L-shaped.
4. according to the syndeton on offshore wind turbine jacket described in claim 1 or 2 or 3 and marine pile basis, it is characterized in that: on footing, be provided with and can guide footing evenly to insert marine pile, can prevent that again footing and marine pile axle center from departing from excessive and damaging the guide strip of annular plugging device in installation process, guide strip head is provided with the large lead-in chamfered of external diameter gradual change from front to back.
5. the syndeton on offshore wind turbine jacket and marine pile basis according to claim 4, is characterized in that: described guide strip inserts in grouting chamber with footing head, and the grouting material in grouting chamber is connected with guide strip is curing.
6. the syndeton on offshore wind turbine jacket and marine pile basis according to claim 5, it is characterized in that: the upper and lower layering circumferential arrangement of polylith guide strip, be positioned at the guide strip circumference uniform distribution of same layer on footing, the poor 10～25mm of being of cylindrical body external diameter that described marine pile internal diameter and each guide strip surround.
7. the grouting syndeton on a kind of novel offshore wind turbine jacket and marine pile basis according to claim 1, is characterized in that: described low level grouting port is near described annular plugging device.
8. according to the grouting syndeton on a kind of novel offshore wind turbine jacket and marine pile basis described in claim 1 or 7, it is characterized in that: described high-order grouting port is near the described marine pile upper end mouth of pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320493736.8U CN203475461U (en) | 2013-08-13 | 2013-08-13 | Connection structure of offshore fan guide pipe frame and seabed pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320493736.8U CN203475461U (en) | 2013-08-13 | 2013-08-13 | Connection structure of offshore fan guide pipe frame and seabed pile foundation |
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| CN203475461U true CN203475461U (en) | 2014-03-12 |
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| CN201320493736.8U Expired - Fee Related CN203475461U (en) | 2013-08-13 | 2013-08-13 | Connection structure of offshore fan guide pipe frame and seabed pile foundation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437372A (en) * | 2013-08-13 | 2013-12-11 | 广东明阳风电产业集团有限公司 | Connecting structure for jacket foundation and underwater pile foundation of offshore wind turbine and grouting method |
| CN103967036A (en) * | 2014-05-07 | 2014-08-06 | 中国水电顾问集团华东勘测设计研究院有限公司 | Pile and sleeve grouting connecting structure for offshore wind power generation and construction method thereof |
| CN104196053A (en) * | 2014-08-21 | 2014-12-10 | 中国海洋石油总公司 | Simple cylindrical foundation platform capable of being installed separately |
| CN104480937A (en) * | 2014-12-02 | 2015-04-01 | 中国能源建设集团广东省电力设计研究院 | Grouting connection unit and application method thereof |
| CN105604063A (en) * | 2015-12-28 | 2016-05-25 | 中交第三航务工程局有限公司 | Grouting technology for offshore wind power jackets |
| CN108331007A (en) * | 2018-05-17 | 2018-07-27 | 中能电力科技开发有限公司 | A kind of foundation structure and installation method for the high-power unit of offshore wind farm |
-
2013
- 2013-08-13 CN CN201320493736.8U patent/CN203475461U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437372A (en) * | 2013-08-13 | 2013-12-11 | 广东明阳风电产业集团有限公司 | Connecting structure for jacket foundation and underwater pile foundation of offshore wind turbine and grouting method |
| CN103967036A (en) * | 2014-05-07 | 2014-08-06 | 中国水电顾问集团华东勘测设计研究院有限公司 | Pile and sleeve grouting connecting structure for offshore wind power generation and construction method thereof |
| CN104196053A (en) * | 2014-08-21 | 2014-12-10 | 中国海洋石油总公司 | Simple cylindrical foundation platform capable of being installed separately |
| CN104480937A (en) * | 2014-12-02 | 2015-04-01 | 中国能源建设集团广东省电力设计研究院 | Grouting connection unit and application method thereof |
| CN104480937B (en) * | 2014-12-02 | 2016-05-04 | 中国能源建设集团广东省电力设计研究院有限公司 | Grouting linkage section device and using method thereof |
| CN105604063A (en) * | 2015-12-28 | 2016-05-25 | 中交第三航务工程局有限公司 | Grouting technology for offshore wind power jackets |
| CN105604063B (en) * | 2015-12-28 | 2018-04-17 | 中交第三航务工程局有限公司 | The grouting process of offshore wind farm jacket |
| CN108331007A (en) * | 2018-05-17 | 2018-07-27 | 中能电力科技开发有限公司 | A kind of foundation structure and installation method for the high-power unit of offshore wind farm |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20190813 |