CN105604084A - 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 - Google Patents
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 Download PDFInfo
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- CN105604084A CN105604084A CN201610117176.4A CN201610117176A CN105604084A CN 105604084 A CN105604084 A CN 105604084A CN 201610117176 A CN201610117176 A CN 201610117176A CN 105604084 A CN105604084 A CN 105604084A
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- ring
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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 invention relates to an underwater high-pressure grouting connecting structure for an offshore wind turbine foundation steel pipe pile and a transition section and an installation process of the underwater high-pressure grouting connecting structure. The underwater high-pressure grouting connecting structure is characterized by comprising the steel pipe pile going deep into a seabed and the transition pipe section arranged on the periphery of the steel pipe pile in a sleeving mode and exposed out of the surface of the seabed; the portion between the inner surface of the upper end of the transition pipe section and the outer surface of the steel pipe pile and the portion between the inner surface of the lower end of the transition pipe section and the outer surface of the steel pipe pile are sleeved with an upper sealing ring and a lower sealing ring respectively; the lower portion of the transition pipe section is located above the lower sealing ring and connected with a grout inflow pipe, and the upper portion of the transition pipe section is located below the upper sealing ring and connected with a grout outflow pipe. The quality of grouting materials can be clearly observed through a grout return pipe, and the problem that underwater grouting quality cannot be detected is effectively solved.
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 syndeton and mounting process thereof.
Background technology:
Wind energy is as a kind of energy of high-efficiency cleaning, is one of generation mode of the most ripe, the on the largest scale exploitation condition of technology and commercialized development prospect in new energy field. Compared with land wind energy turbine set, the advantage such as marine wind electric field is superior with its wind-resources, environmental protection, saving soil, scale are large, is subject to the great attention of more and more national. But marine engineering is because of construction at sea, operating mode is more severe, have can the engineering time short, difficulty of construction is large, be subject to the features such as the effect of natural conditions such as weather sea situation are huge, higher for the requirement of offshore wind turbine foundation construction.
The general steel pipe pile foundations that adopt of offshore wind turbine foundation, steel-pipe pile can be connected by steel-pipe space frame with blower fan tower barrel more. Between steel-pipe space frame and steel-pipe pile, be connected by changeover portion. Between steel-pipe pile and changeover portion, be generally connected by grouting. Traditional offshore platform pile foundation is in the time carrying out grouting construction, after mostly being top steel-pipe space frame leveling and completing, annular space between changeover portion and steel-pipe pile adopts rubber ring waterstop sealing, stop mud, marine growth and water to enter annular space, to ensure inner annular grouting space and briny environment isolation. This kind of method carried out grout filling by grout pipe to the annular space between changeover portion and steel-pipe pile, and grouting, by conventional grouting equipment pumping slip casting, is applicable to mainly bear the offshore platform of compressive load. Seawater blower fan pile foundation structure is affected by marine hydrology condition, the grouting that need carry out between steel-pipe pile and changeover portion under water most of time is connected, grouting quality of connection is difficult to detect, simultaneously, from offshore platform taking Compressive Bearing Capacity as main operating mode different, offshore wind turbine foundation, taking anti-pulling capacity as main operating mode, in order to ensure normal operation and the structural safety of offshore wind turbine, is had higher requirement to the grouting quality of connection between steel-pipe pile and changeover portion.
Summary of the invention:
The object of the present invention is to provide a kind of offshore wind turbine foundation steel-pipe pile and changeover portion high undersea hydrostatic pressures grouting syndeton and mounting process thereof, this offshore wind turbine foundation steel-pipe pile and changeover portion high undersea hydrostatic pressures grouting syndeton are simple, reasonable in design, are conducive to solve the problem that underwater grouting quality cannot detect.
Offshore wind turbine foundation steel-pipe pile of the present invention and changeover portion high undersea hydrostatic pressures grouting syndeton, it is characterized in that: comprise the steel-pipe pile going deep in sea bed body and be set in steel-pipe pile periphery and expose the transitional pipe segment on sea bed surface, between described transitional pipe segment upper and lower end inner surface and steel-pipe pile outer surface, be arranged with sealing ring and lower seal, described transitional pipe segment bottom is positioned at lower seal top and connects pulp-inlet pipe, and described transitional pipe segment top is positioned at sealing ring below and connects grout outlet.
Further, on above-mentioned transitional pipe segment inner surface, be positioned at sealing ring below and be provided with outwardly upper cannelure, on described transitional pipe segment inner surface, be positioned at lower seal top and be provided with outwardly lower cannelure.
Further, the connectivity part of above-mentioned pulp-inlet pipe and transitional pipe segment is positioned at the lower groove face of lower cannelure, and the connectivity part of described grout outlet and transitional pipe segment is positioned at the upper groove surface of cannelure.
Further, above-mentioned upper and lower cannelure has the upper and lower through hole that leads to transitional pipe segment inner chamber.
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, its cross section is circular, be provided with in annular ring outside the bolt wearing outward from interior, or upper sealing ring is annular ring, its cross section is funnel-form, and ring on having along snare in portion on funnel-form annular ring, has the bolt by interior cross-under outward along portion and upper ring cross-under on annular ring; Described lower seal is annular ring, and its cross section is funnel-form, under funnel-form annular ring, has lower toroidal ring along portion's outer ring sleeve, under annular ring, has along portion and lower toroidal ring cross-under the bolt being worn outward by interior.
Further, above-mentioned changeover portion is socketed two gripper shoes on upper and lower, between two gripper shoes and be positioned at changeover portion sidepiece and be provided with shear plate.
Further, above-mentioned shear plate sidepiece is provided with the blower foundation top steel-pipe space frame through two gripper shoes.
The mounting process of offshore wind turbine foundation steel-pipe pile of the present invention and changeover portion high undersea hydrostatic pressures grouting syndeton, it is characterized in that: described syndeton comprises the steel-pipe pile going deep in sea bed body and is set in steel-pipe pile periphery and exposes the transitional pipe segment on sea bed surface, between described transitional pipe segment upper and lower end inner surface and steel-pipe pile outer surface, be arranged with sealing ring and lower seal, described transitional pipe segment bottom is positioned at lower seal top and connects pulp-inlet pipe, and described transitional pipe segment top is positioned at sealing ring below and connects grout outlet; When installation, in advance steel-pipe pile is squeezed into sea bed, expose one section above sea bed, upper and lower sealing ring and pulp-inlet pipe and return pipe are first arranged on the upper and lower end of transition spool piece, then transitional pipe segment are inserted in to steel-pipe pile peripheral.
Further, on be set with upper and lower support chip in transitional pipe segment upper and lower in advance, and connect shear plate between upper and lower support chip, at top, shear plate sidepiece connecting fan basis steel-pipe space frame. In fact top steel-pipe space frame, upper and lower support chip, shear plate and transitional pipe segment are that entirety processes in factory, then pass through transitional pipe segment integral installation on steel-pipe pile, and superstructure is carried out being in the milk after leveling again.
The annular space of the present invention between transitional pipe segment and steel-pipe pile adopts water sealing structure, and annular space upper end adopts initiatively inflatable seal, is provided with return pipe; Annular space lower end adopts passive extrusion type sealed, is provided with pulp-inlet pipe; Annular space upper and lower end all arranges cannelure. After blower foundation top steel-pipe space frame is connected leveling with steel-pipe pile, by the high-pressure grouting equipment being arranged on work boats and ships, the annular space between transitional pipe segment and steel-pipe pile is carried out to pressure grouting. High-strength grout enters annular space from pulp-inlet pipe, the upper and lower end cannelure arranging guarantees that high-strength grout fills annular space evenly closely knit, is arranged on concentration and the quality that more than water surface return pipe exports the grouting body overflowing differentiates underwater grouting construction quality by observation.
The invention has the beneficial effects as follows:
1, between offshore wind turbine foundation and transitional pipe segment, adopt underwater grouting to be connected, can effectively upper load be passed to steel-pipe pile, reliable in quality, simple to operate.
2, provide a dry air-proof condition between transitional pipe segment and steel-pipe pile by the passive squash type sealing collar of active inflatable seal sealing collar and lower end that is arranged on steel-pipe pile upper end, efficiently solve the problem of underwater grouting seal construction between offshore wind turbine foundation steel-pipe pile and transitional pipe segment, be easy to ensure grouting construction quality.
3, can clearly observe grouting material quality by return pipe, effectively solve the problem that underwater grouting quality cannot detect.
Brief description of the drawings:
Fig. 1 is organigram of the present invention;
Fig. 2 is the A portion zoomed-in view of Fig. 1;
Fig. 3 is the B portion zoomed-in view of Fig. 2;
Fig. 4 is the profile of lower seal;
Fig. 5 is the C portion zoomed-in view of Fig. 2;
Fig. 6 is the profile of upper sealing ring;
Fig. 7 is the top view of upper sealing ring;
Fig. 8 is the zoomed-in view of the another kind of embodiment of C portion of Fig. 2;
Fig. 9 is the profile of the another kind of embodiment of upper sealing ring.
Wherein 11 is grouting material, and 12 is seawater.
Detailed description of the invention:
Offshore wind turbine foundation steel-pipe pile of the present invention and changeover portion high undersea hydrostatic pressures grouting syndeton comprise the steel-pipe pile 2 going deep in sea bed 1 body and are set in steel-pipe pile 2 peripheries and expose the transitional pipe segment 3 on sea bed surface, between described transitional pipe segment 3 upper and lower end inner surface and steel-pipe pile outer surface, be arranged with sealing ring 4 and lower seal 5, described transitional pipe segment bottom is positioned at lower seal top and connects pulp-inlet pipe 6, and described transitional pipe segment top is positioned at sealing ring below and connects grout outlet 7. Can clearly observe grouting material quality by return pipe, effectively solve the problem that underwater grouting quality cannot detect.
Further,, increase bonding strength reasonable in design in order to realize, on above-mentioned transitional pipe segment 3 inner surfaces, be positioned at sealing ring below and be provided with outwardly upper cannelure 301, on described transitional pipe segment inner surface, be positioned at lower seal top and be provided with outwardly lower cannelure 302.
Further, the connectivity part of above-mentioned pulp-inlet pipe and transitional pipe segment is positioned at the lower groove face of lower cannelure, and the connectivity part of described grout outlet and transitional pipe segment is positioned at the upper groove surface of cannelure.
Further, above-mentioned upper and lower cannelure has the upper and lower through hole 13,14 that leads to transitional pipe segment inner chamber.
Further, above-mentioned lower seal 5 is passive squeezing type sealed ring, and above-mentioned lower seal 5 is annular ring, and its cross section is funnel-form, under funnel-form annular ring, there is lower toroidal ring 502 along portion's 501 outer ring sleeves, under annular ring, have from the outer bolt 503 toward interior cross-under along portion and lower toroidal ring cross-under. Upper sealing ring 4 is annular ring 401, and its cross section is circular, is provided with from the interior bolt wearing outward 403 in annular ring 401 outsides, and on this, sealing ring is also water-swellable annular ring.
Further, firm in order to support, on above-mentioned changeover portion upper and lower, be socketed between two gripper shoe 8, two gripper shoes 8 and be positioned at changeover portion sidepiece and be provided with shear plate 9.
Further, above-mentioned shear plate 9 sidepieces are provided with the oblique steel pipe frame 10 through two gripper shoes.
Transitional pipe segment interior diameter can be 1.1 times of steel-pipe pile external diameter, transitional pipe segment length can be 2 times of steel-pipe pile external diameter, upper and lower cannelure can be 0.2 times of steel-pipe pile external diameter apart from the spacing of base, bottom in transitional pipe segment, upper and lower cannelure width can be 0.2 times of steel-pipe pile external diameter, two gripper shoes 8 can be 0.3 times of steel-pipe pile external diameter apart from the spacing of base, bottom in transitional pipe segment, and two gripper shoes 8 can form 15 degree by relative tilt.
In another kind of embodiment, upper sealing ring 4 is annular ring, and its cross section is cavity ring shape, is provided with and protrudes rib 44 in cavity ring shape inner side, is provided with two fins 42 in cavity ring shape outside, and described two fins 42 are connected to changeover portion madial wall by bolt 43. On this, sealing ring 4 can water-swellable, or by inflation in hollow cavity.
When offshore wind turbine foundation steel-pipe pile of the present invention and changeover portion high undersea hydrostatic pressures grouting syndeton are installed, in advance steel-pipe pile is squeezed into sea bed, expose one section above sea bed, be set with upper and lower support chip in transitional pipe segment upper and lower in advance simultaneously, and connect shear plate between upper and lower support chip, at top, shear plate sidepiece connecting fan basis steel-pipe space frame, and connect respectively pulp-inlet pipe and return pipe in transitional pipe segment upper and lower part, and upper and lower ring set is entered to the upper and lower end of transitional pipe segment; Finally transitional pipe segment is inserted in to steel-pipe pile peripheral.
Grouting starts post-grouting material and enters in cannelure from pulp-inlet pipe 6, after lower cannelure is filled up, enter the gap of transitional pipe segment and steel-pipe pile by lower through-hole 14, because grouting material Action of Gravity Field makes lower seal 5 bottom of good seal transitional pipe segment and steel-pipe pile more gradually; Along with grouting material in transitional pipe segment and steel-pipe pile gap is more and more, overflow gradually sealing ring 4, also make sealing ring 4 swelling under the effect of extruding force, go up sealing ring 4 meeting water-swellables, further swelling, realizes the sealing on transitional pipe segment and steel-pipe pile top simultaneously, then grouting material also will overflow in upper cannelure from upper through hole 13, finally flow out from grout outlet 7, can clearly observe grouting material quality by return pipe, effectively solve the problem that underwater grouting quality cannot detect.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. an offshore wind turbine foundation steel-pipe pile and changeover portion high undersea hydrostatic pressures grouting syndeton, it is characterized in that: comprise the steel-pipe pile going deep in sea bed body and be set in steel-pipe pile periphery and expose the transitional pipe segment on sea bed surface, between described transitional pipe segment upper and lower end inner surface and steel-pipe pile outer surface, be arranged with sealing ring and lower seal, described transitional pipe segment bottom is positioned at lower seal top and connects pulp-inlet pipe, and described transitional pipe segment top is positioned at sealing ring below and connects grout outlet.
2. offshore wind turbine foundation steel-pipe pile according to claim 1 and changeover portion high undersea hydrostatic pressures grouting syndeton, it is characterized in that: on described transitional pipe segment inner surface, be positioned at sealing ring below and be provided with outwardly upper cannelure, on described transitional pipe segment inner surface, be positioned at lower seal top and be provided with outwardly lower cannelure.
3. offshore wind turbine foundation steel-pipe pile according to claim 2 and changeover portion high undersea hydrostatic pressures grouting syndeton, it is characterized in that: the connectivity part of described pulp-inlet pipe and transitional pipe segment is positioned at the lower groove face of lower cannelure, the connectivity part of described grout outlet and transitional pipe segment is positioned at the upper groove surface of cannelure.
4. offshore wind turbine foundation steel-pipe pile according to claim 2 and changeover portion high undersea hydrostatic pressures grouting syndeton, is characterized in that: described upper and lower cannelure has the upper and lower through hole that leads to transitional pipe segment inner chamber.
5. offshore wind turbine foundation steel-pipe pile according to claim 1 and changeover portion high undersea hydrostatic pressures grouting syndeton, it is characterized in that: described upper and lower sealing ring is passive squeezing type sealed ring, or lower seal is passive squeezing type sealed ring, upper sealing ring is active inflation seal ring.
6. offshore wind turbine foundation steel-pipe pile according to claim 1 and changeover portion high undersea hydrostatic pressures grouting syndeton, it is characterized in that: described upper sealing ring is annular ring, its cross section is circular, be provided with in annular ring outside the bolt wearing outward from interior, or upper sealing ring is annular ring, its cross section is funnel-form, and ring on having along snare in portion on funnel-form annular ring, has the bolt by interior cross-under outward along portion and upper ring cross-under on annular ring; Described lower seal is annular ring, and its cross section is funnel-form, under funnel-form annular ring, has lower toroidal ring along portion's outer ring sleeve, under annular ring, has from the outer bolt toward interior cross-under along portion and lower toroidal ring cross-under.
7. offshore wind turbine foundation steel-pipe pile according to claim 1 and changeover portion high undersea hydrostatic pressures grouting syndeton, is characterized in that: described changeover portion is socketed two gripper shoes on upper and lower, between two gripper shoes and be positioned at changeover portion sidepiece and be provided with shear plate.
8. offshore wind turbine foundation steel-pipe pile according to claim 1 and changeover portion high undersea hydrostatic pressures grouting syndeton, is characterized in that: described shear plate sidepiece is provided with the blower foundation top steel-pipe space frame through two gripper shoes.
9. the mounting process of an offshore wind turbine foundation steel-pipe pile and changeover portion high undersea hydrostatic pressures grouting syndeton, it is characterized in that: described syndeton comprises the steel-pipe pile going deep in sea bed body and is set in steel-pipe pile periphery and exposes the transitional pipe segment on sea bed surface, between described transitional pipe segment upper and lower end inner surface and steel-pipe pile outer surface, be arranged with sealing ring and lower seal, described transitional pipe segment bottom is positioned at lower seal top and connects pulp-inlet pipe, and described transitional pipe segment top is positioned at sealing ring below and connects grout outlet; When installation, in advance steel-pipe pile is squeezed into sea bed, expose one section above sea bed, upper and lower sealing ring and pulp-inlet pipe and return pipe are first arranged on the upper and lower end of transition spool piece, then transitional pipe segment are inserted in to steel-pipe pile peripheral.
10. the mounting process of offshore wind turbine foundation steel-pipe pile according to claim 1 and changeover portion high undersea hydrostatic pressures grouting syndeton, it is characterized in that: be set with upper and lower support chip in transitional pipe segment upper and lower in advance, and connect shear plate between upper and lower support chip, at top, shear plate sidepiece connecting fan basis 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 true CN105604084A (en) | 2016-05-25 |
| CN105604084B 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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Cited By (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 |
| CN114892537A (en) * | 2022-07-14 | 2022-08-12 | 中国建筑第六工程局有限公司 | Pier connection construction equipment is assembled in prefabrication under water |
| CN115262564A (en) * | 2022-07-15 | 2022-11-01 | 湖北水总水利水电建设股份有限公司 | Improved deepwater grouting construction method |
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| 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 |
| CN114892537A (en) * | 2022-07-14 | 2022-08-12 | 中国建筑第六工程局有限公司 | Pier connection construction equipment is assembled in prefabrication under water |
| CN115262564A (en) * | 2022-07-15 | 2022-11-01 | 湖北水总水利水电建设股份有限公司 | Improved deepwater grouting construction method |
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| Publication number | Publication date |
|---|---|
| CN105604084B (en) | 2018-11-02 |
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