CN217758915U - Semi-prefabricated light photovoltaic support foundation - Google Patents
Semi-prefabricated light photovoltaic support foundation Download PDFInfo
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- CN217758915U CN217758915U CN202221944672.4U CN202221944672U CN217758915U CN 217758915 U CN217758915 U CN 217758915U CN 202221944672 U CN202221944672 U CN 202221944672U CN 217758915 U CN217758915 U CN 217758915U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
A semi-prefabricated light photovoltaic support foundation comprises a prefabricated foundation bottom plate, wherein the prefabricated foundation bottom plate is of a reinforced concrete plate structure, foundation bottom plate reinforcing steel bars for anchoring into foundation side plates are reserved at the plate edges of the prefabricated foundation bottom plate, and photovoltaic buttress reinforcing steel bars for anchoring into the foundation above the prefabricated foundation bottom plate are reserved in the middle of the prefabricated foundation bottom plate; the foundation side plate is arranged on the periphery above the prefabricated foundation bottom plate, a foundation side plate steel bar is arranged in the foundation side plate, a plastic foam block is arranged in a surrounding area of the foundation side plate steel bar, a hole is formed in the middle of the plastic foam block, a photovoltaic buttress steel bar anchored into the prefabricated foundation bottom plate can penetrate through the hole, a foundation top plate steel bar is arranged above the plastic foam block, and the foundation top plate steel bar is connected with the foundation side plate steel bar; the foundation top plate is protruded from the upper end of the photovoltaic buttress, and a photovoltaic bracket connecting piece is buried in the top surface of the photovoltaic buttress. The utility model has the advantages of simple structure, extensive applicability is general, and the construction is convenient, and the engineering volume is less, and the engineering cost is low.
Description
Technical Field
The utility model relates to a photovoltaic support basis especially relates to a semi-prefabricated light-duty photovoltaic support basis.
Background
With the vigorous development of clean energy in China, the carbon peak reaching and the carbon neutralization are realized. In China, the construction areas and the number of photovoltaic power stations are continuously expanded, and the construction land is not only distributed in the desert areas in the northwest of China, but also distributed in coastal areas of beaches and lakes, abandoned mine sites of coal mines and the like. The fields in the areas are distributed with soft plastic or plastic-flowing soft soil fields in a large quantity. At present, aiming at the soft soil sites, the mainly adopted photovoltaic support foundation form mainly comprises: steel ground anchor foundation, precast pile (PC pile) foundation and micropore cast-in-place pile foundation. The expanded foundation of the reinforced concrete commonly used in engineering has larger self weight and larger sedimentation during use, and is not applicable to the expanded foundation of the soft plastic-flow plastic weak soil concrete field in relevant regulations and specifications. The steel ground anchor foundation, the precast pile (PC pile) foundation and the micropore filling pile foundation all belong to pile foundations, and in order to play the bearing capacity performance of the pile in a soft plastic-flow plastic soft soil field, the pile length is longer than the common length, and the foundation construction cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that it is limited to overcome the basic form that can adopt on the soft plastic or flow and mould soft soil field photovoltaic support basis, and the higher problem of infrastructure cost provides a place extensive applicability, and the construction degree of difficulty is little, and half prefabricated light-duty photovoltaic support basis that the construction cost is low.
The utility model provides a technical scheme that its technical problem adopted is: a semi-prefabricated light photovoltaic support foundation comprises a prefabricated foundation bottom plate, wherein the prefabricated foundation bottom plate is of a reinforced concrete plate structure, foundation bottom plate reinforcing steel bars used for being anchored into foundation side plates are reserved on plate edges of the prefabricated foundation bottom plate, and photovoltaic buttress reinforcing steel bars anchored into the foundation above the prefabricated foundation bottom plate are reserved in the middle of the prefabricated foundation bottom plate;
the prefabricated foundation comprises a prefabricated foundation bottom plate, a foundation side plate, a foundation top plate steel bar, a foundation side plate steel bar, a plastic foam block, a photovoltaic buttress steel bar and a foundation side plate steel bar, wherein the foundation side plate is arranged on the periphery above the prefabricated foundation bottom plate, the foundation side plate steel bar is arranged in the foundation side plate, the plastic foam block is arranged in the surrounded area of the foundation side plate steel bar, the middle part of the plastic foam block is provided with a hole, the photovoltaic buttress steel bar anchored into the prefabricated foundation bottom plate can penetrate through the hole, the foundation top plate steel bar is arranged above the plastic foam block, and the foundation top plate steel bar is connected with the foundation side plate steel bar; the photovoltaic buttress is connected with the prefabricated foundation bottom plate and the prefabricated foundation top plate into a reinforced concrete whole through a hole in the middle of the plastic foam block; the foundation top plate is protruded from the upper end of the photovoltaic buttress, and a photovoltaic bracket connecting piece is buried in the top surface of the photovoltaic buttress.
Further, the foundation side plates and the foundation top plate are of cast-in-place reinforced concrete structures, and the photovoltaic buttress is of a cast-in-place reinforced concrete column pier structure.
Further, the planar shape of the prefabricated foundation slab is rectangular or circular.
Furthermore, the shape of a single steel bar in the prefabricated foundation slab is U-shaped, and the U-shaped steel bar penetrates out of the prefabricated foundation slab section to form a vertical steel bar of the foundation side plate anchored into the prefabricated foundation slab.
Furthermore, the reinforcing steel bars in the foundation side plates and the foundation top plate are arranged in a single-layer bidirectional net shape.
Compared with the prior art, the utility model has the advantages as follows:
(1) The semi-prefabricated light photovoltaic support foundation can be classified into a reinforced concrete expansion type foundation, the self weight of the semi-prefabricated light photovoltaic support foundation is smaller, the weight of the foundation is smaller than that of a soil body replaced by the foundation, and after facilities above the photovoltaic foundation are installed, the foundation additional stress at the bottom of the foundation is not increased, so that the problem of subsequent settlement of the site foundation after construction is fundamentally solved; the method can be applied to soft plastic or soft plastic soil fields; the limit that the expanded type foundation of the reinforced concrete in the relevant regulations and specifications is not suitable for soft plastic-flow plastic soft soil fields is broken through.
(2) The concrete cushion is not arranged at the bottom of the semi-prefabricated light photovoltaic support foundation, so that the construction links are reduced compared with the traditional reinforced concrete extended foundation, the construction time is shortened, and the engineering quantity is saved.
(3) The foundation roof reinforcing steel bars and the foundation side plate reinforcing steel bars are connected, so that plastic foam blocks can be prevented from floating upwards when the foundation side plates, the foundation roof and the photovoltaic buttress are cast in situ, and the construction quality and the construction safety are guaranteed.
(4) The construction is simple and novel, the construction is convenient, the engineering quantity is small, the construction method is applied to soft plastic-flow plastic soft soil sites, and the construction method is low in cost compared with various pile foundation engineering.
Drawings
Fig. 1 is a schematic three-dimensional structure of an embodiment of the present invention;
fig. 2 is a schematic top view of the embodiment of fig. 1.
Fig. 3 is a schematic vertical section of the embodiment of fig. 1.
Fig. 4 is a schematic view in horizontal section of the embodiment of fig. 1.
Fig. 5 is the utility model discloses basic foundation ditch sketch map.
In the figure: 1-prefabricated foundation slab, 2-foundation slab reinforcing steel bar, 3-foundation side plate, 4-foundation side plate reinforcing steel bar, 5-foundation roof, 6-foundation roof reinforcing steel bar, 7-plastic foam block, 8-photovoltaic buttress, 8-1-lower section of photovoltaic buttress foundation roof, 8-2-photovoltaic buttress salient foundation roof section, 9-photovoltaic buttress reinforcing steel bar, 10-photovoltaic support connecting piece, 11-original foundation soil, 12-foundation pit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to the attached drawings 1-5, the prefabricated foundation slab comprises a prefabricated foundation slab 1, foundation slab reinforcing steel bars 2 used for being anchored into foundation side plates 3 are reserved on the slab edges of the prefabricated foundation slab 1, and photovoltaic buttress reinforcing steel bars 9 anchored into a foundation above the prefabricated foundation slab 1 are reserved in the middle of the prefabricated foundation slab 1.
The utility model discloses a prefabricated foundation slab, including prefabricated foundation slab 1, foundation curb plate 3, plastic foam piece 7, photovoltaic buttress reinforcing bar 9, plastic foam piece 7, the middle part of plastic foam piece 7 is opened has the hole and is made the anchor go into prefabricated foundation slab 1 and can pass this hole, the foundation roof reinforcing bar 6 of reinforced concrete material is arranged to plastic foam piece 7 top, reinforced concrete's foundation roof reinforcing bar 6 is connected with prefabricated foundation slab reinforcing bar 4 around locating prefabricated foundation slab 1 top in the foundation curb plate 3, be equipped with foundation curb plate reinforcing bar 4 in the foundation curb plate 3, and the foundation curb plate reinforcing bar 4 surrounds the region and places plastic foam piece 7. The foundation side plates 3 and the foundation top plate 5 are of cast-in-place reinforced concrete plate structures, the photovoltaic buttress 8 is of a cast-in-place reinforced concrete column pier structure, and the photovoltaic buttress 8 is connected with the prefabricated foundation bottom plate 1 and the foundation top plate 5 into a reinforced concrete whole through holes in the middle of the plastic foam blocks 7. The upper end of the photovoltaic buttress 8 protrudes out of the foundation top plate 5, and the photovoltaic support connecting piece 10 is embedded in the top surface of the photovoltaic buttress 8.
The prefabricated foundation slab 1 is a reinforced concrete slab structure, has the dimensions of 120mm (thickness) multiplied by 1000mm (width) multiplied by 1200mm (length), and is made of C30 concrete.
The foundation slab reinforcing steel bars 2 are formed by longitudinally and transversely crossing single U-shaped reinforcing steel bars to form a bidirectional single-layer reinforcing mesh, the mutual distance between the longitudinal reinforcing steel bars and the transverse reinforcing steel bars is 150mm, the diameter of the reinforcing steel bars is 8mm, the material is HRB400, and the length of the U-shaped reinforcing steel bars penetrating out of the prefabricated foundation slab section is 540mm.
The base side plate 3 is formed by encircling four plates along the four sides of the prefabricated base bottom plate 1, and is made of C30 concrete with the size of 80mm (thickness) multiplied by 4800mm (outer circumference) multiplied by 500mm (height).
The foundation side plate reinforcing steel bars 4 are bidirectional single-layer reinforcing steel bar meshes which are formed by U-shaped reinforcing steel bars penetrating out of the prefabricated foundation bottom plate 1 and horizontal reinforcing steel bars hooping the U-shaped reinforcing steel bars, the mutual distance between the horizontal reinforcing steel bars is 150mm, the diameter of each reinforcing steel bar is 8mm, and the material is HRB400.
The foundation roof 5, having dimensions of 80mm (thickness) x 1000mm (width) x 1200mm (length), is made of C30 concrete.
The foundation roof reinforcing steel bar 6 is formed by vertically and transversely arranging downwards bent reinforcing steel bars at two ends to form a bidirectional single-layer reinforcing steel bar net, the vertical and transverse reinforcing steel bars are 150mm apart from each other, the downwards bent lengths of the ends of the reinforcing steel bars are 100mm, the diameters of the reinforcing steel bars are 8mm, and the material is HRB400.
The plastic foam block 7 is a rectangular parallelepiped with a size of 500mm (height) × 840mm (width) × 1040mm (length), a rectangular through hole is formed at the center position of the plane, and the hole with a size of 500mm (height) × 250mm (width) × 300mm (length) is cut and processed by polystyrene foam.
A photovoltaic buttress 8, having dimensions of 1500mm (total height) x 250mm (width) x 300mm (length), made of C30 concrete; the photovoltaic buttress foundation top plate comprises 8-1 parts of lower sections, wherein the size is 700mm (height) multiplied by 250mm (width) multiplied by 300mm (length); the photovoltaic buttress protrudes out of the foundation roof section by 8-2, and the size is 800mm (height) multiplied by 250mm (width) multiplied by 300mm (length).
Photovoltaic buttress reinforcing bar 9 comprises 4 vertical reinforcing bars and corresponding stirrup that anchor goes into prefabricated foundation slab 1, vertical reinforcing bar diameter 12mm, stirrup diameter 6mm, stirrup interval 150mm, and the material is HRB400.
The photovoltaic bracket connecting piece 10 is a pair of U-shaped anchor bolt assemblies, the diameter of each anchor bolt is 22mm, and the material is Q355B; undisturbed foundation soil 11 which is undisturbed soil; the materials backfilled in the foundation pit 12 are residual soil of the foundation pit.
The construction method of the embodiment is as follows:
(1) And (4) processing and binding and manufacturing the foundation slab reinforcing steel bars 2 and the photovoltaic buttress reinforcing steel bars 9 in a prefabricated part workshop or field. After the foundation slab reinforcing steel bars 2 and the photovoltaic buttress reinforcing steel bars 9 are fixed in place, pouring concrete of the prefabricated foundation slab 1 to complete the manufacturing of the prefabricated foundation slab 1.
(2) A foundation pit 12 is excavated to a designed elevation in undisturbed foundation soil 11, and undisturbed soil at the bottom of the foundation pit 12 is tamped to be flat.
(3) The prefabricated foundation slab 1 is placed at the bottom of the foundation pit 12, and then the plastic foam block 7 is placed on the prefabricated foundation slab 1 and fixed in place.
(4) Arrange, ligature basic roof reinforcing bar 6 above plastic foam piece 7, basic roof reinforcing bar 6 is connected with the reinforcing bar of basic curb plate reinforcing bar 4 through both ends turn down the bending section, and the connected mode can be welding or ligature overlap joint.
(5) And arranging lateral templates around the outer edge of the prefabricated foundation bottom plate 1, and then pouring concrete of the lower sections 8-1 below the foundation side plates 3, the foundation top plate 5 and the photovoltaic buttress top plate in situ.
(6) And positioning and binding and fixing the photovoltaic bracket connecting piece 10 at the top of the photovoltaic buttress steel bar 9. And after the cast-in-place concrete in the previous step is finally set, pouring concrete with the photovoltaic buttress protruding out of the top plate section 8-2 of the foundation on the formwork above the lower section 8-1 of the foundation top plate of the photovoltaic buttress.
(7) And after the cast-in-place concrete is maintained, backfilling the plain soil to the foundation pit 12. Finally, the semi-prefabricated lightweight photovoltaic support foundation of the present embodiment is formed.
Various modifications and variations of the present invention may be made by those skilled in the art, and they are within the scope of the present invention provided they are within the scope of the claims and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (5)
1. The utility model provides a half prefabricated light-duty photovoltaic support basis, includes prefabricated soleplate, its characterized in that: the prefabricated foundation slab is of a reinforced concrete slab structure, foundation slab reinforcing steel bars for anchoring into the foundation side plates are reserved on the slab edges of the prefabricated foundation slab, and photovoltaic buttress reinforcing steel bars for anchoring into the foundation above the prefabricated foundation slab are reserved in the middle of the prefabricated foundation slab;
the prefabricated foundation comprises a prefabricated foundation bottom plate, a foundation side plate, a foundation top plate steel bar, a foundation side plate steel bar, a plastic foam block, a photovoltaic buttress steel bar and a foundation side plate steel bar, wherein the foundation side plate is arranged on the periphery above the prefabricated foundation bottom plate, the foundation side plate steel bar is arranged in the foundation side plate, the plastic foam block is arranged in the surrounded area of the foundation side plate steel bar, the middle part of the plastic foam block is provided with a hole, the photovoltaic buttress steel bar anchored into the prefabricated foundation bottom plate can penetrate through the hole, the foundation top plate steel bar is arranged above the plastic foam block, and the foundation top plate steel bar is connected with the foundation side plate steel bar; the photovoltaic buttress is connected with the prefabricated foundation bottom plate and the foundation top plate into a reinforced concrete whole through a hole in the middle of the plastic foam block; the foundation top plate is protruded from the upper end of the photovoltaic buttress, and a photovoltaic bracket connecting piece is buried in the top surface of the photovoltaic buttress.
2. The semi-prefabricated lightweight photovoltaic support foundation of claim 1, further comprising: the foundation side plates and the foundation top plate are of cast-in-place reinforced concrete structures, and the photovoltaic buttress is of a cast-in-place reinforced concrete column pier structure.
3. The semi-prefabricated lightweight photovoltaic support foundation of claim 2, wherein: the plane shape of the prefabricated foundation slab is rectangular or circular.
4. Semi-prefabricated lightweight photovoltaic rack foundation according to one of the claims 1 to 3, characterized in that: the single steel bar in the prefabricated foundation slab is U-shaped, and the U-shaped steel bar penetrates out of the prefabricated foundation slab section to form a vertical steel bar anchored into the foundation side plate.
5. Semi-prefabricated lightweight photovoltaic rack foundation according to one of the claims 1 to 3, characterized in that: the reinforcing steel bars in the foundation side plates and the foundation top plate are arranged in a single-layer bidirectional net shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221944672.4U CN217758915U (en) | 2022-07-25 | 2022-07-25 | Semi-prefabricated light photovoltaic support foundation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221944672.4U CN217758915U (en) | 2022-07-25 | 2022-07-25 | Semi-prefabricated light photovoltaic support foundation |
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| CN217758915U true CN217758915U (en) | 2022-11-08 |
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| CN202221944672.4U Active CN217758915U (en) | 2022-07-25 | 2022-07-25 | Semi-prefabricated light photovoltaic support foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467353A (en) * | 2022-11-14 | 2022-12-13 | 中建八局第二建设有限公司 | A precast concrete basis for assembled container board house |
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2022
- 2022-07-25 CN CN202221944672.4U patent/CN217758915U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467353A (en) * | 2022-11-14 | 2022-12-13 | 中建八局第二建设有限公司 | A precast concrete basis for assembled container board house |
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