CN106759430A - A kind of wind-powered electricity generation whole machine construction method of three bucket foundations and concrete support structure - Google Patents

Abstract

The invention relates to the field of offshore foundation structures, and discloses a construction method for a complete wind power machine with three cylindrical foundations and a concrete support structure. The steps are as follows: prefabricate three cylindrical foundations on land, arrange the cylindrical foundations in a triangle, and sequentially Carry out the construction of the concrete connection bottom plate, concrete ballast tank structure, vertical concrete connectors, concrete columns, oblique thin-slice variable-section concrete structure, and concrete connection roof, and assemble the tower and wind turbine; move the wind power machine into the water and Tow to the construction site; make the cylindrical foundation in place by venting and sinking under negative pressure, and finally put the ballast in the concrete ballast tank structure. The invention can be towed and lowered by self-floating, the whole lowering and lowering process does not need large-scale equipment, the construction is simple and fast, the required construction equipment is few, and expensive large-scale offshore on-site construction equipment is avoided, and the construction cost is low and the overall cost is low.

Description

A wind power machine construction method with three cylindrical foundations and concrete support structure

technical field

The invention relates to the field of basic structure of port, ocean, water conservancy and bridge engineering, in particular, relates to a construction method of a complete wind power machine in which multiple tubes are combined to optimize the stress of the tube-shaped foundation.

Background technique

At present, in the field of marine engineering such as offshore wind power projects, the foundation structures usually have pile foundations, gravity foundations, jacket foundations, negative pressure foundations and floating platforms, etc. These foundation structures usually require large machines for transportation and installation , resulting in higher construction costs and longer construction periods. Compared with the traditional foundation structure, the cylindrical foundation is widely used in marine engineering due to its low cost, convenient construction, safe and reliable use, and recyclable reuse.

However, the environment of the foundation structure of offshore wind power generation is very complex. In addition to the vertical force of the structural weight of the wind turbine tower transmitted from the superstructure, the load also includes the horizontal force and bending moment transmitted from the wind load to the foundation structure, and Waves, ocean currents, sea ice loads, etc. Large bending moment loads generally lead to a larger diameter of the cylindrical foundation, while the construction of a large-diameter single-cylinder foundation has many restrictions, such as the transportation and installation process requiring large machinery and tools, resulting in high construction costs in sea areas.

Contents of the invention

The present invention aims to solve the above-mentioned problems existing in the prior art. It provides a construction method for a complete wind power machine with three cylindrical foundations and a concrete support structure. Construction costs.

In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

A construction method for a complete wind power machine with three cylindrical foundations and a concrete support structure is carried out according to the following steps:

(1) Three cylindrical foundations are prefabricated on land, the interior of the cylindrical foundations is provided with compartments, and the top cover of the cylindrical foundations is provided with reserved holes for installing pipe joints;

(2) After the prefabrication of the cylindrical foundation is completed and the air tightness is checked to meet the design requirements, the three cylindrical foundations are arranged according to the line connecting their center points to form a triangle, and between the three cylindrical foundations Formwork support, binding steel bars and pouring concrete, carry out the construction of the concrete connection bottom plate;

The bottom surface of the concrete connection bottom plate is on the same plane as the top surface of the cylindrical foundation, which is arranged between the three cylindrical foundations and takes the line connecting the center points of the three cylindrical foundations as the outline;

(3) After the maintenance of the concrete connection bottom plate is completed and reaches the designed strength requirements, the top plate of each of the cylindrical foundations is used as the bottom formwork to carry out the construction of the concrete ballast tank structure, and every two concrete ballasts Carry out the construction of the vertical concrete connectors between the tank structures, the three concrete ballast tank structures and the three vertical concrete connectors support the formwork, bind the steel bars and pour concrete at the same time; pour the concrete ballast tank structure Install a pipe joint in the reserved hole of the top cover of the cylindrical foundation before the concrete, the top end of the pipe joint protrudes from the bottom surface of the concrete ballast tank structure, and the bottom end protrudes from the top surface of the cylindrical foundation;

The concrete ballast tank structure is a cylindrical structure with an opening upward, and the central axis of each concrete ballast tank structure is collinear with the central axis of the cylindrical foundation to which it is connected;

The vertical concrete connector is connected between every two concrete ballast tank structures, and the vertical concrete connector is coplanar with the central axis of the two connected concrete ballast tank structures;

(4) After the maintenance of the concrete ballast tank structure and the vertical concrete connectors is completed and the strength requirements of the design are reached, formwork is supported on the upper part of the concrete connection bottom plate, steel bars are bound and concrete is poured, and concrete columns and oblique Construction of thin-section variable-section concrete structures;

The concrete column is located at the inner position of the triangle formed by the three cylindrical foundations;

The oblique thin-section variable-section concrete structure is connected between the concrete column and each of the concrete ballast tank structures, the bottom extends to the concrete connection bottom plate, the top extends to the concrete connection top plate, and its section length is determined by the The concrete connection top plate is continuously changing to the edge of the concrete ballast tank structure;

(5) After the maintenance of the concrete column and the oblique thin-section variable-section concrete structure is completed and the strength requirements of the design are reached, formwork is supported on the top of the concrete column and the oblique thin-section variable-section concrete structure, steel bars are bound and concrete is poured, Concrete connection roof construction;

(6) After the maintenance of the concrete connection roof is completed and the design strength requirement is reached, a tower and a fan are assembled on the top of the concrete connection roof to form a wind power machine with three cylindrical foundations and a concrete support structure;

(7) Use a crane or a slideway to move the wind power machine of the three cylindrical foundations and the concrete support structure into the water, and provide buoyancy through the air in the hollow part of the cylindrical foundation or connect the air blowing pipe to the water by the pipe joint. The hollow part of the cylindrical foundation is injected with high-pressure gas to provide buoyancy, so that the wind power machine of the three cylindrical foundations and the concrete support structure floats on the water;

(8) Utilize the tugboat to drag the wind power complete machine of described three cylindrical foundations and the concrete support structure to the designated construction site;

(9) Take out the air in the hollow part of the cylindrical foundation through the pipe joint or release the high-pressure gas in the hollow part of the cylindrical foundation, so that the cylindrical foundation gradually sinks to the mud surface, and then pass the The pipe joint is connected to the suction pipe to pump out the water body in the cylindrical foundation to achieve negative pressure sinking to make it in place; when the cylindrical foundation is tilted during the sinking process, different compartments are applied to each sub-chamber through the pump system. Internal positive pressure for leveling;

(10) After the cylindrical foundation sinks into place, put ballast into the concrete ballast tank structure, and the construction is completed.

Wherein, the cylindrical foundation is circular, with an outer diameter of 10-20m and a height of 4-6m.

Wherein, the net distance between every two cylindrical foundations is 1 to 3 times the outer diameter of the cylindrical foundations.

Wherein, the structure of the concrete ballast tank is circular, its outer diameter is 10-20m, and its height is 4-6m.

Wherein, an upwardly extending steel rib is provided around the cylindrical foundation and inserted into the concrete ballast tank structure.

Wherein, the pipe joints are evenly arranged on the bottom surface of the concrete ballast tank structure, the diameter of which is 5-200mm, and the number is 10-100.

Wherein, the height of the vertical concrete connector is consistent with the height of the concrete ballast tank structure and the range is 4-6m, and the thickness is 0.5m-1.5m; the upper and lower sides of the vertical concrete connector are respectively connected to the The upper and lower surfaces of the concrete ballast tank structure are flush.

Wherein, the thickness of the concrete connection bottom plate and the concrete connection top plate are both 0.5m-2m.

Wherein, the height of the concrete column is 10-20m.

Wherein, the oblique thin-section variable-section concrete structures include 3 to 12, and 1-4 oblique thin-section variable-section concrete structures are connected between the concrete columns and each of the concrete ballast tank structures ; The thickness of the oblique thin slice concrete structure with variable cross-section is 0.5m-2m.

The beneficial effects of the present invention are:

The wind power machine construction method of the three cylindrical foundations and the concrete support structure of the present invention can be self-floating towed and sunk, the whole sunk process does not require large-scale equipment, the construction is simple and fast, and the required construction equipment is few, avoiding Expensive large-scale water on-site construction equipment is used, and the construction cost is low and the overall cost is low.

Description of drawings

Fig. 1 is the front view of three cylindrical foundations and the concrete supporting structure system involved in the construction method of the present invention;

Fig. 2 is the top view of three cylindrical foundations and concrete supporting structure systems involved in the construction method of the present invention;

Fig. 3 is the front view of the wind power complete machine of three cylindrical foundations and concrete support structures involved in the construction method of the present invention;

Fig. 4 is a schematic plan view of the compartment structure.

In the figure: 1. Cylindrical foundation; 2. Concrete ballast tank structure; 3. Vertical concrete connector; 4. Concrete column; Connect the bottom plate; 8. Subdivision plate.

detailed description

In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

As shown in Figures 1 to 4, this embodiment discloses a construction method for a complete wind power machine with three cylindrical foundations and a concrete support structure. The method is specifically carried out in accordance with the following steps:

(1) Three steel cylindrical foundations 1 are prefabricated on land. Each cylindrical foundation 1 is exactly the same. They are all cylindrical steel structure foundations with a closed top and an open bottom, with an outer diameter of 15m and a wall thickness of 25mm. The top cover is 50mm thick, and the cylinder height is 5m. The interior is divided into multiple compartments by setting compartment plates. The diameter of the cylindrical foundation 1 is usually 10-20m, and the height is usually 4-6m; the material can be reinforced concrete, steel, steel-reinforced concrete composite material; the interior can be subdivided or not. The subdivision room can be formed into a honeycomb shape, including a regular hexagonal subdivision in the center and six identical side subdivisions evenly arranged around it. All steel subdivision panels have the same length and are all steel circular cylindrical foundations. 1 0.25 times the diameter of the structure, as shown in Figure 4.

The top cover of the cylindrical foundation 1 is provided with reserved holes for installing pipe joints, and these reserved holes are evenly arranged radially on the top cover of the cylindrical foundation 1, and the number is 10-100.

After the prefabrication is completed, the cylindrical foundation 1 is hoisted into the water on the edge of the land to check its airtightness.

(2) After the airtightness of the cylindrical foundation 1 meets the design requirements, arrange the three cylindrical foundations 1 on the horizontal plane according to the line connecting their center points to form an equilateral triangle, and every two cylindrical foundations 1 center point The distance between them is 25m. The arrangement of the three cylindrical foundations 1 is required to be distributed in a triangle on the horizontal plane, that is, the centers of the three cylindrical foundations 1 are respectively located on the three vertices of the triangle. The clear distance between every two cylindrical foundations 1 is 1 to 3 times the outer diameter of the cylindrical foundation 1, so that the concrete support structure can be fully used to optimize the bearing capacity of the cylindrical foundation 1, and three cylindrical foundations 1 can be used. Group effect to improve the carrying capacity of the overall infrastructure system.

Then formwork is supported between the three cylindrical foundations 1, steel bars are bound and concrete is poured, and the construction of the concrete connection base plate 7 is carried out. The concrete connection bottom plate 7 is a slab concrete structure, which is arranged between the cylindrical foundations 1 and takes the line connecting the center points of the three cylindrical foundations 1 as the outline. The bottom surface of the concrete connection bottom plate 7 is located at the top surface of the three cylindrical foundations 1 on flat surface. The thickness of the concrete connecting bottom plate 7 is generally 0.5m-2m, and the specific size can be adjusted according to the actual project.

(3) After the maintenance of the concrete connection bottom plate 7 is completed and reaches the design strength requirements, the construction of the concrete ballast tank structure 2 is carried out on the upper part of each cylindrical foundation 1 with its top plate as the bottom surface formwork, and every two concrete ballast tanks The construction of the vertical concrete connectors 3 is carried out between the structures 2, and the three concrete ballast tank structures 2 and the three vertical concrete connectors 3 are molded, steel bars are bound and concrete is poured at the same time.

It should be noted that before pouring the concrete of the concrete ballast tank structure 2, a pipe joint for transmitting high-pressure gas or water should be installed in the reserved hole on the top cover of the cylindrical foundation 1, and the top of the pipe joint protrudes from the concrete ballast tank The bottom surface and bottom end of the structure 2 protrude from the top surface of the cylindrical foundation 1, and the inner diameter of the pipe joint is 5-200mm.

The concrete ballast tank structure 2 is an inverted cylindrical concrete structure with an open top and a closed bottom, with an outer diameter of 15m, a wall thickness of 35mm, a bottom thickness of 50mm, and a height of 5m. The outer diameter range of the concrete ballast tank structure 2 is 10-15m, and the height range is 4-6m. The central axis of the concrete ballast tank structure 2 is collinear with the central axis of the corresponding cylindrical foundation 1 , and the diameter of the concrete ballast tank structure 2 is equal to the diameter of the cylindrical foundation 1 . The interior of the concrete ballast tank structure 2 may also be provided with subdivision plates, or trapezoidal ribs may be added inside the bulkhead to increase the rigidity of the concrete ballast tank structure 2 . It is also possible to solve the connection problem between the concrete ballast tank structure 2 and the cylindrical foundation 1 by setting an extended annular steel rib plate around the cylindrical foundation 1 and inserting the concrete ballast tank structure 2. This connection method can effectively Avoid the stress concentration phenomenon of the connection nodes in the past, and improve the overall rigidity of the structure.

The vertical concrete connector 3 is a cuboid sheet structure arranged vertically, the height is usually consistent with the height of the concrete ballast tank structure 2 and the range is 4-6m, and the thickness is 0.5m-1.5m. The specific size can be adjusted according to the actual project . A vertical concrete connector 3 is connected between every two concrete ballast tank structures 2, and the vertical concrete connector 3 is on the same plane as the central axis of the two concrete ballast tank structures 2 connected, and the vertical The upper and lower sides of the concrete connector 3 are respectively flush with the upper and lower surfaces of the concrete ballast tank structure 2 .

The setting of the concrete ballast tank structure 2, the vertical concrete connector 3 and the concrete connecting bottom plate 7 further improves the integrity of the three cylindrical foundations 1, which is conducive to improving the actual construction quality, and makes the interaction between the three cylindrical foundations A group effect is generated, and the use of the group effect among the three cylindrical foundations can avoid excessive differences in internal force among the three cylindrical foundations, thereby reducing the uneven settlement of the entire foundation structure system.

(4) After the maintenance of the concrete ballast tank structure 2 and the vertical concrete connector 3 is completed and the strength requirements of the design are reached, formwork is set up on the upper part of the concrete connection bottom plate 7, steel bars are bound and concrete is poured, and the concrete column 4 and the oblique thin-slice type are carried out. Construction of variable cross-section concrete structure 5.

The concrete column 4 is a cylindrical concrete structure with an outer diameter of 5m and a height of 20m, and steel bars can be arranged inside. The concrete column 4 is set at the center of the triangle formed by the three cylindrical foundations 1, and its bottom is connected to the upper surface of the concrete connecting bottom plate 7. Its outer diameter ranges from 4 to 6 m and its height ranges from 10 to 20 m.

Three oblique thin-section variable-section concrete structures 5 are respectively connected between each concrete ballast tank structure 2 and the concrete column 4, and each oblique thin-section variable-section concrete structure 5 is connected to the concrete ballast tank structure The central axis of 2 and the central axis of concrete column 4 are on the same plane. The angle between every two adjacent oblique thin-slice variable-section concrete structures 5 is 120 degrees. The bottom of the oblique thin-slice variable-section concrete structure 5 is connected to the concrete connecting bottom plate 7, and its height is the same as that of the concrete column 4, which is 20m in height and 0.5m to 2m in thickness; the upper section length of the oblique thin-slice variable-section concrete structure 5 is 2.5m, its cross-sectional length is continuously changing from the concrete connecting roof 6 to the edge of the concrete ballast tank structure 2 (inside).

The combination of concrete column 4 and three oblique thin-slice variable-section concrete structures 5 forms a structural force system similar to special-shaped columns, which can effectively resist the large bending moment transmitted from the upper part, and approximately convert it into tensile force at the cylindrical foundation 1 and pressure to maximize the bearing capacity and group effect of the cylindrical foundation. This structure saves materials and reduces the cost, which is very economical.

(5) After the maintenance of the concrete column 4 and the oblique thin-section variable-section concrete structure 5 is completed and the strength requirements of the design are reached, formwork is placed on the top of the concrete column 4 and the oblique thin-section variable-section concrete structure 5, steel bars are bound and concrete is poured, Carry out the construction of the concrete connection roof 6, as shown in Figure 1 and Figure 2 after completion.

The concrete connecting roof 6 is a circular concrete slab structure with a diameter of 10m and a thickness of 0.5m. The concrete connecting top plate 6 has a diameter of 8-15m and a thickness of 0.5m-2m. The concrete connecting top plate 6 is arranged on the top of the concrete column 4 and the three oblique thin-section variable-section concrete structures 5, and is used to connect the upper structure such as an offshore wind turbine tower and an offshore platform through a connecting structure such as a flange, and connect the upper part The load and bending moment transmitted by the structure are transmitted downward to the concrete support structure, and then transmitted to the three cylindrical foundations 1 .

(6) After the concrete connection roof 6 is cured and reaches the design strength requirements, the tower and fan are assembled on the top of the concrete connection roof 6 to form a wind turbine with three cylindrical foundations and concrete support structures, as shown in Figure 3.

(7) Use a crane or a slideway to move the three cylindrical foundations and the wind power generator with the concrete support structure into the water, pass the air in the hollow part of the cylindrical foundation 1, or connect the air blowing pipe to the hollow of the cylindrical foundation 1 through the pipe joint Partial injection of high-pressure gas provides buoyancy, so that the wind turbines with three cylindrical foundations and concrete support structures float on the water.

(8) Use tugboats to tow the wind turbines with three cylindrical foundations and concrete support structures to the designated construction site, and add temporary covers to each concrete ballast tank structure 2 before towage to prevent water from splashing in and affecting Towing stability.

(9) Take out the air in the hollow part of the cylindrical foundation 1 through the pipe joint or release the high-pressure gas in the hollow part of the cylindrical foundation 1, that is, the sinking process of deflation, so that the cylindrical foundation 1 slowly and gradually sinks to the mud surface , and then connect the suction pipe through the pipe joint to extract the water body in the cylindrical foundation 1, and realize the negative pressure in the cylinder through the extraction of the water body, that is, the negative pressure sinking process, so that it sinks in place.

When the cylindrical foundation 1 tilts during the sinking process, the pump system applies different positive pressures in each sub-chamber for leveling.

(10) After the cylindrical foundation 1 sinks into place, put ballast in the concrete ballast tank structure 2, and the construction is completed.

The ballast can be fine sand, gravel or cement mortar.

Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art Under the enlightenment of the present invention, without departing from the purpose of the present invention and the scope of protection of the claims, personnel can also make specific changes in many forms, and these all belong to the protection scope of the present invention.

Claims (10)

1. the whole machine construction method of wind-powered electricity generation of a kind of three bucket foundations and concrete support structure, it is characterised in that according to as follows Step is carried out：

(1) three bucket foundations of land fabrication, the bucket foundation is internally provided with subdivision room, and the bucket foundation top cover is set There is the preformed hole for pipe laying joint；

(2) the prefabricated completion of the bucket foundation and after checking that air-tightness meets design requirement, by three bucket foundations according to Its central point line constitutes a triangle and is arranged, and formwork, assembling reinforcement and is poured between three bucket foundations Concrete is built, the construction of the concrete connecting bottom board is carried out；

With the top surface of the bucket foundation at grade, it is arranged on described in three for the bottom surface of the concrete connecting bottom board Between bucket foundation and with the central point line of three bucket foundations be profile；

(3) after the concrete connecting bottom board conserves the intensity requirement for completing and reaching design, on each described bucket foundation Portion carries out the construction of concrete ballast cabin structure using its top board as bottom surface template, and each two concrete ballast cabin structure it Between carry out the construction of vertical concrete connector, three concrete ballast cabin structures and three vertical concrete connections Part is while formwork, assembling reinforcement and casting concrete；In the cylinder before pouring the concrete of the concrete ballast cabin structure Pipe laying joint in the preformed hole of type basis top cover, the pipe joint top stretches out in the concrete ballast cabin structure bottom Face, bottom stretch out in the bucket foundation top surface；

The concrete ballast cabin structure is the tubular structure of opening upwards, the central shaft of each concrete ballast cabin structure The central shaft of the connected bucket foundation is conllinear；

The vertical concrete connector is connected between concrete ballast cabin structure described in each two, and the vertical concrete connects Fitting is coplanar with the central shaft of two concrete ballast cabin structures being connected；

(4) the concrete ballast cabin structure and the vertical concrete connector maintenance is completed and reaches the intensity requirement of design Afterwards, in the concrete connecting bottom board top formwork, assembling reinforcement and casting concrete, concrete column and oblique sheet type are carried out The construction of variable cross-section concrete structure；

The concrete column is located at three triangle heart positions of the bucket foundation；

The oblique sheet type variable cross-section concrete structure is connected to the concrete column with each concrete ballast cabin knot Between structure, bottom extends to the concrete connecting bottom board, top and extends to concrete connection top board, and its cross-sectional length is by described It is in consecutive variations that concrete connects top board to the concrete ballast cabin structure edge；

(5) concrete column and the maintenance of oblique sheet type variable cross-section concrete structure is completed and reaches the intensity requirement of design Afterwards, formwork, assembling reinforcement and casting concrete at the top of the concrete column and oblique sheet type variable cross-section concrete structure, enter Row concrete connects the construction of top board；

(6) after the maintenance of concrete connection top board is completed and reaches design strength requirement, on concrete connection top board Portion assembles tower and blower fan, forms the whole machine of wind-powered electricity generation of three bucket foundations and concrete support structure；

(7) led in the whole machine immigration water of the wind-powered electricity generation of three bucket foundations and concrete support structure using loop wheel machine or slideway The air for crossing the bucket foundation hollow space provides buoyancy or connects gas blow pipe to the cartridge type base from the pipe joint Plinth hollow space injects gases at high pressure and provides buoyancy, makes the whole machine of wind-powered electricity generation of three bucket foundations and concrete support structure Swim on the water surface；

(8) the whole machine of wind-powered electricity generation of three bucket foundations and concrete support structure is dragged to specified job location using tugboat；

(9) air of the bucket foundation hollow space is taken out by the pipe joint or bleeds off the bucket foundation hollow bulb The gases at high pressure for dividing, make the bucket foundation gradually sink down into mud face, and then connecting drinking-water pipe by the pipe joint extracts out Water body in the bucket foundation, realizes that negative pressure sinks to making its in place；In sinking watching when inclining occurs in the bucket foundation, Applying normal pressure in different cabins to each subdivision room by pumping system carries out leveling；

(10) after the barrel-shaped foundation sinking is in place, to delivering ballast in the concrete ballast cabin structure, construction is finished.

2. the whole machine construction method of wind-powered electricity generation of a kind of three bucket foundations according to claim 1 and concrete support structure, Characterized in that, the bucket foundation is circle, its external diameter is 10~20m, is highly 4~6m.

3. the whole machine construction method of wind-powered electricity generation of a kind of three bucket foundations according to claim 1 and concrete support structure, Characterized in that, the clear distance between bucket foundation described in each two is 1~3 times of the bucket foundation external diameter.

4. the whole machine construction method of wind-powered electricity generation of a kind of three bucket foundations according to claim 1 and concrete support structure, Characterized in that, the concrete ballast cabin structure is circle, its external diameter is 10~20m, is highly 4~6m.

5. the whole machine construction method of wind-powered electricity generation of a kind of three bucket foundations according to claim 1 and concrete support structure, Characterized in that, the bucket foundation periphery sets the steel floor that upwardly extends and inserts the concrete ballast cabin structure.

6. the whole machine construction method of wind-powered electricity generation of a kind of three bucket foundations according to claim 1 and concrete support structure, Characterized in that, the pipe joint is evenly arranged in the concrete ballast cabin structure bottom surface, its a diameter of 5~200mm, number Measure is 10~100.

7. the whole machine construction method of wind-powered electricity generation of a kind of three bucket foundations according to claim 1 and concrete support structure, Characterized in that, the height of the vertical concrete connector is with the highly consistent and scope of the concrete ballast cabin structure 4~6m, thickness is 0.5m~1.5m；Tied with the concrete ballast cabin respectively on the both sides up and down of the vertical concrete connector The upper and lower surface of structure is flushed.

8. the whole machine construction method of wind-powered electricity generation of a kind of three bucket foundations according to claim 1 and concrete support structure, Characterized in that, the thickness of the concrete connecting bottom board and concrete connection top board is 0.5m~2m.

9. the whole machine construction method of wind-powered electricity generation of a kind of three bucket foundations according to claim 1 and concrete support structure, Characterized in that, the height of the concrete column is 10~20m.

10. the whole machine construction method of wind-powered electricity generation of a kind of three bucket foundations according to claim 1 and concrete support structure, Characterized in that, the oblique sheet type variable cross-section concrete structure includes 3~12, the concrete column is described mixed with each Solidifying soil pressure is connected with the 1-4 oblique sheet type variable cross-section concrete structure between carrying cabin structure；The oblique sheet type becomes The thickness of section concrete structure is 0.5m~2m.