CN204212174U - Single pile adds taper pile brace type offshore wind turbine foundation structure - Google Patents

Single pile adds taper pile brace type offshore wind turbine foundation structure Download PDF

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Publication number
CN204212174U
CN204212174U CN201420524758.0U CN201420524758U CN204212174U CN 204212174 U CN204212174 U CN 204212174U CN 201420524758 U CN201420524758 U CN 201420524758U CN 204212174 U CN204212174 U CN 204212174U
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China
Prior art keywords
pile
offshore wind
wind turbine
single pile
foundation structure
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Active
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CN201420524758.0U
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Chinese (zh)
Inventor
孙杏建
郇彩云
姜贞强
沈锦宁
周胡
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PowerChina Huadong Engineering Corp Ltd
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PowerChina Huadong Engineering Corp Ltd
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Abstract

The utility model relates to a kind of single pile and adds taper pile brace type offshore wind turbine foundation structure.The purpose of this utility model is to provide a kind of single pile and adds taper pile brace type offshore wind turbine foundation structure, arranges minor diameter taper pile auxiliary increase overall structure horizontal bearing capacity, reduces center single pile steel pipe pile weight and diameter, reduce offshore steel pile tube and make difficulty of construction.The technical solution of the utility model is: a kind of single pile adds taper pile brace type offshore wind turbine foundation structure, there is single pile steel pipe pile and the upper flange linkage section by upper and lower Flange joint, and tighten connection by high-strength bolt between upper lower flange, it is characterized in that: described Flange joint section is welded into entirety by the connector and one group of splicing sleeve closing connection cast, this splicing sleeve guides the corresponding oblique piling of inclined tube stake to design altitude, and adopts grouting to be connected with inclined tube stake for overall.The utility model is applicable to offshore wind farm field of engineering technology.

Description

Single pile adds taper pile brace type offshore wind turbine foundation structure
Technical field
The utility model relates to a kind of single pile and adds taper pile brace type offshore wind turbine foundation structure, belongs to offshore wind farm field of engineering technology.
Background technology
At present, as the simplest a kind of offshore wind turbine foundation pattern of structure, single-pile foundation is the leading foundation structure pattern of European offshore wind park, in built marine wind electric field, account for 70%.Single-pile foundation is made up of single major diameter (more than 4m) steel pipe usually, and bottom is goed deep into, in soil, providing bearing capacity; Middle part is dipped in water bears the long-term ringing such as wave, ocean current, tide; Top is connected with blower fan tower barrel by linkage section or direct method welded flange.Along with the raising of domestic stake technique processed, pile driving equipment, pile setting capability, the application of single-pile foundation in China coastal seas Construction of Wind Power also will be increasingly extensive.
Offshore wind farm engineering is cost-saving, often adopt the Wind turbines of relatively high power, top fan loads is larger, and shallow top layer, domestic coastal area mostly is muddy soft soil, often diameter is larger to adopt single-pile foundation, cause pile sinking difficulty to strengthen, conventional marine single-pile foundation construction equipment cannot meet construction requirement.
Summary of the invention
The technical problems to be solved in the utility model is: the problem for above-mentioned proposition provides a kind of single pile to add taper pile brace type offshore wind turbine foundation structure, minor diameter taper pile auxiliary increase overall structure horizontal bearing capacity is set, reduction center single pile steel pipe pile weight and diameter, reduce offshore steel pile tube and make difficulty of construction.
The technical scheme that the utility model adopts is: a kind of single pile adds taper pile brace type offshore wind turbine foundation structure, there is single pile steel pipe pile and the upper flange linkage section by upper and lower Flange joint, and tighten connection by high-strength bolt between upper lower flange, it is characterized in that: described Flange joint section is welded into entirety by the connector and one group of splicing sleeve closing connection cast, this splicing sleeve guides the corresponding oblique piling of inclined tube stake to design altitude, and adopts grouting to be connected with inclined tube stake for overall.
Described single pile steel pipe pile diameter wall thickness 40 ~ 80mm; Splicing sleeve diameter wall thickness 30 ~ 40mm; Inclined tube stake diameter wall thickness 20 ~ 30mm, and be 10 ~ 50 °, α angle with single pile steel pipe pile.
The height of pile top of described single pile steel pipe pile is arranged at 2 ~ 3m AMSL.
The beneficial effects of the utility model are: adopt the less inclined tube stake of diameter to assist single pile steel pipe pile, increase structure level rigidity, solve because shallow top layer muddy soft soil thickness causes greatly excessive, the existing construction equipment of single-pile foundation structure diameter to meet the problems such as construction requirement.
Accompanying drawing explanation
Fig. 1 is elevation of the present utility model, for single pile steel pipe pile, Flange joint section are connected arrangement diagram with inclined tube stake.
Fig. 2 is I-I face of the present utility model top view, is inclined tube stake and single pile steel pipe pile layout plan.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the present embodiment is that the single pile being applied to offshore wind turbine adds taper pile brace type offshore wind turbine foundation structure, comprise single pile steel pipe pile 1 and the upper flange linkage section 2 be connected with lower flange 4 by upper flange 3, and tighten connection by high-strength bolt 5 between upper lower flange.Flange joint section 2 is welded into entirety by connector 6 and splicing sleeve 7, and this splicing sleeve adopts grouting 9 to be connected with inclined tube stake 8 for overall.Wherein, single pile steel pipe pile 1 diameter wall thickness 40 ~ 80mm; Splicing sleeve 7 diameter wall thickness 30 ~ 40mm; Inclined tube stake 8 diameter wall thickness 20 ~ 30mm.Single pile steel pipe pile 1 and lower flange 4 are processed and are welded in factory, and upper flange linkage section 2 and upper flange 3 are processed and be welded in factory.
First single pile steel pipe pile 1 is driven piles to design altitude during construction, after pile sinking completes, top Flange joint section 2 is installed; Connector 6, according to structure stress situation, adopts the closed tube connector that Plate Welding becomes, and splicing sleeve 7 and upper flange linkage section 2 are welded into entirety, for guiding inclined tube stake 8 piling construction; Inclined tube stake 8 utilizes splicing sleeve 7 to be guided oblique piling to design altitude, and adopts grouting 9 to be connected for entirety by inclined tube stake 8 with splicing sleeve 7; Inclined tube stake 8 diameter is less, and stake is long, with single pile steel pipe pile 1 in α angle, scope within 10 ~ 50 °, stake footpath and stake is long is determined by calculating.
According to unit in charge of construction's piling ability before the present embodiment requires to implement, determine inclined tube stake 8 diameter, stake long and and single pile steel pipe pile 1 between angle, avoid inclined tube stake 8 and upper flange linkage section 2 top to collide during design; And the height of pile top of single pile steel pipe pile 1 is arranged at 2 ~ 3m AMSL, be convenient to upper flange linkage section lifting construction installation exercise.

Claims (3)

1. a single pile adds taper pile brace type offshore wind turbine foundation structure, be there is single pile steel pipe pile (1) and the upper flange linkage section (2) be connected with lower flange (4) by upper flange (3), and tighten connection by high-strength bolt (5) between upper lower flange, it is characterized in that: described Flange joint section (2) is welded into entirety by closing the connector (6) connecting cast with one group of splicing sleeve (7), this splicing sleeve guides corresponding inclined tube stake (8) oblique piling to design altitude, and adopt grouting (9) to be connected with inclined tube stake (8) for overall.
2. according to claim 1, described single pile adds taper pile brace type offshore wind turbine foundation structure, it is characterized in that: described single pile steel pipe pile (1) diameter wall thickness 40 ~ 80mm; Splicing sleeve (7) diameter wall thickness 30 ~ 40mm; Inclined tube stake (8) diameter wall thickness 20 ~ 30mm, with single pile steel pipe pile (1) in α angle 10 ~ 50 °.
3. according to claim 1, described single pile adds taper pile brace type offshore wind turbine foundation structure, it is characterized in that: the height of pile top of described single pile steel pipe pile (1) is arranged at 2 ~ 3m AMSL.
CN201420524758.0U 2014-09-12 2014-09-12 Single pile adds taper pile brace type offshore wind turbine foundation structure Active CN204212174U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420524758.0U CN204212174U (en) 2014-09-12 2014-09-12 Single pile adds taper pile brace type offshore wind turbine foundation structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420524758.0U CN204212174U (en) 2014-09-12 2014-09-12 Single pile adds taper pile brace type offshore wind turbine foundation structure

Publications (1)

Publication Number Publication Date
CN204212174U true CN204212174U (en) 2015-03-18

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Family Applications (1)

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CN201420524758.0U Active CN204212174U (en) 2014-09-12 2014-09-12 Single pile adds taper pile brace type offshore wind turbine foundation structure

Country Status (1)

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CN (1) CN204212174U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105821897A (en) * 2016-03-29 2016-08-03 中国水利水电科学研究院 Vibroflotation mooring pile for reinforcing offshore wind power soft foundation and construction technology and equipment thereof
CN113323009A (en) * 2021-06-15 2021-08-31 中国长江三峡集团有限公司 Inclined strut offshore wind power single pile foundation with damping sleeve and construction method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105821897A (en) * 2016-03-29 2016-08-03 中国水利水电科学研究院 Vibroflotation mooring pile for reinforcing offshore wind power soft foundation and construction technology and equipment thereof
CN105821897B (en) * 2016-03-29 2017-11-17 中国水利水电科学研究院 Vibroflotation mooring pile and its construction technology and equipment for offshore wind farm reinforcing soft foundation
CN113323009A (en) * 2021-06-15 2021-08-31 中国长江三峡集团有限公司 Inclined strut offshore wind power single pile foundation with damping sleeve and construction method

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