CN111456075A - Pile barrel composite truss type offshore wind turbine foundation and construction process thereof - Google Patents

Pile barrel composite truss type offshore wind turbine foundation and construction process thereof Download PDF

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Publication number
CN111456075A
CN111456075A CN202010162101.4A CN202010162101A CN111456075A CN 111456075 A CN111456075 A CN 111456075A CN 202010162101 A CN202010162101 A CN 202010162101A CN 111456075 A CN111456075 A CN 111456075A
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CN
China
Prior art keywords
suction
pile
foundation
wind turbine
barrel
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Pending
Application number
CN202010162101.4A
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Chinese (zh)
Inventor
朱嵘华
王立忠
王复明
梁旭
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Zhejiang University ZJU
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Zhejiang University ZJU
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Filing date
Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CN202010162101.4A priority Critical patent/CN111456075A/en
Publication of CN111456075A publication Critical patent/CN111456075A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/42Foundations for poles, masts or chimneys
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/44Foundations for machines, engines or ordnance
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/52Submerged foundations, i.e. submerged in open water

Abstract

The invention discloses a pile cylinder composite truss type offshore wind turbine foundation which comprises the following components in parts by weight: the suction tube is connected with the bottom of the truss structure, and an embedded sleeve for installing the pile foundation is arranged on the suction tube. The construction process of the offshore wind turbine foundation comprises the following steps: the truss type structure and the suction cylinder connected with the bottom of the truss type structure are hung to the seabed, the suction cylinder penetrates into the seabed after contacting the seabed until the bottom of the embedded sleeve is submerged with soil, and a closed space is formed in the suction cylinder; pumping water to the suction barrel to enable the suction barrel to sink to a designated elevation, shutting down the suction pump, and sealing a pump interface through a cover plate or grouting measures to finish the installation of the suction barrel; after the suction tube is installed, the pile foundation is inserted into the embedded sleeve, and after pile sinking is finished, gap grouting is carried out between the pile foundation and the embedded sleeve. The structure of the offshore wind turbine foundation and the construction method thereof have higher stability and bearing capacity, can resist extreme loads such as typhoon and the like, and have strong seabed adaptability.

Description

Pile barrel composite truss type offshore wind turbine foundation and construction process thereof
Technical Field
The invention relates to the field of offshore wind power engineering, in particular to a pile barrel composite truss type offshore wind turbine foundation and a construction process thereof.
Background
Offshore wind power as a renewable energy source has been vigorously researched and popularized in various countries in the world in recent years. The negative pressure cylinder (suction cylinder) is a large-diameter cylindrical thin-wall structure, is used as an anchoring form and a foundation form, is widely applied to an ocean structure mooring system, an ocean foundation platform and an ocean fan foundation, and has the advantages of simplicity and convenience in assembly, high construction efficiency, lower cost and the like.
For example, chinese patent publication No. CN109914460A discloses a novel suction tube type wind power foundation with a combined structure suitable for shallow sea, and relates to the technical field of wind power generation. The system comprises a central pile, a suction barrel, a barrel wall, a top cover, a bin distribution plate, steel stiffening ribs, a tower barrel connecting section and studs. The suction barrel is formed by enclosing a barrel wall and a top cover, and three sub-bin plates are arranged in the barrel to form a suction barrel cavity. The section of thick bamboo wall, top cap and branch storehouse board all adopt double-deck steel sheet concrete, and the steel sheet contacts one side welding toggle pin with the concrete and is connected in order strengthening. The central pile is made of solid concrete-filled steel tube or hollow steel tube, and the pile top and the pile side are respectively and firmly connected with the top cover and the warehouse separating plate. The upper part of the top cover is provided with a tower drum connecting section, steel stiffening ribs are arranged along the annular direction, and the steel stiffening ribs are tightly connected with the top cover and the tower drum connecting section. For example, chinese patent publication No. CN109853609A discloses an offshore wind power combination foundation. The offshore wind power combined foundation comprises a jacket, a steel pipe pile, a suction tube and a steel cable. The utility model discloses a marine wind power combination basis is by the jacket, the steel-pipe pile, a suction section of thick bamboo and steel cable constitute, jacket and a suction section of thick bamboo pass through additional strengthening and connect, the lateral rigidity on increase combination basis, the jacket bears vertical load, fan horizontal load and wave flow power that the jacket bore pass through additional strengthening and transmit for a suction section of thick bamboo and undertake jointly, because in suction section of thick bamboo dispersion embedding top layer soil, it is big with top layer soil foundation area of contact, the horizontal force of resistance that can full play surface soil, improve the horizontal bearing capacity of foundation pile, improve basic antidumping ability, reduce the drawing power that the jacket principal leg bore, thereby can reduce jacket principal leg distance and member cross-section, reduce the basis cost and the construction degree of difficulty. The suction cylinder can be sunk by adopting negative pressure, and the construction difficulty is small. The back pile is located suction section of thick bamboo center, and structural soil body stability is better during the pile.
In the field of offshore wind power, three or more suction cylinders are generally connected to a truss type steel frame to form a suction cylinder type truss fan foundation. The foundation is limited by seabed geological conditions of an installation sea area, and is suitable for being installed in an area with a relatively stable geological structure, a plurality of cylinders must be ensured to sink simultaneously in the installation process, the suction cylinder foundation needs to be controlled to sink to the designed depth in the sinking process, and the structure verticality and the whole superstructure levelness need to be accurately controlled in the sinking process. And along with the increase of the depth of water, soil plug uplift or even buckling is easily formed in the cylinder, so that the suction cylinder cannot completely sink to the designed depth at the same time, and the structural levelness is difficult to ensure, which is also a difficulty in the use process of the truss-type foundation of the current suction cylinder.
Disclosure of Invention
The invention aims to provide a pile-barrel composite truss type offshore wind turbine foundation and a construction process thereof, which can ensure that the structure of the offshore wind turbine foundation has higher stability and bearing capacity, can resist extreme loads such as typhoon and the like, and has strong seabed adaptability.
The invention provides the following technical scheme:
the utility model provides a compound truss-like offshore wind turbine basis of a pile section of thick bamboo, compound truss-like offshore wind turbine basis of a pile section of thick bamboo includes truss-like structure, a suction section of thick bamboo and pile foundation, a suction section of thick bamboo is connected with truss-like structure's bottom, be equipped with the embedding sleeve of installation pile foundation on the suction section of thick bamboo.
In the pile-barrel composite truss type offshore wind turbine foundation provided by the invention: the insert sleeve is located inside, at the edge of or outside the suction tube. In addition, the suction tube may be provided with a plurality of insert sleeves. The two ends of the embedded sleeve are opened, and the position, the length and the cylinder diameter of the embedded sleeve are determined according to actual conditions. The whole strength of the structure is considered in the embedding position of the sleeve, the suction tube and the like are convenient to install, the sleeve is generally far away from the pile leg as far as possible, the downward extending length of the sleeve is considered from the angle of ensuring the sealing performance of the suction tube, and the lower end of the sleeve is generally higher than the lower end of the suction tube. The length of the upper end of the sleeve is convenient for the pile hammer to carry out piling construction.
The truss structure comprises a jacket structure used for bearing a fan and a tower drum, the jacket comprises a plurality of jacket legs, the jacket legs correspond to the suction drums one to one, and the jacket legs are connected to the top ends of the suction drums through reinforcing members.
The plurality of jacket legs are three legs, four pile legs or a multi-pile and multi-leg type of bottom connection of the jacket structure. I.e. the number of legs of the conduit frame is at least three. The reinforcing member is generally a reinforcing rib made of steel plate, H-section steel, or T-section steel.
Preferably, in the pile-barrel composite truss type offshore wind turbine foundation provided by the invention: (1) an embedded sleeve for installing a pile foundation is arranged at the eccentric position of the suction barrel, and the conduit frame leg is connected to the central position of the suction barrel, namely, the pile foundation is positioned at the eccentric position of the suction barrel; the advantage of this setting: the construction is convenient; the disadvantages are as follows: the eccentricity of the pile foundation causes uneven stress on the foundation, and the stress at the joint of the pile foundation and the suction barrel is large. (2) The central point of a suction section of thick bamboo puts and is equipped with the embedding sleeve of installation pile foundation, the pipe frame leg is connected to the eccentric position of a suction section of thick bamboo, and the bearing performance of pile section of thick bamboo composite truss-like offshore wind turbine foundation can be optimized in above-mentioned setting. (3) The positions of the pile foundation and the pipe frame leg are not centered, and the actual positions of the pipe frame leg and the embedded sleeve (pile inserting) are selected through calculation and analysis according to the actual scheme requirements.
Preferably, a cured grouting layer is arranged between the embedded sleeve and the pile foundation. The pile foundation can be a steel pile or other pile foundations made of appropriate materials and types. The connection of embedding sleeve and pile foundation can be strengthened through the grout blanket and fixed.
Preferably, a reinforcing component for supporting the suction tube and connecting the suction tube with the embedded sleeve is arranged in the suction tube. The reinforcing member is generally a reinforcing rib made of steel plate, H-section steel, or T-section steel.
The top end of the suction barrel is provided with a pump interface for connecting a suction pump or a suction pipeline. The design of the pump interface can refer to the design of a common suction barrel structure, and the position of the interface can be determined from the angles of ensuring the integral strength of the barrel body, facilitating the pumping operation of the suction barrel and the like.
In the pile barrel composite truss type offshore wind turbine foundation provided by the invention, the embedded sleeve for installing the pile foundation is arranged on the suction barrel, so that the bearing capacity and the foundation rigidity of the suction barrel can be improved, and the long-term deformation resistance and the natural vibration frequency of the suction barrel are optimized.
Preferably, the pile-barrel composite truss type offshore wind turbine foundation comprises a sealing cover movably connected with the top of the embedded sleeve. The sealing cover is provided with an opening and a valve.
In the pile-barrel composite truss type offshore wind turbine foundation provided by the invention: the sealing cover is arranged at the top of the embedded sleeve, so that the internal space of the bucket body can be kept closed in the process of pumping water and sinking; the barrel sealing cover can be provided with an opening and a valve, and the sealing performance of the barrel body can be controlled under the condition that the sealing cover is closed.
Preferably, the embedded sleeve and the sealing cover can be connected through a bolt, pretightening force is applied to ensure sealing performance, and the sealing cover can be fixed through any connection modes such as a buckle and a hydraulic device in practical implementation. The upper part of the sealing cover is provided with a lifting lug for lifting the sealing cover away after the suction barrel sinks. In engineering implementation, lifting lugs or connecting devices can be arranged at other allowable positions for removing the sealing cover. The sealing cover can also be fixed on the top of the embedded sleeve through the rotating shaft and is lifted after the suction tube is completely inserted without being lifted.
The invention provides a construction process of the pile barrel composite truss type offshore wind turbine foundation, which comprises the following steps:
(1) enabling a sealing cover embedded into the top of the sleeve or a valve on the sealing cover to be in an open state, hanging the truss structure and a suction tube connected with the bottom of the truss structure to the seabed, penetrating the truss structure into the seabed under the action of gravity after contacting the seabed, then closing the sealing cover embedded into the top of the sleeve or the valve on the sealing cover, and forming a closed space in the suction tube;
(2) carrying out water pumping operation on the suction barrel through a suction pump or a suction pipeline to enable the suction barrel to sink to a specified elevation, stopping the suction pump after the specified elevation is reached, and sealing a pump connector through a cover plate or grouting measures to finish the installation of the suction barrel;
(3) after the suction section of thick bamboo installation is accomplished, open the sealed lid in sleeve top, insert the embedding sleeve with the pile foundation, pile sinking completion back is in pile foundation and embedding sleeve clearance grout.
In the step (2), an underwater suction pump can be adopted, the underwater suction pump is connected with the pump interface to perform water pumping operation, one or more suction pumps can be arranged at the top end of each suction barrel according to actual conditions, and a centralized control system is adopted to control the pressure of the suction pumps so as to ensure that the barrels of the suction barrels sink uniformly. An above water suction system may also be used to connect the suction line to the pump interface 6 at the top of each suction canister to operate to sink the canister to a specified elevation.
In the step (2), when the suction cylinder does not sink to a designated elevation or does not meet the structural level requirement after the suction pump is pumped by the suction pump or the suction pipeline, the pile driving hammer is used for beating the embedded sleeve to complete the sinking and leveling operation.
In step (3), the connection strength between the pile foundation and the embedded sleeve can be ensured by grouting the gap between the pile foundation and the embedded sleeve. The bearing capacity of the whole offshore wind turbine foundation can be increased due to the arrangement of the pile foundation.
During the use process of the pile-tube composite truss type offshore wind turbine foundation, the external load borne by the structure is resisted mainly by the friction force of the outer side of the suction tube, the outer side of the embedded sleeve, the outer side of the steel pile and the soil body and the pressure difference between the inner side and the outer side of the suction tube. The offshore wind turbine foundation and the construction process provided by the invention can effectively ensure that the suction cylinder sinks to the seabed according to the designed depth; once the construction cannot be carried out to the designed depth through self weight and negative pressure due to the existence of a geological stronger or impervious stratum, the whole structure can be constructed to the designed depth through the action of the external force of the construction hammer on the embedded sleeve structure by means of the embedded sleeve; in order to improve the bearing capacity and the long-term stability of the structure, the pile foundation can be inserted into the embedded casing, and the pile foundation and the embedded casing are connected through grouting. The pile-barrel composite truss type offshore wind turbine foundation provided by the invention can ensure that the foundation structure has higher stability and bearing capacity, can resist extreme loads such as typhoons and the like, has the advantages of strong seabed adaptability, simplicity and convenience in installation, low cost, reusability and the like, and has wide application prospect.
Compared with the traditional suction barrel foundation and pile foundation structure, the pile barrel composite truss type offshore wind turbine foundation provided by the invention has the following advantages:
1) the adaptability of the seabed is strong: the method can be used for sandy soil geology, sandy soil and clay multilayer geology, and geology with thicker soft soil covering layer and weaker bearing capacity during construction;
2) the basic reliability is high: the advantages of the traditional steel pile and the novel suction tube foundation are combined, the pile foundation is arranged in the center of the suction tube and connected through grouting, and sufficient bearing capacity is provided;
3) the construction is convenient: the seabed is set up through truss structure self, does not need auxiliary platform or auxiliary structure stable truss basis.
Drawings
Fig. 1 is a schematic structural diagram of a pile-tube composite truss type offshore wind turbine foundation provided in embodiment 1;
fig. 2 is a schematic structural diagram of a suction tube and a pile foundation provided in embodiment 1;
fig. 3 is a schematic top view of a suction tube and a pile foundation provided in example 1;
fig. 4 is a schematic structural diagram of the pile-barrel composite truss type offshore wind turbine foundation provided in embodiment 2;
FIG. 5 is a cross-sectional view of a suction cartridge provided in example 1;
FIG. 6 is a partial view of the sealing cap of example 2;
FIG. 7 is a partial detailed view of the sealing cover of example 2;
FIG. 8 is a schematic view showing an entire model of a penetration stage of the suction bucket in example 2;
FIG. 9 is a partial model view showing the penetration stage of the suction bucket in example 2;
FIG. 10 is a schematic view showing the structure of example 2 in which the sealing lid is opened after the penetration of the suction bucket is completed;
FIG. 11 is a cross-sectional view of the piling stage of embodiment 2;
fig. 12 is a schematic structural view of the gap grouting between the insert sleeve and the pile foundation after pile driving is completed;
fig. 13 is a flowchart of a construction process of the pile-tube composite truss offshore wind turbine foundation according to the embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
The structure of the pile-tube composite truss type offshore wind power foundation provided by the embodiment is shown in fig. 1-3 and comprises two parts, namely an upper truss type structure 1, and a lower suction tube 2 and pile foundation 4 combined part.
The truss structure 1 includes: any jacket structure that can be used to carry a wind turbine and a tower. In this embodiment, the bottom connection of the jacket is in the form of three jacket legs.
The combination of the suction tube 2 and the pile foundation 4 comprises: a cylindrical thin-wall suction tube 2 with an opening at the lower part, wherein the top end of the suction tube 2 and the catheter frame leg are connected through a reinforcing member 7. Be equipped with the embedding sleeve 3 of installation pile foundation 4 in the suction section of thick bamboo 2, embedding sleeve 3 passes through the reinforcement member with a suction section of thick bamboo 2 and is connected, and the both ends opening of embedding sleeve 3, embedding sleeve 3's position, length, section of thick bamboo footpath are confirmed according to actual conditions. Pile foundation 4 accessible embedding sleeve 3 is driven into the seabed to increase foundation structure's bearing capacity, pile foundation 4 is connected through grout blanket 5 with embedding sleeve 3. The top end of the suction barrel 3 is provided with a pump interface 6 for connecting an underwater suction pump.
Example 2
As shown in fig. 4 to 7, the pile-barrel composite truss type offshore wind power foundation provided by the embodiment is different from that of embodiment 1 in that: the sealing device also comprises a sealing cover 12 movably connected with the top of the embedded sleeve, and a series of sealing rings and sealing rings 9 are arranged on the sealing cover 12 and the embedded sleeve 3 and used for ensuring the sealing property; the sealing cover 12 and the embedded sleeve 3 can be connected by a bolt 11, pretightening force is applied to ensure the sealing property, and the sealing cover can be fixed by adopting any connection modes such as a buckle, a hydraulic device and the like in practical implementation; the upper part of the sealing cover is provided with a lifting lug 10 for lifting the sealing cover away after the suction cylinder sinks; the insert sleeve 3 is connected to the suction tube 2 by a reinforcing member.
As shown in fig. 13 (the suction cylinder is also called as a negative pressure cylinder), the construction process of the pile cylinder composite truss type offshore wind turbine foundation provided by this embodiment is divided into a suction cylinder penetration stage and a piling stage, the construction method of the suction cylinder penetration stage is similar to that of the conventional suction cylinder foundation, and the construction method of the piling stage is similar to that of the post-piling type foundation.
As shown in fig. 8 and 9, the suction cartridge penetration stage:
1. after a suction tube foundation (pile tube composite truss type offshore wind turbine foundation/offshore wind turbine foundation) is transported to a machine position, installation and construction of the suction tube foundation can be carried out through the offshore self-elevating construction platform, and the top sealing cover of the embedded sleeve is in a closed state at the moment so as to guarantee sealing of the inner space of the suction tube.
2. The suction pump is installed for each suction barrel, then the offshore wind turbine foundation is lifted to leave the barge and is lowered to the offshore designated position, and at the moment, the sealing cover embedded into the top of the sleeve is in an open state to ensure the drainage of water in the suction barrel when the offshore wind turbine foundation sinks by self weight. Or the sealing cover can be kept closed, an opening and a valve are arranged at the top of the sealing cover, the opening is kept open before water pumping and sinking, and water in the barrel can flow out through the opening;
3. after the suction cylinder foundation is placed on the seabed, the offshore wind turbine foundation naturally sinks under the self-weight action of the structure, and the sinking speed of each suction cylinder needs to be monitored at any time in the sinking process.
4. And after the electrical equipment is checked to be normal, the sealing cover is tightly closed, if the sealing cover is provided with an opening, the opening valve is closed, and then the suction pump is opened. And the levelness of each cylinder is monitored in real time in the process of slowly descending the suction cylinder so as to ensure that the bottom of each cylinder is uniformly stressed.
5. And after the offshore wind turbine foundation is lowered to the designated depth under the action of the suction pump, removing the suction pump and disconnecting the pipeline. And finishing the penetration process of the suction tube. It should be noted that, the sealed lid of embedding sleeve upper end and opening valve should be sealed all the time to the penetration in-process of drawing water, guarantees the pressure of drawing water and penetrating.
As shown in fig. 10-12, the piling stage:
6. after the suction section of thick bamboo penetrated to the design degree of depth, open the sealed lid in sleeve top and remove, insert the sleeve with the steel-pipe pile afterwards, use the pile hammer to carry out the pile operation, beat the stake to the design degree of depth.
7. After the pile is driven, the space in the suction tube and the gap between the pile and the sleeve can be grouted to enhance the structural strength and the connection strength between the structures, and if the structural strength and the connection between the pile and the tube are realized by other methods, the grouting can be omitted.
The above-mentioned embodiments are intended to illustrate the technical solutions and advantages of the present invention, and it should be understood that the above-mentioned embodiments are only the most preferred embodiments of the present invention, and are not intended to limit the present invention, and any modifications, additions, equivalents, etc. made within the scope of the principles of the present invention should be included in the scope of the present invention.

Claims (9)

1. The utility model provides a compound truss-like offshore wind turbine basis of a pile section of thick bamboo, its characterized in that, compound truss-like offshore wind turbine basis of a pile section of thick bamboo includes truss-like structure, a suction section of thick bamboo and pile foundation, a suction section of thick bamboo is connected with truss-like structure's bottom, be equipped with the embedding sleeve of installation pile foundation on the suction section of thick bamboo.
2. The pile-tubular composite truss offshore wind turbine foundation of claim 1, wherein the truss structure includes a jacket structure for carrying the wind turbine and the tower, the jacket including a plurality of jacket legs in one-to-one correspondence with the suction tubes, the jacket legs being connected to the top ends of the suction tubes by stiffening members.
3. The pile-barrel composite truss offshore wind turbine foundation of claim 2, wherein the eccentric position of the suction barrel is provided with an embedded sleeve for installing a pile foundation, and the conduit frame leg is connected to the central position of the suction barrel; or the central position of the suction tube is provided with an embedded sleeve for installing a pile foundation, and the conduit frame leg is connected to the eccentric position of the suction tube.
4. The pile-barrel composite truss offshore wind turbine foundation of claim 1, wherein a cured grout blanket is disposed between the embedment sleeve and the pile foundation.
5. The pile-tube composite truss offshore wind turbine foundation of claim 1, wherein the suction tube is provided with a reinforcing member therein for supporting the suction tube and connecting the suction tube to the insert sleeve.
6. The pile-barrel composite truss offshore wind turbine foundation of claim 1, wherein the top end of the suction barrel is provided with a pump interface for connecting a suction pump or a suction line.
7. The pile-barrel composite truss offshore wind turbine foundation of claim 1, wherein the pile-barrel composite truss offshore wind turbine foundation includes a seal cap movably connected to a top of the insert sleeve.
8. The pile-barrel composite truss offshore wind turbine foundation of claim 7, wherein the sealing cover is provided with openings and valves.
9. A process for constructing a pile-barrel composite truss offshore wind turbine foundation according to any one of claims 1 to 8, wherein the process comprises the steps of:
(1) enabling a sealing cover embedded into the top of the sleeve or a valve on the sealing cover to be in an open state, hanging the truss structure and a suction tube connected with the bottom of the truss structure to the seabed, penetrating the truss structure into the seabed under the action of gravity after contacting the seabed, then closing the sealing cover embedded into the top of the sleeve or the valve on the sealing cover, and forming a closed space in the suction tube;
(2) carrying out water pumping operation on the suction barrel through a suction pump or a suction pipeline to enable the suction barrel to sink to a specified elevation, stopping the suction pump after the specified elevation is reached, and sealing a pump connector through a cover plate or grouting measures to finish the installation of the suction barrel;
(3) after the suction section of thick bamboo installation is accomplished, open the sealed lid in sleeve top, insert the embedding sleeve with the pile foundation, pile sinking completion back is in pile foundation and embedding sleeve clearance grout.
CN202010162101.4A 2020-03-10 2020-03-10 Pile barrel composite truss type offshore wind turbine foundation and construction process thereof Pending CN111456075A (en)

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Application Number Priority Date Filing Date Title
CN202010162101.4A CN111456075A (en) 2020-03-10 2020-03-10 Pile barrel composite truss type offshore wind turbine foundation and construction process thereof

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Application Number Priority Date Filing Date Title
CN202010162101.4A CN111456075A (en) 2020-03-10 2020-03-10 Pile barrel composite truss type offshore wind turbine foundation and construction process thereof

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CN111456075A true CN111456075A (en) 2020-07-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112195962A (en) * 2020-09-27 2021-01-08 中国电建集团华东勘测设计研究院有限公司 Offshore electric platform pile-sleeve foundation structure with anti-sinking box structure

Citations (3)

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Publication number Priority date Publication date Assignee Title
US20090052994A1 (en) * 2007-08-24 2009-02-26 Kinton Lawler Subsea suction pile crane system
CN109356189A (en) * 2018-10-23 2019-02-19 中国能源建设集团广东省电力设计研究院有限公司 A kind of cylinder composite guide pipe support blower foundation and its construction method
CN110374131A (en) * 2019-07-19 2019-10-25 浙江大学 A kind of cylinder composite truss formula offshore wind turbine foundation and its construction technology

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090052994A1 (en) * 2007-08-24 2009-02-26 Kinton Lawler Subsea suction pile crane system
CN109356189A (en) * 2018-10-23 2019-02-19 中国能源建设集团广东省电力设计研究院有限公司 A kind of cylinder composite guide pipe support blower foundation and its construction method
CN110374131A (en) * 2019-07-19 2019-10-25 浙江大学 A kind of cylinder composite truss formula offshore wind turbine foundation and its construction technology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112195962A (en) * 2020-09-27 2021-01-08 中国电建集团华东勘测设计研究院有限公司 Offshore electric platform pile-sleeve foundation structure with anti-sinking box structure

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