CN109680668A - The attachment device and method of offshore boosting station upper chunk and bottom bracing structure - Google Patents
The attachment device and method of offshore boosting station upper chunk and bottom bracing structure Download PDFInfo
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- CN109680668A CN109680668A CN201910171939.7A CN201910171939A CN109680668A CN 109680668 A CN109680668 A CN 109680668A CN 201910171939 A CN201910171939 A CN 201910171939A CN 109680668 A CN109680668 A CN 109680668A
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- frustum
- inclined tube
- upper chunk
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 230000007704 transition Effects 0.000 claims abstract description 21
- 238000010276 construction Methods 0.000 claims abstract description 16
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
Abstract
The invention discloses the attachment devices and method of a kind of offshore boosting station upper chunk and bottom bracing structure, wherein attachment device is formed by connecting by frustum structure and transition section structure；Frustum structure includes round steel pipe and the frustum of a cone for being welded in round steel pipe lower end；Transition section structure includes the upper pipeline section successively welded from the top down, inclined tube section, guiding pipeline section；The lower end of inclined tube section is tightly secured together by butt weld and lower support piling bar；Upper pipeline section is tightly secured together with upper chunk pillar by butt weld.The construction method of attachment device includes preparing multiple steps such as frustum structure, preparation transition section structure, the connection construction for completing booster stations upper chunk and bottom bracing structure.The present invention has many advantages, such as that steel using amount is small, structure is simple, low cost, offshore construction period are short, highly-safe, application with higher and social economic value.
Description
Technical field
The present invention relates to a kind of attachment device and method more particularly to a kind of offshore boosting station upper chunks and lower support
The attachment device and method of structure.
Background technique
With the fast development of offshore wind farm industry, approval, on-stream item are more and more, and China's offshore wind farm gradually marches toward
The new stage of scale construction.Marine wind electric field scale is gradually increased, and offshore distance is also increasingly remoter, and offshore boosting station is as sea
The indispensable facility of upper wind power plant exploitation is used widely.
Offshore boosting station is generally divided into upper chunk and bottom bracing structure, is marine wind electric field boosting, distribution and control
Center.Generally it is disposed with that main transformer, high-low voltage electric power distribution cabinet, GIS, communication relay protection devices etc. are various electrically sets in upper chunk
It is standby, for being boosted by main transformer, being then sent to by high-pressure undersea cable after all offshore wind farm units generate electricity capable of collecting
It is land.And bottom bracing structure is the facility being fixed on entire offshore boosting station superstructure on sea bed, on being subjected to
Outside the total weight of portion's structure, it is also subjected to the effect of the external force such as wind, wave, stream.
The stress condition of offshore boosting station bottom bracing structure and offshore wind turbine foundation are different, and offshore wind turbine foundation is to hold
Carry on a shoulder pole based on horizontal force and moment of flexure, and bottom bracing structure to be to undertake based on huge vertical force, thus support construction need it is reliable
The vertical force of superstructure is transferred to ground；In addition because upper chunk weight is big, bottom bracing structure is also needed enough
Rigidity, to avoid deformation when offshore boosting station operation, vibrate excessive, destruction when avoiding earthquake.
The connection of current offshore boosting station upper chunk and bottom bracing structure, is typically employed in upper chunk bottom of the pillar
Bracket structure is set, lower seal structure is set at the piling bar end of foundation structure, prevents grouting from overflowing.When installation, bracket structure
Lower part is oriented to vertebra cylinder and is inserted into piling bar top cavity, and then bracket ring flat-plate is welded with piling bar, finally will also be in piling bar and ox
Grouting operation is carried out in the cavity that leg structure is formed.
But above-mentioned technical proposal still has following defect:
1) construction is complicated, and the components such as floor of putting more energy into, circular cone plate, ring flat-plate, stiffening plate sealing plate, round tube are more, also need to pre-install
Be in the milk pipeline, and manufacture processing is relatively difficult, and welding is more, and steel using amount is larger；
2) installation technology is complicated, needs to carry out grouting operation to each junction, causes the offshore construction period longer；
3) there are larger gaps with piling bar for upper chunk pillar lower part guiding centrum, it is difficult to realize to dress of feeling at ease, usually deposit
It is unfavorable to structural strength compared with large eccentricity.
Summary of the invention
In order to solve shortcoming present in above-mentioned technology, the present invention provides a kind of offshore boosting station upper chunk with
The attachment device and method of bottom bracing structure.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of offshore boosting station upper chunk with
The attachment device of bottom bracing structure, is formed by connecting by frustum structure and transition section structure；Frustum structure include round steel pipe and
It is welded in the frustum of a cone of round steel pipe lower end；Round steel pipe and the inner wall of upper chunk pillar mutually weld；The frustum of a cone is from the top down half
The semicircle that diameter successively successively decreases is tapered, for playing the guiding role when frustum structure is connected with transition section structure；
Transition section structure includes upper pipeline section, inclined tube section, guiding pipeline section；Inclined tube section is welded in the lower end of pipeline section, and inclined tube
Section and lower support piling bar gradient having the same and caliber specification；The lower end of inclined tube section passes through butt weld and lower support steel
Stake is tightly secured together；
The outer diameter for being oriented to pipeline section is less than the internal diameter of inclined tube section, and the upper end for being oriented to pipeline section is inserted in inclined tube section and and inclined tube
The inner wall of section mutually welds；The lower end of guiding pipeline section is provided with slanting cutting face, for transition section structure to be inserted into lower part
It play the guiding role when supporting piling bar；
The caliber specification of upper pipeline section is identical as upper chunk pillar, and the two is tightly secured together by butt weld.
The tilt angle for being oriented to the cutting face of pipeline section lower end is 45 °.
The outer diameter for being oriented to pipeline section is 6~8mm smaller than the internal diameter of inclined tube section.
The construction method of a kind of offshore boosting station upper chunk and the attachment device of bottom bracing structure, detailed process are as follows:
A, the frustum of a cone is fixedly welded on to the lower end of round steel pipe, completes the preparation of frustum structure；
B, upper pipeline section, inclined tube section, guiding pipeline section are successively welded together from the top down, completes the system of transition section structure
It is standby；
C, after bottom bracing structure Attention problems, the guiding pipeline section in transition section structure is positioned to lower support
In piling bar；Inclined tube section and lower support piling bar are tightly secured together using butt weld；
D, after upper chunk integral installation, upper chunk is sling, the round steel pipe positioning in frustum structure is supreme
In portion's chunking pillar, and weld round steel pipe and the inner wall of upper chunk pillar mutually；
E, the frustum of a cone in frustum structure is made to slowly enter inner tube segment, using butt weld by upper pipeline section and upper group
Block pillar is tightly secured together, and completes the connection construction of booster stations upper chunk and bottom bracing structure.
The present invention has many advantages, such as that steel using amount is small, structure is simple, low cost, offshore construction period are short, highly-safe, has
Higher application and social economic value.
Detailed description of the invention
Fig. 1 is exemplary application map of the invention.
Fig. 2 is overall structure diagram of the invention.
Fig. 3 is the schematic diagram of frustum structure.
Fig. 4 is the schematic diagram of transition section structure.
Fig. 5 is work progress schematic diagram of the invention.
In figure: 1, upper chunk；2, attachment device；3, bottom bracing structure；4, upper chunk pillar；5, frustum structure；
6, transition section structure；7, lower support piling bar；8, round steel pipe；9, the frustum of a cone；10, upper pipeline section；11, inclined tube section；12, guide pipe
Section.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
A kind of attachment device of offshore boosting station upper chunk and bottom bracing structure shown in Fig. 1-2, by frustum structure 5
It is formed by connecting with transition section structure 6；As shown in figure 3, frustum structure 5 includes round steel pipe 8 and the circle for being welded in round steel pipe lower end
Frustum 9；Round steel pipe 8 and the inner wall of upper chunk pillar 4 mutually weld；The frustum of a cone 9 is the semicircle that radius successively successively decreases from the top down
It is tapered, for playing the guiding role when frustum structure 5 is connected with transition section structure 6；
As shown in figure 4, transition section structure 6 includes upper pipeline section 10, inclined tube section 11, guiding pipeline section 12；Inclined tube section 11 is welded in
The lower end of upper pipeline section 10, and inclined tube section 11 and the gradient having the same of lower support piling bar 7 and caliber specification；Under inclined tube section 11
End is tightly secured together by butt weld with lower support piling bar 7；
Upper chunk pillar 4, lower support piling bar 7 are upper chunk, structure intrinsic in bottom bracing structure respectively, and
And inside all has cavity.
The outer diameter for being oriented to pipeline section 12 is less than the internal diameter of inclined tube section 11, and the upper end for being oriented to pipeline section 12 is inserted in inclined tube section 11
And it is mutually welded with the inner wall of inclined tube section 11；The lower end of guiding pipeline section 12 is provided with slanting cutting face, for by changeover portion knot
Structure 6 play the guiding role when being inserted into lower support piling bar 7；
The caliber specification of upper pipeline section 10 is identical as upper chunk pillar 4, and the two is tightly fixed to one by butt weld
It rises.
The tilt angle for being oriented to the cutting face of 12 lower end of pipeline section is 45 °.
The outer diameter for being oriented to pipeline section 12 is 6~8mm smaller than the internal diameter of inclined tube section 11.
The construction method of a kind of offshore boosting station upper chunk and the attachment device of bottom bracing structure, detailed process are as follows:
A, the frustum of a cone 9 is fixedly welded on to the lower end of round steel pipe 8, completes the preparation of frustum structure 5；
B, upper pipeline section 10, inclined tube section 11, guiding pipeline section 12 are successively welded together from the top down, completes transition section structure
6 preparation；
C, after bottom bracing structure Attention problems, by the positioning of guiding pipeline section 12 in transition section structure 6 to lower part
It supports in piling bar 7；Inclined tube section 11 and lower support piling bar 7 are tightly secured together using butt weld；
D, after upper chunk integral installation, upper chunk is sling, extremely by the positioning of round steel pipe 8 in frustum structure 5
In upper chunk pillar 4, and weld round steel pipe 8 and the inner wall of upper chunk pillar 4 mutually；
E, slowly enter the frustum of a cone 9 in frustum structure 5 inside pipeline section 10, using butt weld by upper pipeline section 10 with
Upper chunk pillar 4 is tightly secured together, and completes the connection construction of booster stations upper chunk and bottom bracing structure.
Compared with prior art, the present invention having the advantage that
(1) structure is simple, and steel using amount can reduce by 30% or more；
(2) construction technology is simple, quick for installation, is not necessarily to grouting operation, reduces operating cost, substantially shortens construction week
Phase reduces the requirement of weather window phase, can effectively push project progress；
(3) construction precision is high, and up-down structure is small to positive bias, and maximum eccentric value can reduce by 30 times or more, improves entirety
Safety of structure.
Above embodiment is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made within the scope of technical solution of the present invention, also belong to this hair
Bright protection scope.
Claims (4)
1. a kind of attachment device of offshore boosting station upper chunk and bottom bracing structure, it is characterised in that: the attachment device
It is formed by connecting by frustum structure (5) and transition section structure (6)；The frustum structure (5) includes round steel pipe (8) and is welded in circle
The frustum of a cone (9) of steel pipe lower end；The round steel pipe (8) and the inner wall of upper chunk pillar (4) mutually weld；The frustum of a cone (9)
The semicircle successively to successively decrease for radius from the top down is tapered, from when frustum structure (5) is connected with transition section structure (6)
Guiding role；
The transition section structure (6) includes upper pipeline section (10), inclined tube section (11), guiding pipeline section (12)；Inclined tube section (11) weldering
It is connected to the lower end of pipeline section (10), and inclined tube section (11) and lower support piling bar (7) gradient having the same and caliber specification；Tiltedly
The lower end of pipeline section (11) is tightly secured together by butt weld with lower support piling bar (7)；
The outer diameter of guiding pipeline section (12) is less than the internal diameter of inclined tube section (11), and the upper end for being oriented to pipeline section (12) is inserted in inclined tube
It is mutually welded in section (11) and with the inner wall of inclined tube section (11)；The lower end of guiding pipeline section (12) is provided with slanting cutting face,
For playing the guiding role when transition section structure (6) is inserted into lower support piling bar (7)；
The caliber specification of the upper pipeline section (10) is identical as upper chunk pillar (4), and the two is tightly fastened by butt weld
Together.
2. the attachment device of offshore boosting station upper chunk and bottom bracing structure according to claim 1, feature exist
In: the tilt angle in the cutting face of described guiding pipeline section (12) lower end is 45 °.
3. the attachment device of offshore boosting station upper chunk and bottom bracing structure according to claim 2, feature exist
In: the outer diameter of guiding pipeline section (12) is 6~8mm smaller than the internal diameter of inclined tube section (11).
4. the construction party of a kind of offshore boosting station upper chunk as claimed in claim 3 and the attachment device of bottom bracing structure
Method, it is characterised in that: the detailed process of the method are as follows:
A, the frustum of a cone (9) is fixedly welded on to the lower end of round steel pipe (8), completes the preparation of frustum structure (5)；
B, upper pipeline section (10), inclined tube section (11), guiding pipeline section (12) are successively welded together from the top down, completes changeover portion knot
The preparation of structure (6)；
C, after bottom bracing structure Attention problems, by guiding pipeline section (12) positioning in transition section structure (6) to lower part
It supports in piling bar (7)；Inclined tube section (11) and lower support piling bar (7) are tightly secured together using butt weld；
D, after upper chunk integral installation, upper chunk is sling, extremely by round steel pipe (8) positioning in frustum structure (5)
In upper chunk pillar (4), and weld round steel pipe (8) and the inner wall of upper chunk pillar (4) mutually；
E, the frustum of a cone (9) in frustum structure (5) is made to slowly enter pipeline section (10) internal, using butt weld by upper pipeline section
(10) it is tightly secured together with upper chunk pillar (4), the connection for completing booster stations upper chunk and bottom bracing structure is applied
Work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910171939.7A CN109680668B (en) | 2019-03-07 | 2019-03-07 | Device and method for connecting upper assembly block and lower supporting structure of offshore booster station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910171939.7A CN109680668B (en) | 2019-03-07 | 2019-03-07 | Device and method for connecting upper assembly block and lower supporting structure of offshore booster station |
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| Publication Number | Publication Date |
|---|---|
| CN109680668A true CN109680668A (en) | 2019-04-26 |
| CN109680668B CN109680668B (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910171939.7A Active CN109680668B (en) | 2019-03-07 | 2019-03-07 | Device and method for connecting upper assembly block and lower supporting structure of offshore booster station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111046481A (en) * | 2019-12-27 | 2020-04-21 | 中国能源建设集团广东省电力设计研究院有限公司 | Design method for connection of marine module and pile |
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|---|---|---|---|---|
| CN202492833U (en) * | 2012-03-30 | 2012-10-17 | 广东省电力设计研究院 | Double-platform offshore booster station |
| CN104594317A (en) * | 2015-01-13 | 2015-05-06 | 江苏金风科技有限公司 | Working platform, single pile foundation, offshore working platform and installing method of offshore working platform |
| CN207608917U (en) * | 2017-12-08 | 2018-07-13 | 福建省水利水电勘测设计研究院 | A kind of Prefabricated integral grouped piles cap basis by connection of being in the milk |
| CN208395852U (en) * | 2018-05-29 | 2019-01-18 | 中国电建集团华东勘测设计研究院有限公司 | A kind of pillar and pile connecting structure suitable for taper pile |
| JP2019027037A (en) * | 2017-07-26 | 2019-02-21 | 新日鐵住金株式会社 | Foundation structure, pile head structure of steel pipe pile, and construction method of foundation structure |
| CN209722921U (en) * | 2019-03-07 | 2019-12-03 | 龙源（北京）风电工程设计咨询有限公司 | The attachment device of offshore boosting station upper chunk and bottom bracing structure |
-
2019
- 2019-03-07 CN CN201910171939.7A patent/CN109680668B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202492833U (en) * | 2012-03-30 | 2012-10-17 | 广东省电力设计研究院 | Double-platform offshore booster station |
| CN104594317A (en) * | 2015-01-13 | 2015-05-06 | 江苏金风科技有限公司 | Working platform, single pile foundation, offshore working platform and installing method of offshore working platform |
| JP2019027037A (en) * | 2017-07-26 | 2019-02-21 | 新日鐵住金株式会社 | Foundation structure, pile head structure of steel pipe pile, and construction method of foundation structure |
| CN207608917U (en) * | 2017-12-08 | 2018-07-13 | 福建省水利水电勘测设计研究院 | A kind of Prefabricated integral grouped piles cap basis by connection of being in the milk |
| CN208395852U (en) * | 2018-05-29 | 2019-01-18 | 中国电建集团华东勘测设计研究院有限公司 | A kind of pillar and pile connecting structure suitable for taper pile |
| CN209722921U (en) * | 2019-03-07 | 2019-12-03 | 龙源（北京）风电工程设计咨询有限公司 | The attachment device of offshore boosting station upper chunk and bottom bracing structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111046481A (en) * | 2019-12-27 | 2020-04-21 | 中国能源建设集团广东省电力设计研究院有限公司 | Design method for connection of marine module and pile |
| CN111046481B (en) * | 2019-12-27 | 2024-01-09 | 中国能源建设集团广东省电力设计研究院有限公司 | Design method for connection between marine engineering module and pile |
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| CN109680668B (en) | 2023-12-08 |
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