CN102808419B - Combined pile foundation structure - Google Patents
Combined pile foundation structure Download PDFInfo
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- CN102808419B CN102808419B CN201210272704.5A CN201210272704A CN102808419B CN 102808419 B CN102808419 B CN 102808419B CN 201210272704 A CN201210272704 A CN 201210272704A CN 102808419 B CN102808419 B CN 102808419B
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Abstract
The invention discloses a combined pile foundation structure. A hollow cone structure coaxial to a barrel-shaped foundation is arranged on the top of the barrel-shaped foundation; the centre of the top surface of the hollow cone structure is provided with a first connecting section ring girder structure; the centre of the top cover of the barrel-shaped foundation is provided with a second connecting section ring girder structure; a single-pile foundation is inserted in the first connecting section ring girder structure at the upper part and the second connecting section ring girder structure at the lower part; and the single-pile foundation is respectively fixedly connected with the first connecting section ring girder structure and the second connecting section ring girder structure. According to the combined pile foundation structure, the advantages of clear stress, strong applicability to soil layers, convenience in construction and good horizontal carrying capacity of the barrel-shaped foundation of the single-pile foundation are sufficiently utilized; the integral rigidness, horizontal load resistance, vertical load resistance and bending moment capacity are greatly improved, the bending moment load of a blower load to the foundation is effectively reduced and the horizontal displacement of a wind power structure is reduced, so that the pile length, pile diameter, wall thickness and penetrating depth of the pile foundation are reduced, the cost of materials is greatly reduced and the construction process is simpler.
Description
Technical field
The present invention relates to the foundation structure of building field, specifically, relate to a kind of pile foundation structure.
Background technology
Offshore wind farm structure belongs to that vertical load is relatively little, horizontal loading produce the larger marine tall and slender structure of moment of flexure, resistance to capsizing requires high.
Single-pile foundation structure is common offshore structures base form, particularly at sea wind-powered electricity generation field, is most widely used, its structure is simple, mechanical behavior is clear and definite, for the wind energy conversion system better economy of below 1.5MW with marine field, Europe.But, because single-pile foundation exists resistance to capsizing difference, level to weakness such as displacement are large, along with offshore wind turbine single-machine capacity is increased to 3MW, 5MW or larger, the diameter of single-pile foundation, wall thickness and depth of penetration must be caused sharply to increase, cause marine guidance piling constructional difficulties, construction cost significantly raises.
Three tripods, many pile leaders frame, bucket foundations can disperse load effectively by different modes, improve resistance to capsizing, but all structure and complicated construction technique, require high to sea conditions, cause long construction period, construction cost high.
Summary of the invention
The present invention is to solve above-mentioned technical problem of the prior art, a kind of novel combined piles foundation structure is provided, single-pile foundation is effectively combined with bucket foundation, play its respective advantage, reach the object reducing long, the stake footpath of stake and wall thickness, and then reduce offshore construction cost and material cost.
In order to solve the problems of the technologies described above, the present invention is achieved by following technical scheme:
A kind of combined piles foundation structure, comprise bucket foundation, the hollow round table structure coaxial with described bucket foundation is provided with on described cylinder type basal top, described hollow round table structure end face center is provided with the first linkage section ring beam structure, described bucket foundation top cap central is provided with the second linkage section ring beam structure, the described first linkage section ring beam structure on top and the described second linkage section ring beam structure of bottom are fitted with single-pile foundation, and described single-pile foundation is fixedly connected with described second linkage section ring beam structure with described first linkage section ring beam structure respectively.
The external diameter of described single-pile foundation is less than the internal diameter 0.1 ~ 60cm of described first linkage section ring beam structure and described second linkage section ring beam structure.
Described single-pile foundation respectively with described first linkage section ring beam structure and described second linkage section ring beam structure welding.
Described single-pile foundation is in the milk by shear connector with described first linkage section ring beam structure and described second linkage section ring beam structure respectively and is connected.
Elastic body is respectively arranged with between described single-pile foundation and described first linkage section ring beam structure, between described single-pile foundation and described second linkage section ring beam structure.
The height of described first linkage section ring beam structure and described second linkage section ring beam structure is 1 ~ 3m, and thickness is 0.6 ~ 2m.
The invention has the beneficial effects as follows:
Composite pile foundation of the present invention is new structure single-pile foundation and bucket foundation combined, and the single-pile foundation that its integral rigidity, anti-horizontal loading, anti-vertical load and moment of flexure ability are more independent or bucket foundation all improve a lot.
Combined piles foundation structure takes full advantage of that stressed clear and definite, the soil layer of single-pile foundation is suitable for that ability is strong, easy construction and the advantage such as bucket foundation Its ultimate bearing capacity is good: due to the horizontal restraint of bucket foundation, make submarine surface weak soil place can become the horizontal restraint of single-pile foundation, greatly improve the horizontal bearing capacity of combined piles foundation structure; And bucket foundation is connected with single-pile foundation top, make the build-in point of single-pile foundation in soft foundation moves, change single pile structure stress pattern, effective moment load realizing minimizing fan loads and basis is produced, reduce the horizontal movement of wind-powered electricity generation structure, thus reduce that the stake of pile foundation is long, stake footpath, wall thickness and depth of penetration, material cost is significantly reduced, and construction technology is also more simple.
Accompanying drawing explanation
Fig. 1 is the structural representation of combined piles foundation structure provided by the present invention;
Fig. 2 is the top view of combined piles foundation structure provided by the present invention.
In figure: 1, bucket foundation; 2, single-pile foundation; 3, hollow round table structure; 4, first linkage section ring beam structure; 5, second linkage section ring beam structure; 6, elastic body.
Detailed description of the invention
For summary of the invention of the present invention, feature and effect can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
As depicted in figs. 1 and 2, this embodiment discloses herein a kind of combined piles foundation structure, mainly comprise bucket foundation 1, single-pile foundation 2, hollow round table structure 3, first linkage section ring beam structure 4 and the second linkage section ring beam structure 5.
Bucket foundation 1 is diameter is 20m, is highly 6m, and top cover and sidewall thickness are the concrete structure of 300mm.Bucket foundation 1 is fixedly installed hollow round table structure 3 on top, and hollow round table structure 3 is coaxial with bucket foundation 1.Hollow round table structure 3 is top external diameters is 4m, and bottom external diameter is 10m, and wall thickness is 600mm, is highly the concrete structure of 15m.
It is thickness is 1m that hollow round table structure 3 end face center is provided with the first linkage section ring beam structure 4, first linkage section ring beam structure 4, and be highly 2m, internal diameter is the concrete structure of 3.2m.It is thickness is equally 1m that bucket foundation top cap central is provided with the second linkage section ring beam structure 5, second linkage section ring beam structure 5, and be highly 2m, internal diameter is the concrete structure of 3.2m.
Single-pile foundation 2 is diameters is 3m, and wall thickness is 30mm, the long steel cylinder structure for 30m.
Single-pile foundation 2 and bucket foundation 1 are combined as a whole by hollow round table structure 3, first linkage section ring beam structure 4 and the second linkage section ring beam structure 5, and single-pile foundation 2 inserts among the first linkage section ring beam structure 4 and the second linkage section ring beam structure 5.The external diameter of single-pile foundation 2 is generally less than the first linkage section ring beam structure 4 and second linkage section ring beam structure 5 internal diameter 0.1 ~ 60cm.Fixed form between single-pile foundation 2 and the first linkage section ring beam structure 4, second linkage section ring beam structure 5 can be rigidly connected, and as arranged, shear connector grouting connects, welding; Also can be that elasticity connects, as filled the gap between single-pile foundation 2 and the first linkage section ring beam structure 4, between single-pile foundation 2 and the second linkage section ring beam structure 5 with the elastic bodys such as rubber pad 6.
The construction method of the combined piles foundation structure of the present embodiment is as follows:
The first prefabricated bucket foundation 1 being provided with hollow round table structure 3, and with the first linkage section ring beam structure 4 and the second linkage section ring beam structure 5; Then construction and installation bucket foundation 1; Single-pile foundation 2 is squeezed into again by the first linkage section ring beam structure 4 and the second linkage section ring beam structure 5; Finally by the first linkage section ring beam structure 4 with between single-pile foundation 2, the second linkage section ring beam structure 5 and the gap between single-pile foundation 2 be by be rigidly connected or elasticity is connected and processes.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make the concrete conversion of a lot of form, these all belong within protection scope of the present invention.
Claims (3)
1. a combined piles foundation structure, it is characterized in that, comprise bucket foundation, the hollow round table structure coaxial with described bucket foundation is provided with on described cylinder type basal top, described hollow round table structure end face center is provided with the first linkage section ring beam structure, described bucket foundation top cap central is provided with the second linkage section ring beam structure, and the described first linkage section ring beam structure on top and the described second linkage section ring beam structure of bottom are fitted with single-pile foundation;
Described single-pile foundation respectively with described first linkage section ring beam structure and described second linkage section ring beam structure welding, being in the milk by shear connector is connected or elasticity connects.
2. a kind of combined piles foundation structure according to claim 1, is characterized in that, the external diameter of described single-pile foundation is less than the internal diameter 0.1 ~ 60cm of described first linkage section ring beam structure and described second linkage section ring beam structure.
3. a kind of combined piles foundation structure according to claim 1, is characterized in that, the height of described first linkage section ring beam structure and described second linkage section ring beam structure is 1 ~ 3m, and thickness is 0.6 ~ 2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210272704.5A CN102808419B (en) | 2012-08-01 | 2012-08-01 | Combined pile foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210272704.5A CN102808419B (en) | 2012-08-01 | 2012-08-01 | Combined pile foundation structure |
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| Publication Number | Publication Date |
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| CN102808419A CN102808419A (en) | 2012-12-05 |
| CN102808419B true CN102808419B (en) | 2015-01-14 |
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| CN201210272704.5A Active CN102808419B (en) | 2012-08-01 | 2012-08-01 | Combined pile foundation structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930313A (en) * | 2017-04-19 | 2017-07-07 | 合肥学院 | A kind of coastal waters wind energy project stake bucket combination foundation and its construction method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225314A (en) * | 2013-05-11 | 2013-07-31 | 天津大学 | Offshore wind power foundation consisting of single pile and cylindrical foundations |
| CN108442401A (en) * | 2018-05-23 | 2018-08-24 | 中国科学院力学研究所 | A kind of combined type sea upper fan foundation structure |
| CN111062068B (en) * | 2019-11-02 | 2022-03-25 | 中铁二院工程集团有限责任公司 | Method for calculating side width of pile foundation tray structure next to existing ballastless track roadbed |
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| KR100719300B1 (en) * | 2006-04-12 | 2007-05-18 | 한국해양연구원 | Foundation construction structure of bucket pile and method thereof |
| CN1995557A (en) * | 2006-10-27 | 2007-07-11 | 上海海事大学 | Stake-barrel base |
| CN102251534A (en) * | 2011-04-19 | 2011-11-23 | 上海海事大学 | Ocean engineering foundation adopting pile-barrel foundation structure |
| CN102444140A (en) * | 2011-10-21 | 2012-05-09 | 天津大学 | Combination base of wind power generator set foundation on sea |
| CN202273241U (en) * | 2011-10-26 | 2012-06-13 | 浙江大学 | Suction bucket- pile composite type base |
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2012
- 2012-08-01 CN CN201210272704.5A patent/CN102808419B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2589514Y (en) * | 2002-12-02 | 2003-12-03 | 天津大学 | Vertical load-supporting pile having buoyancy pontoon for pile foundation wharf |
| KR100719300B1 (en) * | 2006-04-12 | 2007-05-18 | 한국해양연구원 | Foundation construction structure of bucket pile and method thereof |
| CN1995557A (en) * | 2006-10-27 | 2007-07-11 | 上海海事大学 | Stake-barrel base |
| CN102251534A (en) * | 2011-04-19 | 2011-11-23 | 上海海事大学 | Ocean engineering foundation adopting pile-barrel foundation structure |
| CN102444140A (en) * | 2011-10-21 | 2012-05-09 | 天津大学 | Combination base of wind power generator set foundation on sea |
| CN202273241U (en) * | 2011-10-26 | 2012-06-13 | 浙江大学 | Suction bucket- pile composite type base |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930313A (en) * | 2017-04-19 | 2017-07-07 | 合肥学院 | A kind of coastal waters wind energy project stake bucket combination foundation and its construction method |
| CN106930313B (en) * | 2017-04-19 | 2023-10-13 | 合肥学院 | Offshore wind power engineering pile barrel combined foundation and construction method thereof |
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| Publication number | Publication date |
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| CN102808419A (en) | 2012-12-05 |
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