CN204825955U - After drive piles construction equipment on marine fan basis - Google Patents
After drive piles construction equipment on marine fan basis Download PDFInfo
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- CN204825955U CN204825955U CN201520591549.2U CN201520591549U CN204825955U CN 204825955 U CN204825955 U CN 204825955U CN 201520591549 U CN201520591549 U CN 201520591549U CN 204825955 U CN204825955 U CN 204825955U
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- offshore wind
- turbine foundation
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Abstract
The utility model provides an after drive piles construction equipment on marine fan basis belongs to marine fan foundation construction technical field, and this construction equipment includes marine fan basis, pile protection pipe and sleeve, and the pile protection is effective in the installation piling bar, and the pile protection pipe sets up in the bottom on marine fan basis, can dismantle on telescopic lower extreme and the stake sheathed tube and be connected. The utility model provides an after drive piles construction equipment on marine fan basis through the sleeve that increases interim construction usefulness, guarantees that the leveling on marine fan basis and grout connection work need not personnel underwater operation, adopt the dry process operation, safe and reliable completely, reform transform into dry process grout with traditional wet process grout, constructor manages platform real time monitoring at the pile protection, and construction precision easily controls, and, be convenient for carry on the sea and inlay the rock construction.
Description
Technical field
The utility model relates to offshore wind turbine foundation technical field of construction, in particular to a kind of construction equipment of rear piling offshore wind turbine foundation.
Background technology
The now construction of offshore wind turbine foundation is at present divided into first piling and rear piling two kinds of constructure scheme.Steel pipe pile is generally first squeezed into seabed by mount scheme of first driving piles, then the spud leg of offshore wind turbine foundation is inserted piling bar, then carries out grouting connection operation; Rear piling offshore wind turbine foundation is a kind of traditional offshore wind turbine foundation scheme, it devises some pipe casings of pitching pile construction in blower foundation bottom at sea, for the offshore wind turbine foundation of such band pipe casing, conventional construction method is: first offshore wind turbine foundation is placed in seabed, then from pipe casing, insert piling bar to projected depth, then carry out leveling under water and grouting.In the program, leveling under water and underwater grouting need water operation under underwater robot or diver, and difficulty is larger; Especially most of marine sites mud of China is thicker, and seabed is muddy, leveling under water and underwater grouting difficulty larger.This traditional construction scheme is for marine rock geology simultaneously, and Pile is very difficult under water, must by FA equipment.
Utility model content
The utility model provides a kind of construction equipment of rear piling offshore wind turbine foundation, is intended to improve the problems referred to above, can not need leveling under water and underwater grouting work.
The utility model is achieved in that
A kind of construction equipment of rear piling offshore wind turbine foundation, comprise offshore wind turbine foundation, pipe casing and sleeve, described pipe casing is for installing piling bar, and described pipe casing is arranged at the bottom of described offshore wind turbine foundation, and the lower end of described sleeve and the upper end of described pipe casing removably connect.
Further, described pipe casing comprises pipe casing grout compartment vertical tube, pipe casing inner platform and pipe casing upper sleeve portion, the lower end of described pipe casing upper sleeve portion is connected by described pipe casing inner platform with the upper end of described pipe casing grout compartment vertical tube, and the upper end of described pipe casing upper sleeve portion and the lower end of described sleeve removably connect.By arranging pipe casing inner platform, be convenient to carry out dry method grouting connection work.
Further, also comprise the levelling device for carrying out leveling to described offshore wind turbine foundation, described levelling device is arranged in described pipe casing;
Described levelling device comprises jack and leveling gripper shoe, and described leveling gripper shoe is arranged at the top of described piling bar, and described jack is arranged between described leveling gripper shoe and described pipe casing inner platform.
By arranging levelling device, enabling constructor carry out dry method leveling operation easily, ensureing that the leveling of offshore wind turbine foundation is without the need to personnel's underwater operation, safe and reliable.
Further, the top of described pipe casing is connected by connecting bottom board with described offshore wind turbine foundation, the bottom of described pipe casing connects by being connected transverse slat with described offshore wind turbine foundation, and the lateral wall of described pipe casing connects by being connected riser with described offshore wind turbine foundation.
Adopt connecting bottom board, connect transverse slat and connect riser, pipe casing is very firmly fixedly connected with described offshore wind turbine foundation.
Further, the lower end of described pipe casing is concordant with described connecting bottom board or protrude from described connecting bottom board.The lower end of pipe casing is concordant with connecting bottom board or protrude from connecting bottom board, exceeds part and can be placed in sea bed or insert seabed sand layer, thus promote the sealing performance of pipe casing and sleeve.
Further, the upper end of described sleeve is provided with temporary platform, and described temporary platform is connected with described offshore wind turbine foundation.
Temporary platform is the walkway between the platform of offshore wind turbine foundation and sleeve, is also the braced structures of stabilizer sleeve, and can be used as the arrangement platform of embedding rock or other construction equipments.
The beneficial effects of the utility model are: the construction equipment of the rear piling offshore wind turbine foundation that the utility model is obtained by above-mentioned design, during use, first sleeve is lifted the pipe casing place to offshore wind turbine foundation, and sleeve is connected with pipe casing, sleeved for band offshore wind turbine foundation is placed into sea bed face, pipe casing lower end steel pipe is made to be placed on sea bed or to insert sea bed earth, piling bar is placed in pipe casing, put pile hammer to drive piles, until to specified design elevation in driven pile sleeve pipe, extract seawater and silt out, after offshore wind turbine foundation leveling, pipe casing and piling bar are welded to connect, grouting connects or both implement simultaneously, remove sleeve again, namely construction is completed.
The construction equipment of the rear piling offshore wind turbine foundation that the utility model provides, by increasing the sleeve of temporary construction, ensure that the leveling of offshore wind turbine foundation and piling bar and offshore wind turbine foundation connection work are without the need to personnel's underwater operation, adopt dry operation completely, safe and reliable.Traditional wet work is transformed into dry operation, and constructor monitors in real time at pipe casing platform, and construction precision is easy to control.Further, embedding rock construction dry operation can be facilitated.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the construction equipment of the rear piling offshore wind turbine foundation that the utility model first embodiment provides;
Fig. 2 is the structural representation after the construction equipment dismounting sleeve of the rear piling offshore wind turbine foundation that the utility model first embodiment provides;
Fig. 3 is the partial enlarged drawing at the construction equipment A place in fig. 2 of the rear piling offshore wind turbine foundation that the utility model first embodiment provides;
Fig. 4 is the construction equipment sleeve of rear piling offshore wind turbine foundation that provides of the utility model first embodiment and the syndeton schematic diagram of pipe casing;
Fig. 5 is the partial enlarged drawing at the construction equipment B place in the diagram of the rear piling offshore wind turbine foundation that the utility model first embodiment provides.
Figure acceptance of the bid note is respectively:
Offshore wind turbine foundation 1;
Pipe casing 2; Connecting bottom board 21; Connect riser 22; Connect transverse slat 23; Pipe casing grout compartment vertical tube 24; Pipe casing inner platform 25; Pipe casing upper sleeve portion 26;
Sleeve 3; Temporary platform 31;
Piling bar 4; Leveling gripper shoe 41;
Jack 5;
Pile follower pipe 6.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.Therefore, below to the detailed description of the embodiment of the present utility model provided in the accompanying drawings and the claimed scope of the present utility model of not intended to be limiting, but selected embodiment of the present utility model is only represented.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
First embodiment
Refer to Fig. 1 and Fig. 2, the construction equipment of the rear piling offshore wind turbine foundation that the present embodiment provides, comprise offshore wind turbine foundation 1, pipe casing 2 and sleeve 3, pipe casing 2 is for installing piling bar 4, pipe casing 2 is arranged at the bottom of offshore wind turbine foundation 1, and the lower end of sleeve 3 and the upper end of pipe casing 2 are removably connected by bolt.
In the present embodiment, offshore wind turbine foundation 1 can be marine fan jacket foundation, offshore wind turbine three pile foundations or many pile foundations etc. under water.
In addition, pipe casing 2 is existing structure, is a kind of structure for pitching pile be connected with offshore wind turbine foundation 1.Further, the position that pipe casing 2 is installed on offshore wind turbine foundation 1 is prior art, is normally installed on the bottom of offshore wind turbine foundation 1.The quantity of pipe casing 2 is not particularly limited, and can be multiple, in the present embodiment, pipe casing 2 be four.
The construction equipment of the rear piling offshore wind turbine foundation that the present embodiment provides, during use, first sleeve 3 is lifted pipe casing 2 place to offshore wind turbine foundation 1, and sleeve 3 is connected with pipe casing 2, offshore wind turbine foundation 1 with sleeve 3 is placed into sea bed face, pipe casing 2 lower end steel pipe is made to be placed on sea bed or to insert sea bed earth, piling bar 4 is placed in pipe casing 2, put pile hammer to drive piles, until to specified design elevation in driven pile sleeve pipe 2, extract seawater and silt out, after offshore wind turbine foundation 1 leveling, pipe casing 2 and piling bar 4 are welded to connect, grouting connects or both implement simultaneously, remove sleeve 3 again, construction can be completed.
The construction equipment of the rear piling offshore wind turbine foundation that the present embodiment provides, by increasing the sleeve 3 of temporary construction, ensure that leveling and the piling bar 4 of offshore wind turbine foundation 1 are connected work without the need to personnel's underwater operation with offshore wind turbine foundation 1, adopt dry operation completely, safe and reliable.Traditional wet work is transformed into dry operation, and constructor monitors in real time at the platform of pipe casing 2, and construction precision is easy to control.Further, embedding rock construction dry operation can be facilitated.This sleeve 3 is interim frock, dismountable and can Reusability after foundation construction completes.
On the basis of the technical scheme of the construction equipment of the rear piling offshore wind turbine foundation provided at above-described embodiment, further:
Refer to Fig. 2 and Fig. 3, the construction equipment of this rear piling offshore wind turbine foundation also comprises pipe casing grout compartment vertical tube 24, pipe casing inner platform 25 and pipe casing upper sleeve portion 26, the lower end of pipe casing upper sleeve portion 26 is connected by pipe casing inner platform 25 with the upper end of pipe casing grout compartment vertical tube 24, and the upper end of pipe casing upper sleeve portion 26 and the lower end of sleeve 3 removably connect.By arranging pipe casing inner platform 25, be convenient to carry out dry method grouting connection work.
In addition, pipe casing 2 bottom sealing, mainly contains two kinds of measures: a) the inwall bottom position pre-installation rubber water-proof circle of pipe casing 2, and piling bar 4 is squeezed into rear extruding rubber water-proof circle and formed waterstop sealing; B) pipe casing 2 bottom steel tubing portions inserts seabed earth sealing.
In the present embodiment, the inwall lower end of pipe casing 2 is provided with rubber water-proof circle.The inwall lower end position pre-installation rubber water-proof circle of pipe casing 2, piling bar 4 is squeezed into rear extruding rubber water-proof circle and is formed waterstop sealing.
Refer to Fig. 3, the top of pipe casing 2 is connected by connecting bottom board 21 with offshore wind turbine foundation 1, the bottom of pipe casing 2 connects by being connected transverse slat 23 with offshore wind turbine foundation 1, the lateral wall of pipe casing 2 connects by being connected riser 22 with offshore wind turbine foundation 1, and the lower end of pipe casing 2 is concordant with connecting bottom board 21 or protrude from connecting bottom board 21.
Adopt connecting bottom board 21, connect transverse slat 23 and connect riser 22, pipe casing 2 can be very firmly fixedly connected with offshore wind turbine foundation 1.The lower end of pipe casing 2 is concordant with connecting bottom board 21 or protrude from connecting bottom board 21, exceeds part and can be placed in sea bed or insert seabed sand layer, thus promote the sealing performance of pipe casing 2 and sleeve 3.
In addition, refer to Fig. 4 and Fig. 5, the construction equipment of this rear piling offshore wind turbine foundation also comprises the levelling device for carrying out leveling to offshore wind turbine foundation 1, and levelling device is arranged in pipe casing 2.Levelling device comprises jack 5 and leveling gripper shoe 41, and leveling gripper shoe 41 is arranged at the top of piling bar 4, and jack 5 is arranged between leveling gripper shoe 41 and pipe casing inner platform 25.
The basic ideas of leveling are: jack 5 is placed on pipe casing inner platform 25, by jacking piling bar 4 to pressing down offshore wind turbine foundation 1 leveling.Piling bar 4 top welding leveling gripper shoe 41, jack 5 bottom is placed on pipe casing grout compartment vertical tube 24 with on pipe casing inner platform 25, jack 5 apical support piling bar 4 leveling gripper shoe 41.After leveling, pipe casing 2 and piling bar 4 first can be welded to connect, then be in the milk.
By arranging levelling device, enabling constructor carry out dry method leveling operation easily, ensureing that the leveling of offshore wind turbine foundation 1 is without the need to personnel's underwater operation, safe and reliable.
Refer to Fig. 1, in the present embodiment, the upper end of sleeve 3 is provided with temporary platform 31, and temporary platform 31 is connected with offshore wind turbine foundation 1.Temporary platform 31 is the walkway between the platform of offshore wind turbine foundation 1 and sleeve 3, is also the braced structures of stabilizer sleeve 3, and can be used as the arrangement platform of embedding rock or other construction equipments.
, can install cat ladder, constructability personnel pass in and out sleeve 3 in addition, in the present embodiment, in sleeve 3 according to actual needs, to construct.Connection between sleeve 3 and offshore wind turbine foundation 1 according to actual needs, also can increase level connection joint and diagonal brace.
After offshore wind turbine foundation 1 is placed in seabed, piling bar 4 inserts pipe casing 2, and by pile follower pipe 6, piling bar 4 is driven into design altitude, and close to pipe casing 2 upper end.
Refer to Fig. 1 ~ Fig. 5, the concrete steps of the construction method of the rear piling offshore wind turbine foundation that the present embodiment provides are as follows:
1), after offshore wind turbine foundation 1 machines, the rubber water-proof circle of pipe casing 2 bottom is fixed on pipe casing 2;
2) sleeve 3 is lifted before offshore lifting pipe casing 2 place to offshore wind turbine foundation 1, and by Bolt Connection;
3) temporary platform 31 on sleeve 3 is fixedly connected with the platform of offshore wind turbine foundation 1 respectively;
4) offshore wind turbine foundation 1 with sleeve 3 is placed into sea bed face, makes pipe casing 2 bottom steel pipe be placed in seabed or insert sea bed earth;
5) piling bar 4 is placed in pipe casing 2 inner;
6) put pile hammer and start piling, when piling bar 4 top is close to offshore wind turbine foundation 1 the top, the preceding paragraph pile follower pipe 6 can be connect, continue to squeeze into, until to specified design elevation in driven pile sleeve pipe 2.Piling terminates, if due to design deviation, bearing stratum got to by piling bar 4, and redundance piling bar 4 cannot reach design altitude, can carry out cutting stake;
7) after operation of driving piles completes, with the seawater of pipe casing 2 and silt in extraction sleeve 3;
8) constructor is from sleeve 3 to pipe casing inner platform 25;
9) constructor jack 5 is placed on piling bar 4 top welding leveling gripper shoe 41 and pipe casing inner platform 25 between, leveling work is carried out to offshore wind turbine foundation 1;
10) after leveling completes, as required, first piling bar 4 end and pipe casing 2 can be welded and fixed, then with piling bar 4, grouting be carried out to pipe casing 2 and be connected;
11), after offshore wind turbine foundation 1 installation, constructor removes the bolt between sleeve 3 and pipe casing 2, and constructor climbs up sleeve 3;
12) sleeve 3 is removed.
13) according to actual conditions and designing requirement, if need embedding rock, embedding rock operation is carried out.
Refer to Fig. 1 ~ Fig. 5, the advantage of the construction equipment of the rear piling offshore wind turbine foundation that the present embodiment provides is:
1) by increasing the sleeve 3 of temporary construction, dry operation after the draining of employing sleeve 3, the leveling of guarantee offshore wind turbine foundation 1 and grouting connection work, without the need to personnel's underwater operation, adopt dry operation completely, safe and reliable.
2) on the basis of traditional pipe casing 2, Optimizing Reconstruction, devises the lower end steel pipe inserting earth sealing and the upper end formation be connected with sleeve 3.
3) connection of the platform of sleeve 3 upper end and offshore wind turbine foundation 1, adds syndeton temporary platform 31, is braced structures, is passage again and can be used as the arrangement platform of other construction equipments.
4) grouting of traditional wet method is transformed into dry method grouting, constructor monitors in real time at pipe casing inner platform 25, and construction precision is easy to control.
5) connection of piling bar 4 and pipe casing 2, can adopt grouting and can increase welding, fully ensure that intensity and the safety of connection.
6) water-stopping structure that is connected with pipe casing 2 of sleeve 3, substantially increases hermetic seal performance.
7) this device can realize embedding rock construction dry operation.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the equipment of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. to drive piles after one kind the construction equipment of offshore wind turbine foundation, it is characterized in that, comprise offshore wind turbine foundation, pipe casing and sleeve, described pipe casing is for installing piling bar, described pipe casing is arranged at the bottom of described offshore wind turbine foundation, and the lower end of described sleeve and the upper end of described pipe casing removably connect.
2. the construction equipment of rear piling offshore wind turbine foundation according to claim 1, it is characterized in that, described pipe casing comprises pipe casing grout compartment vertical tube, pipe casing inner platform and pipe casing upper sleeve portion, the lower end of described pipe casing upper sleeve portion is connected by described pipe casing inner platform with the upper end of described pipe casing grout compartment vertical tube, and the upper end of described pipe casing upper sleeve portion and the lower end of described sleeve removably connect.
3. the construction equipment of rear piling offshore wind turbine foundation according to claim 2, is characterized in that, also comprise the levelling device for carrying out leveling to described offshore wind turbine foundation, described levelling device is arranged in described pipe casing;
Described levelling device comprises jack and leveling gripper shoe, and described leveling gripper shoe is arranged at the top of described piling bar, and described jack is arranged between described leveling gripper shoe and described pipe casing inner platform.
4. the construction equipment of rear piling offshore wind turbine foundation according to claim 1, it is characterized in that, the top of described pipe casing is connected by connecting bottom board with described offshore wind turbine foundation, the bottom of described pipe casing connects by being connected transverse slat with described offshore wind turbine foundation, and the lateral wall of described pipe casing connects by being connected riser with described offshore wind turbine foundation.
5. the construction equipment of rear piling offshore wind turbine foundation according to claim 4, is characterized in that, the lower end of described pipe casing is concordant with described connecting bottom board or protrude from described connecting bottom board.
6. the construction equipment of rear piling offshore wind turbine foundation according to claim 1, it is characterized in that, the upper end of described sleeve is provided with temporary platform, and described temporary platform is connected with described offshore wind turbine foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520591549.2U CN204825955U (en) | 2015-08-03 | 2015-08-03 | After drive piles construction equipment on marine fan basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520591549.2U CN204825955U (en) | 2015-08-03 | 2015-08-03 | After drive piles construction equipment on marine fan basis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204825955U true CN204825955U (en) | 2015-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520591549.2U Withdrawn - After Issue CN204825955U (en) | 2015-08-03 | 2015-08-03 | After drive piles construction equipment on marine fan basis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204825955U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155569A (en) * | 2015-08-03 | 2015-12-16 | 浙江华蕴海洋工程技术服务有限公司 | Construction device and method for offshore wind turbine foundation with piling performed later |
| CN105604084A (en) * | 2016-03-02 | 2016-05-25 | 福建省水利水电勘测设计研究院 | Underwater high-pressure grouting connecting structure for offshore wind turbine foundation steel pipe pile and transition section and installation process of underwater high-pressure grouting connecting structure |
| CN108222049A (en) * | 2018-01-02 | 2018-06-29 | 天津大学 | A kind of offshore wind farm combined type single-pile foundation and its construction method |
-
2015
- 2015-08-03 CN CN201520591549.2U patent/CN204825955U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155569A (en) * | 2015-08-03 | 2015-12-16 | 浙江华蕴海洋工程技术服务有限公司 | Construction device and method for offshore wind turbine foundation with piling performed later |
| WO2017020697A1 (en) * | 2015-08-03 | 2017-02-09 | 广东明阳风电产业集团有限公司 | Construction device and method for offshore wind turbine foundation with piling performed later |
| CN105155569B (en) * | 2015-08-03 | 2017-05-31 | 浙江华蕴海洋工程技术服务有限公司 | The constructing device and construction method of piling offshore wind turbine foundation after a kind of |
| US10253475B2 (en) | 2015-08-03 | 2019-04-09 | Ming Yang Smart Energy Group., Ltd. | Construction device and method for offshore wind turbine foundation with piling performed later |
| CN105604084A (en) * | 2016-03-02 | 2016-05-25 | 福建省水利水电勘测设计研究院 | Underwater high-pressure grouting connecting structure for offshore wind turbine foundation steel pipe pile and transition section and installation process of underwater high-pressure grouting connecting structure |
| CN108222049A (en) * | 2018-01-02 | 2018-06-29 | 天津大学 | A kind of offshore wind farm combined type single-pile foundation and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20170531 |