CN213625676U - Combined anti-scour beach fan foundation - Google Patents
Combined anti-scour beach fan foundation Download PDFInfo
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- CN213625676U CN213625676U CN202022623020.8U CN202022623020U CN213625676U CN 213625676 U CN213625676 U CN 213625676U CN 202022623020 U CN202022623020 U CN 202022623020U CN 213625676 U CN213625676 U CN 213625676U
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Abstract
The utility model discloses a combined anti-scour beach fan foundation, which comprises a bearing platform foundation, wherein a lower bearing platform is arranged on the bearing platform foundation, and a first mounting hole which is arranged along the longitudinal direction is arranged in the lower bearing platform; force-bearing equally-divided piles are distributed around the lower bearing platform and are arranged at equal intervals with the lower bearing platform, and the included angles of the adjacent force-bearing equally-divided piles are equal; a bearing wing wall is arranged between the lower bearing platform and the bearing equal-division pile; a flood control bearing platform is arranged above the lower bearing platform, and a second mounting hole corresponding to the first mounting hole is formed in the flood control bearing platform; the first mounting hole and the second mounting hole are internally provided with anchor rods in a penetrating mode and used for connecting the flood control bearing platform and the lower bearing platform together. The utility model provides a combination formula scour protection mud flat fan foundation, simple structure, the construction of being convenient for adopts whole stake alone, and the atress is good, is particularly suitable for the mud flat area, can require prefabricated height according to the flood control, greatly improves wind-powered electricity generation field security.
Description
Technical Field
The utility model belongs to the technical field of tower section of thick bamboo basis technique for wind-driven engine and specifically relates to a modular scour protection mud flat fan foundation is related to.
Background
In recent years, with the continuous optimization and adjustment of national energy structures, the wind power generation in the new energy category is emphasized, and in addition, the national policy is strongly supported in all aspects, and the domestic wind power generation is rapidly developed. The traditional fan foundation comprises a rib beam foundation, an expansion foundation, an anchor rod foundation and the like, and the traditional fan foundation is complex in steel bar binding, time-consuming, complex in template supporting and high in construction difficulty; secondly, the volume of the cast-in-place concrete is large, particularly the number of pile foundations is large, so that the construction quality and progress are difficult to guarantee, and the water and soil conservation and the environmental influence are large in the construction process; thirdly, when a wind power plant is built in a beach area, the problems of scour prevention and flood prevention need to be considered, but the traditional wind turbine foundation cannot meet the requirements of scour prevention and flood prevention; finally, the existing fan is high in labor input and engineering cost during construction.
Disclosure of Invention
In order to solve the problem, the utility model provides a combination formula scour protection mud flat fan basis that cost is low, construction speed is fast, environmental impact is little, the safety and stability, possess scour protection flood control function specifically can take following technical scheme:
modular scour protection mud flat fan basis, fan basis include
A bearing platform foundation having an annular reinforced concrete structure;
the lower bearing platform is correspondingly arranged above the bearing platform foundation, and a first mounting hole which is longitudinally arranged is formed in the lower bearing platform;
the bearing equal-division piles are distributed around the lower bearing platform, the bearing equal-division piles are arranged at equal intervals with the lower bearing platform, and the included angles of the adjacent bearing equal-division piles are equal;
the bearing wing wall is arranged between the lower bearing platform and the bearing equal-division pile and is used for connecting the lower bearing platform and the bearing equal-division pile;
the flood control bearing platform is correspondingly arranged above the lower bearing platform, and a second mounting hole corresponding to the first mounting hole is formed in the flood control bearing platform;
the anchor rod penetrates through the first mounting hole and the second mounting hole and is used for connecting the flood control bearing platform and the lower bearing platform together.
The fan foundation further comprises a foundation cushion layer which is flush with the bottom surfaces of the bearing platform foundation and the bearing wing wall, the lower bearing platform and the bearing wing wall are arranged on the foundation cushion layer, and pile tips of the bearing equal-dividing piles are located below the foundation cushion layer.
The fan foundation further comprises backfill arranged in the bearing platform foundation, the central hole in the inner side of the lower bearing platform and in the excavation foundation pit on the outer side of the lower bearing platform.
The pile tip and the pile body of the bearing equal-division pile are of a movable connection structure.
And an anti-impact guest-lattice cage is arranged at one side of the top of the bearing wing wall, which is close to the lower bearing platform.
The bearing platform foundation further comprises an inner-layer corrugated pipe located on the inner side of the reinforced concrete structure and an outer-layer corrugated pipe located on the outer side of the reinforced concrete structure.
Be provided with annular sealing rod on the contact surface of lower cushion cap and flood control cushion cap, annular sealing rod is including setting up the outer sealing rod in the stock outside and the interior sealing rod of setting in the stock inboard.
The bottom of lower cushion cap is provided with buries anchor slab down in advance, the top of flood control cushion cap is provided with anchor slab, the stock extends to go up the anchor slab and anchor slab down outside to through nut fastening connection.
The stock includes many interior stocks and outer stock, just interior stock all is cyclic annular distribution with outer stock.
The utility model provides a combination formula scour protection mud flat fan basis, simple structure, the construction of being convenient for, compared with prior art, it has following advantage:
1. the load-bearing equal-division piles, the load-bearing wing walls and the bearing platform foundation are combined, so that the consumption of reinforcing steel bars and concrete is greatly reduced;
2. compared with the traditional bearing platform foundation, the bearing platform foundation has simple process and less material consumption, adopts the single integral pile, has good stress and is particularly suitable for beach areas;
3. the utility model is provided with the flood control bearing platform, the height can be prefabricated according to the flood control requirement, the safety of the wind power plant is greatly improved, and the height of the steel tower drum on the flood control bearing platform which is increased can be reduced, thereby increasing the integral rigidity of the tower drum, effectively reducing the influence of the noise of the fan, greatly reducing the integral vibration frequency of the fan and effectively increasing the generating capacity of the wind power plant;
4. the bearing equal-dividing pile head of the utility model is provided with the separating pile tip, which is more suitable for soft foundation of mud flat, and the construction is more convenient and faster;
5. the utility model has simple process, high degree of mechanization operation and guaranteed construction progress; the labor input is less, and the construction cost is low; the field wet operation is less, and the influence on the environment is less;
6. the utility model discloses a certain spare part can adopt the standardized production of mill, and the basic quality can effectively be guaranteed in the manufacturing process, and outward appearance, durability, corrosion resistance all have great improvement than traditional fan basis.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view taken along line I-I of fig. 1.
Fig. 3 is a sectional view ii-ii of fig. 2.
Fig. 4 is an enlarged view of a portion a in fig. 2.
Fig. 5 is an enlarged view of a portion B in fig. 2.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1-5, modular protecting against shoal fan foundation, including the cushion cap basis 1 that is located the lower part foundation ditch, this cushion cap basis 1 including hug closely outer bellows 1.1 that foundation ditch outer wall set up and with concentric setting at its inside inlayer bellows 1.2, install annular steel reinforcement cage 1.3 between outer bellows 1.1 and the inlayer bellows 1.2, constitute annular reinforced concrete structure behind the concreting. In order to facilitate the installation of other parts of the fan foundation, a flat concrete foundation cushion layer 2 is poured on the bottom surface of the foundation pit at the upper part of the top surface of the bearing platform foundation 1 and the bottom surface of the bearing wing wall, and a lower bearing platform 3 and a bearing wing wall 4 are installed on the foundation cushion layer 2.
The lower bearing platform 3 is integrally prefabricated, a longitudinal first mounting hole is formed in the lower bearing platform, a pre-buried lower anchor plate 3.1 is arranged at the bottom of the lower bearing platform, and anchor bars buried in the lower bearing platform 3 are welded on the lower anchor plate 3.1; the anchor rod 5 passing through the first mounting hole is fastened on the embedded lower anchor plate 3.1 through a nut, and needs to correspond to the bearing platform foundation 1 to be mounted above the bearing platform foundation 1 during hoisting. In order to enable the lower bearing platform 3 to be stably placed, the bottom of the lower bearing platform 3 is provided with a groove, the top of the groove is a pre-buried lower anchor plate 3.1, and the tail end of the anchor rod 5 and a fastening nut on the anchor rod are both positioned in the groove. The anchor rods 5 are arranged in a ring shape in the lower bearing platform 3 and further distributed according to an inner ring and an outer ring.
The foundation pit around the lower bearing platform 3 is internally provided with force-bearing equally-divided piles 6, the number of the force-bearing equally-divided piles 6 can be determined according to the geology and the upper load, the three force-bearing equally-divided piles 6 are uniformly arranged according to 120-degree included angles, and the centers of the three force-bearing equally-divided piles are distributed on the same circumference taking the foundation pit as the center. The pile tip and the pile body of the force-bearing equal-division pile 6 adopt a movable connection type structure, the pile tip and a part of the pile body are embedded below the foundation cushion layer 2, and a hoop is arranged at the connection part of the pile tip and the pile body.
The three bearing wing walls 4 are respectively positioned between each bearing equal-division pile 6 and the lower bearing platform 3, the contact surfaces of the end parts of the bearing wing walls are cambered surfaces matched with the bearing equal-division piles 6 and the lower bearing platform 3, and high-strength concrete is usually adopted for grouting treatment of assembly gaps in the actual installation process to enable the assembly gaps to be tightly connected. The top of the bearing wing wall 4 is a slope structure which is gradually lifted from the bearing equal-dividing piles 6 to the lower bearing platform 3, and a horizontal installation platform is arranged at a higher position close to one side of the lower bearing platform 3 and used for fixing the scour prevention guest cage 7. The scour prevention guest-grid cage 7 is a guest-grid cage filled with rock blocks and used for resisting impact force of water flow on a fan foundation.
In general, backfill soil is provided in the center holes inside the bearing platform foundation 1 and the lower bearing platform 3 and in the upper foundation pit outside the lower bearing platform 3. The height of the flood control bearing platform 8 can be set according to the flood control requirement, and the flood control bearing platform is flexible and changeable and can be recycled. In order to prevent the water surface from being too high, the anchor rod 5 positioned in the first mounting hole and the second mounting hole is corroded by water, two annular water stop strips are arranged on the contact surface of the lower bearing platform 3 and the flood control bearing platform 8, wherein one annular water stop strip is an outer water stop strip 9.1 positioned on the outer side of the anchor rod 5, and the other annular water stop strip is an inner water stop strip 9.2 positioned on the inner side of the anchor rod 5.
During construction, the following steps are generally performed:
step one, constructing a bearing platform foundation 1: the method comprises the steps of setting out on site, vertically excavating a foundation pit layer by layer downwards, installing an outer-layer corrugated pipe 1.1 close to the inner wall of the foundation pit, sequentially placing a reinforcement cage 1.3 and an inner-layer corrugated pipe 1.2 according to the designed position, pouring concrete between the inner-layer corrugated pipe and the outer-layer corrugated pipe, performing backfill treatment on a central hole in the inner side of the inner-layer corrugated pipe 1.2, and finally pouring a foundation cushion 2;
secondly, installing a lower bearing platform 3: the anchor rod 5 is arranged in the first mounting hole in a penetrating mode and anchored on a pre-buried lower anchor plate 3.1 at the bottom of a lower bearing platform 3, then the lower bearing platform 3 is placed above a bearing platform foundation 1 through hoisting equipment, a bearing equal-division pile 6 is installed and fixed, a bearing wing plate 4 is installed between the bearing equal-division pile 6 and the bearing platform foundation 1, and if a gap exists between the bearing wing plate 4 and the contact surfaces of the bearing equal-division pile 6 and the bearing platform foundation 1, high-strength concrete is adopted for grouting treatment; then, an anti-impact guest-grid cage 7 is arranged at the top of one side of the bearing wing plate 4 close to the lower bearing platform 3;
thirdly, installing a flood control bearing platform 8: and (3) hoisting the flood control bearing platform 8, aligning the anchor rod 5 with the second mounting hole and penetrating the second mounting hole, so that the flood control bearing platform 8 is mounted above the lower bearing platform 3, then mounting an upper anchor plate 8.1 at the top of the flood control bearing platform and fastening the upper anchor plate by nuts, and finally performing backfill treatment in the central hole of the lower bearing platform 3 and the excavation foundation pit at the outer side of the lower bearing platform 3 to complete construction.
It should be noted that in the description of the present invention, terms of orientation or positional relationship such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Claims (9)
1. The utility model provides a modular scour protection mud flat fan basis which characterized in that: the wind turbine foundation comprises
A bearing platform foundation having an annular reinforced concrete structure;
the lower bearing platform is correspondingly arranged above the bearing platform foundation, and a first mounting hole which is longitudinally arranged is formed in the lower bearing platform;
the bearing equal-division piles are distributed around the lower bearing platform, the bearing equal-division piles are arranged at equal intervals with the lower bearing platform, and the included angles of the adjacent bearing equal-division piles are equal;
the bearing wing wall is arranged between the lower bearing platform and the bearing equal-division pile and is used for connecting the lower bearing platform and the bearing equal-division pile;
the flood control bearing platform is correspondingly arranged above the lower bearing platform, and a second mounting hole corresponding to the first mounting hole is formed in the flood control bearing platform;
the anchor rod penetrates through the first mounting hole and the second mounting hole and is used for connecting the flood control bearing platform and the lower bearing platform together.
2. The combined anti-scour beach fan foundation of claim 1, which is characterized in that: the fan foundation further comprises a foundation cushion layer which is flush with the bottom surfaces of the bearing platform foundation and the bearing wing wall, the lower bearing platform and the bearing wing wall are arranged on the foundation cushion layer, and pile tips of the bearing equal-dividing piles are located below the foundation cushion layer.
3. The combined anti-scour beach fan foundation of claim 1, which is characterized in that: the fan foundation further comprises backfill arranged in the bearing platform foundation, the central hole in the inner side of the lower bearing platform and in the excavation foundation pit on the outer side of the lower bearing platform.
4. The combined anti-scour beach fan foundation of claim 1, which is characterized in that: the pile tip and the pile body of the bearing equal-division pile are of a movable connection structure.
5. The combined anti-scour beach fan foundation of claim 1, which is characterized in that: and an anti-impact guest-lattice cage is arranged at one side of the top of the bearing wing wall, which is close to the lower bearing platform.
6. The combined anti-scour beach fan foundation of claim 1, which is characterized in that: the bearing platform foundation further comprises an inner-layer corrugated pipe located on the inner side of the reinforced concrete structure and an outer-layer corrugated pipe located on the outer side of the reinforced concrete structure.
7. The combined anti-scour beach fan foundation of claim 1, which is characterized in that: be provided with annular sealing rod on the contact surface of lower cushion cap and flood control cushion cap, annular sealing rod is including setting up the outer sealing rod in the stock outside and the interior sealing rod of setting in the stock inboard.
8. The combined anti-scour beach fan foundation of claim 1, which is characterized in that: the bottom of lower cushion cap is provided with buries anchor slab down in advance, the top of flood control cushion cap is provided with anchor slab, the stock extends to go up the anchor slab and anchor slab down outside to through nut fastening connection.
9. The combined anti-scour beach fan foundation of claim 8, wherein: the stock includes many interior stocks and outer stock, just interior stock all is cyclic annular distribution with outer stock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022623020.8U CN213625676U (en) | 2020-11-13 | 2020-11-13 | Combined anti-scour beach fan foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022623020.8U CN213625676U (en) | 2020-11-13 | 2020-11-13 | Combined anti-scour beach fan foundation |
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| Publication Number | Publication Date |
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| CN213625676U true CN213625676U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022623020.8U Active CN213625676U (en) | 2020-11-13 | 2020-11-13 | Combined anti-scour beach fan foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160336A (en) * | 2020-11-13 | 2021-01-01 | 黄河勘测规划设计研究院有限公司 | Combined type anti-scour mud flat fan foundation and construction method thereof |
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2020
- 2020-11-13 CN CN202022623020.8U patent/CN213625676U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160336A (en) * | 2020-11-13 | 2021-01-01 | 黄河勘测规划设计研究院有限公司 | Combined type anti-scour mud flat fan foundation and construction method thereof |
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