CN201506979U - Grouting connection structure for pile foundation and jacket leg of offshore wind turbine - Google Patents

Grouting connection structure for pile foundation and jacket leg of offshore wind turbine Download PDF

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Publication number
CN201506979U
CN201506979U CN2009201794578U CN200920179457U CN201506979U CN 201506979 U CN201506979 U CN 201506979U CN 2009201794578 U CN2009201794578 U CN 2009201794578U CN 200920179457 U CN200920179457 U CN 200920179457U CN 201506979 U CN201506979 U CN 201506979U
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CN
China
Prior art keywords
grouting
annular space
jacket leg
steel pipe
pipe pile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009201794578U
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Chinese (zh)
Inventor
张金接
符平
赵卫全
黄立维
杨锋
邢占清
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China Institute of Water Resources and Hydropower Research
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China Institute of Water Resources and Hydropower Research
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Filing date
Publication date
Application filed by China Institute of Water Resources and Hydropower Research filed Critical China Institute of Water Resources and Hydropower Research
Priority to CN2009201794578U priority Critical patent/CN201506979U/en
Application granted granted Critical
Publication of CN201506979U publication Critical patent/CN201506979U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a grouting connection structure for a steel pipe pile foundation and a jacket leg of an offshore wind turbine, belonging to the fields of the ocean engineering and the wind power generation. The main technical scheme is that by the grouting connection at an annular space formed by a steel pipe pile and the jacket leg, the load at the upper part can be transferred to the steel pipe pile by a grouting calculus body; a shearing key is arranged in the annular space, so as to enhance the load transferring capacity of a grouting connection segment; guide bodies are arranged at the upper part and the lower part of the annular space, so that the steel pipe pile can be conveniently and smoothly inserted in the jacket leg in the piling construction; stoppers are arranged at the top part and the bottom part of the annular space, so as to ensure the smooth grouting. Cement-based high-strength no-shrinking grouting material is taken as the grouting material, the strength of the calculus body is high, and the connecting effect is reliable; grout is filled from an injection valve at the bottom of the annular space, and the grouting finishing standard can be controlled by a grout return valve at the upper part of the annular space. In the utility model, the effective connection of the whole section can be realized, no external force and heat can be applied to the steel structure, and the manufacturing error and the installing deviation of components can be easily absorbed; the grouting connection structure has no special requirement on equipment, has simple operation and can be successfully applied in an offshore anemometer tower in Jiangsu province, so as to be popularized for use further.

Description

The grouting syndeton of a kind of offshore wind turbine pile foundation and jacket leg
Affiliated technical field
The utility model relates to the grouting syndeton of a kind of steel pipe pile basis that offshore wind turbine foundation uses and jacket leg.
Background technology
Wind energy is a kind of regenerative resource of cleaning, and wind-power electricity generation is the principal mode of Wind Power Utilization.Marine wind regime is better than land, and sea surface roughness is little, and the wind turbulence intensity is little, and wind shear is little, has stable cardinal wind, and does not take land resources, and the offshore wind farm exploitation will be the important directions of wind-powered electricity generation development from now on.But the development and use of offshore wind farm are subjected to the maritime environment condition influence, and difficulty is a lot of greatly than landwid electric field in wind energy turbine set construction and operation maintenance.
The general steel pipe pile bases of adopting of offshore wind turbine foundation, pile foundation can connect by jacket structure with being connected of blower fan tower barrel more.Jacket structure is the space frame that trombone slide constituted by leg post and connection leg post, and steel pipe pile is squeezed into sea bed with the A/C frame by the leg post.Jacket structure is not subjected to fan type number and sea water advanced influence, does not need to carry out special riverbed cleaning before construction, and construction technology is simple.
The country that some offshore wind farm technology of Europe are flourishing has launched certain research in offshore wind turbine steel pipe pile basis and the application that the grouting of jacket leg is connected, and carried out practical application in some marine wind electric field engineering.In China, the offshore wind farm development and use also are in the starting stage, the grouting of pile foundation and jacket leg be connected use in the construction of ocean platform more, accumulated certain design and construction experience, but with in the middle of the grouting of jacket leg is connected the construction that is applied in offshore wind turbine foundation, need take into full account the design feature of offshore wind turbine: the basic scale of the relative ocean platform of blower foundation scale is little with pile foundation; Blower fan is a tall and slender structure, is subjected to the comprehensive function of multiple loads such as bigger wind load, wave load.Therefore, in order to guarantee the normal operation and the structural safety of offshore wind turbine, need the grouting quality of connection between pile foundation and jacket leg is proposed higher requirement.
The steel pipe pile pile foundation is connected with the grouting of jacket leg and has its unique construction technology advantage, and equipment is not had specific (special) requirements, and is simple to operate, and accumulated certain construction experience in the ocean platform engineering is used.By linkage section grouting agent, grouting construction technology and annular space structure are optimized, to increase the action effect that linkage section grouting connects, realize that offshore wind turbine steel pipe pile basis and jacket leg grouting are connected Chinese marine wind electric field application in construction, have important practical significance and bigger economic results in society.
Summary of the invention
The grouting syndeton that the purpose of this invention is to provide transition apparatus steel pipe pile basis that a kind of offshore wind turbine foundation is connected with the tower tube and jacket leg.
Technical scheme of the present invention is:
The grouting syndeton of a kind of offshore wind turbine pile foundation and jacket leg, form annular space by jacket leg inwall and pile foundation steel pipe pile outer wall, annular space inside is provided with shear key, guide way and upper and lower plugging device, shear key is arranged circumferentially between jacket leg inwall and steel pipe pile outer wall, guide way is positioned at the jacket leg inwall, upper and lower plugging device lays respectively at jacket top and bottom, is perfused with the high strength contraction-free grouting concrete of cement based in the annular space.
Shear key is evenly welded system along the steel pipe pile outer wall, and shear key can be bead, fillet weld band steel or fillet weld round steel.
Shear key is along steel pipe pile outer wall and the two-sided even weldering system of jacket leg inwall, and shear key can be bead, fillet weld band steel or fillet weld round steel.
The shear key of steel pipe pile outer wall and jacket leg inwall is an interlaced arrangement.
Be provided with grouting valve in the annular space bottom, top is provided with the slurry reflux valve.
The width of annular space is 40~50mm, and the shear key height is 6~8mm, and the shear key width is 10~15mm.
Grouting process adopts bottom grouting, promptly by annular space bottom grouting valve annular space is in the milk, and judges the grouting ending standard by the proportion that detects return valve place's backflow slurries.
Preferentially select the two-sided shear key that is provided with in the engineering for use, when portion is provided with shear key within it owing to the influence of jacket leg internal diameter, can adopt shear key is set at pile foundation steel pipe pile outer wall single face.
This beneficial effect of the invention is:
1, the offshore wind turbine pile foundation adopts grouting to be connected with jacket leg, can pass to steel pipe pile to upper load via grouting calculus body, and reliable in quality is simple to operate.
2, grouting connects and to have smooth tight, the full section in joint portion and effectively connect, and steel work is not applied external force and heat, is suitable for the connection of different surfaces shape, different bores.
3, between steel pipe pile basis and the leg post certain clearance is arranged, adopt grouting to connect and be easy to absorption component foozle and installation deviation.
4, grouting connects material and adopts the high strength contraction-free grouting concrete of cement based, and the calculus body does not have contraction, intensity height, connects reliable for effectly, can satisfy the structural safety of blower foundation under the extreme operating condition condition.
5, grouting process adopts bottom grouting, and grouting calculus body is more closely knit, and is good with the bond effect of steel pipe walls, do not have bigger hole.
6, the optimum design scope of annular space is 40~50mm, and the shear key height is 6~8mm, and shear key is wide to be 10~15mm.
7, at annular space shear key is set and improves the ability that the grouting linkage section transmits load greatly, and the grouting of two-sided setting connects effect and is better than single face shear key is set.
8, in annular space, establish guide way, can make things convenient for that steel pipe pile can insert jacket leg smoothly in the piling construction.
Description of drawings
Fig. 1: be offshore wind turbine pile foundation and jacket leg grouting syndeton schematic diagram;
Fig. 2: the enlarged diagram that is A portion among Fig. 1.
Wherein: 1-jacket leg, 2-pile foundation steel pipe pile, 3-jacket, 4-job platform, 5-blower fan tower barrel, 6-annular space; The 7-shear key; The 8-guide way; 9-top plugging device, 10-bottom plugging device, 11-grouting valve; 12-slurry reflux valve.
The specific embodiment
In conjunction with the accompanying drawings 1, shown in 2, the grouting syndeton of a kind of offshore wind turbine pile foundation and jacket leg, jacket leg (1) inwall and pile foundation steel pipe pile (2) outer wall form annular space (6), annular space (6) inside is provided with shear key (7), on guide way (8) reaches, following plugging device (9,10), shear key (7) is arranged circumferentially between jacket leg inwall and steel pipe pile outer wall, guide way (8) is positioned at the jacket leg inwall, on, following plugging device (9,10) lay respectively at jacket top and bottom, be perfused with the high strength contraction-free grouting concrete of cement based in the annular space; Shear key (7) is along steel pipe pile outer wall and the two-sided even weldering system of jacket leg, and shear key (7) can be bead, fillet weld band steel or fillet weld round steel; The shear key of steel pipe pile (2) outer wall and jacket leg (1) inwall is an interlaced arrangement; Annular space (6) bottom is provided with grouting valve (11), and top is provided with the slurry reflux valve; The width of annular space (6) is 40~50mm, and shear key (7) highly is 6~8mm, and shear key (7) width is 10~15mm.
The appropriate design that this grouting connects pattern is: adopt jacket structure as the offshore wind turbine foundation structural shape, connect pattern by grouting and realize being connected of jacket leg and steel pipe pile, this connection pattern has: 1. the joint portion smooth tight, section effectively connects entirely; 2. steel work is not applied external force and heat; 3. be suitable for the connection of different surfaces shape, different bores; 4. owing between steel pipe pile and the leg post certain clearance is arranged, be easy to absorption component foozle and installation deviation.
Adopt the high-strength shrinking-free grouting material of cement based, the consolidating strength height, grouting connects reliable for effect, can satisfy the structural safety of blower foundation under the extreme operating condition condition; Adopt the grouting process grouting of annular space bottom, constructing operation is simple, and grouting calculus body is closely knit, and is good with the bond effect of steel pipe walls, do not have bigger hole; At annular space shear key is set and improves the ability that the grouting linkage section transmits load greatly.
This syndeton adopts grouting to connect, and equipment is not had specific (special) requirements, and is simple to operate, and obtained successful Application in the marine anemometer tower linkage section in Xiangshui County, Jiangsu, can further promote the use of.

Claims (6)

1. the grouting syndeton of offshore wind turbine pile foundation and jacket leg, it is characterized in that, jacket leg (1) inwall and pile foundation steel pipe pile (2) outer wall form annular space (6), annular space (6) inside is provided with shear key (7), guide way (8) and upper and lower plugging device (9,10), shear key (7) is arranged circumferentially between jacket leg inwall and steel pipe pile outer wall, guide way (8) is positioned at the jacket leg inwall, upper and lower plugging device (9,10) lays respectively at jacket top and bottom, is perfused with the high strength contraction-free grouting concrete of cement based in the annular space.
2. the grouting syndeton of offshore wind turbine pile foundation according to claim 1 and jacket leg is characterized in that, shear key (7) is evenly welded system along the steel pipe pile outer wall, and shear key (7) can be bead, fillet weld band steel or fillet weld round steel.
3. the grouting syndeton of offshore wind turbine pile foundation according to claim 1 and jacket leg, it is characterized in that, shear key (7) is along steel pipe pile outer wall and the two-sided even weldering system of jacket leg inwall, and shear key (7) can be bead, fillet weld band steel or fillet weld round steel.
4. the grouting syndeton of offshore wind turbine pile foundation according to claim 3 and jacket leg is characterized in that, the shear key of pile foundation steel pipe pile (2) outer wall and jacket leg (1) inwall is an interlaced arrangement.
5. according to the grouting syndeton of claim 1,2,3 or 4 described offshore wind turbine pile foundations and jacket leg, it is characterized in that described annular space (6) bottom is provided with grouting valve (11), top is provided with slurry reflux valve (12).
6. the grouting syndeton of offshore wind turbine pile foundation according to claim 5 and jacket leg is characterized in that, the width of annular space (6) is 40~50mm, and shear key (7) highly is 6~8mm, and shear key (7) width is 10~15mm.
CN2009201794578U 2009-09-14 2009-09-14 Grouting connection structure for pile foundation and jacket leg of offshore wind turbine Expired - Fee Related CN201506979U (en)

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Application Number Priority Date Filing Date Title
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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102535534A (en) * 2012-01-05 2012-07-04 江苏海上龙源风力发电有限公司 Construction process for leveling and grouting intertidal zone polygonal bracket fan foundation
CN102561354A (en) * 2012-01-19 2012-07-11 中国水电顾问集团华东勘测设计研究院 Grouting and ballast structure for offshore wind power foundation grouting connection
CN102587405A (en) * 2012-02-27 2012-07-18 广东明阳风电产业集团有限公司 Installation method of guide pipe frame foundation of offshore wind turbine and separated type guide pipe frame device
CN102619227A (en) * 2011-01-31 2012-08-01 华锐风电科技(江苏)有限公司 Grouting device, assembly and grouting method for single pipe pile foundation of offshore wind turbine generating set
CN102644325A (en) * 2012-03-31 2012-08-22 中国海洋石油总公司 Grouting connection node for deepwater floating type platform steel structures
CN102733410A (en) * 2012-07-18 2012-10-17 中国水电顾问集团中南勘测设计研究院 Jacket wind turbine foundation connecting piece
CN102767189A (en) * 2012-07-31 2012-11-07 中铁第五勘察设计院集团有限公司 Set bearing platform foundations and construction method thereof
CN103174159A (en) * 2011-12-23 2013-06-26 华锐风电科技(集团)股份有限公司 Single tubular pile base equipment of offshore wind power generating set
CN103233481A (en) * 2013-04-17 2013-08-07 广东明阳风电产业集团有限公司 Jacket support structure capable of being connected through grouting
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
CN104044706A (en) * 2014-05-06 2014-09-17 中国海洋石油总公司 Grouting and Welding Combined Connection Joint Applied to a Deepwater Floating Type Platform and an Offshore Installation Method Thereof
CN104153384A (en) * 2014-08-22 2014-11-19 熊翱 On-sea sandwich steel pipe pile foundation and construction method
CN104302842A (en) * 2012-05-09 2015-01-21 西班牙阿尔斯通可再生能源有限公司 Wind turbine foundation
CN105604084A (en) * 2016-03-02 2016-05-25 福建省水利水电勘测设计研究院 Underwater high-pressure grouting connecting structure for offshore wind turbine foundation steel pipe pile and transition section and installation process of underwater high-pressure grouting connecting structure
CN105862907A (en) * 2016-06-04 2016-08-17 福建省新能海上风电研发中心有限公司 Annular combination type super-large diameter offshore wind power single pile foundation and construction technology thereof
CN107034911A (en) * 2017-05-25 2017-08-11 中国能源建设集团广东省电力设计研究院有限公司 Marine wind electric field many blower foundations waterborne and Wind turbines
CN107386313A (en) * 2017-08-16 2017-11-24 中交第航务工程局有限公司 Offshore wind farm jacket construction exempts from leveling cylinder foundation and installation method
CN109653207A (en) * 2018-11-07 2019-04-19 南通市海洋水建工程有限公司 A kind of gap grouting process between offshore boosting station jacket structure and pile foundation

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102619227A (en) * 2011-01-31 2012-08-01 华锐风电科技(江苏)有限公司 Grouting device, assembly and grouting method for single pipe pile foundation of offshore wind turbine generating set
CN102619227B (en) * 2011-01-31 2014-05-14 华锐风电科技(江苏)有限公司 Grouting device, assembly and grouting method for single pipe pile foundation of offshore wind turbine generating set
CN103174159A (en) * 2011-12-23 2013-06-26 华锐风电科技(集团)股份有限公司 Single tubular pile base equipment of offshore wind power generating set
CN103174159B (en) * 2011-12-23 2015-11-25 华锐风电科技(集团)股份有限公司 Offshore wind turbine single pipe pile foundation device
CN102535534A (en) * 2012-01-05 2012-07-04 江苏海上龙源风力发电有限公司 Construction process for leveling and grouting intertidal zone polygonal bracket fan foundation
CN102535534B (en) * 2012-01-05 2016-01-20 江苏海上龙源风力发电有限公司 A kind of intertidal zone multi-angular bracket blower foundation leveling grouting construction process
CN102561354A (en) * 2012-01-19 2012-07-11 中国水电顾问集团华东勘测设计研究院 Grouting and ballast structure for offshore wind power foundation grouting connection
CN102561354B (en) * 2012-01-19 2014-10-08 中国水电顾问集团华东勘测设计研究院 Grouting and ballast structure for offshore wind power foundation grouting connection
CN102587405A (en) * 2012-02-27 2012-07-18 广东明阳风电产业集团有限公司 Installation method of guide pipe frame foundation of offshore wind turbine and separated type guide pipe frame device
CN102644325A (en) * 2012-03-31 2012-08-22 中国海洋石油总公司 Grouting connection node for deepwater floating type platform steel structures
CN102644325B (en) * 2012-03-31 2014-07-30 中国海洋石油总公司 Grouting connection node for deepwater floating type platform steel structures
CN104302842A (en) * 2012-05-09 2015-01-21 西班牙阿尔斯通可再生能源有限公司 Wind turbine foundation
CN102733410A (en) * 2012-07-18 2012-10-17 中国水电顾问集团中南勘测设计研究院 Jacket wind turbine foundation connecting piece
CN102767189B (en) * 2012-07-31 2014-06-25 中铁第五勘察设计院集团有限公司 Set bearing platform foundations and construction method thereof
CN102767189A (en) * 2012-07-31 2012-11-07 中铁第五勘察设计院集团有限公司 Set bearing platform foundations and construction method thereof
CN103233481B (en) * 2013-04-17 2015-08-12 广东明阳风电产业集团有限公司 A kind of jacket support structure connected that is in the milk
CN103233481A (en) * 2013-04-17 2013-08-07 广东明阳风电产业集团有限公司 Jacket support structure capable of being connected through grouting
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
CN104044706A (en) * 2014-05-06 2014-09-17 中国海洋石油总公司 Grouting and Welding Combined Connection Joint Applied to a Deepwater Floating Type Platform and an Offshore Installation Method Thereof
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
CN104153384A (en) * 2014-08-22 2014-11-19 熊翱 On-sea sandwich steel pipe pile foundation and construction method
CN105604084A (en) * 2016-03-02 2016-05-25 福建省水利水电勘测设计研究院 Underwater high-pressure grouting connecting structure for offshore wind turbine foundation steel pipe pile and transition section and installation process of underwater high-pressure grouting connecting structure
CN105862907A (en) * 2016-06-04 2016-08-17 福建省新能海上风电研发中心有限公司 Annular combination type super-large diameter offshore wind power single pile foundation and construction technology thereof
CN107034911A (en) * 2017-05-25 2017-08-11 中国能源建设集团广东省电力设计研究院有限公司 Marine wind electric field many blower foundations waterborne and Wind turbines
CN107386313A (en) * 2017-08-16 2017-11-24 中交第航务工程局有限公司 Offshore wind farm jacket construction exempts from leveling cylinder foundation and installation method
CN107386313B (en) * 2017-08-16 2020-02-11 中交第一航务工程局有限公司 Leveling-free cylinder foundation for offshore wind power jacket construction and installation method
CN109653207A (en) * 2018-11-07 2019-04-19 南通市海洋水建工程有限公司 A kind of gap grouting process between offshore boosting station jacket structure and pile foundation

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