CN207685850U - A kind of ice resistant structure suitable for offshore wind farm low pile cap basis - Google Patents
A kind of ice resistant structure suitable for offshore wind farm low pile cap basis Download PDFInfo
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- CN207685850U CN207685850U CN201721464105.8U CN201721464105U CN207685850U CN 207685850 U CN207685850 U CN 207685850U CN 201721464105 U CN201721464105 U CN 201721464105U CN 207685850 U CN207685850 U CN 207685850U
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Abstract
The utility model discloses a kind of ice resistant structures suitable for offshore wind farm low pile cap basis, ice resistant structure is set on the outside of low pile cap sole plate round platform, including armored concrete panel, pitched work, blotter, hydraulic reclamation process face and the concrete layer that binds, the armored concrete panel angle of inclination on surface layer is 26 °~45 °, it is arranged in a circular formation in the outside of low pile cap sole plate round platform, pitched work between armored concrete panel and sole plate round platform to be filled with block stone, blotter is equipped between armored concrete panel and pitched work, pitched work is located in the hydraulic reclamation process face handled through hydraulic reclamation, at the top of armored concrete panel the concrete that binds has been poured between low pile cap sole plate round platform outer wall.The utility model can reduce the ice load effect under the conditions of different water levels, while adapt to ambient enviroment, economical rationality, easy construction, can extensive use in the offshore wind farm project of ice formation.
Description
Technical field
The utility model is related to offshore wind farm field of engineering technology, especially a kind of to be suitable for offshore wind farm low pile cap base
The ice resistant structure of plinth.
Background technology
In recent years, the wind-power market that will be rapidly developed as one along with the scientific and technological progress of offshore wind farm engineering, ocean.
The built marine wind electric field of China is not located at ice formation at present, therefore does not consider the influence of sea ice effect.In fact, sea ice is to knot
The effect of structure is the important factor in order of offshore wind turbine foundation design and wind field safe operation.The reasonable of sea ice effect is assessed not
Only it is related to the construction investment of ice formation marine wind electric field, is also related to structure safety.Offshore wind turbine foundation is widely used at present
Ice resistant structure mainly uses for reference the cone of the anti-ice in Offshore Platform Engineering, but anti-ice cone is more suitable for the base form of jacket, if
This anti-ice measure is imitated on low pile cap basis, and not only quantities is huge, and the problem in terms of being connect with cushion cap there are cone.Cause
This, anti-ice cone is for offshore wind farm low pile cap basis and is not suitable for, highly desirable a kind of suitable for offshore wind farm low pile cap
The ice resistant structure on basis.
Utility model content
The utility model the technical problem to be solved is that, provide it is a kind of it is simple in structure, advantage of lower cost be applicable in
Ice resistant structure in offshore wind farm low pile cap basis is reduced not with improving the ability of offshore wind farm low pile cap basis anti-ice
Effect with the ice load under the conditions of water level to wind power foundation structure, while adapting to ambient enviroment, economical rationality, easy construction.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：It is low that one kind being suitable for offshore wind farm
The ice resistant structure of Pile-supported stand foundation, ice resistant structure is set on the outside of low pile cap sole plate round platform, including armored concrete face
The armored concrete panel angle of inclination of plate, pitched work, blotter, hydraulic reclamation process face and the concrete layer that binds, surface layer is
It 26 °~45 °, is arranged in a circular formation in the outside of low pile cap sole plate round platform, armored concrete panel and sole plate round platform
Between for pitched work fill with block stone, blotter is equipped between armored concrete panel and pitched work, block stone protects
Slope is located in the hydraulic reclamation process face that is handled through hydraulic reclamation, at the top of armored concrete panel with low pile cap sole plate round platform outer wall
Between poured the concrete that binds.
The presser feet of armored concrete panel is provided at the slope foot of the pitched work.
The armored concrete panel is made of polylith prefabricated reinforced concrete unit, and prefabricated reinforced concrete unit is square
Shape is trapezoidal, length-width ratio 1:1.25, thickness is 300mm~600mm.
The blotter thickness is 150mm~450mm.
The pitched work grade of side slope is 1:1~1:2, pitched work side slope apical side height is less than armored concrete panel
Overhead height.
The utility model has the beneficial effects that：Reduce work of the ice load under the conditions of different water levels to wind power foundation structure
With greatly improving the anti-ice ability on offshore wind farm low pile cap basis, while adapting to ambient enviroment, economical rationality, easy construction.
Description of the drawings
Fig. 1 is the diagrammatic cross-section of the ice resistant structure on the offshore wind farm low pile cap basis of the utility model.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
As shown in Figure 1, the ice resistant structure suitable for offshore wind farm low pile cap basis of the utility model, ice resistant structure are set
It is placed in 6 outside of low pile cap sole plate round platform, including at armored concrete panel 4, pitched work 2, blotter 3, hydraulic reclamation
4 angle of inclination of armored concrete panel of reason face 1 and the concrete layer 5 that binds, surface layer is 26 °~45 °, is arranged in a circular formation in low stake
The outside of cushion cap foundation bottom plate round platform, the block stone shield between armored concrete panel 4 and sole plate round platform to be filled with block stone
Slope 2 is equipped with blotter 3 between armored concrete panel 4 and pitched work 2, and pitched work 2 is located to be blown through what hydraulic reclamation was handled
Fill out in process face 1, poured between the top of armored concrete panel 4 and 6 outer wall of low pile cap sole plate round platform bind it is mixed
Solidifying soil 5.
The presser feet 7 of armored concrete panel is provided at the slope foot of the pitched work 2.
The armored concrete panel 4 is made of polylith prefabricated reinforced concrete unit, and prefabricated reinforced concrete unit is
Rectangle is trapezoidal, length-width ratio 1:1.25, thickness is 300mm~600mm.
3 thickness of the blotter is 150mm~450mm.
2 grade of side slope of the pitched work is 1:1~1:2,2 side slope apical side height of pitched work is less than armored concrete face
4 overhead height of plate.
The construction method of the above-mentioned ice resistant structure suitable for offshore wind farm low pile cap basis, includes the following steps：
(1) according to the bottom plate frustum cone height and diameter on offshore wind farm low pile cap basis, determine ice resistant structure size and
Installation site；
(2) prefabricated reinforced concrete plate thickness, size and arrangement of reinforcement are determined according to ice load size；
(3) in protective range, mud face nearby carries out hydraulic reclamation processing；
(4) to fill block stone throwing within the scope of the bottom plate frustum cone height on offshore wind farm low pile cap basis, fill block stone throwing bank protection slope
Degree control is 1:1~1:2, affluence is reserved at the bank protection slope foot of fill block stone throwing side, to form the presser feet of concrete slab；
(5) it is laid with blotter on pitched work, is compacted using vibro-rammer；
(6) the bottom plate round platform circumference by prefabricated reinforced concrete panel along offshore wind farm low pile cap basis is sequentially arranged,
And in prefabricated reinforced concrete panel and mud face contact position block stone presser feet, form the circle around blower foundation bottom plate round platform week
Fabricated board-like ice resistant structure；
(7) it is poured in prefabricated reinforced concrete panel with being bound with plain concrete in the gap at blower foundation cushion cap edge,
To form integral protection structure.
The operation principle of the utility model is：The bending failure intensity of sea ice is significantly less than compression strength.Based on this reason
It reads, it is contemplated that the pile of ocean structure waterline position is designed with to the form of angle, can thus change the broken of sea ice
Form reduces active force of the sea ice to structure.According to the build on offshore wind farm low pile cap basis, exist within the scope of waterline position
Low pile cap slope section and low pile cap sole plate section, for slope section per se with angle, floor section is rising structure, suffered ice
Load is larger so that this section becomes can greatly reduce ice load effect with angled form.
The utility model is exemplified below：
The first step, offshore wind farm low pile cap sole plate round platform 4 diameter 21m, height 1.2m, the high 1.5m of slope section, tiltedly
Slope section pushes up a diameter of 7m, ramp slope 1:5, basis is located at natural mud face.Cushion cap foundation bottom plate frustum cone height is 1.2m, i.e., uprightly
Duan Gaodu is 1.2m, and ice resistant structure total height is 1.2m, interior diameter 21m.
Second step determines that prefabricated reinforced concrete panel is rectangle, long 2.7m, wide 2.2m, thickness according to ice load size
For 400mm, 18@150HRB400E reinforcing bars are configured；
Third walks, and the protective range determined according to the first step is that blower foundation extends out 3m, in protective range, near mud face
Carry out hydraulic reclamation processing；
4th step uses on the outside of the bottom plate round platform on offshore wind farm low pile cap basis within the scope of the 0.618m of mud face
The processing of throwing 60~100kg block stones, the fill block stone throwing gradient are 1:2, affluence is reserved at fill block stone throwing side slope slope foot, to form coagulation
The presser feet of native panel；
5th step is formed by laying blotter 3 in block stone side slope in the 4th step, is compacted using vibro-rammer, rubble pad
Layer thickness 200mmm；
6th step, the bottom plate round platform circumference by precast concrete facade panel 4 along offshore wind farm low pile cap basis are sequentially arranged,
30 pieces of precast concrete facade panel is needed altogether, and in precast concrete facade panel and mud face contact position block stone presser feet, is formed and surrounded wind
The one fabricated board-like ice resistant structure of circle in machine sole plate round platform week；
7th step is poured in precast concrete facade panel with being bound with C25 plain concretes 5 in the gap at blower foundation cushion cap edge
It builds, to form integral protection structure.
Embodiment described above is merely to illustrate the technological thought and feature of the utility model, and its object is to make ability
Technical staff in domain only cannot limit this practicality it will be appreciated that the content of the utility model and implement according to this with the present embodiment
Novel the scope of the claims, i.e., same changes or modifications made by the revealed spirit of all the utility model, still fall this practicality newly
In the scope of the claims of type.
Claims (5)
1. a kind of ice resistant structure suitable for offshore wind farm low pile cap basis, which is characterized in that ice resistant structure is set to low stake
On the outside of cushion cap foundation bottom plate round platform (6), including at armored concrete panel (4), pitched work (2), blotter (3), hydraulic reclamation
Armored concrete panel (4) angle of inclination of reason face (1) and the concrete layer that binds (5), surface layer is 26 °~45 °, is arranged in a circular formation
It is to be filled with block stone between the outside of low pile cap sole plate round platform, armored concrete panel (4) and sole plate round platform
Pitched work (2), between armored concrete panel (4) and pitched work (2) be equipped with blotter (3), pitched work (2)
In the hydraulic reclamation process face (1) handled through hydraulic reclamation, at armored concrete panel (4) top and low pile cap sole plate round platform
(6) concrete layer that binds (5) has been poured between outer wall.
2. being suitable for the ice resistant structure on offshore wind farm low pile cap basis according to claim 1, which is characterized in that described piece
The presser feet (7) of armored concrete panel is provided at the slope foot of stone bank protection (2).
3. being suitable for the ice resistant structure on offshore wind farm low pile cap basis according to claim 1, which is characterized in that the steel
Reinforced concrete panel (4) is made of polylith prefabricated reinforced concrete unit, and prefabricated reinforced concrete unit is rectangle or trapezoidal, long
Wide ratio is 1:1.25, thickness is 300mm~600mm.
4. being suitable for the ice resistant structure on offshore wind farm low pile cap basis according to claim 1, which is characterized in that described broken
Stone bed course (3) thickness is 150mm~450mm.
5. being suitable for the ice resistant structure on offshore wind farm low pile cap basis according to claim 1, which is characterized in that described piece
Stone bank protection (2) grade of side slope is 1:1~1:2, pitched work (2) side slope apical side height is less than at the top of armored concrete panel (4)
Highly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721464105.8U CN207685850U (en) | 2017-11-06 | 2017-11-06 | A kind of ice resistant structure suitable for offshore wind farm low pile cap basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721464105.8U CN207685850U (en) | 2017-11-06 | 2017-11-06 | A kind of ice resistant structure suitable for offshore wind farm low pile cap basis |
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| Publication Number | Publication Date |
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| CN207685850U true CN207685850U (en) | 2018-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721464105.8U Active CN207685850U (en) | 2017-11-06 | 2017-11-06 | A kind of ice resistant structure suitable for offshore wind farm low pile cap basis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989062A (en) * | 2017-11-06 | 2018-05-04 | 中国电建集团北京勘测设计研究院有限公司 | A kind of ice resistant structure and its construction method suitable for offshore wind farm low pile cap basis |
-
2017
- 2017-11-06 CN CN201721464105.8U patent/CN207685850U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989062A (en) * | 2017-11-06 | 2018-05-04 | 中国电建集团北京勘测设计研究院有限公司 | A kind of ice resistant structure and its construction method suitable for offshore wind farm low pile cap basis |
| CN107989062B (en) * | 2017-11-06 | 2023-10-20 | 中国电建集团北京勘测设计研究院有限公司 | Anti-ice structure suitable for offshore wind power low-pile cap foundation and construction method thereof |
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