High slope photovoltaic support foundation

Abstract

The utility model relates to the technical field of photovoltaic power generation, and discloses a high-slope photovoltaic support foundation which comprises a slope, a reinforcing mesh laid on the slope, anchor rods drilled in the slope and connecting rods for connecting a photovoltaic support and the anchor rods. A plurality of vertical positioning steel bars are fixedly arranged on the periphery of the lower end of the connecting rod, the lower ends of the positioning steel bars extend downwards and are fixed to the reinforcing mesh, and a reinforced base poured with concrete is fixedly arranged at the joint of the lower end of the connecting rod and the upper end of the anchor rod. In addition, a reinforcing mesh is poured in the reinforcing layer through concrete. The photovoltaic support foundation is simple in structure, improves the bearing capacity of the photovoltaic support foundation and the stability of a side slope, and is suitable for installation of a mountain photovoltaic support.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, and particularly relates to a high-slope photovoltaic support foundation. Background Art

[0002] Photovoltaic power stations cover a large area, and their construction sites require sufficient sunlight without obstruction. Currently, most of them are built in places with rich light resources such as rooftops, mountainsides, farmlands, deserts, and lakes. A photovoltaic support is a special support for installing and fixing solar photovoltaic modules. According to different construction sites, different types of support foundations are required to fix the photovoltaic support.

[0003] Currently, when building infrastructure such as factories and roads in mountainous areas, it is often necessary to cut mountains to create flat sites, which results in large-scale upper slopes and lower slopes. Such slopes need to be fixed through various forms of slope support methods. At the same time, since such slopes generally have no obstruction and have rich available light resources, they are suitable as sites for solar photovoltaic power stations. In the prior art, there has been a way to build the support foundation of a photovoltaic power station by combining the wire mesh used for slope support with the fixing of photovoltaic support anchor rods. However, in mountainous areas with complex geological conditions and high slopes, using such technology has problems such as poor bearing capacity of the photovoltaic support foundation, unstable slopes, and complex construction processes. Content of the Utility Model

[0004] To solve the above deficiencies in the prior art, the utility model aims to provide a high-slope photovoltaic support foundation to improve the bearing capacity of the photovoltaic support foundation on high mountain slopes and the stability of the slopes.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows: A high-slope photovoltaic support foundation includes a steel mesh laid on the slope, anchor rods drilled into the slope, and a connecting rod connecting the photovoltaic support and the anchor rods. A plurality of vertical positioning steel bars are fixedly arranged on the outer periphery of the lower end of the connecting rod. The lower ends of the positioning steel bars extend downward and are fixed on the steel mesh. A reinforcement base is fixedly arranged at the connection between the lower end of the connecting rod and the upper end of the anchor rod. The lower end of the connecting rod, the positioning steel bars, and the upper end of the anchor rod are located inside the reinforcement base. The anchor rod is a self-drilling hollow anchor rod, and the upper part of the anchor rod is fixed on the steel mesh. It also includes a reinforcement layer formed by pouring concrete with the steel mesh therein.

[0006] As a limitation to the utility model: The reinforcement base is a cube structure made of concrete casting.

[0007] As a limitation to the utility model: The cross-sectional dimension of the reinforcement base is 400mm×400mm.

[0008] As a limitation of the present utility model: the central axis of the connecting rod coincides with the central axis of the anchor rod, and a positioning bolt hole for connecting the photovoltaic support is provided at the upper end of the connecting rod.

[0009] As a limitation of the present utility model: the anchor rod is fixed to the steel mesh through the cooperation of a gasket and a nut, and the head at the lower end of the anchor rod is threadedly connected with an alloy drill bit.

[0010] As a limitation of the present utility model: the diameter of the anchor rod is not less than 50 mm, and the length of the anchor rod is 8 m to 15 m.

[0011] As a limitation of the present utility model: the thickness of the reinforcement layer is 100 mm to 200 mm.

[0012] As a limitation of the present utility model: the steel mesh is a mesh structure with a pore size of 200 mm × 200 mm composed of steel bars with a diameter of 8 mm.

[0013] As a limitation of the present utility model: the material of the connecting rod is weather-resistant steel pipe.

[0014] As a limitation of the present utility model: a number of photovoltaic support bases are arranged on the slope surface, and the lateral arrangement interval of the photovoltaic support bases is 3 m to 5 m, and the longitudinal arrangement interval is 2 m to 4 m.

[0015] Due to the adoption of the above technical solutions, compared with the prior art, the beneficial effects obtained by the present utility model are as follows:

[0016] (1) The present utility model is provided with a reinforcement base at the connection of the anchor rod and the connecting rod, making the main stress part of the photovoltaic support base more firm, and pouring a concrete reinforcement layer on the steel mesh to form an integral structure for the entire support base, and also playing a role in reinforcing and protecting the slope stability, avoiding soil erosion caused by rainwater scouring, etc., and improving the safety of the high slope;

[0017] (2) The present utility model applies the hollow anchor rod to the construction of photovoltaic power stations, which is beneficial to improving the construction speed in mountainous environments: the self-drilling anchor rod directly drills into the slope, without being pulled out and directly grouted with high slurry fullness; the connection heads of the hollow anchor rods can be arbitrarily combined to assemble various construction lengths to meet the requirements of construction equipment for complex terrains in mountains;

[0018] (3) The connecting rod of the present utility model adopts weather-resistant steel material instead of the traditional galvanized pipe fittings, making the components highly corrosion-resistant and having a long service life; the exposed section of the connecting rod at the reinforcement base can adopt any length according to the mountain slope and other conditions, and the connection method with the photovoltaic support can also be set in various ways.

[0019] In summary, the utility model has a simple structure and convenient construction. It uses the large-scale high slopes obtained by cutting mountains and filling valleys as the sites for photovoltaic power generation and effectively protects the slopes, and is applicable to the installation of mountain photovoltaic brackets. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0021] Figure 1 is a schematic structural diagram of the application state of the photovoltaic bracket foundation according to an embodiment of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the connection part between the anchor rod and the connecting rod according to an embodiment of the present utility model;

[0023] In the figure: 1 - slope, 2 - anchor rod, 21 - alloy drill bit, 22 - gasket, 23 - nut, 3 - steel mesh, 4 - connecting rod, 41 - positioning steel bar, 42 - positioning bolt hole, 5 - reinforcement base, 6 - reinforcement layer, 7 - photovoltaic bracket, 8 - photovoltaic panel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following describes the preferred embodiments of the present utility model with reference to the drawings. It should be understood that the high-slope photovoltaic bracket foundation described herein is a preferred embodiment, and is only used to illustrate and explain the present utility model, and does not constitute a limitation to the present utility model.

[0025] The orientation terms or positional relationships such as "upper", "lower", "left", "right", etc. described in the present utility model are based on the orientation relationship of the drawings of the specification of the present utility model, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the content protected by the present utility model.

[0026] Embodiment

[0027] As shown in this embodiment Figure 1 、 Figure 2 is a high-slope photovoltaic bracket foundation, including a slope 1, an anchor rod 2, a steel mesh 3, and a connecting rod 4. The steel mesh 3 is laid on the slope 1, the lower end of the anchor rod 2 with a drill bit is drilled into the slope 1, the upper end of the anchor rod 2 is fixed on the steel mesh 3, the top of the upper end of the anchor rod 2 is connected to the lower end of the connecting rod 4, and the upper end of the connecting rod 4 is used to connect with the photovoltaic bracket.

[0028] As shown in Figure 2As shown in the figure, the anchor rod 2 is a self-drilling hollow anchor rod. One end of the head of the anchor rod 2 is threadedly connected with an alloy drill bit 21, and a concrete injection hole (not shown in the figure) is provided at the alloy drill bit 21. The anchor rod 2 is drilled into the slope 1 at an angle perpendicular to the slope surface or close to perpendicular. The specifications such as the diameter and length of the anchor rod 2 can be selected according to the construction conditions. It is selected that the diameter of the anchor rod 2 is not less than 50 mm, and the length of the anchor rod 2 also needs to consider conditions such as strength requirements. Generally, the length is 8 m to 15 m. In this embodiment, the diameter of the anchor rod 2 is selected as 60 mm and the length is selected as 10 m. The photovoltaic support needs to drill several anchor rods 2 into the slope 1. The arrangement position of the anchor rods 2 on the slope surface of the slope 1 is the position of the photovoltaic support foundation, and further is the installation position of the photovoltaic support. The horizontal and vertical installation distances of the anchor rods 2 on the surface of the slope 1 match the installation distance of the photovoltaic support. The horizontal interval is 3 m to 5 m, and the vertical interval is 2 m to 4 m. Specifically, in this embodiment, the horizontal interval is 4.3 m and the vertical interval is 3 m. After the anchor rod 2 is drilled in accordance with the regulations, concrete slurry is injected into the anchor rod 2 and the holes around it through the middle hole. The concrete is preferably C30 concrete to complete the preliminary fixation of the anchor rod 2.

[0029] A steel mesh 3 is laid on the entire slope 1. In this embodiment, the steel mesh 3 is a mesh structure composed of steel bars with a diameter of 8 mm and a pore size of 200 mm×200 mm. The part of the anchor rod 2 exposed on the slope 1 is fixed to the steel mesh 3 through a gasket 22 and a nut 23 matching the anchor rod 2. Specifically, the cross-sectional area of the gasket 22 is larger than the cross-sectional area of the anchor rod 2. The gasket 22 is inserted into the anchor rod 2 and pressed down on the steel bar adjacent to the anchor rod 2, and then the nut 23 is tightened on the gasket 22 to complete the fixation of the anchor rod 2 and the steel mesh 3.

[0030] The connecting rod 4 is installed with the straight line where the central axis of the anchor rod 2 is located as the center. The lower end of the connecting rod 4 is connected to the upper end of the anchor rod 2 by welding. The upper end of the connecting rod 4 is provided with a positioning bolt hole 42 for connecting the photovoltaic support, and the positioning bolt hole 42 matches the connection part of the photovoltaic support to be installed. The diameter range of the connecting rod 4 is 80 mm to 100 mm. In this embodiment, the diameter of 89 mm is selected. To achieve the quick positioning and fixation of the connecting rod 4, a number of vertical positioning steel bars 41 are fixedly arranged on its outer periphery. The fixing method of the positioning steel bars 41 and the connecting rod 4 is welding. In this embodiment, 4 positioning steel bars 41 with the same length are provided. After the connecting rod 4 is placed in the correct position, the lower ends of the positioning steel bars 41 are inserted into the steel mesh 3 so that at least 1 of the positioning steel bars 41 contacts the steel mesh 3 and is welded and fixed to complete the positioning and preliminary fixation of the position of the connecting rod 4. In addition, the material of the connecting rod 4 is preferably weathering steel. Weathering steel has excellent corrosion resistance, is not galvanized and pollution-free, and can meet the strength requirements.

[0031] To strengthen the connection strength between the connecting rod 4 and the anchor rod 2, a reinforcement base 5 is provided at the connection of the connecting rod 4 and the anchor rod 2. The reinforcement base 5 is a cube structure cast with concrete, and the lower end of the connecting rod 4, the positioning steel bar 41, and the upper end of the anchor rod 2 can be cast in the reinforcement base 5. During specific construction, with the connecting rod 4 as the center, wooden formwork is installed around it. The cross-sectional dimension of the wooden formwork is set to 400mm×400mm, and the positioning bolt holes 42 at the upper end of the connecting rod 4 are exposed in the height direction. Then, concrete is poured into the established wooden formwork.

[0032] To further improve the safety of the slope 1 and strengthen the firmness of the photovoltaic support foundation, this embodiment further includes a reinforcement layer 6. The reinforcement layer 6 is a layer of concrete with a certain thickness cast on the steel mesh 3. The thickness of the reinforcement layer 6 can be selected from 100mm to 200mm, preferably 150mm. All the concrete in this embodiment is preferably C30 concrete.

[0033] When using this embodiment, determine the arrangement position of the photovoltaic support foundation according to the specifications of the solar photovoltaic panel and the shape of the slope 1. First, drill the anchor rod 2 and inject concrete on the slope 1 where the steel mesh 3 is laid according to the position. After the concrete solidifies, fix the anchor rod 2 to the steel mesh 3; then align the connecting rod 4 with the positioning steel bar 41 with the anchor rod 2 and fix it on the steel mesh 3, set up the casting formwork for the reinforcement base 5, and finally pour concrete to form an integrated reinforcement base 5 and reinforcement layer 6.

Claims

1. A high slope photovoltaic support foundation, comprising a steel mesh laid on the slope, an anchor rod drilled in the slope, and a connecting rod connecting the photovoltaic support and the anchor rod, characterized in that: A plurality of vertical positioning steel bars are fixed to the outer periphery of the lower end of the connecting rod, the lower end of the positioning steel bars extends downward and is fixed on the steel mesh, a reinforcement base is fixed at the connection between the lower end of the connecting rod and the upper end of the anchor rod, the lower end of the connecting rod, the positioning steel bars and the upper end of the anchor rod are located in the reinforcement base; the anchor rod is a self-drilling hollow anchor rod, the upper part of the anchor rod is fixed to the steel mesh; it also includes a reinforcement layer in which the steel mesh is cast with concrete.

2. A high slope photovoltaic support foundation according to claim 1, characterized in that: The reinforced base is a cubic structure cast in concrete.

3. A high slope photovoltaic support foundation according to claim 2, characterized in that: The cross-sectional dimensions of the reinforcement base are 400 mm×400 mm.

4. A high slope photovoltaic support foundation according to claim 1, characterized in that: The central axis of the connecting rod coincides with the central axis of the anchor rod, and a positioning bolt hole for connecting the photovoltaic bracket is provided at the upper end of the connecting rod.

5. The high slope photovoltaic support foundation according to claim 1, characterized in that: The anchor rod is fixed on the steel bar mesh by means of a gasket and a nut, and the head at the lower end of the anchor rod is threadedly connected to an alloy drill bit.

6. A high slope photovoltaic support foundation according to claim 5, characterized in that: The diameter of the anchor rod is not less than 50 mm, and the length of the anchor rod is 8 m to 15 m.

7. A high slope photovoltaic support foundation according to any one of claims 1 to 6, characterized in that: The thickness of the reinforcement layer is 100 mm to 200 mm.

8. A high slope photovoltaic support foundation according to claim 7, characterized in that: The steel mesh is a mesh structure composed of 8mm diameter steel bars with a pore size of 200mm×200mm.

9. A high slope photovoltaic support foundation according to claim 8, characterized in that: The material of the connecting rod is weather-resistant steel pipe.

10. A high slope photovoltaic support foundation according to any one of claims 1 to 6, 8 and 9, characterized in that: A plurality of photovoltaic support foundations are arranged on the slope surface, and the photovoltaic support foundations are arranged at intervals of 3m to 5m in the horizontal direction and 2m to 4m in the vertical direction.

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