A reinforced concrete foundation and photovoltaic support suitable for mountain foundations

Abstract

This utility model provides a reinforced concrete foundation and photovoltaic support suitable for mountain foundations. The foundation includes a rock anchor bolt foundation and an above-ground reinforced concrete foundation. The rock anchor bolt foundation includes rock mass with drilled holes, anchor bolts anchored into the drilled holes, and anchor bolt fixing reinforcement connected to the upper end of the anchor bolts. The anchor bolt fixing reinforcement is embedded in the above-ground reinforced concrete foundation. The above-ground reinforced concrete foundation includes a foundation platform and short reinforced concrete columns extending vertically upwards from the centroid of the foundation platform. The bottom of the photovoltaic support column is embedded in the short reinforced concrete column. The rock anchor bolt foundation and the above-ground reinforced concrete foundation are formed as a single structure through the reinforced concrete structure, which can effectively fix the above-ground reinforced concrete foundation. This avoids the risk of the power station overturning due to excessive pull-out force on one side of the foundation caused by excessive eccentricity between the column and the foundation centroid due to terrain limitations or construction deviations.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic power generation equipment technology, specifically relating to photovoltaic support foundations. Background Technology

[0002] Common foundation treatment methods for residential photovoltaic (PV) systems include: helical pile foundations, micropile foundations, and spread foundations. To ensure safety, the center of the support column must coincide with the centroid of the foundation to avoid the risk of overturning caused by eccentricity.

[0003] Many rural households in China live in mountainous villages. To promote the "Thousands of Villages Bathed in Sunlight" initiative, many household photovoltaic power stations have been built on mountainsides due to terrain limitations. Because farmers' houses and courtyards are close to the mountains, construction deviations during the installation of the power station poles can result in the poles being too close to the mountain slope. Due to the hardness of the mountain rock and the difficulty of excavation, this can lead to excessive eccentricity between the pole and the foundation. Alternatively, if the poles are close to the edge of the house, excessive eccentricity between the pole and the foundation is unavoidable. All of these situations pose a risk of the power station overturning. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical problem to be solved by this utility model is to provide a reinforced concrete foundation and photovoltaic support suitable for mountain foundations, so as to avoid the risk of power station overturning caused by excessive eccentricity between the column and the foundation due to terrain limitations or construction deviations.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] First, a reinforced concrete foundation suitable for mountain foundations is provided, including a rock mass anchor bolt foundation and an above-ground reinforced concrete foundation. The rock mass anchor bolt foundation includes rock mass with drilled holes, anchor bolts anchored into the drilled holes, and anchor bolt fixing reinforcement connected to the upper end of the anchor bolts. The anchor bolt fixing reinforcement is embedded in the above-ground reinforced concrete foundation. The above-ground reinforced concrete foundation includes a foundation platform and short reinforced concrete columns that are offset from the centroid of the foundation platform and extend vertically upwards. The bottom of the photovoltaic support column is embedded in the short reinforced concrete column.

[0007] Preferably, the anchor bolt fixing reinforcement includes vertically extending anchor bolt fixing longitudinal bars and anchor bolt fixing transverse bars that are perpendicularly intersecting and connected to the anchor bolt fixing longitudinal bars, and the anchor bolt and the anchor bolt fixing longitudinal bars are an integral structure.

[0008] Preferably, the foundation platform is a rectangular platform, the anchor bolt fixing horizontal bars form a rectangle and are arranged at least two layers at intervals along the vertical direction, and the anchor bolt fixing longitudinal bars are arranged at the four corners of the rectangle and distributed at intervals along the sides of the rectangle.

[0009] Preferably, the anchor bolt and the anchor bolt fixing reinforcement are made of threaded steel; and / or, the reinforced concrete short column portion is located inside the rectangle formed by the anchor bolt fixing cross reinforcement.

[0010] Preferably, the bottom of the above-ground reinforced concrete foundation is provided with a plain concrete pad layer.

[0011] Preferably, the above-ground reinforced concrete foundation has vertically intersecting transverse bottom bars and longitudinal bottom bars laid on top of the plain concrete pad; and / or, the reinforced concrete short column is rectangular, with short column stirrups forming the rectangle inside and short column longitudinal bars located at the four corners of the rectangle and connected to the short column stirrups, and the bottom of the reinforced concrete short column is located on top of the plain concrete pad.

[0012] Preferably, the bottom of the column extends into the bottom of the reinforced concrete foundation on the ground, and the bottom of the column is provided with an anti-pull-out embedded part; and / or, the column is a rectangular steel pipe.

[0013] Preferably, the anti-pull-out embedded part includes an anti-pull-out rib protruding outward from the bottom of the column.

[0014] Preferably, the column includes a main section and a bottom extension section welded to the bottom end of the main section. Angle steel is welded to the four corners of the splicing node between the main section and the bottom extension section, and the splicing node is embedded inside the reinforced concrete short column.

[0015] In addition, this utility model also provides a photovoltaic support structure, including the aforementioned combined foundation.

[0016] The present invention adopts the above technical solution and has the following beneficial effects:

[0017] 1. This utility model provides a reinforced concrete foundation suitable for mountain foundations. Due to the eccentricity between the reinforced concrete short columns and the foundation platform, and to avoid the risk of power station overturning, the rock anchor bolt foundation includes drilled rock and anchor bolts embedded in the drilled holes, thus possessing strong tensile strength. Furthermore, since the power station foundation is built on a mountain with a rock stratum as the bearing layer, excavation is difficult; therefore, the above-ground reinforced concrete foundation is placed above ground level (±0.000). The anchor bolts can be positioned on the tension side of the above-ground reinforced concrete foundation. Because the upper end of the anchor bolt is connected to the anchor bolt fixing reinforcement, and the anchor bolt fixing reinforcement is embedded in the above-ground reinforced concrete foundation, the rock anchor bolt foundation and the above-ground reinforced concrete foundation are formed as a single structure through the reinforced concrete structure. This effectively secures the above-ground reinforced concrete foundation, thus avoiding the risk of power station overturning due to excessive pull-out force on one side of the foundation caused by excessive eccentricity between the columns and the foundation caused by terrain limitations or construction deviations.

[0018] 2. The anchor bolt fixing reinforcement includes vertically extending anchor bolt fixing longitudinal bars and anchor bolt fixing transverse bars that are perpendicularly intersecting and connected to the anchor bolt fixing longitudinal bars. The anchor bolt and the anchor bolt fixing longitudinal bars are an integral structure. In this way, the overturning anchor bolt and the anchor bolt fixing longitudinal bars extend into the above-ground reinforced concrete foundation as a whole, and are then fixed together by the anchor bolt fixing transverse bars to form a crisscrossing anchor bolt fixing reinforcement system. This system combines with the rock mass to form a rock mass anchor bolt foundation, which is then firmly integrated with the above-ground reinforced concrete foundation.

[0019] 3. The foundation platform is rectangular, with longitudinal reinforcement bars fixed around the perimeter by anchor bolts, which are then connected by transverse reinforcement bars to form a crisscrossing anchor bolt reinforcement system. This system is integrated with the foundation platform, resulting in a relatively stable structure. Because the transverse reinforcement bars form a rectangle and are spaced at least two layers vertically, anchor bolt reinforcement bars are installed along the entire height of the foundation platform, ensuring that the rock mass anchor bolt foundation and the above-ground reinforced concrete foundation are firmly integrated into a single structure through the reinforced concrete structure.

[0020] 4. The reinforced concrete short column is located inside the rectangle formed by the anchor bolt fixing cross bars, so that the bottom of the reinforced concrete short column is also firmly connected with the rock anchor bolt foundation, thus enhancing the integrity of the column, the rock anchor bolt foundation and the above-ground reinforced concrete foundation.

[0021] 5. The bottom of the above-ground reinforced concrete foundation is provided with a plain concrete pad layer. Its function is to make the surface flat so that it is easy to tie the reinforcing bars on it, and also to protect the reinforced concrete foundation. The plain concrete pad layer is constructed using plain concrete and does not require reinforcement.

[0022] 6. The above-ground reinforced concrete foundation has a bottom steel mesh consisting of vertically intersecting transverse and longitudinal bottom bars laid on top of the plain concrete pad to ensure the stability of the foundation's bottom structure. Additionally, the reinforced concrete short columns are rectangular, with internal short column stirrups forming the rectangle and short column longitudinal bars located at the four corners of the rectangle and connected to the stirrups. The bottom of the short column longitudinal bars is located above the plain concrete pad and also above the bottom steel mesh. Therefore, the bottom of the reinforcing cage of the reinforced concrete short column is embedded at the bottom of the foundation platform, thus combining the reinforced concrete short column and the foundation platform into a single above-ground reinforced concrete foundation structure. Furthermore, because the bottom of the column is embedded in the reinforced concrete short column, and the bottom of the column extends into the bottom of the above-ground reinforced concrete foundation, the column and the above-ground reinforced concrete foundation are firmly integrated. Combined with the anchoring effect of the rock mass anchor bolt foundation, even if there is excessive eccentricity between the column and the foundation's centroid, the risk of power station overturning can be avoided.

[0023] 7. To prevent the photovoltaic support column from detaching from the reinforced concrete foundation under pull-out force, an anti-pull-out embedded part is provided at the bottom of the column. Furthermore, the anti-pull-out embedded part includes anti-pull-out ribs protruding outward from the bottom of the column. By setting multiple anti-pull-out ribs, the bonding force between the bottom of the column and the reinforced concrete foundation is enhanced, preventing the column from detaching from the reinforced concrete foundation under pull-out force.

[0024] 8. To facilitate transportation and handling, the length of a single piece of material used for photovoltaic support is generally set at around 6 meters. When the height of the photovoltaic support column exceeds 6 meters, it is unavoidable to weld the material to extend it. To ensure the structural safety of the splicing joint under tension, bending, and shear, the column includes a main section and a bottom extension section welded to the bottom end of the main section. Angle steel is welded to the four corners of the splicing joint between the main section and the bottom extension section, and the splicing joint is embedded inside the reinforced concrete short column to ensure the structural strength at the splicing joint.

[0025] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0026] The utility model will be further described below with reference to the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of a reinforced concrete foundation suitable for mountain foundations according to the present invention;

[0028] Figure 2 This is a construction drawing of the rock mass anchor bolt foundation in this utility model;

[0029] Figure 3 for Figure 2 Sectional view 1-1;

[0030] Figure 4 for Figure 2 Sectional view 2-2;

[0031] Figure 5 This is a construction drawing of the above-ground reinforced concrete foundation in this utility model;

[0032] Figure 6 for Figure 5 Sectional view 1-1;

[0033] Figure 7 This is a schematic diagram of the column splicing node in this utility model;

[0034] Figure 8 This is a schematic diagram of the column splicing node in this utility model;

[0035] Figure 9 This is a schematic diagram of the column splicing node in this utility model;

[0036] Figure 10 A schematic diagram showing the anti-pull-out ribs installed at the bottom of the column in this utility model;

[0037] Figure 11 This is a simplified diagram for force analysis;

[0038] Figure reference numerals: Rock mass anchor bolt foundation 1, Rock mass 10, Anchor bolt 11, Grouting material 12, Anchor bolt fixing longitudinal reinforcement 13, Anchor bolt fixing transverse reinforcement 14, Above-ground reinforced concrete foundation 2, Foundation platform 21, Reinforced concrete short column 22, Plain concrete cushion layer 23, Transverse bottom reinforcement 24, Longitudinal bottom reinforcement 25, Short column stirrups 26, Short column longitudinal reinforcement 27, Column 3, Main section 31, Bottom extension section 32, Angle steel 33, Anti-pull-out reinforcement 34. Detailed Implementation

[0039] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0040] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0041] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "horizontal," and "vertical" that indicate orientation or positional relationship are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0044] Reference Figures 1 to 10 As shown, this embodiment provides a reinforced concrete foundation suitable for mountain foundations, including a rock mass anchor bolt foundation 1 and an above-ground reinforced concrete foundation 2. The rock mass anchor bolt foundation 1 includes a rock mass 10 with drilled holes, an anchor bolt 11 anchored into the drilled holes, and an anchor bolt fixing steel bar connected to the upper end of the anchor bolt. The anchor bolt fixing steel bar is embedded in the above-ground reinforced concrete foundation 2. The above-ground reinforced concrete foundation 2 includes a foundation platform 21 and a reinforced concrete short column 22 that is offset from the centroid of the foundation platform and extends vertically upward. The bottom of the photovoltaic support column 3 is embedded in the reinforced concrete short column 22.

[0045] Alternatively, existing technologies can be used to inject grout 12, such as cement mortar or fine aggregate concrete, into the borehole to fix the anchor bolt 11.

[0046] Because the reinforced concrete short columns and their columns are eccentric to the centroid of the foundation platform, in order to avoid the risk of power station overturning, the rock mass anchor bolt foundation includes rock mass with drilled holes and anchor bolts anchored into the drilled holes. Therefore, the rock mass anchor bolt foundation has strong tensile strength.

[0047] Because the power station's foundation is built on a mountainside with rock as the bearing layer, excavation is difficult. Therefore, the above-ground reinforced concrete foundation is placed above ground level (±0.000). Anchor bolts are installed on the tension side of the above-ground reinforced concrete foundation. Since the upper end of the anchor bolt is connected to the anchor bolt fixing reinforcement, and this fixing reinforcement is embedded in the above-ground reinforced concrete foundation, the rock anchor bolt foundation and the above-ground reinforced concrete foundation are formed as a single structure. This effectively secures the above-ground reinforced concrete foundation, thus avoiding the risk of the power station overturning due to excessive pull-out force on the right side of the foundation caused by excessive eccentricity between the column and the foundation caused by terrain limitations or construction deviations.

[0048] In some embodiments, the anchor bolt fixing reinforcement includes vertically extending anchor bolt fixing longitudinal bars 13 and anchor bolt fixing transverse bars 14 perpendicularly intersecting the anchor bolt fixing longitudinal bars 13, wherein the anchor bolt 11 and the anchor bolt fixing longitudinal bars 13 are an integral structure. Furthermore, both the anchor bolt 11 and the anchor bolt fixing reinforcement are made of threaded steel. Thus, the overturning anchor bolt and the anchor bolt fixing longitudinal bars extend as a single unit into the above-ground reinforced concrete foundation, and are then fixed together by the anchor bolt fixing transverse bars, forming a crisscrossing anchor bolt fixing reinforcement system. This system integrates with the rock mass, forming a rock mass anchor bolt foundation, which is then firmly integrated with the above-ground reinforced concrete foundation.

[0049] In some embodiments, the foundation platform 21 is a rectangular platform, with the anchor bolt fixing horizontal reinforcement 14 forming a rectangle and arranged in at least two layers at vertical intervals. The anchor bolt fixing longitudinal reinforcement 13 is located at the four corners of the rectangle and distributed at intervals along the sides. The rectangular foundation platform, with anchor bolt fixing longitudinal reinforcement around its perimeter and connected by anchor bolt fixing horizontal reinforcement, provides a relatively stable structure. Because the anchor bolt fixing horizontal reinforcement forms a rectangle and is arranged in at least two layers at vertical intervals, anchor bolt fixing reinforcement is provided along the entire height of the foundation platform, ensuring that the rock mass anchor bolt foundation and the above-ground reinforced concrete foundation are firmly integrated into a single structure through the reinforced concrete structure. Furthermore, the reinforced concrete short column portion is located inside the rectangle formed by the anchor bolt fixing horizontal reinforcement, thus forming a firm connection between the bottom of the reinforced concrete short column and the rock mass anchor bolt foundation, further enhancing the integration of the column, the rock mass anchor bolt foundation, and the above-ground reinforced concrete foundation.

[0050] The bottom of the above-ground reinforced concrete foundation 2 is provided with a plain concrete pad 23. Its function is to make the surface flat so that it is easy to tie the reinforcing bars on it, and also to protect the reinforced concrete foundation. The plain concrete pad is constructed using plain concrete and does not require reinforcement.

[0051] In some embodiments, the above-ground reinforced concrete foundation 2 has a bottom steel mesh consisting of vertically intersecting transverse bottom bars 24 and longitudinal bottom bars 25 laid above the plain concrete pad 23 to ensure the stability of the bottom structure of the above-ground reinforced concrete foundation. The reinforced concrete short column 22 is rectangular, with short column stirrups 26 forming the rectangle inside and short column longitudinal bars 27 located at the four corners of the rectangle and connected to the short column stirrups. The bottom of the short column longitudinal bars is located above the plain concrete pad and also above the bottom steel mesh. Therefore, the bottom of the steel cage of the reinforced concrete short column 22 is embedded in the bottom of the foundation platform 21, so that the reinforced concrete short column 22 and the foundation platform 21 are combined into an integrated structure of above-ground reinforced concrete foundation. Since the bottom of the column is embedded in the reinforced concrete short column, the bottom of the column extends into the bottom of the above-ground reinforced concrete foundation, so the column and the above-ground reinforced concrete foundation are firmly integrated. Combined with the anchoring effect of the rock mass anchor bolt foundation, even if the centroid of the column and the foundation is too eccentric, the risk of power station overturning can be avoided.

[0052] To prevent the photovoltaic support column from detaching from the reinforced concrete foundation under pull-out force, an anti-pull-out embedded part is provided at the bottom of the column 3. The column 3 is a rectangular steel pipe. The anti-pull-out embedded part includes several anti-pull-out ribs 34 protruding outward from the bottom of the column. These ribs can be square steel pipes and are welded and fixed to the bottom of the column. The location of the anti-pull-out embedded part at the bottom of the column is completely inside the reinforced concrete foundation, below the surface of the foundation. By setting multiple anti-pull-out ribs, the bonding force between the bottom of the column and the reinforced concrete foundation is enhanced, preventing the column from detaching from the foundation under pull-out force.

[0053] To facilitate transportation and handling, the length of a single piece of material used for photovoltaic support is generally set at around 6 meters. When the height of the photovoltaic support column exceeds 6 meters, it is unavoidable to weld and extend the material to ensure the structural safety of the splicing joint under tension, bending, and shear. The column 3 includes a main section 31 and a bottom extension section 32 welded to the bottom end of the main section. As described above, the column is a rectangular steel pipe. Angle steel 33 is welded to the four corners of the splicing joint between the main section 31 and the bottom extension section 32, and the splicing joint is embedded inside the reinforced concrete short column. The splicing joint must be anchored into the reinforced concrete short column for at least 300mm to ensure the structural strength at the splicing joint. It is understood that when the column has a bottom extension section and anti-pull-out ribs, the anti-pull-out ribs 34 are located at the bottom of the bottom extension section 32.

[0054] Because the photovoltaic support columns in photovoltaic power stations are located near mountain slopes or building edges, excessive eccentricity between the column and the foundation is unavoidable. Figures 2 to 4 As shown, the upper loads are all applied to the left side of the foundation, posing a risk of the power station overturning. Figure 11As shown in (a) and (b), the load transmitted from the upper support to the bottom of the foundation (hereinafter referred to as the base) is: (1) Axial force N = Fk + Gk, where Fk is the vertical force transmitted from the upper structure to the top surface of the foundation under the standard combination of actions; Gk is the self-weight of the foundation. (2) Bending moment M = (Fk + Gk) * e + M1, where M1 is the bending moment transmitted from the upper support to the foundation; (Fk + Gk) * e is the bending moment generated on the foundation by the axial force due to eccentricity. Figure 11 As shown in (c), the axial force N = Fk + Gk generates a uniform compressive stress of PkN on the substrate. Figure 11 As shown in (d), the bending moment M = (Fk + Gk) * e + M1 generates a compressive stress of PkM on the left side of the base and a tensile stress of -PkM on the right side of the column base. Under large eccentricity, PkN < PkM. According to the principle of stress superposition, a compressive stress of Pkmax = PkN + PkM > 0 is generated on the left side of the base, and a tensile stress of Pkmax = PkN - PkM < 0 is generated on the right side of the base. Figure 11 As shown in (e), the tensile stress generated on the right side of the foundation could lead to a risk of the foundation overturning to the left. In this invention, the rock anchor bolt foundation is anchored into the rock mass and has strong tensile strength. By placing the anchor bolt on the tension side of the reinforced concrete foundation on the ground, it can effectively fix the reinforced concrete foundation on the ground and prevent the risk of the power station overturning due to excessive pull-out force on the right side of the foundation.

[0055] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A reinforced concrete foundation suitable for mountain foundations, characterized in that, The system includes a rock mass anchor bolt foundation and an above-ground reinforced concrete foundation. The rock mass anchor bolt foundation includes a rock mass with drilled holes, an anchor bolt inserted into the drilled holes, and an anchor bolt fixing steel bar connected to the upper end of the anchor bolt. The anchor bolt fixing steel bar is embedded in the above-ground reinforced concrete foundation. The above-ground reinforced concrete foundation includes a foundation platform and short reinforced concrete columns that extend vertically upwards from the centroid of the foundation platform. The bottom of the photovoltaic support column is embedded in the short reinforced concrete column.

2. A reinforced concrete foundation suitable for mountain foundations according to claim 1, characterized in that, The anchor bolt fixing reinforcement includes vertically extending anchor bolt fixing longitudinal bars and anchor bolt fixing transverse bars that are perpendicularly connected to the anchor bolt fixing longitudinal bars. The anchor bolt and the anchor bolt fixing longitudinal bars are an integral structure.

3. A reinforced concrete foundation suitable for mountain foundations according to claim 2, characterized in that, The foundation platform is a rectangular platform. The anchor bolt fixing horizontal bars form a rectangle and are arranged at least two layers at intervals along the vertical direction. The anchor bolt fixing longitudinal bars are located at the four corners of the rectangle and are distributed at intervals along the sides of the rectangle.

4. A reinforced concrete foundation suitable for mountain foundations according to claim 3, characterized in that, The anchor bolt and the anchor bolt fixing reinforcement are made of threaded steel; and / or, the reinforced concrete short column portion is located inside the rectangle formed by the anchor bolt fixing horizontal reinforcement.

5. A reinforced concrete foundation suitable for mountain foundations according to claim 1, characterized in that, The bottom of the above-ground reinforced concrete foundation is provided with a plain concrete cushion layer.

6. A reinforced concrete foundation suitable for mountain foundations according to claim 5, characterized in that, The above-ground reinforced concrete foundation has vertically intersecting transverse bottom bars and longitudinal bottom bars laid on top of the plain concrete pad; and / or, the reinforced concrete short column is rectangular, with short column stirrups forming the rectangle inside and short column longitudinal bars located at the four corners of the rectangle and connected to the short column stirrups, and the bottom of the reinforced concrete short column is located on top of the plain concrete pad.

7. A reinforced concrete foundation suitable for mountain foundations according to claim 1, characterized in that, The bottom of the column extends into the bottom of the reinforced concrete foundation on the ground, and the bottom of the column is provided with an anti-pull-out embedded part; and / or, the column is a rectangular steel pipe.

8. A reinforced concrete foundation suitable for mountain foundations according to claim 7, characterized in that, The anti-pull-out embedded part includes an anti-pull-out rib that protrudes outward from the bottom of the column.

9. A reinforced concrete foundation suitable for mountain foundations according to claim 7, characterized in that, The column includes a main section and a bottom extension section welded to the bottom end of the main section. Angle steel is welded to the four corners of the splicing node between the main section and the bottom extension section, and the splicing node is embedded inside the reinforced concrete short column.

10. A photovoltaic support structure, characterized in that, Includes the foundation as described in any one of claims 1 to 9 and the column installed on the foundation.

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