CN105604084B - Offshore wind turbine foundation steel-pipe pile and changeover portion high undersea hydrostatic pressures grouting connection structure and its installation method - Google Patents
Offshore wind turbine foundation steel-pipe pile and changeover portion high undersea hydrostatic pressures grouting connection structure and its installation method Download PDFInfo
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- CN105604084B CN105604084B CN201610117176.4A CN201610117176A CN105604084B CN 105604084 B CN105604084 B CN 105604084B CN 201610117176 A CN201610117176 A CN 201610117176A CN 105604084 B CN105604084 B CN 105604084B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0061—Production methods for working underwater
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Foundations (AREA)
- Piles And Underground Anchors (AREA)
- Revetment (AREA)
Abstract
The present invention relates to a kind of offshore wind turbine foundation steel-pipe pile and changeover portion high undersea hydrostatic pressures grouting connection structure and its mounting process, it is characterised in that：Including going deep into the steel-pipe pile in sea bed body and being set in the transitional pipe segment of steel-pipe pile periphery and exposing sea bed surface, it is arranged with sealing ring and lower seal between the upper and lower terminal interior surface of the transitional pipe segment and steel-pipe pile outer surface, the transitional pipe segment lower part, which is located above lower seal, connects inlet pipe, the transitional pipe segment top, which is located at below upper sealing ring, connects grout outlet, the present invention can clearly observe grouting material quality by return pipe, effectively solve the problems, such as that underwater grouting quality is undetectable.
Description
Technical field：
The present invention relates to a kind of offshore wind turbine foundation steel-pipe pile and changeover portion high undersea hydrostatic pressures grouting connection structure and its installations
Method.
Background technology：
Wind energy is that technology is most ripe in new energy field, exploit condition on the largest scale as a kind of energy of high-efficiency cleaning
One of with the generation mode of commercialized development foreground.Compared with land wind power plant, marine wind electric field superior, ring with its wind-resources
The advantages such as guarantor, Economization on land, scale be big, are paid much attention to by more and more national.But marine engineering is because at sea applying
Work, operating mode is more severe, have the characteristics that can the construction time is short, difficulty of construction is big, huge by effect of natural conditions such as weather sea situations,
For the requirement higher of offshore wind turbine foundation construction.
Offshore wind turbine foundation generally mostly uses steel pipe pile foundation, steel-pipe pile and blower fan tower barrel can by steel-pipe space frame into
Row connection.It is connected by changeover portion between steel-pipe space frame and steel-pipe pile.Generally pass through grouting between steel-pipe pile and changeover portion
It is attached.For traditional offshore platform pile foundation when carrying out grouting construction, mostly top steel-pipe space frame leveling is complete
Cheng Hou, the annular space between changeover portion and steel-pipe pile use rubber ring waterstop sealing, mud, marine growth and water are prevented to enter
Annular space, to ensure that inner annular grouting space is isolated with briny environment.Such method is by grout pipe to changeover portion and steel
Annular space between pile pile carries out grout filling, and grouting pumps slip casting by conventional grout equipment, suitable for being primarily subjected to pressure
The offshore platform of load.Seawater wind turbine pile foundation structure is influenced by marine hydrology condition, need most of the time under water into
Grouting connection between row steel-pipe pile and changeover portion, grouting quality of connection are difficult to detect, meanwhile, with offshore platform with resistance to compression
Bearing capacity is that main operating mode is different, offshore wind turbine foundation with anti-pulling capacity for main operating mode, in order to ensure offshore wind turbine just
Often operation and structure safety, more stringent requirements are proposed for the grouting quality of connection between steel-pipe pile and changeover portion.
Invention content：
The purpose of the present invention is to provide a kind of offshore wind turbine foundation steel-pipe piles and changeover portion high undersea hydrostatic pressures grouting connection knot
Structure and its installation method, the offshore wind turbine foundation steel-pipe pile and changeover portion high undersea hydrostatic pressures grouting connection structure is simple, reasonable design,
Advantageously account for the undetectable problem of underwater grouting quality.
Offshore wind turbine foundation steel-pipe pile of the present invention and changeover portion high undersea hydrostatic pressures grouting connection structure, it is characterised in that：Including
The steel-pipe pile goed deep into sea bed body and the transitional pipe segment for being set in steel-pipe pile periphery and exposing sea bed surface, the transitional pipe segment
Sealing ring and lower seal, the transitional pipe segment lower portion are arranged between terminal interior surface and steel-pipe pile outer surface above and below
Inlet pipe is connected above lower seal, the transitional pipe segment top, which is located at below upper sealing ring, connects grout outlet.
Further, the upper annular groove for being equipped with and outwardly protruding below upper sealing ring is located on above-mentioned transitional pipe segment inner surface,
It is located at the lower annular groove for being equipped with and outwardly protruding above lower seal on the transitional pipe segment inner surface.
Further, the connectivity part of above-mentioned inlet pipe and transitional pipe segment is located at the lower groove face of lower annular groove, the grout outlet
It is located at the upper groove surface of upper annular groove with the connectivity part of transitional pipe segment.
Further, above-mentioned upper and lower annular groove has the upper and lower through-hole for leading to transitional pipe segment inner cavity.
Further, above-mentioned lower seal is passive squeezing type sealed ring, and upper sealing ring is active inflation seal ring.
Further, above-mentioned upper sealing ring is annular ring, and section is equipped in outward in annular shape on the outside of annular ring
The bolt or upper sealing ring worn is annular ring, and section is in funnel-form, and in funnel-form annular ring upper edge portion, inner ring is cased with
Ring, annular ring upper edge portion wears to be connected to upper ring wears the bolt connect outward by interior；The lower seal is annular ring, section
In funnel-form, lower toroidal ring is cased in funnel-form annular ring lower edge portion outer ring, annular ring lower edge portion worn with lower toroidal ring be connected to from it is interior toward
The bolt worn outside.
Further, it is socketed two support plates on above-mentioned changeover portion upper and lower part, between two support plates and is located at changeover portion
Side is equipped with shear plate.
Further, above-mentioned shear plate side is equipped with the blower foundation top steel-pipe space frame across two support plates.
The installation method of offshore wind turbine foundation steel-pipe pile of the present invention and changeover portion high undersea hydrostatic pressures grouting connection structure, feature
It is：The connection structure includes the steel-pipe pile goed deep into sea bed body and is set in steel-pipe pile periphery and exposes the mistake on sea bed surface
It crosses pipeline section, sealing ring and lower seal is arranged between the upper and lower terminal interior surface of the transitional pipe segment and steel-pipe pile outer surface,
The transitional pipe segment lower part, which is located above lower seal, connects inlet pipe, and the transitional pipe segment top is located at below upper sealing ring and connects
Connect grout outlet；When installation, steel-pipe pile is squeezed into sea bed in advance, exposes one section above sea bed, upper and lower sealing ring and inlet pipe with
Return pipe is first mounted on the upper and lower end of transition spool piece, and transitional pipe segment is then inserted in steel-pipe pile periphery.
Further, upper to be set with upper and lower support chip in transitional pipe segment upper and lower part in advance, and supporting above and below
Shear plate is connected between piece, in shear plate side connection blower foundation top steel-pipe space frame.Actually top steel-pipe space
Framework, upper and lower support chip, shear plate and transitional pipe segment are that overall processing is good in factory, then pass through transitional pipe segment integral installation
On steel-pipe pile, it is in the milk again after carrying out leveling to superstructure.
Annular space of the present invention between transitional pipe segment and steel-pipe pile uses water sealing structure, and annular space upper end is using master
Dynamic inflatable seal, is equipped with return pipe；The use of annular space lower end is passive extrusion type sealed, is equipped with inlet pipe；On annular space,
Lower end is respectively provided with annular groove.After blower foundation top steel-pipe space frame connect leveling with steel-pipe pile, by being arranged in workboat
Annular space of the high-pressure grouting equipment between transitional pipe segment and steel-pipe pile on oceangoing ship carries out pressure grouting.High-strength grout from into
Slurry pipe enters annular space, and the upper and lower end annular groove of setting ensures that high-strength grout is uniformly closely knit by annular space filling, passes through
Concentration and the quality for the grouting body that the return pipe outlet being arranged more than the water surface is overflowed are observed to differentiate underwater grouting construction quality.
The beneficial effects of the invention are as follows：
1, it is attached, can effectively be passed upper load using underwater grouting between offshore wind turbine foundation and transitional pipe segment
Steel-pipe pile is passed, reliable in quality is easy to operate.
2, it is carried in the passive squash type sealing collar of the active inflatable seal sealing collar of steel-pipe pile upper end and lower end by being arranged
For a dry air-proof condition between transitional pipe segment and steel-pipe pile, offshore wind turbine foundation steel-pipe pile and coupling tube are efficiently solved
Between section the problem of underwater grouting seal construction, it is easy to ensure grouting construction quality.
3, grouting material quality can clearly be observed by return pipe, effectively solves that underwater grouting quality is undetectable asks
Topic.
Description of the drawings：
Fig. 1 is the organigram of the present invention；
Fig. 2 is the portions the A enlarged view of Fig. 1；
Fig. 3 is the portions the B enlarged view of Fig. 2；
Fig. 4 is the sectional view of lower seal；
Fig. 5 is the portions the C enlarged view of Fig. 2；
Fig. 6 is the sectional view of upper sealing ring；
Fig. 7 is the vertical view of upper sealing ring；
Fig. 8 is the enlarged view of the portions the C another kind embodiment of Fig. 2；
Fig. 9 is the sectional view of upper sealing ring another kind embodiment.
Wherein 11 be grouting material, and 12 be seawater.
Specific implementation mode：
Offshore wind turbine foundation steel-pipe pile of the present invention includes going deep into 1 body of sea bed with changeover portion high undersea hydrostatic pressures grouting connection structure
Steel-pipe pile 2 and be set in the periphery of steel-pipe pile 2 and expose the transitional pipe segment 3 on sea bed surface, 3 upper and lower end of the transitional pipe segment
Sealing ring 4 and lower seal 5 are arranged between inner surface and steel-pipe pile outer surface, the transitional pipe segment lower part is located at lower sealing
Circle top connects inlet pipe 6, and the transitional pipe segment top, which is located at below upper sealing ring, connects grout outlet 7.It can be with by return pipe
Clearly observation grouting material quality, effectively solves the problems, such as that underwater grouting quality is undetectable.
Further, in order to realize reasonable design, increase bonding strength, it is located on 3 inner surface of above-mentioned transitional pipe segment upper close
The upper annular groove 301 outwardly protruded is equipped with below seal, be located on the transitional pipe segment inner surface above lower seal be equipped with to
The lower annular groove 302 of outer protrusion.
Further, the connectivity part of above-mentioned inlet pipe and transitional pipe segment is located at the lower groove face of lower annular groove, the grout outlet
It is located at the upper groove surface of upper annular groove with the connectivity part of transitional pipe segment.
Further, above-mentioned upper and lower annular groove has the upper and lower through-hole 13,14 for leading to transitional pipe segment inner cavity.
Further, above-mentioned lower seal 5 is passive squeezing type sealed ring, and above-mentioned lower seal 5 is annular ring, section
In funnel-form, it is cased with lower toroidal ring 502 in 501 outer ring of funnel-form annular ring lower edge portion, annular ring lower edge portion is worn with lower toroidal ring to be connected to
By wearing the bolt connect 503 inside outside.Upper sealing ring 4 is annular ring 401, and section is equipped in annular shape in 401 outside of annular ring
From the interior bolt 403 worn outward, sealing ring is also water-swellable annular ring on this.
Further, firm in order to support, be socketed two support plates 8 on above-mentioned changeover portion upper and lower part, two support plates 8 it
Between and positioned at changeover portion side be equipped with shear plate 9.
Further, 9 side of above-mentioned shear plate is equipped with the oblique steel pipe frame 10 across two support plates.
Transitional pipe segment interior diameter can be 1.1 times of steel-pipe pile outer diameter, and transitional pipe segment length can be the 2 of steel-pipe pile outer diameter
Times, spacing of the upper and lower annular groove apart from transitional pipe segment upper bottom edge, bottom can be 0.2 times of steel-pipe pile outer diameter, upper and lower ring
Shape well width can be 0.2 times of steel-pipe pile outer diameter, and spacing of two support plates 8 apart from transitional pipe segment upper bottom edge, bottom can be with
It it is 0.3 times of steel-pipe pile outer diameter, two support plates 8 can form 15 degree with relative tilt.
Upper sealing ring 4 is annular ring in another embodiment, and section is in cavity ring shape, is set on the inside of cavity ring shape
There is protrusion rib 44, two fins 42 are equipped on the outside of cavity ring shape, two fin 42 is connected to changeover portion by bolt 43
Madial wall.Sealing ring 4 can be with water-swellable on this, or passes through the inflation in hollow cavity.
When offshore wind turbine foundation steel-pipe pile of the present invention is with the grouting connection structure installation of changeover portion high undersea hydrostatic pressures, in advance by steel pipe
Sea bed is squeezed into stake, exposes one section above sea bed, while being set with upper and lower support in transitional pipe segment upper and lower part in advance
Piece, and shear plate is connected between upper and lower support chip, in shear plate side connection blower foundation top steel-pipe space frame, and
And connect inlet pipe and return pipe respectively in transitional pipe segment upper and lower part, and upper and lower ring set is entered in transitional pipe segment,
Lower end；Transitional pipe segment is finally inserted in steel-pipe pile periphery.
Grouting starts post-grouting material and enters in lower annular groove from inlet pipe 6, after lower annular groove is filled up, passes through lower through-hole
14 enter the gap of transitional pipe segment and steel-pipe pile, and since grouting material gravity makes lower seal 5, gradually more sealing is well
Cross the lower part of pipeline section and steel-pipe pile；As transitional pipe segment and grouting material in steel-pipe pile gap are more and more, gradually overflow
Sealing ring 4, also makes swelling under the action of extruding force of sealing ring 4, at the same upper sealing ring 4 can water-swellable, further swelling,
Realize the sealing of transitional pipe segment and steel-pipe pile top, then grouting material will also be overflowed into from upper through-hole 13 in upper annular groove, most
It is flowed out afterwards from grout outlet 7, grouting material quality can clearly be observed by return pipe, effectively solving underwater grouting quality can not examine
The problem of survey.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification should all belong to the covering scope of the present invention.
Claims (2)
1. the installation method of a kind of offshore wind turbine foundation steel-pipe pile and changeover portion high undersea hydrostatic pressures grouting connection structure, feature exist
In：Offshore wind turbine foundation steel-pipe pile includes going deep into the steel-pipe pile in sea bed body and set with changeover portion high undersea hydrostatic pressures grouting connection structure
It is located at steel-pipe pile periphery and exposes the transitional pipe segment on sea bed surface, outside the upper and lower terminal interior surface of transitional pipe segment and steel-pipe pile
Sealing ring and lower seal are arranged between surface, the transitional pipe segment lower part, which is located above lower seal, connects inlet pipe,
The transitional pipe segment top, which is located at below upper sealing ring, connects grout outlet；It is located under upper sealing ring on the transitional pipe segment outer surface
Side is equipped with the upper annular groove outwardly protruded, is equipped with and outwardly protrudes down above lower seal on the transitional pipe segment outer surface
Annular groove；The connectivity part of the inlet pipe and transitional pipe segment is located at the lower groove face of lower annular groove, the grout outlet and transitional pipe segment
Connectivity part be located at the upper groove surface of upper annular groove；The upper annular groove has the upper through-hole for leading to transitional pipe segment inner cavity, under described
Annular groove has the lower through-hole for leading to transitional pipe segment inner cavity；The upper sealing ring is active inflation seal ring；The upper sealing
Circle is annular ring, and section is in cavity ring shape, and protrusion rib is equipped on the inside of cavity ring shape, is set on the outside of cavity ring shape
There are two fins, two fin to be bolted in transitional pipe segment madial wall, upper sealing ring passes through swollen in hollow interacvity air-filling
It is swollen；The lower seal is annular ring, and section is in funnel-form, and lower toroidal ring, ring are cased in funnel-form annular ring lower edge portion outer ring
It wears and is connected to by wearing the bolt connect inside outside with lower toroidal ring in shape circle lower edge portion；It is respectively socketed one on the transitional pipe segment upper and lower part
Fagging, totally two support plate are equipped with shear plate between two support plates and positioned at transitional pipe segment side；The shear plate side is equipped with and wears
Cross the blower foundation top steel-pipe space frame of two support plates；Two support plate relative tilts form 15 degree；When installation, in advance by steel
Pile pile squeezes into sea bed, exposes one section above sea bed, and upper and lower sealing ring and inlet pipe are first mounted on transitional pipe segment with grout outlet
Then transitional pipe segment is inserted in steel-pipe pile periphery by upper and lower end.
2. the installation of offshore wind turbine foundation steel-pipe pile according to claim 1 and changeover portion high undersea hydrostatic pressures grouting connection structure
Method, it is characterised in that：In advance transitional pipe segment top be set with upper backup pad, transitional pipe segment lower part be set with lower supporting plate, and
Shear plate is connected between upper and lower support plate, in shear plate side connection blower foundation top steel-pipe space frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610117176.4A CN105604084B (en) | 2016-03-02 | 2016-03-02 | Offshore wind turbine foundation steel-pipe pile and changeover portion high undersea hydrostatic pressures grouting connection structure and its installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610117176.4A CN105604084B (en) | 2016-03-02 | 2016-03-02 | Offshore wind turbine foundation steel-pipe pile and changeover portion high undersea hydrostatic pressures grouting connection structure and its installation method |
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| Publication Number | Publication Date |
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| CN105604084A CN105604084A (en) | 2016-05-25 |
| CN105604084B true CN105604084B (en) | 2018-11-02 |
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| CN201610117176.4A Active CN105604084B (en) | 2016-03-02 | 2016-03-02 | Offshore wind turbine foundation steel-pipe pile and changeover portion high undersea hydrostatic pressures grouting connection structure and its installation method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086158A (en) * | 2016-11-23 | 2018-05-29 | 重庆市中科大业建筑科技有限公司 | A kind of assembled steel tube constraint reinforced concrete structure grouting locking device |
| CN108677987A (en) * | 2018-07-17 | 2018-10-19 | 华电重工股份有限公司 | A kind of connection structure of single-pile foundation and inner platform |
| CN114892537B (en) * | 2022-07-14 | 2022-11-04 | 中国建筑第六工程局有限公司 | Pier connection construction equipment is assembled in prefabrication under water |
| CN115262564B (en) * | 2022-07-15 | 2023-07-21 | 湖北水总水利水电建设股份有限公司 | Improved deep water grouting construction method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201506979U (en) * | 2009-09-14 | 2010-06-16 | 中国水利水电科学研究院 | Grouting connection structure for pile foundation and jacket leg of offshore wind turbine |
| 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 |
| CN202510718U (en) * | 2012-03-29 | 2012-10-31 | 太原重工股份有限公司 | Inflatable seal ring and fixing device thereof |
| GB201206400D0 (en) * | 2012-04-11 | 2012-05-23 | Offshore Group Newcastle Ltd | Offshore structure installation |
| CN204252141U (en) * | 2014-12-02 | 2015-04-08 | 中国能源建设集团广东省电力设计研究院 | Grouting linkage section device |
| CN104947676B (en) * | 2015-06-29 | 2017-03-22 | 中国能源建设集团广东省电力设计研究院有限公司 | Offshore grouting leakage preventing structure and method |
| CN204825955U (en) * | 2015-08-03 | 2015-12-02 | 浙江华蕴海洋工程技术服务有限公司 | After drive piles construction equipment on marine fan basis |
| CN205530323U (en) * | 2016-03-02 | 2016-08-31 | 福建省水利水电勘测设计研究院 | Marine wind turbine foundation steel -pipe pile and changeover portion be high -pressure grouting connection structure under water |
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Address after: No.158, Dongda Road, Fuzhou, Fujian 350000 Patentee after: Fujian Water Resources and Hydropower Survey, design and Research Institute Co.,Ltd. Address before: No.158, Dongda Road, Gulou District, Fuzhou City, Fujian Province 350000 Patentee before: FUJIAN PROVINCIAL INVESTIGATION DESIGN & Research Institute OF WATER CONSERVANCY AND HYDROPOWER |