CN104695411B - Prefabricated composite structural steel pile tube wind power generation platform - Google Patents

Prefabricated composite structural steel pile tube wind power generation platform Download PDF

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Publication number
CN104695411B
CN104695411B CN201510117868.4A CN201510117868A CN104695411B CN 104695411 B CN104695411 B CN 104695411B CN 201510117868 A CN201510117868 A CN 201510117868A CN 104695411 B CN104695411 B CN 104695411B
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China
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platform
prefabricated
pile
steel pile
wind power
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CN104695411A (en
Inventor
张建东
杨桂新
刘朵
王晓菲
邓文琴
李雪红
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Nanjing University of Science and Technology
JSTI Group Co Ltd
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Nanjing University of Science and Technology
JSTI Group Co Ltd
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Abstract

The open a kind of Prefabricated composite structural steel pile tube wind power generation platform of the present invention, include fastener for connection section, platform, prefabricated pile and foundation steel pile, fastener for connection section is arranged on the platform upper surface of horizontal positioned, fastener for connection section is perpendicular with platform, the lower surface of platform is supported by multiple prefabricated piles being disposed in parallel relation to one another, and is connected with foundation steel pile bottom prefabricated pile;Platform uses grouting treatment with prefabricated pile junction, and when the absolute altitude of junction is positioned at climax more than water level, it is ensured that bonding strength.The position that platform lower surface is connected with prefabricated pile is provided with groove, the top card of prefabricated pile and in described groove;Being connected by bayonet arrangement with between foundation steel pile bottom prefabricated pile, foundation steel pile is squeezed into sea bed supporting course by piling machinery, and foundation steel pile top absolute altitude exceeds sea bed elevation of top.The effective etching problem solving to be caused due to sea water at present.

Description

Prefabricated composite structural steel pile tube wind power generation platform
Technical field
The present invention relates to a kind of offshore wind power generation basic facility, particularly relate to a kind of pre-manufactured steel pile tube wind Power generation platform.
Background technology
Wind-powered electricity generation is new forms of energy with the fastest developing speed in world wide, and up to the present, China exists Large quantities of land wind energy turbine set has been built up in the Inner Mongol, Xinjiang, Gansu, northeast and the coastal region in east China.But Along with the fast development of wind-powered electricity generation industry, land wind-resources has used totally, and offshore wind farm is imperative, And China has very long coastline, and abundant offshore wind energy resource, offshore wind farm will obtain considerable Development.The data announced according to National Energy Board will have 44 offshore wind farm projects in showing following 2 years Go into operation, it can be seen that the coming years, offshore wind farm market prospect was the most wide.
Generally land wind power foundation is broadly divided into concrete spread foundation and pile foundation, sea turn Power generating basis and land wind power foundation are clearly distinguished from, owing to seabed generally is Muddy Bottoms Soil or the soft soil foundation of flour sand great soil group, foundation bearing capacity is the most on the low side, and offshore wind power generation basic is also The impact of wave to be considered, containing substantial amounts of sulfate ion and chloride ion, therefore sea turn in sea water The etching problem of power generating basis sea water to be considered.
Existing Oversea wind power generation platform pile foundation structure is substantially piling bar, and steel are in the seawater Corrosion phenomenon always is the key factor affecting platform service life, and platform needs a large amount of scenes to water Building operation, work on the spot amount is big, and operation inconvenience, efficiency is low.Along with increasing Oversea wind is sent out Level platform comes into operation, and studies a kind of side effectively extending platform service life and improving on-the-spot efficiency Formula has major and immediate significance.
Summary of the invention
Present invention is primarily targeted at, overcome the defect that existing offshore wind power platform exists, and carry For a kind of novel Prefabricated composite structural steel pile tube wind power generation platform, extend the service life of platform, from And be more suitable for practicality, and there is the value in industry.
The object of the invention to solve the technical problems realizes by the following technical solutions.Foundation The Prefabricated composite structural steel pile tube wind power generation platform that the present invention proposes, includes fastener for connection section, puts down Platform, prefabricated pile and foundation steel pile,
Described fastener for connection section is arranged on the platform upper surface of horizontal positioned, described fastener for connection section and institute State platform perpendicular,
The lower surface of described platform is supported by multiple prefabricated piles being disposed in parallel relation to one another, described prefabricated pile Bottom is connected with foundation steel pile;Described platform uses grouting treatment with prefabricated pile junction, it is ensured that even Connect intensity, and when the absolute altitude of junction is positioned at climax more than water level, it is to avoid seawater corrosion.
The position that described platform lower surface is connected with prefabricated pile is provided with groove, the top of described prefabricated pile Portion's card and in described groove;
It is connected by bayonet arrangement with between foundation steel pile bottom described prefabricated pile, described foundation steel pile Being squeezed into sea bed supporting course by piling machinery, foundation steel pile top absolute altitude exceeds sea bed elevation of top.
Further, aforesaid Prefabricated composite structural steel pile tube wind power generation platform, described platform is Triangular structure, at the gable top of the lower surface that described groove is separately positioned on described platform, institute State prefabricated pile to be arranged in described groove so that connect more firm.
Further, aforesaid Prefabricated composite structural steel pile tube wind power generation platform, described prefabricated pile For combinative structure, internal for being perpendicular to the reinforcing bar that described platform is arranged, the outer surface of described reinforcing bar is arranged There are external wrapping concrete, a large amount of sulfate ions comprised in significantly more efficient prevention sea water and chloride ion band The etching problem come, prefabricated pile uses prefabrication, has only to integral hoisting at the scene during construction, Save on-site construction operations difficulty, improve efficiency.
Further, aforesaid Prefabricated composite structural steel pile tube wind power generation platform, described prefabricated pile Bottom be provided with bayonet arrangement.
Further, aforesaid Prefabricated composite structural steel pile tube wind power generation platform, described bayonet socket is tied The internal diameter of structure is more than the external diameter of described foundation steel pile, and the top of described foundation steel pile is arranged on described bayonet socket In the bayonet socket of structure, connecting portion uses grouting treatment, and connecting portion is higher than sea bed absolute altitude, is positioned at In sea water.
Further, aforesaid Prefabricated composite structural steel pile tube wind power generation platform, the also company of including Fishplate bar, described connecting plate is cirque structure, and described connecting plate is welded on outside described fastener for connection section Portion, is bolted and fixes on the platform.
Further, aforesaid Prefabricated composite structural steel pile tube wind power generation platform, described steel pipe connecting What the outer surface of the section of connecing tilted is fixedly installed bracing members, and described bracing members is multiple, preferably 3.
Further, aforesaid Prefabricated composite structural steel pile tube wind power generation platform, described bracing members And in 30 °~60 ° of angles, preferably 30 ° or 45 ° between horizontal plane.
By technique scheme, the Prefabricated composite structural steel pile tube wind power generation platform of the present invention is at least Have the advantage that
The Prefabricated composite structural steel pile tube wind power generation platform infrastructure of the present invention, is positioned in sea water For steel reinforced concrete prefabricated pile, by arranging concrete in reinforcing bar outer wrapping, can solve to greatest extent The etching problem that a large amount of sulfate ions and the chloride ion comprised in sea water brings, by by work platforms, Steel reinforced concrete prefabricated pile uses the operation of prefabrication, greatly reduces the operation of marine site operation Amount, improves efficiency;The lower outside welding of fastener for connection section arranges connecting plate, by increasing capacitance it is possible to increase steel pipe connecting The section of connecing and the bonding strength of platform;Tilt in the periphery of fastener for connection section arranges multiple bracing members, uses In supporting steel pipe linkage section, its fixed effect of significantly more efficient guarantee.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the present invention's Technological means, and can be practiced according to the content of description, below with presently preferred embodiments of the present invention And after coordinating accompanying drawing to describe in detail such as.
Accompanying drawing explanation
Fig. 1 is the structural representation of Prefabricated composite structural steel pile tube wind power generation platform of the present invention;
Fig. 2 is the top view of Prefabricated composite structural steel pile tube wind power generation platform of the present invention;
Labelling implication in figure: 1. fastener for connection section, 2. bracing members, 3. connecting plate, 4. platform, 5. sea water, 6. sea bed, 7. bolt, 8. groove, 9. reinforcing bar, 10. prefabricated pile, 11. foundation steel pile, 12. external wrapping concretes, 13. bayonet arrangement.
Detailed description of the invention
By further illustrate the present invention by reaching the technological means taked and effect of predetermined invention, with Lower combination accompanying drawing and preferred embodiment, after the detailed description of the invention detailed description such as of the present invention.
The structure of the Prefabricated composite structural steel pile tube wind power generation platform of the present invention as shown in Figure 1 and Figure 2 Schematic diagram, includes fastener for connection section 1, bracing members 2, connecting plate 3, platform 4, sea water 5, sea bed 6, bolt 7, groove 8, reinforcing bar 9, prefabricated pile 10, foundation steel pile 11, external wrapping concrete 12 and card Mouth structure 13.
Fastener for connection section 1 and the horizontally disposed perpendicular setting of platform 4, be positioned at the upper surface of platform 4 Centre position, wherein connecting plate 3 is a cirque structure, and annular connecting plate 3 is welded on steel pipe Bottom the excircle of linkage section 1, it is fixed on platform 4 by bolt 4.In fastener for connection section 1 Three bracing members 2 it are provided with uniformly on excircle, bracing members 2 one end connecting platform 4 upper surface, one The excircle of end joint steel pipe linkage section 1, wherein bracing members 2 is arranged horizontal by 45 ° of angles, has Its fixing stability of the guarantee of effect.
Wherein platform 4 is armored concrete precast construction part, is shaped as triangle, at the end of platform 4 Being provided with circular groove 8 on lower surface, the diameter of circular groove 8 is slightly larger than the external diameter of prefabricated pile 10, Block in groove 8 structure of platform 4 bottom is inserted on prefabricated pile 10 top and fix, thus supporting flat Platform 4, connecting portion use grouting treatment, and more than water level time absolute altitude is positioned at climax, effectively keep away Exempt from the corrosion of sea water.
The cross section of prefabricated pile 10 is circular, uses factory process prefabricated, has only to whole time at the construction field (site) Body is installed, and prefabricated pile 10 is main by reinforcing bar 9, the commercially available external wrapping concrete 12 with anticorrosion ability Form with bottom bayonet arrangement 13.Prefabricated pile 10 top is connected with platform 4, bottom and foundation steel pile 11 are connected.Wherein the bayonet socket internal diameter of prefabricated pile 10 lower end bayonet arrangement 13 is slightly larger than foundation steel pile 11 External diameter, by the top card of foundation steel pile 11 with in the bayonet socket of bayonet arrangement 13 during connection, wherein blocks Mouth junction is positioned in sea water 5, uses underwater grouting to process, it is ensured that the intensity of junction.
Foundation steel pile 11 is round steel pipe, and its top absolute altitude is positioned at more than the elevation of top of sea bed 6, by Piling machinery is driven into sea bed 6 supporting course, to ensure fixing firmness.
When concrete installation operation, foundation steel pile 11 is driven into sea bed 6 supporting course and fixes by piling machinery, Prefabricated pile 10 integral hoisting factory process completed, to foundation steel pile 11 end face elevation location, is passed through Prefabricated pile 10 is fixed on foundation steel pile 11 upper end by prefabricated pile 10 lower end bayonet arrangement 13, and even The place of connecing carries out underwater grouting process, it is ensured that installation strength.
After prefabricated pile 10 installation and junction, lower end have some strength, by the reinforcing bar of prefabrication Concrete platform 4 lifts to prefabricated pile 10 end face absolute altitude, groove 8 and the prefabricated pile 10 of platform 4 End face one_to_one corresponding, and grouting treatment is used in groove 8 junction, strengthen interconnection function.
After armored concrete prefabricated platform 4 installation, by top steel pipe linkage section 1 by lower margin spiral shell Bolt 7 is connected on platform 4, arranges three uniformly at fastener for connection section 1 excircle after having connected Bracing members 2, it is ensured that its stability.Wind power tower drum carries out corresponding to fastener for connection section 1 by flange Connect.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any form On restriction, although the present invention is disclosed above with preferred embodiment, but is not limited to this Bright, any those skilled in the art, in the range of without departing from technical solution of the present invention, when can The technology contents utilizing the disclosure above is made a little change or is modified to the Equivalent embodiments of equivalent variations, In every case it is the content without departing from technical solution of the present invention, implements above according to the technical spirit of the present invention Any simple modification, equivalent variations and the modification that example is made, all still falls within the model of technical solution of the present invention In enclosing.

Claims (8)

1. a Prefabricated composite structural steel pile tube wind power generation platform, it is characterised in that: include fastener for connection section (1), platform (4), prefabricated pile (10) and foundation steel pile (11),
Described fastener for connection section (1) is arranged on platform (4) upper surface of horizontal positioned, and described fastener for connection section (1) is perpendicular with described platform (4),
The lower surface of described platform (4) is supported by multiple prefabricated piles (10) being disposed in parallel relation to one another, and described prefabricated pile (10) bottom is connected with foundation steel pile (11), and described platform (4) uses grouting treatment with described prefabricated pile (10) junction;
The position that described platform (4) lower surface is connected with prefabricated pile (10) is provided with groove (8), and the top card of described prefabricated pile (10) is combined in described groove (8);
Described prefabricated pile (10) bottom is connected by bayonet arrangement (13) with between foundation steel pile (11), and described foundation steel pile (11) is squeezed into sea bed supporting course by piling machinery, and described foundation steel pile (11) top absolute altitude exceeds sea bed elevation of top.
Prefabricated composite structural steel pile tube wind power generation platform the most according to claim 1, it is characterized in that: described platform (4) is triangular structure, at the gable top of the lower surface that described groove (8) is separately positioned on described platform (4), described prefabricated pile (10) is arranged in described groove (8).
Prefabricated composite structural steel pile tube wind power generation platform the most according to claim 1 and 2, it is characterized in that: described prefabricated pile (10) is combinative structure, internal for be perpendicular to the reinforcing bar (9) that described platform (4) is arranged, the outer surface of described reinforcing bar (9) is provided with external wrapping concrete (12).
Prefabricated composite structural steel pile tube wind power generation platform the most according to claim 3, it is characterised in that: the bottom of described prefabricated pile (10) is provided with bayonet arrangement (13).
5. according to the Prefabricated composite structural steel pile tube wind power generation platform described in claim 1 or 4, it is characterized in that: the internal diameter of described bayonet arrangement (13) is more than the external diameter of described foundation steel pile (11), and the top of described foundation steel pile (11) is arranged in the bayonet socket of described bayonet arrangement (13).
Prefabricated composite structural steel pile tube wind power generation platform the most according to claim 1, it is characterized in that: also include connecting plate (3), described connecting plate (3) is cirque structure, described connecting plate (3) is welded on the outside of described fastener for connection section (1), is bolted and is fixed on described platform (4).
7. according to the Prefabricated composite structural steel pile tube wind power generation platform described in claim 1 or 6, it is characterised in that: what the outer surface of described fastener for connection section (1) tilted is fixedly installed bracing members (2), and described bracing members (2) is multiple.
Prefabricated composite structural steel pile tube wind power generation platform the most according to claim 7, it is characterised in that: in 30 ° ~ 60 ° angles between described bracing members (2) and horizontal plane.
CN201510117868.4A 2015-03-17 2015-03-17 Prefabricated composite structural steel pile tube wind power generation platform Active CN104695411B (en)

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CN104695411B true CN104695411B (en) 2016-10-05

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4555976B2 (en) * 2004-04-28 2010-10-06 三谷セキサン株式会社 Concrete ready-made pile
JP4989409B2 (en) * 2007-10-18 2012-08-01 住友金属工業株式会社 Foundation pile structure, ready-made concrete pile, and joint hardware of ready-made concrete pile and steel pipe pile
CN103195040B (en) * 2013-04-17 2015-10-28 清华大学 A kind of light composite structure jacket type offshore platform
CN103352474A (en) * 2013-06-27 2013-10-16 天津大学 High-rise pile cap offshore wind power foundation combining vertical single pile and multiple raking piles
CN103334423B (en) * 2013-07-09 2016-06-29 中国人民解放军后勤工程学院 A kind of combined steel pile tube
CN204491567U (en) * 2015-03-17 2015-07-22 苏交科集团股份有限公司 Pre-manufactured steel pile tube wind power generation platform

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Inventor after: Zhang Jiandong

Inventor after: Yang Guixin

Inventor after: Liu Duo

Inventor after: Wang Xiaofei

Inventor after: Deng Wenqin

Inventor after: Li Xuehong

Inventor before: Zhang Jiandong

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Inventor before: Wang Xiaofei

Inventor before: Deng Wenqin

Inventor before: Li Xuehong

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