CN102337746A - Offshore wind power generation tower foundation and structure and installation and construction method thereof - Google Patents
Offshore wind power generation tower foundation and structure and installation and construction method thereof Download PDFInfo
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- CN102337746A CN102337746A CN2010102379391A CN201010237939A CN102337746A CN 102337746 A CN102337746 A CN 102337746A CN 2010102379391 A CN2010102379391 A CN 2010102379391A CN 201010237939 A CN201010237939 A CN 201010237939A CN 102337746 A CN102337746 A CN 102337746A
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Abstract
The invention provides an offshore wind power generation tower foundation and structure and an installation and construction method thereof. The offshore wind power generation tower foundation comprises a central pile and a plurality of satellite piles surrounding the central pile; a central structure node is arranged on the top of the central pile, while satellite structure nodes are arranged on the tops of the satellite piles; components are connected between the central structure node and the satellite structure nodes and between the satellite structure nodes so as to form an offshore structure layer; a central column is arranged right above the top of the central pile, the central pile and the central column are connected by virtue of a structure node; a first structure node is arranged below the top of the central column, the first structure node and the satellite structure nodes are connected through an inclined column or an inclined cable so as to form a space symmetric structure of the wind power generation tower; and a second structure node is arranged on the top end of the central column, and is provided with wind power generation equipment. According to the invention, the functions of the tower are maintained, the cost of the tower is reduced, and the offshore wind power generation tower is installed and constructed in a shoal water or still water area which easily causes the stranding of a construction ship, by combining the existing conventional offshore construction equipment.
Description
Technical field
The present invention relates to the Foundation Design technical field, particularly a kind of wind-power electricity generation pylon waterborne basis and structure and construction method of installation thereof.
Background technology
Wind power generation stepped basis waterborne mainly contains single pile basis, gravity basis and jacket multi-column pier foundation; Superstructure mainly adopts single-unit tower tube, binodal or more piece tower cartridge form up and down.The assembly unit waterborne of blower fan need make accurate contraposition and the accurate contraposition between the 3rd blade and the cabin wheel hub between accurate contraposition, the accurate contraposition between the tower tube, tower tube top and the cabin between tower tube bottom and the blower foundation.Traditional crane ship only relies on the anchor hawser system to the hull positioning and fixing; Receive the influence of active forces such as marine wave, trend; When the erection tower superstructure, rocking that hull is slight can cause the several Mi Weiyi that highly locate more than 50 meters, and construction is difficulty very; Safety can not guarantee, so need large special operation boats and ships and large scale hoisting machinery to carry out split assembly unit waterborne or integral installation.
Existing wind-power electricity generation pylon structure weight waterborne is big, and Master Cost is high.And because pylon structure weight is big; Its making, transportation, installation and wind power plant installation need large transport ship oceangoing ship, large special operation boats and ships and large scale hoisting machinery; Construction equipment machine-team occupancy expenses is very high, is unfavorable for the popularization of this cleaning low-carbon (LC) of the wind-power electricity generation waterborne energy.
Summary of the invention
The object of the present invention is to provide a kind of wind-power electricity generation pylon waterborne basis and structure and construction method of installation thereof; In the function that keeps pylon; Reduce its cost simultaneously, and combine existing conventional over-water construction equipment that stranded easily shallow water of construction ship or hydrostatic zone installation wind-power electricity generation pylon waterborne are provided.
For achieving the above object, technical scheme of the present invention is,
Wind-power electricity generation pylon basis waterborne and structure, it comprises, the basis of wind-power electricity generation pylon waterborne comprises a Center stake and some satellite stakes that centers on Center stake and keep certain distance to arrange; Center stake stake top slightly exceeds the water surface, and certain depth in the underwater soil is inserted at the stake end; The stake top of satellite stake slightly exceeds the water surface, and certain depth in the underwater soil is inserted at the stake end; The stake top of Center stake is provided with a division center node, on the stake top of each satellite stake a satellite structure node is set respectively, between division center node and the satellite structure node, and connects through member between each satellite structure node, constitutes deck on the water surface;
Directly over the Center stake top central post is set, Center stake is connected through a syndeton node with central post; Central post is a vertical column, and the capital height should satisfy the requirement that wind power plant is installed above it;
Below, central post top does not influence the blade of wind-driven generator operation one first structure node highly is set, and batter post or tiltedly cable connection are set between the satellite structure node on this first structure node and satellite stake stake top, forms the space symmetrical structure of wind-power electricity generation pylon; The central post top is provided with one second structure node, on this second structure node, wind power plant is installed.
Further, the cross-sectional form of described Center stake is a solid pile, or for being with the pile tube of centre bore.
Again, described satellite stake is a plumb pile, perhaps, is the taper pile of entad arranging around Center stake.
In addition, the cross-sectional form of central post of the present invention should satisfy the requirement that cable, hawser and small-sized lift installation are passed through in hole within it for the tubing string of band centre bore, cross sectional dimensions.
The construction method of installation of wind-power electricity generation pylon waterborne basis of the present invention and structure, it comprises the steps:
1) when high water level, adopt pile driving barge machine facility precalculated position in water to squeeze into Center stake and some satellite stakes;
2) utilize small-sized construction vessel a division center node to be set on the stake top of Center stake; On the stake top of each satellite stake a satellite structure node is set respectively; Connect through member between division center node and the satellite structure node; Connect through member between each satellite structure node, constitute deck on the water surface;
3) one group of fixed pulley is installed in advance at the central post top, and below the central post top, is not influenced blade of wind-driven generator operation one first structure node is installed highly in advance, one second structure node is installed in advance in the central post top;
4) utilize the lifting gear lifting central post of pile driving barge and be installed in the top of Center stake, Center stake is connected through a syndeton node with Center stake;
5) utilize the fixed pulley at central post top and corresponding hawser to lift by crane and adjust first structure node;
6) utilize the fixed pulley at central post top and corresponding hawser to lift by crane and install batter post or oblique cable, make its upper end be connected in first structure node, the lower end is connected to each satellite structure node, forms the lower space structure of wind-power electricity generation pylon.
Further, lay soft raft or other materials, prevent to be absorbed in the earth when pile driving barge or other crane ships are stranded in the zone that pile driving barge or other crane ships will be stopped; Pile driving barge or other crane ships sail into and rest near the Center stake when high water level.
Again; Can utilize low water stage or take heavy duty to press the storehouse measure to make pile driving barge or other crane ships stranded, hour utilize the lifting gear on pile driving barge or other crane ships that the wind power plant lifting is installed on second structure node in the wave action influence at stop position.
Have again, can also utilize high water level or take the unloading measure to make pile driving barge or other crane ships break away from stranded state, sail out of then.
Beneficial effect of the present invention
1) wind-power electricity generation pylon structure form waterborne provided by the present invention can reduce the construction material consumption, and keeps the function of pylon.
2) wind-power electricity generation pylon structure form waterborne provided by the present invention can utilize existing marine piling construction equipment and barge to carry out installation, does not need large-scale lifting ship machine and transportation ship.
3) wind-power electricity generation pylon structure form waterborne provided by the present invention can be saved Master Cost, reduces the construction equipment One-Shift Costs, thereby reaches the purpose that reduces cost.
Description of drawings
Fig. 1 a is the structural representation of an embodiment of the present invention's wind-power electricity generation pylon waterborne;
Fig. 1 b is the A-A sectional view of Fig. 1;
Fig. 2 a～Fig. 2 f is the installation sketch map of the present invention's wind-power electricity generation pylon waterborne embodiment one;
Fig. 2 c is the B-B sectional view of Fig. 2 b;
Fig. 3 a～Fig. 3 e is the installation sketch map of the present invention's wind-power electricity generation pylon waterborne embodiment one;
Fig. 3 f is the C-C sectional view of Fig. 3 b.
The specific embodiment
Referring to Fig. 1 a, Fig. 1 b, wind-power electricity generation pylon basis waterborne of the present invention and structure, it comprises, the basis of wind-power electricity generation pylon waterborne comprises by 1 Center stake 1 and some satellite stakes 2 that center on Center stake 1 and keep certain distance to arrange; Center stake 1 is a plumb pile; The stake top slightly exceeds the water surface; Certain depth in the underwater soil is inserted at the stake end; Can keep its stability that receives load actions such as wind-force, drag force, wave force in the installation stage, can in the operation phase necessary axial and side direction bearing capacity be provided for the wind-power electricity generation pylon structure again.The cross-sectional form of Center stake 1 can be a solid pile, also can be the pile tube that centre bore is arranged.
The stake top of Center stake 1 is provided with 1 division center node 31, on the stake top of satellite stake 21 satellite structure node 32 is set respectively.Connect through member 4 between division center node 31 and the satellite structure node 32; Connect through member 4 between each satellite structure node 32; Constitute deck on the water surface, bear lateral loads such as construction period wind-force, drag force, wave force, construction ship berthing force jointly with Center stake 1 and satellite stake 2.
Directly over Center stake 1 top central post 5 is set, Center stake 1 is connected through division center node 31 with central post 5.Central post 5 is a vertical column, and the capital height should satisfy the requirement that wind power plant is installed above it.The cross-sectional form of central post 5 is the tubing string that centre bore is arranged, and cross sectional dimensions should satisfy the requirement that cable, hawser and small-sized lift installation are passed through in hole within it.Below, central post 5 tops does not influence the blade of wind-driven generator operation 1 first structure node 51 highly is set; Batter post 6 or tiltedly cable 6 connections are set between node 51 and the node 32; Form the space symmetrical structure of wind-power electricity generation pylon, bear the wind-power electricity generation pylon at loads such as the gravity of normal work period, wind-force, drag force, wave force, berthing impact, geological processes.Central post 1 top is provided with 1 second structure node 52, on node 52, wind power plant is installed.
Referring to seeing Fig. 2 a～Fig. 2 f, the installation and the job practices of a kind of structure of the present invention wind-power electricity generation pylon waterborne basis and structure.
1) adopt pile driving barge and pile driver precalculated position in water to squeeze into 1 Center stake 1, Center stake 1 is the steel pipe pile of diameter 1470mm, wall thickness 20mm.Center stake 1 is the plumb pile of length overall 60m, wherein under the mud face in long, the water of 52m on long, the water surface of 3m 5m long;
2) adopt pile driving barge and pile driver around Center stake 1, to squeeze into 4 satellite stakes 2.Satellite stake 2 all is the taper pile of length overall 60m, and the inclination ratio of its horizontal direction and vertical direction is 1: 20, and the center of being evenly arranged in, stake top exceeds water surface 5m on the circumference of the axle center 5m of Center stake.Satellite stake 2 all is the steel pipe pile of diameter 1470mm, wall thickness 20mm;
3) utilize small-sized construction vessel 1 division center node 31 to be set, on the stake top of satellite stake 2,1 satellite structure node 32 is set respectively on the stake top of Center stake 1.With connecting through member 4 between division center node 31 and the satellite structure node 32, connect through member 4 between the satellite structure node 32 then, constitute deck on the water surface.Wherein no member connects between two structure nodes 32, slot milling supply the construction ship near;
4) 1 group of fixed pulley 7 is installed at the 0.3m place in advance under the top of central post 5, and 1 first structure node 51 is installed at the 15m place in advance below central post 5 tops, in the central post top 1 second structure node 52 is installed in advance.Central post 5 is the steel pipe column of diameter 1420mm, wall thickness 20mm, length overall 80m;
5) utilize the lifting gear lifting central post 5 of pile driving barge and insert the top 5m of Center stake 1, central post 5 is connected through structure node 31 with Center stake 1;
6) utilize the fixed pulley 7 at central post 5 tops and corresponding hawser to lift by crane and adjust first structure node 51;
7) utilize the fixed pulley 7 at central post 5 tops and corresponding hawser to lift by crane and install 4 batter posts 6; Batter post 6 is the steel pipe column of diameter 1420mm, wall thickness 20mm, length overall 65.1m, and the upper end is connected in first structure node 51, and the lower end is inserted satellite stake 2 about 5m respectively, and connects through structure node 32, forms the lower space structure of wind-power electricity generation pylon;
8), the zone laying soft raft that pile driving barge will be stopped is absorbed in the earth when preventing that pile driving barge is stranded.Pile driving barge sails into and rests near the Center stake 1 when high water mark;
9) utilize low tide and take heavy duty to press the storehouse measure to make pile driving barge stranded to reduce the wave action influence, adopt the lifting gear on the pile driving barge that the wind power plant lifting is installed on second structure node 52 of height 75m then at stop position;
10) utilize high water mark and take the unloading measure to make pile driving barge break away from stranded state, sail out of then.
Referring to Fig. 3 a～Fig. 3 f, the installation and the job practices of another form of structure of the present invention wind-power electricity generation pylon waterborne basis and structure.
1) adopt pile driving barge and pile driver precalculated position in water to squeeze into 1 Center stake 1.Center stake 1 is the steel pipe pile of diameter 1470mm, wall thickness 20mm.Center stake 1 is the plumb pile of length overall 60m, wherein under the mud face in long, the water of 52m on long, the water surface of 3m 5m long.
2) adopt pile driving barge and pile driver around Center stake 1, to squeeze into 4 satellite stakes 2.Satellite stake 2 all is the taper pile of length overall 60m, and the inclination ratio of its horizontal direction and vertical direction is 1: 20, and the center of being evenly arranged in, stake top exceeds water surface 5m on the circumference of the axle center 5m of Center stake.Satellite stake 2 all is the steel pipe pile of diameter 1470mm, wall thickness 20mm.
3) utilize small-sized construction vessel 1 division center node 31 to be set, on the stake top of satellite stake 2,1 satellite structure node 32 is set respectively on the stake top of Center stake 1.With connecting through member between division center node 31 and the satellite structure node 32, connect through member between the structure node 32 then, constitute deck on the water surface.Wherein no member connects between two structure nodes 32, slot milling supply the construction ship near.
4) 1 group of fixed pulley 7 is installed at the 0.3m place in advance under the top of central post 5, and 1 first structure node 51 is installed at the 15m place in advance below central post 5 tops, in the central post top one second structure node 52 is installed in advance.Central post 5 is the steel pipe column of diameter 1420mm, wall thickness 20mm, length overall 80m.
5) utilize the lifting gear lifting central post 5 of pile driving barge and insert the top 5m of Center stake 1, central post 5 is connected through division center node 31 with Center stake 1.
6) utilize the fixed pulley 7 at central post 5 tops and corresponding hawser to lift by crane and adjust first structure node 51.
7) utilize the fixed pulley 7 at central post 5 tops and corresponding hawser to lift by crane and install 4 oblique cables 6.Tiltedly cable 6 is 88mm for area
2Wirerope, length overall 60m, the upper end is connected in first structure node 51, the lower end is connected with satellite structure node 32 respectively, forms the lower space structure of wind-power electricity generation pylon.
8) pile driving barge sails into and rests near the Center stake 1.
When 9) utilizing inland lake or rivers wave action influence little, adopt the lifting gear on the pile driving barge that the wind power plant lifting is installed on second structure node 52 of height 75m.
10) pile driving barge sails out of construction area then.
The present invention can be applied to can save Master Cost in the wind power engineering of shallow sea or inland lake rivers, reduces construction equipment machine-team occupancy expenses, thereby reduces cost, and the development that utilizes this clean energy resource of wind-power electricity generation is arranged.Because the main member of wind-power electricity generation pylon structure waterborne all is a large-diameter steel pipe, the present invention can be large-diameter steel pipe and the weather-proof steel of sea water resistance are expanded the range of application and the market space widely.Because wind-power electricity generation waterborne needs the wind power plant of light high-efficiency, the present invention can be high grade electric steel steel and expands the range of application and the market space widely.
Claims (8)
1. wind-power electricity generation pylon basis waterborne and structure is characterized in that: comprise,
The basis of wind-power electricity generation pylon waterborne comprises a Center stake (1) and some satellite stakes (2) that centers on Center stake (1) and keep certain distance to arrange; Center stake (1) stake top slightly exceeds the water surface, and certain depth in the underwater soil is inserted at the stake end; The stake top of satellite stake (2) slightly exceeds the water surface, and certain depth in the underwater soil is inserted at the stake end; The stake top of Center stake (1) is provided with a division center node (31); On the stake top of each satellite stake a satellite structure node (32) is set respectively; Between division center node and the satellite structure node, and connect through member (4) between each satellite structure node, constitute deck on the water surface;
Central post (5) is set directly over the Center stake top, and Center stake (1) is connected through a syndeton node (31) with central post (5); Central post (5) is a vertical column, and the capital height should satisfy the requirement that wind power plant is installed above it;
Below, central post (5) top does not influence the blade of wind-driven generator operation one first structure node (51) highly is set; Batter post (6) or tiltedly cable (6) connection are set between the satellite structure node (32) on this first structure node (51) and satellite stake (2) stake top, form the space symmetrical structure of wind-power electricity generation pylon; Central post (5) top is provided with one second structure node (52), goes up at this second structure node (52) wind power plant is installed.
2. wind-power electricity generation pylon basis waterborne as claimed in claim 1 and structure is characterized in that: the cross-sectional form of described Center stake (1) is a solid pile, or for being with the pile tube of centre bore.
3. wind-power electricity generation pylon basis waterborne as claimed in claim 1 and structure is characterized in that: described satellite stake (2) is a plumb pile, perhaps, is the taper pile of entad arranging around Center stake.
4. wind-power electricity generation pylon basis waterborne as claimed in claim 1 and structure; It is characterized in that: the cross-sectional form of described central post (5) should satisfy the requirement that cable, hawser and small-sized lift installation are passed through in hole within it for the tubing string of band centre bore, cross sectional dimensions.
5. the construction method of installation of wind-power electricity generation pylon waterborne basis as claimed in claim 1 and structure, it comprises the steps:
1) when high water level, adopt pile driving barge machine facility precalculated position in water to squeeze into Center stake (1) and some satellite stakes (2);
2) stake that utilizes small-sized construction vessel that each satellite stake of a division center node (31) is set on the stake top of Center stake (1) is pushed up a satellite structure node (32) is set respectively; Connect through member (4) between division center node (31) and the satellite structure node (32); Connect through member (4) between each satellite structure node, constitute deck on the water surface;
3) one group of fixed pulley (7) is installed in advance at the central post top, and below the central post top, is not influenced blade of wind-driven generator operation one first structure node (51) is installed highly in advance, one second structure node (52) is installed in advance in the central post top;
4) utilize the lifting gear lifting central post (5) of pile driving barge and be installed in the top of Center stake, Center stake (1) is connected through a syndeton node with central post (5);
5) utilize the fixed pulley (7) at central post (5) top and corresponding hawser to lift by crane and adjust first structure node (51);
6) utilize the fixed pulley at central post top and corresponding hawser to lift by crane and install batter post (6) or oblique cable (6), make its upper end be connected in first structure node (51), the lower end is connected to each satellite structure node (32), forms the lower space structure of wind-power electricity generation pylon.
6. the construction method of installation of wind-power electricity generation pylon waterborne basis as claimed in claim 5 and structure; It is characterized in that; Soft raft or other materials are laid in zone in that pile driving barge or other crane ships will be stopped, prevent to be absorbed in the earth when pile driving barge or other crane ships are stranded; Pile driving barge or other crane ships sail into and rest near the Center stake when high water level.
7. the construction method of installation of wind-power electricity generation pylon waterborne basis as claimed in claim 5 and structure; It is characterized in that; Utilize low water stage or take heavy duty to press the storehouse measure to make pile driving barge or other crane ships stranded, hour utilize the lifting gear on pile driving barge or other crane ships that the wind power plant lifting is installed on second structure node in the wave action influence at stop position.
8. the construction method of installation of wind-power electricity generation pylon waterborne basis as claimed in claim 5 and structure is characterized in that, utilizes high water level or takes the unloading measure to make pile driving barge or other crane ships break away from stranded state, sails out of then.
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| CN 201010237939 CN102337746B (en) | 2010-07-27 | 2010-07-27 | Installation and construction method of offshore wind power generation tower foundation and structure |
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| CN 201010237939 CN102337746B (en) | 2010-07-27 | 2010-07-27 | Installation and construction method of offshore wind power generation tower foundation and structure |
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| CN104695465A (en) * | 2013-12-08 | 2015-06-10 | 国家电网公司 | Construction method of tree-root-shaped electric tower pile cluster made of glass fiber reinforced plastics |
| CN105386457A (en) * | 2015-12-15 | 2016-03-09 | 贵州电力设计研究院 | Iron tower foundation structure of high slope overhead transmission line iron tower |
| CN109058052A (en) * | 2018-08-29 | 2018-12-21 | 李华青 | The integrated form fixing and mounting bracket of new energy wind power plant |
| CN111236209A (en) * | 2020-02-13 | 2020-06-05 | 中国铁建港航局集团有限公司 | Device and method for stabilizing tubular pile of open sea pipe |
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| Publication number | Publication date |
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| CN102337746B (en) | 2013-09-04 |
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