CN115198808A - Bionic grass installation method for preventing scouring of offshore wind power foundation - Google Patents
Bionic grass installation method for preventing scouring of offshore wind power foundation Download PDFInfo
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- CN115198808A CN115198808A CN202210721448.7A CN202210721448A CN115198808A CN 115198808 A CN115198808 A CN 115198808A CN 202210721448 A CN202210721448 A CN 202210721448A CN 115198808 A CN115198808 A CN 115198808A
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- bionic grass
- bionic
- steel wire
- wind power
- offshore wind
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- 244000025254 Cannabis sativa Species 0.000 title claims abstract description 54
- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 54
- 238000009434 installation Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000009991 scouring Methods 0.000 title abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 230000007704 transition Effects 0.000 claims abstract description 15
- 230000002265 prevention Effects 0.000 claims description 14
- 230000003628 erosive effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000429 assembly Methods 0.000 description 9
- 230000000712 assembly Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 239000004575 stone Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/06—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against corrosion by soil or water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Foundations (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a bionic grass installation method for preventing scouring of an offshore wind power foundation, which comprises the following steps of: installing the frame main body on land, and combining the bionic grass to form a bionic grass installation module; fixing the bionic grass installation module on an ear plate at the bottom of the frame main body through a steel wire rope; the ear plates are folded and the vertical track is bound; transporting and hoisting the collected bionic grass installation module to a fan steel pipe foundation; and unfolding the bionic grass installation module to realize the installation of the bionic grass on the basis of the steel pipe. According to the method, the horizontal guide rail is unfolded through the steel wire by pulling equipment on the basis of the fan, so that underwater operation can be effectively avoided. The tail end of the horizontal rail is provided with a transition step for unidirectional locking, so that the horizontal guide rail can be effectively prevented from being folded under the action of water flow. By using the method, the bionic grass can be effectively installed on the foundation of the fan pile without underwater operation, the construction efficiency is high, the offshore installation time can be effectively shortened, and the construction cost is reduced.
Description
Technical Field
The invention belongs to the technical field of offshore wind power engineering, and particularly relates to an anti-scouring bionic grass installation method for an offshore wind power foundation.
Background
In recent years, with the continuous establishment of offshore wind farms and the operation of grid-connected power generation, many operating problems of offshore wind farms are continuously highlighted, some of the operating problems even bring potential safety hazards to the safe operation of wind turbines, such as seabed scouring, and for offshore wind farms with serious scouring, in order to effectively ensure the safety of wind turbine foundations, anti-scouring protection is necessary to be carried out on pile foundations.
At present, most offshore wind power plants adopt passive scour prevention schemes such as stone throwing, sand bags or sand quilts, sand stones are mainly buried in scouring pits, and scour prevention effects are achieved. The bionic grass scouring prevention scheme achieves the effects of fundamentally preventing scouring and achieving the scouring prevention effect by mainly slowing down ocean currents and depositing sand and stones in the ocean currents, and is low in cost. However, a mature, effective and easily-laid installation scheme is not available at present, so that the installation difficulty is high, the cost is high, and large-area application is not available at present.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the bionic grass installation method for the scour prevention of the offshore wind power foundation.
A bionic grass installation method for preventing scouring of an offshore wind power foundation comprises the following steps:
s1, installing a frame main body on land, and combining bionic grass to form a bionic grass installation module;
s2, fixing the bionic grass installation module on an ear plate at the bottom of the frame main body through a steel wire rope;
s3, retracting the ear plates and binding the vertical rail;
s4, transporting and hoisting the collected bionic grass installation module to a fan steel pipe foundation;
s5, unfolding the bionic grass installation module to realize the installation of the bionic grass on the basis of the steel pipe.
Further, the step S5 includes the steps of:
and S51, pulling the traction steel wire rope through traction equipment or a hoist crane, so that the roller skating assembly rolls on the vertical rail and the horizontal rail until the bionic grass installation module is unfolded.
Furthermore, the frame main body is sleeved on the steel pipe pile foundation through a fixed ring beam.
Furthermore, vertical rails are arranged on the outer wall of the fixed ring beam in a row, and the horizontal rails are matched with the vertical rails in a hinged mode through the matching of the hinged modules.
Furthermore, a slide rail connecting rod is arranged on the vertical rail in a matched mode through a wheel slide assembly, and the other end of the slide rail connecting rod is connected with the horizontal rail in a matched mode through the wheel slide assembly.
Furthermore, lug plates are arranged on two sides of the horizontal rails, the end portions of the steel wire ropes are connected to the lug plates, two ends of each steel wire rope are connected with the two adjacent groups of the horizontal rails respectively to form a steel wire net, and the bionic grass installation modules are fixed to the steel wire net.
Furthermore, a transition step is arranged at the tail end of the horizontal track, and the slide rail connecting rod is prevented from moving to the steel pipe pile foundation through the transition step;
and end plates are arranged at the ends of the transition steps to limit the moving range of the slide rail connecting rod.
Furthermore, the traction steel wire rope is matched and connected with the pulley assemblies in the vertical rail, and the pulley assemblies are matched through the reverse pulley assemblies, so that the traction steel wire rope drives the pulley assemblies to descend when the traction steel wire rope moves upwards along with the traction equipment, and the horizontal rail is unfolded.
Compared with the prior art, the invention has the following advantages:
according to the method, the horizontal guide rail is unfolded through the steel wire by pulling equipment on the basis of the fan, so that underwater operation can be effectively avoided. The tail end of the horizontal rail is provided with a transition step for unidirectional locking, so that the horizontal guide rail can be effectively prevented from being folded under the action of water flow. By using the method, the bionic grass can be effectively installed on the foundation of the fan pile without underwater operation, the construction efficiency is high, the offshore installation time can be effectively shortened, and the construction cost is reduced.
Drawings
FIG. 1 is a schematic view of the installation effect of the bionic grass installation device of the present invention;
FIG. 2 is a plan view after installation;
FIG. 3 is a schematic view of the assembly of the vertical rail and the slide rail link;
FIG. 4 is a schematic view of the horizontal rail and hinge module assembly;
FIG. 5 is a schematic view of the horizontal rail and the slide rail link assembly;
FIG. 6 is a schematic view of a sheave assembly;
FIG. 7 is a schematic view of a horizontal rail structure;
FIG. 8 is an enlarged view of the hinged end of the horizontal rail
FIG. 9 is an enlarged view of a horizontal rail transition step;
fig. 10 is a schematic view of a reverse pulley assembly.
In the figure: 1, seabed mud surface; 2, a steel pipe pile foundation; 3, drawing a steel wire rope; 4 fixing the ring beam; 5, a vertical track; 6, a slide rail connecting rod; 7 horizontal rails; 71 a transition step; 72 ear plates; 73 end plates; 8, steel wire ropes; 9 a bionic grass installation module; 10 a sheave assembly; 101, connecting columns; 102 a support rod; 103 rollers; 104 is connected with a shaft; 11 a reverse pulley assembly; 111 a counter pulley; 112 a base; 113 a rotating shaft; 12 a hinge module; 121 hinged sheet; 122, a hinge hole; 123 mounting seats.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1-10, a bionic grass installation method for offshore wind power foundation scour prevention comprises the following steps:
(1) Processing and assembling a fixed ring beam 4, a traction steel wire rope 3, a vertical rail 5, a slide rail connecting rod 6, a horizontal rail 7 and the like to form a frame main body, and unfolding the frame main body on the land;
(2) Combining the bionic grass into a bionic grass installation module 9;
(3) Fixing the bionic grass installation module 9 on the ear plates 72 at two sides of the two horizontal rails 7 on land through steel wire ropes 8;
(4) The horizontal rail 7 is folded by a crane and is bound corresponding to the vertical rail 5;
(5) Transporting and hoisting the collected bionic grass installation device to a fan steel pipe pile foundation 2;
(6) Through the traction equipment or the hoist on the steel-pipe pile foundation 2, the pulling wire rope 3 is pulled, the pulley assembly 10 installed on the vertical rail 5 is pulled, the horizontal rail 7 is unfolded through the slide rail connecting rod 6 and the pulley assembly 10 fixed on the horizontal rail 7, and the wire rope 8 and the bionic grass installation module 9 installed on the horizontal rail 7 are unfolded simultaneously to complete the installation of the bionic grass.
The device for installing the bionic grass mainly comprises a frame main body and a bionic grass installation module 9. The frame main body comprises a vertical rail 5 and a fixed ring beam 4, and the frame main body is sleeved on the steel pipe pile foundation 2. And is lowered along the steel pipe pile foundation 2 until the frame body is brought into contact with the seabed mud surface 1.
The bottom of the vertical track 5 is provided with a hinge module 12, and the horizontal track 7 is in hinge fit with the hinge module 12. And the vertical rail 5 is connected with the horizontal rail 7 through a slide rail connecting rod 6, two ends of the slide rail connecting rod 6 are respectively hinged with a pulley assembly 10, and the pulley assemblies 10 are respectively connected with the vertical rail 5 and the horizontal rail 7.
The hinge module 12 comprises a mounting seat 123, hinge pieces 121 are arranged on the side edges of the mounting seat 123, hinge holes 122 are formed in the hinge pieces 121, hinge ends 74 are arranged at the end portions of the horizontal rails 7, the hinge ends 74 are connected between the two hinge pieces 121 in an inserting mode, and connection is achieved through the hinge holes 122 matched with bolts.
The roller assembly 10 comprises a support rod 102, a connecting column 101 and a connecting shaft 104 are respectively arranged at two ends of the support rod 102, the connecting column 101 is connected with the slide rail connecting rod 6, a roller 103 is arranged on the connecting shaft 104, and the roller 103 is limited in the vertical rail 5 and the horizontal rail 7.
The horizontal rails are provided with a plurality of groups, and two sides of the horizontal rail 7 are provided with ear plates 72. And a steel wire rope 8 is arranged between two adjacent groups of horizontal rails 7, and the steel wire rope 8 is fixedly connected with the ear plates 72 to form a net-shaped structure. The bionic grass combination forms a block-shaped bionic grass installation module 9 which is installed in a matching way with the reticular steel wire rope net.
The tail end of the horizontal rail 7 is provided with a transition step 71, the end part of the transition step is provided with an end plate 73, unidirectional locking is carried out, and the horizontal guide rail can be effectively prevented from being folded under the action of water flow. After the horizontal rail 7 is unfolded, a height difference is formed between the transition step 71 and the rail main body of the horizontal rail 7, and when the horizontal rail is washed, the pulley assembly 10 cannot pass through the transition step 71, so that the roller 103 is prevented from going back to retract the horizontal rail. An end plate 73 is provided at the end to prevent the roller from slipping out.
The hinge module 12 is provided with two sets of reverse pulley assemblies 11, each reverse pulley assembly 11 comprises a base 112, a rotating shaft 113 is arranged on each base 112, and a reverse pulley 111 is sleeved on each rotating shaft. The traction wire rope 3 is connected to the reverse sheave assembly 11, and one end of the traction wire rope 8 is connected to a sheave assembly 10 provided in the vertical rail 5. The concrete connection mode is that one end of the traction steel wire rope 8 is connected with the connecting column 101, and the other end of the traction steel wire rope is connected with the traction equipment. Or the two ends of the traction steel wire rope 8 are respectively connected with the two connecting columns 101, then the traction steel wire rope winds around the reverse pulley 111 and extends upwards, and the traction equipment is connected with the traction steel wire rope 8. Two sets of reverse pulley assemblies 11 are arranged, the purpose is that traction steel wire ropes are arranged on connecting columns 101 at two ends of the pulley assemblies 10, the stress of the pulley assemblies 10 is uniform in the traction process, and the clamping is avoided. When the traction steel wire rope is dragged, the pulley assembly 10 in the vertical rail 5 is driven to descend to gradually unfold the horizontal sliding rail 7, and at the moment, the bionic grass is unfolded along with the net-shaped steel wire rope net and is in contact with the bottom seabed mud surface 1.
According to the method, the horizontal guide rail is unfolded through the steel wire by pulling equipment on the basis of the fan, so that underwater operation can be effectively avoided. The tail end of the horizontal rail is provided with the transition step for unidirectional locking, so that the horizontal guide rail can be effectively prevented from being folded under the action of water flow. By using the method, the bionic grass can be effectively installed on the foundation of the fan pile without underwater operation, the construction efficiency is high, the offshore installation time can be effectively shortened, and the construction cost is reduced.
Claims (8)
1. A bionic grass installation method for offshore wind power foundation scour prevention is characterized by comprising the following steps:
s1, installing a frame main body on land, and combining bionic grass to form a bionic grass installation module;
s2, fixing the bionic grass installation module on an ear plate at the bottom of the frame main body through a steel wire rope;
s3, the ear plates are folded and the vertical track is bound;
s4, transporting and hoisting the collected bionic grass installation module to a fan steel pipe foundation;
s5, unfolding the bionic grass installation module to realize the installation of the bionic grass on the basis of the steel pipe.
2. The method for installing the bionic grass for the scour prevention of the offshore wind power foundation as claimed in claim 1, wherein the step S5 comprises the following steps:
and S51, pulling the traction steel wire rope through traction equipment or a hoist crane, so that the roller skating assembly rolls on the vertical rail and the horizontal rail until the bionic grass installation module is unfolded.
3. The bionic grass installation method for the scour prevention of the offshore wind power foundation according to claim 1, wherein the frame body is sleeved on the steel pipe pile foundation (2) through a fixed ring beam (4).
4. The bionic grass installation method for offshore wind power foundation scour prevention according to claim 3, characterized in that vertical rails (5) are arranged on the outer wall of the fixed ring beam (4) in a row, and the horizontal rails (7) are matched with the vertical rails (5) in an articulated manner through the matching of the articulated modules (12).
5. The method for installing the bionic grass for the offshore wind power foundation erosion prevention according to claim 4, characterized in that a slide rail connecting rod (6) is arranged on the vertical rail (5) through the matching of a pulley assembly (10), and the other end of the slide rail connecting rod (6) is connected with the horizontal rail (7) through the matching of the pulley assembly (10).
6. The bionic grass installation method for offshore wind power foundation scour prevention according to claim 4, characterized in that ear plates (72) are arranged on two sides of the horizontal rails (7), the end portions of the steel wire ropes (8) are connected to the ear plates (72), two ends of each steel wire rope (8) are respectively connected with two adjacent groups of horizontal rails (7) to form a steel wire mesh, and the bionic grass installation modules (9) are fixed on the steel wire mesh.
7. The bionic grass installation method for the scour prevention of the offshore wind power foundation according to claim 5, characterized in that a transition step (71) is arranged at the tail end of the horizontal rail (7), and the slide rail connecting rod (6) is prevented from moving to the steel pipe pile foundation (2) through the transition step (71);
an end plate (73) is arranged at the end part of the transition step to limit the moving range of the slide rail connecting rod (6).
8. The bionic grass installation method for offshore wind power foundation scour prevention according to claim 4, characterized in that the traction steel wire rope (3) is connected with the pulley assembly (10) in the vertical rail in a matching manner, and the reverse pulley assembly (11) is matched, so that the traction steel wire rope (3) drives the pulley assembly (10) to descend when moving upwards along with the traction equipment, and the horizontal rail (7) is unfolded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210721448.7A CN115198808A (en) | 2022-06-24 | 2022-06-24 | Bionic grass installation method for preventing scouring of offshore wind power foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210721448.7A CN115198808A (en) | 2022-06-24 | 2022-06-24 | Bionic grass installation method for preventing scouring of offshore wind power foundation |
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| Publication Number | Publication Date |
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| CN115198808A true CN115198808A (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210721448.7A Pending CN115198808A (en) | 2022-06-24 | 2022-06-24 | Bionic grass installation method for preventing scouring of offshore wind power foundation |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965569A (en) * | 2019-12-29 | 2020-04-07 | 中国电建集团华东勘测设计研究院有限公司 | Umbrella type anti-scouring structure for offshore wind power single-pile foundation |
| CN112391995A (en) * | 2020-10-21 | 2021-02-23 | 广东华蕴海上风电科技有限公司 | Installation method of offshore wind power anti-scouring protection device |
| CN114250803A (en) * | 2022-01-04 | 2022-03-29 | 朱少程 | Marine wind power scour prevention protection device |
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2022
- 2022-06-24 CN CN202210721448.7A patent/CN115198808A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965569A (en) * | 2019-12-29 | 2020-04-07 | 中国电建集团华东勘测设计研究院有限公司 | Umbrella type anti-scouring structure for offshore wind power single-pile foundation |
| CN112391995A (en) * | 2020-10-21 | 2021-02-23 | 广东华蕴海上风电科技有限公司 | Installation method of offshore wind power anti-scouring protection device |
| CN114250803A (en) * | 2022-01-04 | 2022-03-29 | 朱少程 | Marine wind power scour prevention protection device |
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