CN206646541U - A kind of embedding rock single-pile foundation of batholith sea bed offshore wind turbine - Google Patents
A kind of embedding rock single-pile foundation of batholith sea bed offshore wind turbine Download PDFInfo
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- CN206646541U CN206646541U CN201720319684.0U CN201720319684U CN206646541U CN 206646541 U CN206646541 U CN 206646541U CN 201720319684 U CN201720319684 U CN 201720319684U CN 206646541 U CN206646541 U CN 206646541U
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Abstract
It the utility model is related to a kind of embedding rock single-pile foundation of batholith sea bed offshore wind turbine, including the steel-pipe pile in insertion weak-weathered rock basic unit, the annular groove positioned at steel-pipe pile bottom periphery is offered in batholith, steel-pipe pile lower end internal sleeve is provided with interior casing, leave gap between interior casing and steel-pipe pile inwall, high-strength grouting body is perfused with the gap in annular groove and between interior casing and steel-pipe pile inwall.The embedding rock single-pile foundation of the utility model batholith sea bed offshore wind turbine is reliable and stable, ensures that single-pile foundation can combine closely with the basement rock of surrounding, and be reliably mounted in weak-weathered rock basic unit；The out-of-flatness of the influence and the scar that drills of reduction large diameter borehole aperture and borehole perpendicularity error to single-pile foundation slope causes the problem of stress concentration that steel-pipe pile in-rock segment is locally lain in；Side's amount of in-rock segment backfill concrete can be reduced simultaneously.Efficiently solve the key technique problem that single-pile foundation is applied in batholith sea bed.
Description
Technical field
It the utility model is related to a kind of embedding rock single-pile foundation of batholith sea bed offshore wind turbine.
Background technology
Current generation, the Wind turbines foundation pattern for being used for marine wind electric field both at home and abroad mainly have pile foundation（Including single pile
Basis, jacket basis, tripod basis etc.）, gravity type foundation, four kinds of suction cartridge type basis and floating type basis etc..Wherein,
Single-pile foundation force analysis is clear and definite, and structural shape is simple, and speed of application is fast.Single-pile foundation is applied to 0 by external wind power plant
~ 40m depth of waters marine site, wind power generating set single-machine capacity are up to 8MW；It is soft that domestic wind power plant has also possessed abundant single-pile foundation
Base sea bed construction experiences.According to statistics, the offshore wind turbine foundation in the whole world more than 75% uses single-pile foundation pattern at present.
Because the marine sites such as domestic the Taiwan Straits are batholith sea bed, rock stratum buried depth is shallower at the seat in the plane of part, and steel-pipe pile can
Driving depth is shorter, and steel-pipe pile stake end, which needs to be embedded in weak weathered rockses, could meet the related request of basic constructional design.According to
Domestic batholith sea bed construction experience, under existing construction level and ability, steel-pipe pile can not directly sink to weak weathered rockses, i.e., without
The disposable pile sinking of method is in place, it is necessary to carry out drilling construction.According to marine site geological conditions such as existing geological mapping data, the Taiwan Straits
Change greatly, scar big rise and fall.It there may be that the rock stratum i.e. sides of different rate of decay in same plane to be present be compared with hard rock
Layer, opposite side are the situations compared with incompetent bed, when actual pile sinking and drilling construction, the different resistances or differential settlement of both sides
The perpendicularity of single-pile foundation can be caused to be unsatisfactory for specification and design requirement, uncontrollable factor is relatively more in work progress, drilling
The control difficulty of perpendicularity and aperture accuracy is larger, and the out-of-flatness for the scar that drills is so that steel-pipe pile in-rock segment locally there may be
Problem of stress concentration.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of novel embedding rock single pile of batholith sea bed offshore wind turbine of structure
Basis, ensure single-pile foundation in batholith sea bed using reliable and stable.
The utility model is realized using following scheme：A kind of embedding rock single-pile foundation of batholith sea bed offshore wind turbine, including insertion
Steel-pipe pile in weak-weathered rock basic unit, offers the annular groove positioned at steel-pipe pile bottom periphery in batholith, in steel-pipe pile lower end
Portion is arranged with interior casing, leaves gap between interior casing and steel-pipe pile inwall, in annular groove and interior casing and steel-pipe pile inwall
Between gap in be perfused with high-strength grouting body.
Further, steel-pipe pile upper end is provided with fastener for connection section, and blower fan tower barrel is provided with positioned at fastener for connection section top.
Further, the internal connection position between fastener for connection section and steel-pipe pile is perfused with linkage section high-strength grouting body,
Steel-pipe pile side wall has the bracket to supporting steel pipe linkage section.
Compared with prior art, the utility model has the advantages that：The utility model batholith sea bed offshore wind turbine
Embedding rock single-pile foundation is reliable and stable, ensures that single-pile foundation can combine closely with the basement rock of surrounding, and be reliably mounted in weak wind
Change in batholith layer；Reduce the influence and drilling scar of large diameter borehole aperture and borehole perpendicularity error to single-pile foundation slope
Out-of-flatness cause problem of stress concentration that steel-pipe pile in-rock segment is locally lain in；The side of in-rock segment backfill concrete can be reduced simultaneously
Amount, infrastructure investment is reduced, efficiently solves the key technique problem that single-pile foundation is applied in batholith sea bed.
For the purpose of this utility model, technical scheme and advantage is more clearly understood, specific embodiment will be passed through below
And relevant drawings, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the utility model embodiment organigram；
Fig. 2 is the utility model embodiment work progress step（3）Schematic diagram；
Fig. 3 is the utility model embodiment work progress step（4）Schematic diagram；
Fig. 4 is the utility model embodiment work progress step（5）Schematic diagram；
Fig. 5 is the utility model embodiment work progress step（6）Schematic diagram；
Fig. 6 is the utility model embodiment work progress step（7）Schematic diagram；
Label declaration in figure：Protected in 1- fastener for connection section, 2- linkage section high-strength groutings body, 3- brackets, 4- steel-pipe piles, 5-
Cylinder, 6- high-strength groutings body, 7- annular grooves.
Embodiment
As shown in figure 1, a kind of embedding rock single-pile foundation of batholith sea bed offshore wind turbine, includes inserting the weak-weathered rock basic unit of batholith
In steel-pipe pile 4, the annular groove 7 positioned at the bottom of steel-pipe pile 4 periphery is offered in batholith, steel-pipe pile lower end internal sleeve is provided with interior
Casing 5, leaves gap between interior casing 5 and steel-pipe pile 4 inwall, in annular groove 7 and between interior casing and steel-pipe pile inwall
High-strength grouting body 6 of the presetting period no less than 8h is perfused with gap, high-strength grouting body 6 ensures that steel-pipe pile outer wall and rock mass are tight
Close combination, by increasing casing in thin-walled inside single-pile foundation lower end, and realize the reliable grouting at stake end, ensure single pile
Basis can combine closely with the basement rock of surrounding, and reliably be mounted in weak-weathered rock basic unit；Reduce large diameter borehole aperture
And the out-of-flatness of influence and drill scar of the borehole perpendicularity error to single-pile foundation slope make it that steel-pipe pile in-rock segment is local
Existing problem of stress concentration；Side's amount of in-rock segment backfill concrete can be reduced simultaneously.Single-pile foundation is efficiently solved in batholith sea
The key technique problem applied in bed.
In the present embodiment, the upper end of steel-pipe pile 4 is provided with fastener for connection section 1, and wind is provided with positioned at the top of fastener for connection section 1
Machine tower.
In the present embodiment, the internal connection position between fastener for connection section 1 and steel-pipe pile 4 is perfused with the high-strength filling of linkage section
Slurry 2, the side wall of steel-pipe pile 4 have the bracket 3 to supporting steel pipe linkage section.
The work progress of the embedding rock single-pile foundation of batholith sea bed offshore wind turbine：（1）Carry out steel pipe sunk pile pile drivability point
Analysis, the depth and pile sinking that analysis steel-pipe pile can be squeezed into stop hammer standard；（2）Prefabricated steel-pipe pile, interior casing and fastener for connection section, transport
To appointed place；（3）High-energy hydraulic impact hammer pile sinking is coordinated to certain depth using vibration hammer, as shown in Figure 2；（4）Using
Pile gripper or steady stake platform fix steel-pipe pile, and embedding rock drilling machine is set up at the top of steel-pipe pile, along the drilling downwards of steel-pipe pile centre, bore
Reaming can be started after to steel-pipe pile lower surface to drilling bottom elevation is designed, as shown in Figure 3；（5）After the completion of reaming, take out and bore
Machine, after borehole cleaning reaches requirement, interior casing is transferred to institute's foot of hole, and casing axis and steel in guarantee along steel-pipe pile inwall
Pile tube axis overlaps, as shown in Figure 4；（6）8h high-strength grouting body is no less than to the steel-pipe pile inside perfusion presetting period, it is high-strength
The body that is in the milk enters with being further in the milk behind the space of interior casing along steel-pipe pile inwall, until the space quilt between interior casing and basement rock
Completely fill out, as shown in Figure 5；（7）Beaten before high-strength grouting body initial set, then by steel-pipe pile to foot of hole, sink to steel-pipe pile
In high-strength grouting body, formed and combined closely after the condensation of high-strength grouting body, as shown in Figure 6；（8）Fastener for connection section, adjustment are installed
The flatness of fastener for connection section top flange simultaneously irrigates linkage section high-strength grouting body, as shown in Figure 1.
Above-listed preferred embodiment, the purpose of this utility model, technical scheme and advantage are further described,
It should be understood that and the foregoing is only preferred embodiment of the present utility model, it is all not to limit the utility model
Within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc., this practicality should be included in
Within new protection domain.
Claims (3)
- A kind of 1. embedding rock single-pile foundation of batholith sea bed offshore wind turbine, it is characterised in that：Including the steel in insertion weak-weathered rock basic unit Pile tube, the annular groove positioned at steel-pipe pile bottom periphery is offered in batholith, and steel-pipe pile lower end internal sleeve is provided with interior casing, interior shield Gap is left between cylinder and steel-pipe pile inwall, is perfused with the gap in annular groove and between interior casing and steel-pipe pile inwall High-strength grouting body.
- 2. the embedding rock single-pile foundation of batholith sea bed offshore wind turbine according to claim 1, it is characterised in that：Pacify steel-pipe pile upper end Equipped with fastener for connection section, blower fan tower barrel is installed positioned at fastener for connection section top.
- 3. the embedding rock single-pile foundation of batholith sea bed offshore wind turbine according to claim 2, it is characterised in that：Fastener for connection section with Internal connection position between steel-pipe pile is perfused with linkage section high-strength grouting body, and steel-pipe pile side wall has to be connected to supporting steel pipe The bracket of section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720319684.0U CN206646541U (en) | 2017-03-30 | 2017-03-30 | A kind of embedding rock single-pile foundation of batholith sea bed offshore wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720319684.0U CN206646541U (en) | 2017-03-30 | 2017-03-30 | A kind of embedding rock single-pile foundation of batholith sea bed offshore wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206646541U true CN206646541U (en) | 2017-11-17 |
Family
ID=60280239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720319684.0U Expired - Fee Related CN206646541U (en) | 2017-03-30 | 2017-03-30 | A kind of embedding rock single-pile foundation of batholith sea bed offshore wind turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206646541U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505534A (en) * | 2018-05-24 | 2018-09-07 | 中能电力科技开发有限公司 | A kind of embedding rock single pile construction method of offshore wind turbine base expanding and base expanding formula and system |
| CN109811786A (en) * | 2019-03-26 | 2019-05-28 | 福建永福电力设计股份有限公司 | A kind of offshore wind farm composite base structure of outer and inner tube stake combination |
| CN112031017A (en) * | 2020-09-11 | 2020-12-04 | 中铁十一局集团第一工程有限公司 | Construction method suitable for deep water pile foundation steel casing under bare rock geological condition |
| CN113250238A (en) * | 2021-05-19 | 2021-08-13 | 中交第三航务工程局有限公司 | Rock-socketed construction method of marine ultra-large-diameter single pile based on loosening ring theory |
-
2017
- 2017-03-30 CN CN201720319684.0U patent/CN206646541U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505534A (en) * | 2018-05-24 | 2018-09-07 | 中能电力科技开发有限公司 | A kind of embedding rock single pile construction method of offshore wind turbine base expanding and base expanding formula and system |
| CN109811786A (en) * | 2019-03-26 | 2019-05-28 | 福建永福电力设计股份有限公司 | A kind of offshore wind farm composite base structure of outer and inner tube stake combination |
| CN109811786B (en) * | 2019-03-26 | 2024-03-26 | 福建永福电力设计股份有限公司 | Offshore wind power composite foundation structure with inner steel pipe pile and outer steel pipe pile combined |
| CN112031017A (en) * | 2020-09-11 | 2020-12-04 | 中铁十一局集团第一工程有限公司 | Construction method suitable for deep water pile foundation steel casing under bare rock geological condition |
| CN113250238A (en) * | 2021-05-19 | 2021-08-13 | 中交第三航务工程局有限公司 | Rock-socketed construction method of marine ultra-large-diameter single pile based on loosening ring theory |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171117 Termination date: 20210330 |