Assembled wind power tower foundation and manufacturing method

Abstract

The present invention provides an assembled wind power tower foundation, including a base plate, a cap, foundation piles, an annular steel connector and an upper tower structure, wherein the lower end surface of the base plate is connected to the foundation piles, the foundation piles are driven into the ground for fixing, the cap is installed on the base plate, a plurality of evenly arranged first embedded screws are arranged on the upper end surface of the cap, a plurality of first embedded screws surround the axis of the cap in a ring shape, the annular steel connector is installed on the upper end surface of the cap through the first embedded screws, the cap is coaxially arranged with the annular steel connector, and the upper tower structure is installed on the upper end surface of the annular steel connector. The components of the foundation are prefabricated and connected by bolts, the components can be disassembled, replaced and reused, which saves material consumption and is green and environmentally friendly; the foundation structure has a reasonable force form, is convenient to transport, has low difficulty and is quick to install on site, improves construction efficiency and saves costs.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to an assembled wind power tower foundation and a manufacturing method thereof. Background Art

[0002] Wind power is a non-polluting, renewable, clean energy source. Wind farms have high power generation, stable wind turbine operation, and mature manufacturing technology, and have been widely used in recent years.

[0003] Wind turbine towers are tall structures that bear large horizontal and vertical loads, so the foundation is large and the material consumption is also large. Traditional cast-in-place reinforced concrete foundations use a lot of concrete, have dense steel bar spacing, are difficult to pour, are difficult to construct on site, have low efficiency, and have a long construction period. At the same time, they are costly, cannot be reused, and are not environmentally friendly, so it is necessary to improve and innovate the wind turbine foundation structure system. Summary of the invention

[0004] In view of this, the problem to be solved by the present invention is to provide an assembled wind turbine tower foundation, the components of which are prefabricated and connected by bolts. The components can be disassembled, replaced and reused, which saves material usage and is green and environmentally friendly. The foundation is easy to transport and has low and quick on-site installation difficulty, which improves construction efficiency and saves costs.

[0005] The present invention solves the above technical problems through the following technical means: The present invention provides an assembled wind power tower foundation, including a base plate, a pedestal, foundation piles, annular steel connecting parts and an upper tower structure, wherein the lower end surface of the base plate is connected to the foundation piles, the foundation piles are driven into the ground for fixation, the pedestal is installed on the base plate, and a plurality of evenly arranged first embedded screws are arranged on the upper end surface of the pedestal, and a plurality of first embedded screws surround the axis of the pedestal in a ring shape, the annular steel connecting part is installed on the upper end surface of the pedestal through the first embedded screws, the pedestal and the annular steel connecting part are coaxially arranged, and the upper tower structure is installed on the upper end surface of the annular steel connecting part.

[0006] Furthermore, it also includes a foundation beam, a plurality of second embedded screws are arranged on the upper end surface of the base plate, and the plurality of second embedded screws are arranged in multiple rows along the radial direction of the base plate, and second bolt holes are arranged on the foundation beam, and the second bolt holes match each row of second embedded screws. The lower side of the foundation beam is installed on the upper end surface of the base plate through the second embedded screws, and the end of the foundation beam close to the center of the base plate is installed on the pedestal. The foundation beam is provided with multiple pieces, and the plurality of foundation beams are installed in a circular array on the base plate.

[0007] Furthermore, the foundation beam is a variable cross-section structure in the length direction, the upper end surface of the foundation beam includes a horizontal surface and an inclined surface, one end of the horizontal surface of the foundation beam is connected to the pedestal, the second bolt hole is arranged on the inclined surface, and the foundation beams are no less than 4.

[0008] Furthermore, an installation opening is provided on the pedestal, and the installation opening matches one end of the horizontal plane of the foundation beam. After the horizontal plane end of the foundation beam is inserted into the installation opening, it is combined with the pedestal as a whole. The horizontal plane of the foundation beam is flush with the upper end surface of the pedestal, and the first embedded screw at the installation opening position is embedded in one end of the horizontal plane of the foundation beam and is evenly arranged with the first embedded screw on the pedestal.

[0009] Furthermore, a plurality of third embedded screws are arranged on the base plate, and the plurality of third embedded screws are arranged in a ring around the axis of the base plate, and a plurality of third bolt holes corresponding to the third embedded screws are arranged on the base plate, and the radius of the ring surrounded by the third bolt holes is smaller than the radius of the ring surrounded by the first embedded screws.

[0010] Furthermore, the annular steel connecting member includes an annular upper wing plate, an annular web plate, an annular lower wing plate and reinforcing ribs. The annular upper wing plate, the annular web plate and the annular lower wing plate are coaxially arranged. The reinforcing ribs are arranged between the annular upper wing plate and the annular lower wing plate. One end of the reinforcing rib is vertically connected to the outer wall of the annular web plate.

[0011] Furthermore, the outer wall diameter of the annular upper wing plate is smaller than the outer wall diameter of the annular lower wing plate, the inner wall diameter of the annular upper wing plate is equal to the inner wall diameter of the annular lower wing plate, and the reinforcing rib is in a right-angled trapezoidal shape.

[0012] Furthermore, the annular upper wing plate is composed of multiple arc-shaped upper wing plate modules, the annular lower wing plate is composed of multiple arc-shaped lower wing plate modules, the web is composed of multiple arc-shaped web modules, one upper wing plate module, one lower wing plate module and multiple stiffening ribs constitute a connecting piece module, and multiple connecting piece modules constitute an annular steel connecting piece.

[0013] Furthermore, a plurality of fourth bolt holes are arranged on the reinforcing ribs at both ends of the connecting member module, and the positions of the third bolt holes on different reinforcing ribs correspond to each other. A plurality of fifth bolt holes and first bolt holes are respectively arranged on the upper wing panel module and the lower wing panel module. The first bolt hole on the lower wing panel module matches the first screw on the base, and the fifth bolt hole on the upper wing panel module corresponds to the prefabricated screw on the upper tower structure. The fourth bolt holes are arranged on adjacent reinforcing ribs of adjacent connecting member modules.

[0014] The present invention also provides a method for manufacturing an assembled wind power tower foundation, comprising the following steps:

[0015] S1. Complete the foundation piles in the factory, embed the screws on the upper tower structure and the cap as required, and complete the component processing. Reserve the second bolt hole and embed the first embedded screw on the foundation beam as required, and complete the component processing;

[0016] S2. Complete the upper wing plate module, the lower wing plate module and the stiffening ribs in the factory, and reserve the second bolt hole, the first bolt hole and the fourth bolt hole as required, then weld the upper wing plate module, the lower wing plate module and the stiffening ribs to form a connector module, and reserve the fourth bolt hole on the first and last stiffening ribs on the connecting frame module;

[0017] S3. Complete the construction of foundation piles on site, drive the foundation piles into the ground and tighten them, and complete the construction of the embedded second embedded screw rods as required, and finally cast the circular reinforced concrete bottom plate in situ, so that the concrete bottom plate and the foundation piles form a whole;

[0018] S4. Pass the second embedded screw on the bottom plate through the second bolt hole reserved on the foundation beam to connect the two, and fix them with nuts;

[0019] S5, installing the cap on the bottom plate, and making the cap coaxial with the bottom plate, installing the foundation beam on the installation opening of the cap, and fixing it to the bottom plate through the second embedded screw, and then connecting the foundation beam and the cap by pouring concrete at the joint between the foundation beam and the installation opening to form a whole;

[0020] S6, installing multiple connector modules on the platform to form an annular rigid connector and fastening it to the platform through nuts, and fastening adjacent connector modules through bolts;

[0021] S7. Pass the embedded screw on the upper tower structure through the fifth bolt hole reserved on the annular upper wing plate and use nuts to fix it to the annular steel connector to complete the entire construction process.

[0022] It can be seen from the above technical scheme that the present invention has the following advantages compared with the prior art: (1) Except for the circular reinforced concrete base plate, all components can be prefabricated in the factory in advance and directly assembled on site, which is convenient for construction and high in production efficiency.

[0023] (2) Both the foundation beam and the annular pedestal are made of a composite structural system such as steel-concrete. Compared with traditional reinforced concrete structures, they have more obvious advantages and can withstand large loads transmitted from the upper part. At the same time, the force transmission path of the foundation structure is clear and the force form is reasonable. Under the same load, the amount of material required is lower.

[0024] (3) The transportation and installation of the connector modules are extremely convenient. High-strength bolts are used on site to directly connect them into circular steel connectors, avoiding on-site welding operations. At the same time, the construction difficulty is low and the speed is fast.

[0025] (4) Bolt holes are reserved on the prefabricated annular steel connector. The upper tower structure and the annular foundation pedestal are connected to the prefabricated annular steel connector through their own pre-buried screws. The installation is simple and the construction is fast, which can greatly shorten the overall construction period, improve efficiency and save costs.

[0026] (5) The foundation uses a large number of bolts for connection, and the components can be disassembled, replaced and reused, which can greatly save costs, improve material utilization efficiency, and is green and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0028] Figure 1 It is a three-dimensional structural diagram of the assembled wind power tower foundation of the present invention;

[0029] Figure 2 It is a three-dimensional structural diagram of the upper tower structure of the assembled wind power tower foundation of the present invention;

[0030] Figure 3 It is a three-dimensional structural diagram of the connector module of the assembled wind power tower foundation of the present invention;

[0031] Figure 4 It is a three-dimensional structural diagram of the upper wing plate module of the assembled wind power tower foundation of the present invention;

[0032] Figure 5 It is a three-dimensional structural diagram of the web of the assembled wind power tower foundation of the present invention;

[0033] Figure 6 It is a three-dimensional structural diagram of the foundation beam of the assembled wind power tower foundation of the present invention;

[0034] Figure 7 It is a three-dimensional structural diagram of the bottom plate of the assembled wind power tower foundation of the present invention;

[0035] Figure 8 It is a schematic diagram of the installation of the foundation of the assembled wind power tower of the present invention;

[0036] Fig. 9 It is a partial schematic diagram of the foundation of the assembled wind power tower of the present invention;

[0037] Fig.10 It is a three-dimensional structural diagram of the lower wing plate module of the assembled wind power tower foundation of the present invention.

[0038] Reference numerals:

[0039] 1-upper tower structure; 2-annular steel connector; 3-foundation beam; 4-cap; 5-bottom plate; 6-foundation pile; 21-upper wing module; 22-lower wing module; 23-stiffening rib; 24-web; 31-horizontal plane; 32-inclined plane; 33-second bolt hole; 41-first embedded screw; 42-third bolt hole; 43-installation port; 51-second embedded screw; 52-third embedded screw; 231-fourth bolt hole; 211-fifth bolt hole; 221-first bolt hole. DETAILED DESCRIPTION

[0040] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0041] See also Figures 1 to 10 The present invention provides an assembled wind power tower foundation, including a base plate 5, a cap 4, a foundation pile 6, an annular steel connector 2 and an upper tower structure 1. The lower end surface of the base plate 5 is connected to the foundation pile 6, and the foundation pile 6 is driven into the ground for fixing. The cap 4 is installed on the base plate 5. A plurality of evenly arranged first embedded screws 41 are arranged on the upper end surface of the cap 4. The plurality of first embedded screws 41 surround the axis of the cap 4 in a ring shape. The annular steel connector 2 is installed on the upper end surface of the cap 4 through the first embedded screws 41. The cap 4 is coaxially arranged with the annular steel connector 2. The upper tower structure 1 is installed on the upper end surface of the annular steel connector 2. The components of the foundation are prefabricated and connected by bolts. The components can be disassembled, replaced and reused, which saves material consumption and is green and environmentally friendly. The foundation structure is easy to transport, and the on-site installation is easy and fast, which improves construction efficiency and saves costs. Except for the circular reinforced concrete base plate 5, all components can be prefabricated in advance in the factory and assembled directly on site, which is convenient for construction and has high production efficiency. The foundation piles can be prefabricated in a factory and then driven directly into the ground at the construction site and cast together with the base plate, or holes can be drilled on site and a steel cage can be placed to directly cast the foundation piles and the base plate.

[0042] As a further improvement of the above technical solution, it also includes a foundation beam 3, a plurality of second embedded screws 51 are arranged on the upper end surface of the bottom plate 5, and the plurality of second embedded screws 51 are arranged in multiple rows along the radial direction of the bottom plate 5, and a second bolt hole 33 is arranged on the foundation beam 3, and the second bolt hole 33 matches each row of second embedded screws 51. The lower side of the foundation beam 3 is installed on the upper end surface of the bottom plate 5 through the second embedded screw 51, and the end of the foundation beam 3 close to the center of the bottom plate 5 is installed on the pedestal 4. The foundation beam 3 is provided with multiple pieces, and the plurality of foundation beams 3 are installed in a circumferential array on the bottom plate 5. The foundation beam 3 is arranged and fixed to the pedestal 4 and the bottom plate 5 at the same time, so as to increase the force points between the pedestal 4 and the bottom plate 5, thereby increasing its force strength.

[0043] As a further improvement of the above technical solution, the foundation beam 3 is a variable cross-section structure in the length direction, the upper end surface of the foundation beam 3 includes a horizontal surface 31 and an inclined surface 32, one end of the horizontal surface 31 of the foundation beam 3 is connected to the cap 4, the second bolt holes 33 are arranged on the inclined surface 32, and there are no less than 4 foundation beams 3. Setting the foundation beam 3 as a variable cross-section structure reduces the volume and weight of the foundation beam 3, reduces the material used for the foundation beam 3, and saves costs.

[0044] As a further improvement of the above technical solution, the cap 4 is provided with an installation opening 43, the installation opening 43 matches one end of the horizontal plane 31 of the foundation beam 3, and one end of the horizontal plane 31 of the foundation beam 3 is inserted into the installation opening 43 and cast and combined with the cap 4 as a whole, the horizontal plane 31 of the foundation beam 3 is flush with the upper end surface of the cap 4, and the first embedded screw 41 at the position of the installation opening 43 is embedded at one end of the horizontal plane 31 of the foundation beam 3 and is evenly arranged with the first embedded screw 41 on the cap 4. The installation opening 43 is provided on the cap 4, and the foundation beam 3 is cast and combined with the cap 4 at the position of the installation opening 43 to form a whole. Preferably, steel bars are reserved at the position of the installation opening 43, and grooves corresponding to the steel bars are reserved at the corresponding position of the foundation beam 3, so that they can be better combined into one after casting. The foundation beam 3 and the annular pedestal 4 both adopt a composite structural system such as steel-concrete. Compared with the traditional reinforced concrete structure, its advantages are more obvious. It can withstand the large load transmitted from the upper part. At the same time, the foundation structure has a clear force transmission path and a reasonable force form; the required material consumption is lower under the same load.

[0045] As a further improvement of the above technical solution, the base plate 5 is also provided with a plurality of third embedded screws 52, which are arranged in a ring around the axis of the base plate 5, and the cap 4 is provided with a plurality of third bolt holes 42 corresponding to the third embedded screws 52, and the radius of the ring surrounded by the third bolt holes 42 is smaller than the radius of the ring surrounded by the first embedded screws 41. The third bolt holes 42 are arranged on the inner ring of the cap 4 to connect the cap 4 with the base plate 5, and the first embedded screws 41 are embedded in the outer ring of the cap 4 to connect with the annular steel connector 2, and the third embedded screws 52 are located inside the annular steel connector 2 to prevent interference or inconvenience in installing the nut.

[0046] As a further improvement of the above technical solution, the annular steel connecting member 2 includes an annular upper wing plate, an annular web 24, an annular lower wing plate and a reinforcing rib. The annular upper wing plate, the annular web 24 and the annular lower wing plate are coaxially arranged, and the reinforcing rib is arranged between the annular upper wing plate and the annular lower wing plate, and one end of the reinforcing rib is vertically connected to the outer wall of the annular web 24.

[0047] As a further improvement of the above technical solution, the outer wall diameter of the annular upper wing plate is smaller than the outer wall diameter of the annular lower wing plate, the inner wall diameter of the annular upper wing plate is equal to the inner wall diameter of the annular lower wing plate, and the reinforcing rib is a right-angled trapezoidal shape. The cross section of the annular steel connector 2 is set to a trapezoidal structure so as to meet the strength requirements while reducing the amount of material used.

[0048] As a further improvement of the above technical solution, the annular upper wing plate is composed of multiple arc-shaped upper wing plate modules 21, the annular lower wing plate is composed of multiple arc-shaped lower wing plate modules 22, the web 24 is composed of multiple arc-shaped web 24 modules, one upper wing plate module 21, one lower wing plate module 22 and multiple stiffening ribs constitute a connector module, and multiple connector modules constitute an annular steel connector 2. The annular steel connector 2 is arranged as multiple connector modules for easy segmented transportation, and high-strength bolts are used on site to directly connect the prefabricated annular steel connector 2, avoiding on-site welding operations, while the construction difficulty is low and the speed is fast.

[0049] As a further improvement of the above technical solution, a plurality of fourth bolt holes 231 are arranged on the reinforcing ribs at both ends of the connector module, and the third bolt holes 42 on different reinforcing ribs are arranged in corresponding positions. The upper wing module 21 and the lower wing module 22 are respectively provided with a plurality of fifth bolt holes 211 and first bolt holes 221. The first bolt hole 221 on the lower wing module 22 matches the first screw on the pedestal 4. The fifth bolt hole 211 on the upper wing module 21 corresponds to the prefabricated screw on the upper tower structure 1. The fourth bolt hole 231 is arranged on the adjacent reinforcing ribs of the adjacent connector module. Bolt holes are reserved on the prefabricated annular steel connector 2. The upper tower structure 1 and the annular foundation pedestal 4 are connected to the prefabricated annular steel connector 2 through their own pre-buried screws. The installation is simple and the construction is fast. The overall construction period can be greatly shortened, the efficiency is improved, and the cost is saved. The first embedded screw rod 41 , the second embedded screw rod 51 and the third embedded screw rod 52 are respectively welded to the steel bars in the reinforced concrete at corresponding positions.

[0050] The present invention also provides a method for manufacturing an assembled wind power tower foundation, comprising the following steps:

[0051] S1. Complete the foundation pile 6 in the factory, embed the screw rods on the upper tower structure 1 and the cap 4 as required, and complete the component processing, reserve the second bolt hole 33 and embed the first embedded screw rod 41 on the foundation beam 3 as required, and complete the component processing;

[0052] S2. Complete the upper wing plate module 21, the lower wing plate module 22 and the stiffening rib 23 in the factory, and reserve the second bolt hole 33, the first bolt hole 221 and the fourth bolt hole 231 as required, then weld the upper wing plate module 21, the lower wing plate module 22 and the stiffening rib 23 to form a connector module, and reserve the fourth bolt hole 231 on the first and last stiffening ribs 23 on the connecting frame module;

[0053] S3, completing the construction of the foundation pile 6 on site, driving the foundation pile 6 into the ground and fastening it, and completing the construction of the pre-buried second pre-buried screw 51 as required, and finally casting the circular reinforced concrete base plate 5 in situ, so that the concrete base plate 5 and the foundation pile 6 form a whole;

[0054] S4, pass the second embedded screw 51 on the base plate 5 through the second bolt hole 33 reserved on the foundation beam 3 to connect the two, and fix them with nuts;

[0055] S5, install the cap 4 on the bottom plate 5, and make the cap 4 and the bottom plate 5 coaxial, install the foundation beam 3 on the installation opening 43 of the cap 4, and fix it to the bottom plate 5 through the second embedded screw 51, and then connect the foundation beam 3 and the cap 4 through the joint of the foundation beam 3 and the installation opening 43 to form a whole;

[0056] S6, installing multiple connector modules on the base 4 to form an annular rigid connector, and fastening them to the base 4 through nuts, and fastening adjacent connector modules through bolts;

[0057] S7. Pass the embedded screws on the upper tower structure 1 through the fifth bolt holes 211 reserved on the annular upper wing plate and use nuts to fix them to the annular steel connector 2, completing the entire construction process.

[0058] During the on-site construction process, bolt installation and connection are mostly adopted. The components can be disassembled, replaced and reused, which saves material consumption. At the same time, it is green and environmentally friendly. The on-site installation difficulty is low, the construction is fast, the construction efficiency is improved, the cost is saved, and it has a very broad engineering application prospect.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An assembled wind power tower foundation, characterized in that: The invention comprises a base plate (5), a capping platform (4), a foundation pile (6), an annular steel connecting member (2) and an upper tower structure (1), wherein the lower end surface of the base plate (5) is connected to the foundation pile (6), the foundation pile (6) is driven into the ground for fixing, the capping platform (4) is mounted on the base plate (5), a plurality of evenly arranged first embedded screws (41) are arranged on the upper end surface of the capping platform (4), the plurality of first embedded screws (41) surround the axis of the capping platform (4) in a ring shape, the annular steel connecting member (2) is mounted on the upper end surface of the capping platform (4) through the first embedded screws (41), the capping platform (4) and the annular steel connecting member (2) are arranged coaxially, and the upper tower structure (1) is mounted on the annular steel connecting member (2). The upper end surface also includes a foundation beam (3), the upper end surface of the base plate (5) is provided with a plurality of second embedded screw rods (51), the plurality of second embedded screw rods (51) are arranged in a plurality of rows along the radial direction of the base plate (5), the foundation beam (3) is provided with second bolt holes (33), the second bolt holes (33) match with each row of second embedded screw rods (51), the lower side of the foundation beam (3) is mounted on the upper end surface of the base plate (5) through the second embedded screw rods (51), one end of the foundation beam (3) close to the center of the base plate (5) is mounted on the pedestal (4), the foundation beam (3) is provided with a plurality of pieces, the plurality of foundation beams (3) are arranged in a circular array on the base plate (5), and the foundation beam (3) is arranged in a longitudinal direction. The invention is a variable cross-section structure, wherein the upper end surface of the foundation beam (3) comprises a horizontal surface (31) and an inclined surface (32), one end of the horizontal surface (31) of the foundation beam (3) is connected to the pedestal (4), the second bolt holes (33) are arranged on the inclined surface (32), the foundation beam (3) is not less than 4, the pedestal is provided with a mounting opening, the mounting opening matches the horizontal surface end of the foundation beam, the horizontal surface end of the foundation beam is inserted into the mounting opening and is integrated with the pedestal, the horizontal surface of the foundation beam is flush with the upper end surface of the pedestal, the first embedded screw at the mounting opening is embedded in the horizontal surface end of the foundation beam and is evenly arranged with the first embedded screw on the pedestal, and the bottom plate (5) is also provided with a plurality of A plurality of third embedded screws (52) are arranged in a ring around the axis of the base plate (5), and a plurality of third embedded screws (52) are arranged on the base plate (4) to form a ring. A plurality of third bolt holes (42) corresponding to the third embedded screws (52) are arranged on the base plate (4), and the radius of the ring surrounded by the third bolt holes (42) is smaller than the radius of the ring surrounded by the first embedded screws (41). The annular steel connecting member (2) comprises an annular upper wing plate, an annular web (24), an annular lower wing plate and a reinforcing rib. The annular upper wing plate and the annular web (24) are arranged coaxially with the annular lower wing plate. The reinforcing rib is arranged between the annular upper wing plate and the annular lower wing plate, and one end of the reinforcing rib is vertically connected to the outer wall of the annular web (24).

2. The assembled wind turbine tower foundation according to claim 1, characterized in that: The outer wall diameter of the annular upper wing plate is smaller than the outer wall diameter of the annular lower wing plate, the inner wall diameter of the annular upper wing plate is equal to the inner wall diameter of the annular lower wing plate, and the reinforcing rib is in a right-angled trapezoidal shape.

3. The assembled wind turbine tower foundation according to claim 2 is characterized in that: The annular upper wing plate is composed of a plurality of arc-shaped upper wing plate modules (21), the annular lower wing plate is composed of a plurality of arc-shaped lower wing plate modules (22), the web plate (24) is composed of a plurality of arc-shaped web plate (24) modules, one upper wing plate module (21), one lower wing plate module (22) and a plurality of stiffening ribs constitute a connector module, and the plurality of connector modules constitute an annular steel connector (2).

4. The assembled wind power tower foundation according to claim 3 is characterized in that: A plurality of fourth bolt holes (231) are arranged on the reinforcing ribs at both ends of the connector module, and the third bolt holes (42) on different reinforcing ribs are arranged at corresponding positions. A plurality of fifth bolt holes (211) and a first bolt hole (221) are arranged on the upper wing panel module (21) and the lower wing panel module (22), respectively. The first bolt hole (221) on the lower wing panel module (22) matches the first screw on the pedestal (4), and the fifth bolt hole (211) on the upper wing panel module (21) corresponds to the prefabricated screw on the upper tower structure (1). The fourth bolt hole (231) is arranged on adjacent reinforcing ribs of adjacent connector modules.

5. A method for manufacturing an assembled wind power tower foundation according to claim 4, characterized in that: The steps include: S1. Complete the foundation piles (6) in the factory, embed the screw rods on the upper tower structure (1) and the cap (4) as required, and complete the component processing, reserve the second bolt hole (33) and embed the first embedded screw rod (41) on the foundation beam (3) as required, and complete the component processing; S2, completing the upper wing plate module (21), the lower wing plate module (22) and the stiffening rib (23) in the factory, and reserving the second bolt hole (33), the first bolt hole (221) and the fourth bolt hole (231) as required, then welding the upper wing plate module (21), the lower wing plate module (22) and the stiffening rib (23) to form a connector module, and reserving the fourth bolt hole (231) on the first and last stiffening ribs (23) on the connecting frame module; S3, completing the construction of the foundation pile (6) on site, driving the foundation pile (6) into the ground and fastening it, and completing the construction of the pre-buried second pre-buried screw (51) as required, and finally casting the circular reinforced concrete base plate (5) in situ, so that the concrete base plate (5) and the foundation pile (6) form a whole; S4, passing the second embedded screw rod (51) on the base plate (5) through the second bolt hole (33) reserved on the foundation beam (3) to connect the two, and fixing them with nuts; S5, installing the cap (4) on the base plate (5), and making the cap (4) and the base plate (5) coaxial, installing the foundation beam (3) on the installation opening (43) of the cap (4), and fixing it to the base plate (5) through the second embedded screw (51), and then connecting the foundation beam (3) and the cap (4) by pouring concrete at the joint between the foundation beam (3) and the installation opening (43) to form a whole; S6, installing a plurality of connector modules on the base (4) to form an annular rigid connector and fastening the connector to the base (4) via nuts, and fastening adjacent connector modules via bolts; S7. Pass the embedded screw on the upper tower structure (1) through the fifth bolt hole (211) reserved on the annular upper wing plate and use nuts to fix it to the annular steel connecting piece (2), completing the entire construction process.

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