CN206503157U - The embedding rock mixing pile foundation of offshore wind farm - Google Patents
The embedding rock mixing pile foundation of offshore wind farm Download PDFInfo
- Publication number
- CN206503157U CN206503157U CN201720188630.5U CN201720188630U CN206503157U CN 206503157 U CN206503157 U CN 206503157U CN 201720188630 U CN201720188630 U CN 201720188630U CN 206503157 U CN206503157 U CN 206503157U
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- China
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- pile
- concrete
- linkage section
- wind farm
- offshore wind
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- 239000011435 rock Substances 0.000 title claims abstract description 23
- 239000004567 concrete Substances 0.000 claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 238000011065 in-situ storage Methods 0.000 claims abstract description 7
- 231100000241 scar Toxicity 0.000 claims 2
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 abstract description 5
- 230000005684 electric field Effects 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model is a kind of embedding rock mixing pile foundation of offshore wind farm, it is single-pile foundation, it includes top steel-pipe pile and bottom bored concrete pile, the two is connected by concrete linkage section, concrete linkage section stretches into not less than 2 times stake footpaths of distance of steel-pipe pile bottom, pile top thickened area is also included in the bottom of concrete linkage section, the steel reinforcement cage of bored concrete pile is stretched into from armored concrete linkage section bottom up, bored concrete pile is poured together with armored concrete linkage section, steel-pipe pile is placed on bedrock surface during installation, bored concrete pile is cast-in-situ bored pile, it is placed under bedrock surface, not less than 1.5 times stake footpaths of depth of cast-in-situ bored pile insertion bedrock surface, it is C40 armored concrete in armored concrete, the utility model is suitable for the offshore wind farm pile foundation compared with shallow overburden, reasonable stress is reliable, resistance to plucking, anti- Its ultimate bearing capacity is strong etc., each marine wind electric field can be promoted the use of.
Description
Technical field
The utility model is related to wind power generation field, particularly a kind of offshore wind farm pile foundation being applied to compared with shallow overburden
Plinth.
Background technology
At sea in wind field design, offshore wind turbine foundation design is key problem.In ocean engineering, applied to improve
Work efficiency rate, reduces cost, uses steel-pipe pile more.In some marine sites（Such as the Bohai and Yellow Seas marine site of China）, engineering geological condition ratio
More special, coating buried depth is shallower, is basement rock under coating, because traditional steel-pipe pile can not embedding rock, it is difficult to meet resistance to plucking, anti-
Horizontal bearing capacity requirement.
Utility model content
The technical problem that the utility model is solved is providing a kind of embedding rock of offshore wind farm being applied to compared with shallow overburden
Mix pile foundation.
The technological means that the utility model is used is as follows.
A kind of embedding rock mixing pile foundation of offshore wind farm, it is single-pile foundation, and it includes top steel-pipe pile and bottom bored concrete pile,
The two is connected by armored concrete linkage section.
The armored concrete linkage section stretches into not less than 2 times stake footpaths of distance of the bottom of steel-pipe pile 1.
The steel reinforcement cage of the bored concrete pile is stretched into from armored concrete linkage section bottom up, the bored concrete pile and reinforced concrete
Native linkage section is poured together.
The steel-pipe pile is placed on bedrock surface, and bored concrete pile is cast-in-situ bored pile, is placed under bedrock surface.
Not less than 1.5 times stake footpaths of depth of the cast-in-situ bored pile insertion bedrock surface.
It is C40 armored concrete in the steel concrete linkage section.
Pile top thickened area is also included in the bottom of armored concrete linkage section.
Having the beneficial effect that produced by the utility model.
1st, the embedding rock mixing pile foundation of offshore wind farm of the present utility model is combined by top steel-pipe pile and bottom bored concrete pile,
Top steel-pipe pile has the advantage that offshore construction is convenient, cost is relatively low, and bottom bored concrete pile can preferably solve the problems, such as embedding rock.
2nd, bored concrete pile and armored concrete linkage section pour mode and the interspersed mode of steel reinforcement cage, it can be ensured that steel-pipe pile with
The validity that both bored concrete piles are connected.
3rd, suitable for the offshore wind farm pile foundation form compared with shallow overburden, reasonable stress is reliable, resistance to plucking, anti-horizontal bearing energy
Power is strong etc., can promote the use of each marine wind electric field.
Brief description of the drawings
Fig. 1 is the structural representation that the embedding rock of offshore wind farm of the present utility model mixes pile foundation.
Fig. 2 is the structural representation of reinforced concrete linkage section in the utility model.
Embodiment
The utility model protects a kind of reasonable stress reliable, and the strong embedding rock of offshore wind farm of resistance to plucking, anti-Its ultimate bearing capacity is mixed
Close pile foundation.
Structure as shown in Figure 1, the bored concrete pile 2 of steel-pipe pile 1 and bottom of the pile foundation comprising top passes through in the middle of the two
Armored concrete linkage section 3 is connected.The stake footpath of steel-pipe pile 1 is D.
The top of the armored concrete linkage section 3 is stretched into the bottom of steel-pipe pile 2, and what it was stretched into is not less than 2 times apart from H1
Stake footpath D.Pile top thickened area 31 is also included in the bottom of concrete linkage section 3.
The bottom of armored concrete linkage section 3 is poured together with the bored concrete pile 2 of lower section, structure as shown in Figure 2, bored concrete pile 2
Steel reinforcement cage 21 stretched into from the bottom up of armored concrete linkage section 3.
The construction process of the embedding rock mixing pile foundation of offshore wind farm of the present utility model is as follows：Upper steel is carried out by pile driving barge
Pile tube pile sinking, sets up Pile platform, determines embedding rock initial surface, using mud gas-lift reverses circulation, and pore-forming, which reaches, to be set
Borehole cleaning is carried out after meter depth, makes and steel reinforcement cage is installed, in secondary clear qualified rear concrete perfusion, if pile measurement is qualified, i.e.,
Complete work progress.
Following parameter is by taking certain marine wind electric field single-pile foundation as an example, more than bedrock surface, and steel-pipe pile stake footpath D is 6.5m, greatly
Part wall thickness is 65mm, and only in the range of pile top 2m, wall thickness increases to 70mm.Meanwhile, steel-pipe pile is in pile top 13m（I.e. 2 times stakes
Footpath）In the range of be embedding rock linkage section, be C40 armored concrete in linkage section.Below bedrock surface, single-pile foundation is drill-pouring
Stake, stake footpath is 5m, and cast-in-situ bored pile insertion basement rock is not less than 7.5m（I.e. 1.5 times stake footpaths）, specific embedding rock length is according to resistance to plucking, anti-
Horizontal bearing capacity computation is determined.
Claims (7)
1. a kind of embedding rock mixing pile foundation of offshore wind farm, it is characterised in that it is single-pile foundation, and it includes top steel-pipe pile（1）
With bottom bored concrete pile（2）, the two passes through armored concrete linkage section（3）It is connected.
2. the embedding rock mixing pile foundation of offshore wind farm as claimed in claim 1, it is characterised in that the armored concrete linkage section
（3）Stretch into the distance of the bottom of steel-pipe pile 1（H1）Not less than 2 times stake footpaths（D）.
3. the embedding rock mixing pile foundation of offshore wind farm as claimed in claim 1, it is characterised in that the bored concrete pile（2）Reinforcing bar
Cage（21）From armored concrete linkage section（3）Bottom up is stretched into, the bored concrete pile（2）With armored concrete linkage section（3）One
Rise and pour.
4. the embedding rock mixing pile foundation of offshore wind farm as claimed in claim 1, it is characterised in that the steel-pipe pile（1）It is placed in base
On scar, bored concrete pile（2）For cast-in-situ bored pile, it is placed under bedrock surface.
5. the embedding rock mixing pile foundation of offshore wind farm as claimed in claim 4, it is characterised in that the cast-in-situ bored pile is embedded in base
The depth of scar（H2）Not less than 1.5 times stake footpaths（D）.
6. the embedding rock mixing pile foundation of offshore wind farm as claimed in claim 1, it is characterised in that in the steel concrete linkage section
For C40 armored concrete.
7. the embedding rock mixing pile foundation of offshore wind farm as described in claim 1 to 6 is any, it is characterised in that in armored concrete
Linkage section（3）Bottom also include pile top thickened area（31）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188630.5U CN206503157U (en) | 2017-02-28 | 2017-02-28 | The embedding rock mixing pile foundation of offshore wind farm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188630.5U CN206503157U (en) | 2017-02-28 | 2017-02-28 | The embedding rock mixing pile foundation of offshore wind farm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206503157U true CN206503157U (en) | 2017-09-19 |
Family
ID=59841677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720188630.5U Active CN206503157U (en) | 2017-02-28 | 2017-02-28 | The embedding rock mixing pile foundation of offshore wind farm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206503157U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411907A (en) * | 2018-05-18 | 2018-08-17 | 上海勘测设计研究院有限公司 | The self-balance test embedded rock pile and its construction method and test method of arrangement two-stage load box |
| CN108505531A (en) * | 2017-02-28 | 2018-09-07 | 中国电力工程顾问集团华北电力设计院有限公司 | The embedding rock of offshore wind farm mixes pile foundation |
| CN109930624A (en) * | 2019-04-08 | 2019-06-25 | 龙源（北京）风电工程设计咨询有限公司 | A kind of embedding petrographic province blower foundation of offshore wind farm and construction method |
-
2017
- 2017-02-28 CN CN201720188630.5U patent/CN206503157U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505531A (en) * | 2017-02-28 | 2018-09-07 | 中国电力工程顾问集团华北电力设计院有限公司 | The embedding rock of offshore wind farm mixes pile foundation |
| CN108411907A (en) * | 2018-05-18 | 2018-08-17 | 上海勘测设计研究院有限公司 | The self-balance test embedded rock pile and its construction method and test method of arrangement two-stage load box |
| CN108411907B (en) * | 2018-05-18 | 2024-07-30 | 上海勘测设计研究院有限公司 | Self-balancing method test rock-socketed pile for arranging two-stage load boxes, construction method and test method thereof |
| CN109930624A (en) * | 2019-04-08 | 2019-06-25 | 龙源（北京）风电工程设计咨询有限公司 | A kind of embedding petrographic province blower foundation of offshore wind farm and construction method |
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