A wind power foundation for shallow covering layer on soft foundation
By designing multiple foundation base mechanisms on the wind turbine foundation, combined with expansion components and limit anchor rods, the problem of wind turbine foundation deviation on soft foundation is solved, the stability and construction stability are improved, and a correction function is provided.
Patent Information
- Application Number
- CN202211522437.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-11-30
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2042-11-30
AI Technical Summary
Existing wind turbine foundations are prone to shifting when installed on soft foundations, leading to frequent construction problems, and the lack of limiting anchor rods results in insufficient stability.
Multiple foundation base mechanisms are used, each of which is equipped with a first and a second built-in expansion component. The contact area is expanded by driving the component, and the stability is improved by combining the limit anchor rod and the grouting pipe. A rotating blocking component is equipped to prevent sand and gravel from entering.
It effectively solves the problem of wind power foundation deviation on soft foundation, improves construction stability and comprehensive application scenarios, and has a correction function, making construction convenient and effective.
Smart Images
Figure CN115748799B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of wind power foundations, and in particular relates to a wind power foundation used on a shallow covering layer of a soft foundation. Background Art
[0002] Wind power equipment generally refers to equipment that utilizes wind energy for power generation or wind power generation. Wind power technology and equipment are an important component of the wind power industry and form the foundation and guarantee for its development. With the rapid development of wind power technology, the types of wind power equipment have also increased significantly. Wind power equipment can efficiently convert energy and is an indispensable part of the new energy era. For some smaller wind power equipment, the stable installation requires the design of a wind power foundation.
[0003] Some of the current wind turbine foundation structures generally have a fixed bottom area, and no limiting anchor rods are designed at the bottom. When the wind turbine foundation is installed on an ordinary hard surface foundation structure, construction can be carried out normally, but when encountering some areas with relatively weak base layers, construction cannot be carried out normally. The installed wind turbine foundation has insufficient contact area with the surface foundation and there are no limiting anchor rods, which causes the overall wind turbine foundation to easily shift after installation, resulting in frequent construction problems. After the shift occurs, it cannot be remedied, and the application effect is not good. In order to effectively solve the above problems, there is an urgent need for a wind turbine foundation for shallow covering layers of soft foundations. Summary of the Invention
[0004] In order to solve the above technical problems, the present invention proposes a wind power foundation for a shallow covering layer on a soft foundation.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a wind power foundation for a shallow covering layer of a soft foundation, comprising a foundation surface body, wherein the interior of the foundation surface body is provided with through holes, and the bottom of the foundation surface body is provided with multiple foundation base mechanisms, and the multiple foundation base mechanisms are used for the stable installation of the foundation.
[0006] As a further description of the above technical solution:
[0007] The foundation base mechanism includes a base body, a grouting pipe is fixedly installed on the top surface of the base body, the interior of the base body is a cavity, a foundation base plate is fixedly installed on the bottom of the base body, a plurality of limiting anchor rods are fixedly installed on the bottom surface of the foundation base plate, and the grouting pipe is embedded in the inner side of the through hole.
[0008] As a further description of the above technical solution:
[0009] The interior of the base chassis is provided with a plurality of inner receiving grooves, and the interiors of the plurality of inner receiving grooves are respectively provided with a first built-in expansion component and a second built-in expansion component, which are used for rapidly expanding the contact area of the bottom of the base body.
[0010] As a further description of the above technical solution:
[0011] The first built-in expansion component includes a first built-in expansion seat, a panel bottom groove is provided inside the first built-in expansion seat, a connecting spring is fixedly installed on the side wall of the panel bottom groove, one end of the connecting spring is fixedly installed with a bottom panel, and the bottom panel is slidably connected to the panel bottom groove.
[0012] As a further description of the above technical solution:
[0013] The second built-in expansion component includes an installation inner plate, which is fixedly installed on the inner wall of the top surface of the foundation base. Two outward push springs are fixedly installed on the outer wall of one side of the installation inner plate, and one end of the two outward push springs is fixedly installed with a second built-in expansion seat.
[0014] As a further description of the above technical solution:
[0015] The second built-in expansion seat is slidingly connected to the inner storage groove. A locking pin is fixedly installed on the outer walls on both sides of the second built-in expansion seat. A locking hole is provided on the outer wall of one side of the first built-in expansion seat. One end of the locking pin is locked into the locking hole. The volume of the second built-in expansion seat is larger than that of the first built-in expansion seat.
[0016] As a further description of the above technical solution:
[0017] A driving assembly is provided inside the foundation base chassis, and the driving assembly is used for driving and controlling the first built-in expansion assembly and the second built-in expansion assembly. The driving assembly includes a bidirectional stud and a longitudinal slide rod. The longitudinal slide rod is longitudinally fixedly mounted on the inner wall of the bottom surface of the foundation base chassis, and a longitudinal gear rod is slidably mounted on the outside of the longitudinal slide rod, and a set spring is fixedly mounted on the outside of the longitudinal slide rod.
[0018] As a further description of the above technical solution:
[0019] The sleeve spring is located above the longitudinal gear rod, and a pressure-bearing chassis is fixedly installed on the bottom end of the longitudinal gear rod. The pressure-bearing chassis is located outside the foundation base.
[0020] As a further description of the above technical solution:
[0021] A threaded hole is provided inside one side of the first built-in expansion seat, the bidirectional stud is threadedly connected to the threaded hole, an engaging gear sleeve is set at the middle position of the bidirectional stud, and the longitudinal gear rod and the engaging gear sleeve are meshed with each other.
[0022] Furthermore, a plurality of foundation mechanisms are designed in a supporting manner, and two groups of first built-in expansion components and second built-in expansion components are arranged in the foundation mechanism. First, the design of the plurality of foundation mechanisms can expand the contact range between the overall structure and the ground foundation, thereby avoiding excessive concentration of the wind turbine foundation in the installation area of the ground foundation, and can make the force on the overall wind turbine foundation evenly dispersed to the ground foundation after construction, thereby ensuring the stability of the overall wind turbine foundation structure. At the same time, during construction, the plurality of limiting anchor rods of the plurality of foundation mechanisms can be directly inserted into the soil layer, and the plurality of foundation mechanisms are limited. Secondly, when the ground base plate of the driving component contacts the soil layer, it will be squeezed inward, and the ground base plate can drive the longitudinal gear rod to move inward. The longitudinal gear rod can drive the bidirectional stud with the meshing gear sleeve to rotate through the meshing action. When the bidirectional stud rotates, since the outside of the bidirectional stud has double threads, it can The two first built-in expansion components installed on the bidirectional stud are driven out to expand the contact area between the foundation base mechanism and the soil layer. At the same time, after the first built-in expansion component is exported, the locking pin of the second built-in expansion component will disengage from the locking hole in the first built-in expansion component. At this time, the two outward push springs will push the second built-in expansion seat out, thereby realizing a secondary expansion of the contact area between the foundation base mechanism and the soil layer, thereby increasing the overall contact area between the foundation base mechanism and the soil layer, and cooperating with the limiting anchor rods, further improving the stability of the wind power foundation after construction, thereby effectively solving the problem of being unable to construct normally when encountering some areas with relatively weak foundation layers. The installed wind power foundation is prone to displacement after installation due to insufficient contact area with the surface foundation and the lack of any limiting anchor rods, resulting in frequent construction problems and improving the comprehensiveness of the application scenarios of the foundation structure.
[0023] As a further description of the above technical solution:
[0024] A top groove is provided on the top surface of the foundation surface body, and a rotation blocking assembly is rotatably installed inside the top groove. The rotation blocking assembly is used to block the through hole. The rotation blocking assembly includes a top plate, and a cross top groove is provided on the top surface of the top plate. A side mounting frame is fixedly installed on the side wall of the top plate, and a blocking cover is fixedly installed on one end of the side mounting frame. The blocking cover and the through hole are adapted to each other.
[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0026] 1. In the present invention, a plurality of foundation mechanisms are designed in a matching manner, and two groups of first built-in expansion components and second built-in expansion components are arranged in the foundation mechanism. First, the design of the plurality of foundation mechanisms can expand the contact range between the overall structure and the ground foundation, thereby avoiding excessive concentration of the wind turbine foundation in the installation area of the ground foundation, and can make the force on the overall wind turbine foundation evenly dispersed to the ground foundation after construction, thereby ensuring the stability of the overall wind turbine foundation structure. At the same time, during construction, the plurality of limiting anchor rods of the plurality of foundation mechanisms can be directly inserted into the soil layer, and the plurality of foundation mechanisms are limited. Secondly, when the ground base plate of the driving component contacts the soil layer, it will be squeezed inward, and the ground base plate can drive the longitudinal gear rod to move inward. The longitudinal gear rod can drive the bidirectional stud with the meshing gear sleeve to rotate through the meshing action. When the bidirectional stud rotates, since the outer side of the bidirectional stud has double threads, The two first built-in expansion components installed on the bidirectional stud can be driven out to expand the contact area between the foundation base mechanism and the soil layer. At the same time, after the first built-in expansion component is derived, the locking pin of the second built-in expansion component will disengage from the locking hole in the first built-in expansion component. At this time, the two outward push springs will push the second built-in expansion seat out, thereby realizing a secondary expansion of the contact area between the foundation base mechanism and the soil layer, thereby increasing the overall contact area between the foundation base mechanism and the soil layer, and cooperating with the limiting anchor rods, further improving the stability of the wind power foundation after construction, thereby effectively solving the problem of being unable to construct normally when encountering some areas with relatively weak foundation layers. The installed wind power foundation is prone to displacement after installation due to insufficient contact area with the surface foundation and the lack of any limiting anchor rods, resulting in frequent construction problems and improving the comprehensiveness of the application scenarios of the foundation structure.
[0027] 2. In the present invention, grouting pipes are provided on each foundation base mechanism. After the construction of the wind power foundation is completed, mortar can be filled into each foundation base mechanism through the grouting pipes, thereby increasing the gravity in each foundation base mechanism and ensuring the stability of the overall foundation structure. If the foundation surface is unbalanced due to the offset of the foundation base mechanism during the construction process, the gravity in each foundation base mechanism can be changed by adjusting the mortar proportion in each foundation base mechanism according to the overall imbalance of the foundation surface, thereby correcting the imbalance of the overall foundation surface. Through this design, the wind power foundation can have a certain correction function, and there is no need for large-scale rework. The construction is convenient and the application effect is excellent.
[0028] 3. In the present invention, a rotating blocking assembly is provided in the top groove of the foundation surface body. When it is necessary to fill mortar into each foundation base mechanism, a cross tool can be directly used to insert it into the cross top groove of the rotating blocking assembly, and the rotating blocking assembly can be rotated to stagger the blocking cover and the through hole, so that the blocking cover does not block the through hole. After filling mortar into each foundation base mechanism, the rotating blocking assembly can be rotated to reset it, and then the rotating blocking assembly can be pressed downward to make each blocking cover of the rotating blocking assembly inserted into the through hole, thereby preventing other sand and gravel from falling into the foundation base mechanism and affecting the set weight ratio in the foundation base mechanism, thereby ensuring the flatness of the overall foundation surface body, having good use effect, and being convenient and quick to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;
[0030] Figure 2 It is a schematic diagram of the exploded three-dimensional structure of the present invention;
[0031] Figure 3 It is a schematic diagram of an enlarged exploded three-dimensional structure of the present invention;
[0032] Figure 4 It is a schematic diagram of an enlarged combined three-dimensional structure of the first built-in expansion component, the second built-in expansion component and the driving component of the present invention;
[0033] Figure 5 is an enlarged three-dimensional structural schematic diagram of the second built-in expansion component of the present invention;
[0034] Figure 6 It is an enlarged exploded perspective structural diagram of the first built-in expansion component of the present invention;
[0035] Figure 7 is an enlarged three-dimensional structural schematic diagram of the rotation blocking assembly of the present invention;
[0036] Figure 8 for Figure 3 Schematic diagram of the enlarged structure at point A in the middle.
[0037] In the figure: 1. foundation surface body; 2. rotation blocking assembly; 21. cross top groove; 22. top plate; 23. side mounting frame; 24. blocking cover; 3. foundation base mechanism; 31. grouting pipe; 32. base body; 33. foundation base plate; 34. storage inner groove; 35. first built-in expansion assembly; 351. bottom panel; 352. first built-in expansion seat; 353. panel bottom groove; 354. connecting spring; 36. driving assembly; 361. pressure-bearing chassis; 362. two-way stud; 363. longitudinal slide rod; 364. longitudinal gear rod; 365. meshing gear sleeve; 366. set spring; 37. limiting anchor rod; 38. second built-in expansion assembly; 381. second built-in expansion seat; 382. mounting inner plate; 383. push-out spring; 384. positioning pin; 4. through hole; 5. top groove. DETAILED DESCRIPTION
[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.
[0039] See also Figure 1-8 The present invention provides a technical solution: a wind power foundation for a shallow covering layer of a soft foundation, comprising a foundation surface body 1, wherein a through hole 4 is provided inside the foundation surface body 1, and a plurality of foundation base mechanisms 3 are provided at the bottom of the foundation surface body 1, and the plurality of foundation base mechanisms 3 are used for stable installation of the foundation.
[0040] The foundation base mechanism 3 includes a base body 32 , a foundation base plate 33 is fixedly installed at the bottom of the base body 32 , a plurality of limiting anchor rods 37 are fixedly installed on the bottom surface of the foundation base plate 33 , and the grouting pipe 31 is embedded into the inner side of the through hole 4 .
[0041] The interior of the base chassis 33 is provided with multiple inner storage grooves 34, and the interiors of the multiple inner storage grooves 34 are respectively provided with a first built-in expansion component 35 and a second built-in expansion component 38. The first built-in expansion component 35 and the second built-in expansion component 38 are used for rapid expansion of the contact area at the bottom of the base body 32. The first built-in expansion component 35 includes a first built-in expansion seat 352, and the interior of the first built-in expansion seat 352 is provided with a panel bottom groove 353. A connecting spring 354 is fixedly installed on the side wall of the panel bottom groove 353, and one end of the connecting spring 354 is fixedly installed with a bottom panel 351, and the bottom panel 351 is slidably connected to the panel bottom groove 353.
[0042] The second built-in expansion component 38 includes an installation inner plate 382, which is fixedly installed on the inner wall of the top surface of the base chassis 33. Two outward push springs 383 are fixedly installed on the outer wall of one side of the installation inner plate 382. One end of the two outward push springs 383 is fixedly installed with a second built-in expansion seat 381. The second built-in expansion seat 381 is slidingly connected to the storage inner groove 34. A locking pin 384 is fixedly installed on the outer walls of both sides of the second built-in expansion seat 381. A locking hole is provided on the outer wall of one side of the first built-in expansion seat 352. One end of the locking pin 384 is locked into the locking hole. The volume of the second built-in expansion seat 381 is larger than that of the first built-in expansion seat 352.
[0043] The base chassis 33 is internally provided with a driving assembly 36, which is used for driving and controlling the first built-in expansion assembly 35 and the second built-in expansion assembly 38. The driving assembly 36 includes a bidirectional stud 362 and a longitudinal slide bar 363. The longitudinal slide bar 363 is longitudinally fixedly mounted on the inner wall of the bottom surface of the base chassis 33. A longitudinal gear rod 364 is slidably mounted on the outside of the longitudinal slide bar 363, and a sleeve spring 366 is fixedly mounted on the outside of the longitudinal slide bar 363. The set spring 366 is located above the longitudinal gear rod 364, and the bottom end of the longitudinal gear rod 364 is fixedly installed with a pressure chassis 361. The pressure chassis 361 is located on the outside of the base chassis 33. A threaded hole is provided inside one side of the first built-in expansion seat 352, and the bidirectional stud 362 is threadedly connected to the threaded hole. An engaging gear sleeve 365 is set at the middle position of the bidirectional stud 362, and the longitudinal gear rod 364 and the engaging gear sleeve 365 are meshed with each other.
[0044] The specific implementation method is as follows: during construction, multiple limiting anchor rods 37 of multiple foundation base mechanisms 3 can be directly inserted into the soil layer to perform limiting processing on multiple foundation base mechanisms 3. Secondly, when the foundation base plate 33 of the driving component 36 contacts the soil layer, it will be squeezed inward, and the foundation base plate 33 can drive the longitudinal gear rod 364 to move inward. The longitudinal gear rod 364 can drive the two-way stud 362 with the meshing gear sleeve 365 to rotate through the meshing action. When the two-way stud 362 rotates, since the outside of the two-way stud 362 has a double thread, it can drive the two installed on the two-way stud 362 to move inward. The first built-in expansion component 35 is led out, so that the contact area between the foundation base mechanism 3 and the soil layer is expanded once. At the same time, after the first built-in expansion component 35 is led out, the locking pin 384 of the second built-in expansion component 38 will be disengaged from the locking hole in the first built-in expansion component 35. At this time, the two outward push springs 383 will push the second built-in expansion seat 381 out, thereby realizing a secondary expansion of the contact area between the foundation base mechanism 3 and the soil layer, thereby increasing the contact area between the foundation base mechanism 3 and the soil layer as a whole, and cooperating with the limiting anchor rod 37, further improving the stability of the wind power foundation after construction.
[0045] By designing a plurality of foundation base mechanisms 3, and providing two groups of first built-in expansion components 35 and second built-in expansion components 38 in the foundation base mechanisms 3, the design of the plurality of foundation base mechanisms 3 can expand the contact range between the overall structure and the ground foundation, thereby avoiding excessive concentration of the wind turbine foundation in the installation area of the ground foundation, and can make the force on the overall wind turbine foundation evenly dispersed to the ground foundation after construction, thereby ensuring the stability of the overall wind turbine foundation structure, and effectively solving the problem that when encountering some areas with relatively weak foundation layers, normal construction cannot be carried out, and the overall wind turbine foundation after installation is prone to displacement after installation due to insufficient contact area with the surface foundation and the lack of any limiting anchor rods, resulting in frequent construction problems, while improving the comprehensiveness of the application scenarios of the foundation structure.
[0046] A grouting pipe 31 is fixedly mounted on the top surface of the base body 32 , and the interior of the base body 32 is a cavity.
[0047] The specific implementation method is as follows: after the construction of the wind power foundation is completed, mortar can be filled into each foundation base mechanism 3 through the grouting pipe 31, so as to increase the gravity inside each foundation base mechanism 3 and ensure the stability of the overall foundation structure. If the foundation surface body 1 is unbalanced due to the offset of the foundation base mechanism 3 during the construction process, the gravity inside each foundation base mechanism 3 can be changed by adjusting the mortar proportion in each foundation base mechanism 3 according to the overall imbalance of the foundation surface body 1, thereby correcting the imbalance of the overall foundation surface body 1.
[0048] Through this design, the wind power foundation can have a certain correction function, and there is no need for large-scale rework. The construction is convenient and the application effect is excellent.
[0049] A top groove 5 is provided on the top surface of the foundation surface body 1, and a rotation blocking assembly 2 is rotatably installed inside the top groove 5. The rotation blocking assembly 2 is used to block the through hole 4. The rotation blocking assembly 2 includes a top plate 22, and a cross top groove 21 is provided on the top surface of the top plate 22. A side mounting frame 23 is fixedly installed on the side wall of the top plate 22, and a blocking cover 24 is fixedly installed on one end of the side mounting frame 23. The blocking cover 24 and the through hole 4 are adapted to each other.
[0050] The specific implementation method is as follows: when it is necessary to fill mortar into each foundation base mechanism 3, a cross tool can be directly used to clip into the cross top groove 21 of the rotating blocking assembly 2, and the rotating blocking assembly 2 is rotated to stagger the blocking cover 24 with the through hole 4, so that the blocking cover 24 does not block the through hole 4. After the mortar is filled into each foundation base mechanism 3, the rotating blocking assembly 2 can be rotated to reset it, and then the rotating blocking assembly 2 can be pressed downward to make each blocking cover 24 of the rotating blocking assembly 2 clip into the through hole 4, so as to prevent other sand and gravel from falling into the foundation base mechanism 3 and affecting the set weight ratio in the foundation base mechanism 3, thereby ensuring the flatness of the overall foundation surface 1.
[0051] Working principle: During construction, multiple limiting anchor rods 37 of multiple foundation base mechanisms 3 can be directly inserted into the soil layer to perform limiting processing on multiple foundation base mechanisms 3. Secondly, when the foundation base plate 33 of the driving component 36 contacts the soil layer, it will be squeezed inward, and the foundation base plate 33 can drive the longitudinal gear rod 364 to move inward. The longitudinal gear rod 364 can drive the two-way stud 362 with the meshing gear sleeve 365 to rotate through the meshing action. When the two-way stud 362 rotates, since the outside of the two-way stud 362 has a double thread, it can drive the two first inner The expansion assembly 35 is led out to expand the contact area between the foundation base mechanism 3 and the soil layer. At the same time, after the first built-in expansion assembly 35 is led out, the locking pin 384 of the second built-in expansion assembly 38 will be out of the locking hole in the first built-in expansion assembly 35. At this time, the two outward push springs 383 will push the second built-in expansion seat 381 out, thereby realizing the secondary expansion of the contact area between the foundation base mechanism 3 and the soil layer, thereby increasing the contact area between the foundation base mechanism 3 and the soil layer as a whole, and cooperating with the limiting anchor rod 37, further improving the stability of the wind power foundation after construction; After the foundation construction is completed, mortar can be filled into each foundation base mechanism 3 through the grouting pipe 31, so as to increase the gravity in each foundation base mechanism 3 and ensure the stability of the overall foundation structure. If the foundation surface body 1 is unbalanced due to the deviation of the foundation base mechanism 3 during the construction process, the gravity in each foundation base mechanism 3 can be changed according to the overall imbalance of the foundation surface body 1 by adjusting the mortar ratio in each foundation base mechanism 3, so as to correct the imbalance of the overall foundation surface body 1; when it is necessary to fill mortar into each foundation base mechanism 3, You can directly use a cross tool to insert it into the cross top groove 21 of the rotating blocking assembly 2, rotate the rotating blocking assembly 2, so that the blocking cover 24 is staggered with the through hole 4, and the blocking cover 24 does not block the through hole 4. After filling mortar into each foundation base mechanism 3, you can rotate the rotating blocking assembly 2 to reset it, and then press the rotating blocking assembly 2 downward to make each blocking cover 24 of the rotating blocking assembly 2 inserted into the through hole 4, so as to prevent other sand and gravel from falling into the foundation base mechanism 3 and affecting the set weight ratio in the foundation base mechanism 3, thereby ensuring the flatness of the overall foundation surface 1.
Claims
1. A wind power foundation for a shallow overburden layer on a soft foundation, comprising a foundation surface body (1), characterized in that: The foundation surface body (1) is provided with a through hole (4) inside, and a plurality of foundation base mechanisms (3) are provided at the bottom of the foundation surface body (1), and the plurality of foundation base mechanisms (3) are used for stable installation of the foundation; The foundation base mechanism (3) comprises a base body (32), a grouting pipe (31) is fixedly mounted on the top surface of the base body (32), the interior of the base body (32) is a cavity, a foundation base plate (33) is fixedly mounted on the bottom of the base body (32), a plurality of limiting anchor rods (37) are fixedly mounted on the bottom surface of the foundation base plate (33), and the grouting pipe (31) is clamped into the inner side of the through hole (4); A driving assembly (36) is provided inside the base chassis (33), and the driving assembly (36) is used for driving and controlling the first built-in expansion assembly (35) and the second built-in expansion assembly (38). The driving assembly (36) includes a bidirectional stud (362) and a longitudinal slide bar (363). The longitudinal slide bar (363) is longitudinally fixedly mounted on the inner wall of the bottom surface of the base chassis (33). A longitudinal gear rod (364) is slidably mounted on the outside of the longitudinal slide bar (363), and a sleeve spring (366) is fixedly mounted on the outside of the longitudinal slide bar (363). The sleeve spring (366) is located above the longitudinal gear rod (364), and a pressure-bearing chassis (361) is fixedly installed at the bottom end of the longitudinal gear rod (364), and the pressure-bearing chassis (361) is located outside the base chassis (33).
2. The wind power foundation for a shallow covering layer on a weak foundation according to claim 1, characterized in that: The interior of the base chassis (33) is provided with a plurality of inner receiving grooves (34), and the interiors of the plurality of inner receiving grooves (34) are respectively provided with a first built-in expansion component (35) and a second built-in expansion component (38). The first built-in expansion component (35) and the second built-in expansion component (38) are used for rapidly expanding the contact area of the bottom of the base body (32).
3. The wind power foundation for a shallow covering layer on a soft foundation according to claim 2, characterized in that: The first built-in expansion component (35) includes a first built-in expansion seat (352), a panel bottom groove (353) is provided inside the first built-in expansion seat (352), a connecting spring (354) is fixedly installed on the side wall of the panel bottom groove (353), one end of the connecting spring (354) is fixedly installed with a bottom panel (351), and the bottom panel (351) is slidably connected to the panel bottom groove (353).
4. The wind power foundation for a shallow covering layer on a soft foundation according to claim 3, characterized in that: The second built-in expansion component (38) includes an installation inner plate (382), which is fixedly installed on the inner wall of the top surface of the foundation base (33), and two outward push springs (383) are fixedly installed on the outer wall of one side of the installation inner plate (382), and one end of the two outward push springs (383) is fixedly installed with a second built-in expansion seat (381).
5. The wind power foundation for a shallow covering layer on a soft foundation according to claim 4, characterized in that: The second built-in expansion seat (381) is slidably connected to the receiving inner groove (34), and a locking pin shaft (384) is fixedly installed on the outer walls of both sides of the second built-in expansion seat (381). A locking hole is provided on the outer wall of one side of the first built-in expansion seat (352), and one end of the locking pin shaft (384) is locked into the locking hole. The volume of the second built-in expansion seat (381) is larger than that of the first built-in expansion seat (352).
6. The wind power foundation for a shallow covering layer on a soft foundation according to claim 3, characterized in that: A threaded hole is provided inside one side of the first built-in expansion seat (352), and the bidirectional stud (362) is threadedly connected to the threaded hole. An engaging tooth sleeve (365) is mounted at the middle position of the bidirectional stud (362), and the longitudinal gear rod (364) and the engaging tooth sleeve (365) are meshed with each other.
7. The wind power foundation for a shallow covering layer on a soft foundation according to claim 6, characterized in that: A top groove (5) is provided on the top surface of the foundation surface body (1), a rotation blocking assembly (2) is rotatably installed inside the top groove (5), and the rotation blocking assembly (2) is used to block the through hole (4). The rotation blocking assembly (2) includes a top plate (22), a cross top groove (21) is provided on the top surface of the top plate (22), a side mounting frame (23) is fixedly installed on the side wall of the top plate (22), and a blocking cover (24) is fixedly installed on one end of the side mounting frame (23), and the blocking cover (24) and the through hole (4) are adapted to each other.
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