Photovoltaic foundation suitable for silt foundation

Abstract

The invention discloses a photovoltaic foundation suitable for a silt foundation, belongs to the technical field of photovoltaic installation, and can solve the problem that an existing photovoltaic foundation is not suitable for the silt foundation. The foundation comprises a ground beam structure which is arranged on a foundation and comprises a plurality of cross beams and a plurality of longitudinal beams which are connected in a crossed mode; the lower surfaces of the cross beams and the longitudinal beams are positioned on the same plane; the plurality of stand columns are respectively arranged at a plurality of intersections of the plurality of cross beams and the plurality of longitudinal beams, and the bottom ends of the stand columns penetrate through the corresponding cross beams and the corresponding longitudinal beams and are inserted into the foundation; and the bracket is connected to the top ends of the plurality of upright posts and is used for supporting the photovoltaic module. The method is used for installing the photovoltaic module on the silt foundation.

Description

Technical Field

[0001] The invention relates to a photovoltaic foundation suitable for a muddy foundation, belonging to the technical field of photovoltaic installation. Background Art

[0002] At present, the photovoltaic foundation is mainly based on pile foundation. However, in the foundation with poor geological conditions such as silt, in order to ensure the supporting strength of the pile foundation, it is often necessary to drive long piles into the foundation, which leads to a significant increase in the material cost and installation cost of the photovoltaic foundation. At the same time, due to the weak bearing capacity of the silt foundation, the pile foundation is very likely to settle during operation, resulting in structural instability. Therefore, it is necessary to improve the photovoltaic foundation. Summary of the invention

[0003] The present invention provides a photovoltaic foundation suitable for a muddy foundation, which can solve the problem that the existing photovoltaic foundation is not suitable for a muddy foundation.

[0004] The present invention provides a photovoltaic foundation suitable for a muddy foundation, the foundation comprising: The ground beam structure is arranged on the foundation and includes a plurality of cross beams and a plurality of longitudinal beams which are cross-connected; the lower surfaces of the plurality of cross beams and the plurality of longitudinal beams are all located in the same plane; A plurality of columns are respectively arranged at a plurality of intersections of a plurality of cross beams and a plurality of longitudinal beams, and the bottom ends of the columns pass through the corresponding cross beams and the corresponding longitudinal beams and are inserted into the foundation; The bracket is connected to the top of multiple columns and is used to support photovoltaic modules.

[0005] Optionally, the plurality of transverse beams and the plurality of longitudinal beams are connected by mortise and tenon joints at their intersections.

[0006] Optionally, a first groove is provided at a position on the upper surface of the cross beam corresponding to the intersection, and a second groove is provided at a position on the lower surface of the longitudinal beam corresponding to the intersection; The cross beam and the longitudinal beam are engaged with each other by means of the first groove and the second groove to form a mortise and tenon connection.

[0007] Optionally, the column comprises: A foundation pile, the bottom end of which is inserted into the foundation, and the top end of which passes through the corresponding crossbeam and is located at the bottom of the corresponding first groove; A connecting pipe, the bottom end of which is inserted into the top end of the foundation pile, and the top end of which passes through the corresponding longitudinal beam; The supporting column has its bottom end sleeved on the top end of the connecting pipe, and its top end connected to the bracket.

[0008] Optionally, the basis further includes: A plurality of gravity blocks are arranged in the foundation and correspond to a plurality of columns one by one; the bottom ends of the columns are inserted into the corresponding gravity blocks.

[0009] Optionally, the basis further includes: A plurality of reinforcing beams are arranged on the foundation, and the reinforcing beams are cross-connected with a plurality of cross beams or a plurality of longitudinal beams; the lower surfaces of the plurality of reinforcing beams, the plurality of cross beams and the plurality of longitudinal beams are all located in the same plane.

[0010] Optionally, the basis further includes: A plurality of reinforcing columns are respectively arranged at a plurality of intersections of a plurality of reinforcing beams and a plurality of cross beams or a plurality of longitudinal beams; the top end of the reinforcing column is connected to the bracket, and the bottom end passes through the corresponding reinforcing beam and abuts against the corresponding cross beam or the corresponding longitudinal beam.

[0011] Optionally, the basis further includes: A plurality of reinforcing members correspond to a plurality of columns one by one; the reinforcing members are sleeved on the corresponding columns and connected to the corresponding columns, the corresponding cross beams and the corresponding longitudinal beams.

[0012] Optionally, the reinforcement member comprises: A top cover is sleeved on the corresponding column and is located on the upper surface of the corresponding cross beam and the corresponding longitudinal beam; A plurality of reinforcing rods are respectively arranged in a plurality of angles formed by the intersection of corresponding cross beams and corresponding longitudinal beams; the reinforcing rods are connected to the top cover, the corresponding cross beams and the corresponding longitudinal beams.

[0013] Optionally, the top of the column is provided with a plurality of embedded bolts, the bottom of the bracket is provided with a connecting rod, and the connecting rod is inserted into the top of the column and connected with the plurality of embedded bolts.

[0014] The beneficial effects that the present invention can produce include: The present invention increases the contact area between the photovoltaic foundation and the foundation by cross-arranging multiple cross beams and multiple longitudinal beams on the foundation, disperses the pressure load applied by the photovoltaic foundation to the foundation, and reduces the pressure on the foundation, thereby effectively preventing the photovoltaic foundation from settling on the foundation. In this way, the installation stability of the photovoltaic foundation can be ensured without increasing the length of the foundation piles, which is conducive to reducing the material cost and installation cost of the photovoltaic foundation. At the same time, the structures such as the cross beams, longitudinal beams, reinforcing beams, and gravity blocks of the present invention can all be prefabricated concrete components, so that batch manufacturing of each structure can be easily achieved, thereby further achieving the purpose of reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a photovoltaic foundation suitable for a muddy foundation provided in Example 1 of the present invention; Figure 2A schematic diagram of the installation of a photovoltaic foundation provided in Example 1 of the present invention; Figure 3 Schematic diagram of the installation of the connecting rod provided in Example 1 of the present invention Figure 4 A schematic structural diagram of a photovoltaic foundation applicable to a muddy foundation provided in Example 2 of the present invention; Figure 5 A schematic diagram of the installation of a gravity block provided in Example 2 of the present invention; Figure 6 A schematic diagram of the installation of a crossbeam provided in Embodiment 2 of the present invention; Figure 7 A schematic diagram of the installation of a longitudinal beam provided in Embodiment 2 of the present invention; Figure 8 A schematic diagram of the installation of a reinforcement beam provided in Example 2 of the present invention; Fig. 9 A schematic diagram of the installation of columns and reinforcement columns provided in Example 2 of the present invention. Reference numerals: 1. Horizontal beam; 2. Longitudinal beam; 3. Column; 31. Foundation pile; 32. Connecting pipe; 33. Support column; 34. Embedded bolts; 4. Reinforcement piece; 41. Top cover; 42. Reinforcement rod; 5. Bracket; 51. Connecting rod; 52. Flange; 6. Gravity block; 7. Reinforcement beam; 8. Reinforcement column. DETAILED DESCRIPTION

[0016] The present invention is described in detail below in conjunction with embodiments, but the present invention is not limited to these embodiments.

[0017] Embodiment 1 of the present invention provides a photovoltaic foundation suitable for a muddy foundation, such as Figure 1 and Figure 2 As shown, the foundation includes: The ground beam structure is arranged on the foundation, and includes a plurality of cross beams 1 and a plurality of longitudinal beams 2 which are cross-connected; the lower surfaces of the plurality of cross beams 1 and the plurality of longitudinal beams 2 are all located in the same plane; A plurality of columns 3 are respectively arranged at a plurality of intersections of the plurality of cross beams 1 and the plurality of longitudinal beams 2, and the bottom ends of the columns 3 pass through the corresponding cross beams 1 and the corresponding longitudinal beams 2 and are inserted into the foundation; The bracket 5 is connected to the top ends of the plurality of columns 3 and is used to support the photovoltaic modules.

[0018] By cross-arranging multiple cross beams 1 and multiple longitudinal beams 2 on the foundation, the contact area between the photovoltaic foundation and the foundation is increased, the pressure load applied by the photovoltaic foundation to the foundation is dispersed, and the pressure on the foundation is reduced, thereby effectively preventing the photovoltaic foundation from settling on the foundation; at the same time, by inserting the column 3 into the foundation, the structural strength and stability of the photovoltaic foundation can be enhanced.

[0019] Specifically, both the cross beam 1 and the longitudinal beam 2 can be precast concrete beams.

[0020] Specifically, the plurality of transverse beams 1 and the plurality of longitudinal beams 2 are connected by mortise and tenon joints at their intersections.

[0021] Specifically, the upper surface of the cross beam 1 has a first groove at a position corresponding to the intersection, and the lower surface of the longitudinal beam 2 has a second groove at a position corresponding to the intersection; The cross beam 1 and the longitudinal beam 2 are buckled with each other by means of the first groove and the second groove to form a mortise and tenon connection.

[0022] Specifically, the column 3 in the embodiment 1 may be a split column, and the column 3 may include: A foundation pile 31, the bottom end of which is inserted into the foundation, and the top end of which passes through the corresponding beam 1 and is located at the bottom of the corresponding first groove; A connecting pipe 32, the bottom end of which is inserted into the top end of the foundation pile 31, and the top end of which passes through the corresponding longitudinal beam 2; The support column 33 has its bottom end sleeved on the top end of the connecting pipe 32 , and its top end is connected to the bracket 5 .

[0023] Specifically, the connecting pipe 32 can be made of high-strength materials such as steel and composite materials. By providing the connecting pipe 32, the foundation pile 31 and the support column 33 can be connected, and the strength of the connection between the foundation pile 31 and the support column 33 can be enhanced to prevent the foundation pile 31 and the support column 33 from tilting or bending.

[0024] In Embodiment 1, the outer diameters of the foundation pile 31 and the support column 33 are larger than the outer diameter of the connecting tube 32. The bottom of the first groove has a first through hole penetrating the cross beam 1, and the top of the second groove has a second through hole penetrating the longitudinal beam 2, and the first through hole is coaxial with the second through hole. The inner diameter of the first through hole matches the outer diameter of the foundation pile 31, and the inner diameter of the second through hole matches the outer diameter of the connecting tube 32, that is, the inner diameter of the first through hole is larger than the inner diameter of the second through hole, and the outer diameter of the support column 33 is larger than the inner diameter of the second through hole.

[0025] In the first embodiment, after the support column 33 is sleeved on the connection pipe 32 , the bottom end thereof can abut against the upper surface of the longitudinal beam 2 .

[0026] Specifically, the column 3 in Example 1 can also adopt an integrated column, in which case the column 3 is an integral cylinder; accordingly, in this case, the inner diameters of the first through hole and the second through hole are the same and both match the outer diameter of the column 3.

[0027] Specifically, the basis may also include The plurality of reinforcing members 4 correspond to the plurality of upright posts 3 one by one. The reinforcing members 4 are sleeved on the corresponding upright posts 3 and connected to the corresponding upright posts 3 , the corresponding cross beams 1 and the corresponding longitudinal beams 2 .

[0028] By providing the reinforcing member 4 , the structural strength of the cross-connection between the cross beam 1 and the longitudinal beam 2 can be enhanced.

[0029] Specifically, the reinforcement member 4 may include: A top cover 41 is sleeved on the corresponding column 3 and is located on the upper surface of the corresponding cross beam 1 and the corresponding longitudinal beam 2; A plurality of reinforcing rods 42 are respectively arranged in a plurality of angles formed by the intersection of the corresponding cross beams 1 and the corresponding longitudinal beams 2 ; the reinforcing rods 42 are connected to the top cover 41 , the corresponding cross beams 1 and the corresponding longitudinal beams 2 .

[0030] Specifically, a plurality of ribs are provided on the top cover 41 and the reinforcing rod 42 , so as to enhance the structural strength of the top cover 41 and the reinforcing rod 42 .

[0031] In Example 1, the top cover 41 and the reinforcing rod 42 are fixedly connected by welding or other methods to form a complete reinforcing member 4. During installation, the top cover 41 of the reinforcing member 4 is sleeved on the corresponding supporting column 33, so that the reinforcing rod 42 is located within the angle formed by the intersection of the corresponding cross beam 1 and the corresponding longitudinal beam 2; then, cement mortar is poured into the gap between the top cover 41 and the supporting column 33 to achieve the connection between the top cover 41 and the supporting column 33; cement mortar is poured into the gap between the reinforcing rod 42 and the adjacent components to achieve the connection between the reinforcing rod 42 and the corresponding cross beam 1 and the corresponding longitudinal beam 2.

[0032] Specifically, Figure 3 As shown, the top of the column 3 is provided with a plurality of embedded bolts 34 , and the bottom of the bracket 5 is provided with a connecting rod 51 , which is inserted into the top of the column 3 and connected with the plurality of embedded bolts 34 .

[0033] Specifically, the top of the column 3 has a mounting hole, and a plurality of embedded bolts 34 are provided around the edge of the mounting hole. A flange 52 is fixedly sleeved on the connecting rod 51. When the connecting rod 51 is inserted into the mounting hole at the top of the column 3, the flange 52 is connected to the plurality of embedded bolts 34, so that the connecting rod 51 can be fixed in the mounting hole, thereby installing the bracket 5 on the top of the column 3.

[0034] Specifically, the present embodiment 1 does not limit the number of structures such as the cross beam 1 , the longitudinal beam 2 , and the column 3 , and can be flexibly determined according to the actual project.

[0035] Specifically, Figure 2 As shown, the installation steps of Example 1 are as follows (taking a photovoltaic foundation including two cross beams 1, two longitudinal beams 2 and four columns 3 as an example): (1) Two beams 1 are placed on the foundation, and then four foundation piles 31 are respectively passed through the four first through holes on the two beams 1 and driven into the foundation. The inner diameter of the first through hole is slightly larger than the outer diameter of the foundation pile 31, which can play an auxiliary positioning role during the installation of the foundation pile 31 and reduce the difficulty of positioning the foundation pile 31.

[0036] (2) A connecting tube 32 is inserted into the top of each foundation pile 31, and then the four second through holes on the two longitudinal beams 2 are respectively passed through the corresponding connecting tubes 32, and the second grooves on the longitudinal beams 2 are interlocked with the corresponding first grooves on the cross beams 1 to achieve the mortise and tenon connection between the two cross beams 1 and the two longitudinal beams 2. The inner diameter of the second through hole is slightly larger than the outer diameter of the connecting tube 32, and the connecting tube 32 can play a positioning role during the installation process of the longitudinal beams 2.

[0037] (3) The bottom end of the support column 33 is sleeved onto the top end of the connecting pipe 32 so that the bottom end of the support column 33 abuts against the upper surface of the longitudinal beam 2 .

[0038] (4) The reinforcing members 4 are sleeved on the supporting columns 33 , and the reinforcing members 4 are connected to the corresponding columns 3 , the corresponding cross beams 1 , and the corresponding longitudinal beams 2 .

[0039] (5) Insert the connecting rod 51 at the bottom of the bracket 5 into the top of the support column 33 , and connect the connecting rod 51 to the multiple embedded bolts 34 at the top of the support column 33 .

[0040] Embodiment 2 of the present invention provides another photovoltaic foundation suitable for a muddy foundation. Embodiment 2 is based on Embodiment 1 and improves Embodiment 1.

[0041] Specifically, Figure 4 As shown, the foundation may also include: A plurality of gravity blocks 6 are arranged in the foundation, corresponding one to one with the plurality of columns 3 ; the bottom ends of the columns 3 are inserted into the corresponding gravity blocks 6 .

[0042] Specifically, the gravity block 6 can be a prefabricated concrete block, a hole matching the bottom end of the column 3 is opened on the top of the gravity block 6 , and the bottom end of the column 3 is inserted into the hole on the top end of the gravity block 6 .

[0043] By setting the gravity block 6, the foundation can be compacted and excess water in the foundation can be removed, reducing the porosity of the foundation, thereby enhancing the bearing capacity of the foundation, providing better support for the column 3, and preventing the photovoltaic foundation from further settling.

[0044] Specifically, the foundation may also include: A plurality of reinforcing beams 7 are arranged on the foundation, and the reinforcing beams 7 are cross-connected with the plurality of cross beams 1 or the plurality of longitudinal beams 2; the lower surfaces of the plurality of reinforcing beams 7, the plurality of cross beams 1 and the plurality of longitudinal beams 2 are all located in the same plane.

[0045] Specifically, the reinforcement beam 7 may be a precast concrete beam.

[0046] In Embodiment 2, the reinforcing beam 7 and the cross beam 1 or the longitudinal beam 2 , as well as the multiple reinforcing beams 7 , are all connected by mortise and tenon joints.

[0047] Specifically, the mortise and tenon connection between the reinforcing beam 7 and the cross beam 1 or the longitudinal beam 2, and the mortise and tenon connection between multiple reinforcing beams 7 are similar to the mortise and tenon connection between the cross beam 1 and the longitudinal beam 2, that is, a groove buckling method is adopted.

[0048] Specifically, the foundation may also include: Multiple reinforcing columns 8 are respectively arranged at multiple intersections of multiple reinforcing beams 7 and multiple cross beams 1 or multiple longitudinal beams 2; the top end of the reinforcing column 8 is connected to the bracket 5, and the bottom end passes through the corresponding reinforcing beam 7 and abuts against the corresponding cross beam 1 or the corresponding longitudinal beam 2.

[0049] Specifically, the reinforcing beam 7 has a third through hole, and the reinforcing column 8 passes through the third through hole on the reinforcing beam 7 to abut against the corresponding cross beam 1 or the corresponding longitudinal beam 2 .

[0050] Specifically, multiple reinforcing beams 7 may be cross-connected, and reinforcing columns 8 may be arranged at the intersections of multiple reinforcing beams 7. At this time, the top end of the reinforcing column 8 is connected to the bracket 5, and the bottom end passes through the reinforcing beam 7 at the upper layer and abuts against the reinforcing beam 7 at the lowest layer.

[0051] In Example 2, two reinforcing beams 7 are connected by mortise and tenon joints at their intersections, and a reinforcing column 8 is provided at the intersection of the two reinforcing beams 7. The reinforcing column 8 passes through the reinforcing beam 7 located at the upper layer and abuts against the reinforcing beam 7 located at the lower layer.

[0052] Specifically, the column 3 in Embodiment 2 is an integrated column.

[0053] Specifically, Figures 5 to 9 As shown, the installation steps of Example 2 are as follows (taking a photovoltaic foundation including four gravity blocks 6, two cross beams 1, two longitudinal beams 2, two reinforcing beams 7, four columns 3 and five reinforcing columns 8 as an example): (1) four gravity blocks 6 are arranged in the foundation; (2) placing two crossbeams 1 on four gravity blocks 6, and aligning the first through holes on the crossbeams 1 with the corresponding holes on the gravity blocks 6; (3) Install two longitudinal beams 2 on the two transverse beams 1, and align the second through holes on the longitudinal beams 2 with the first through holes on the transverse beam 1; (4) Install a reinforcing beam 7 between the two longitudinal beams 2 on the two transverse beams 1; (5) Install another reinforcing beam 7 on the two longitudinal beams 2 and one reinforcing beam 7; (6) Insert the bottom ends of the four columns 3 through the corresponding second through holes and the first barrel holes in sequence and then insert them into the corresponding gravity blocks 6; (7) The bottom ends of the four reinforcing columns 8 are respectively passed through the corresponding reinforcing beams 7 and abutted against the corresponding cross beams 1 or the corresponding longitudinal beams 2; and a reinforcing column 8 is installed at the intersection of two reinforcing beams 7, and the bottom end of the reinforcing column 8 passes through the reinforcing beam 7 on the upper layer and abuts against the reinforcing beam 7 on the lower layer; (8) The reinforcing member 4 is sleeved on the column 3 and the reinforcing column 8, and the reinforcing member 4 is connected to the adjacent components by pouring cement mortar into the gap between the reinforcing member 4 and the adjacent components; (9) Insert the connecting rod 51 at the bottom of the bracket 5 into the top of the column 3 , and connect the connecting rod 51 to the multiple embedded bolts 34 at the top of the column 3 .

[0054] During actual installation, the gravity block 6 can also be placed on the foundation. After the photovoltaic foundation is installed, the photovoltaic foundation settles on the foundation, and the gravity block 6 settles into the foundation, and the cross beam 1, the longitudinal beam 2 and the reinforcing beam 7 settle to contact the foundation. At this time, since the contact area between the photovoltaic foundation and the foundation increases, the pressure load on the foundation is dispersed, and the gravity block 6 enhances the bearing capacity of the foundation, the photovoltaic foundation will no longer continue to settle, thereby ensuring the installation stability of the photovoltaic foundation.

[0055] The above are only a few embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A photovoltaic foundation suitable for a muddy foundation, characterized in that: The foundations include: The ground beam structure is arranged on the foundation and includes a plurality of cross beams and a plurality of longitudinal beams which are cross-connected; the lower surfaces of the plurality of cross beams and the plurality of longitudinal beams are all located in the same plane; A plurality of columns are respectively arranged at a plurality of intersections of a plurality of cross beams and a plurality of longitudinal beams, and the bottom ends of the columns pass through the corresponding cross beams and the corresponding longitudinal beams and are inserted into the foundation; The bracket is connected to the top of multiple columns and is used to support photovoltaic modules.

2. The basis according to claim 1, characterized in that The plurality of cross beams and the plurality of longitudinal beams are connected by mortise and tenon joints at their intersections.

3. The basis according to claim 2, characterized in that The upper surface of the cross beam has a first groove at a position corresponding to the intersection, and the lower surface of the longitudinal beam has a second groove at a position corresponding to the intersection; The cross beam and the longitudinal beam are engaged with each other by means of the first groove and the second groove to form a mortise and tenon connection.

4. The basis according to claim 3, characterized in that The column comprises: A foundation pile, the bottom end of which is inserted into the foundation, and the top end of which passes through the corresponding crossbeam and is located at the bottom of the corresponding first groove; A connecting pipe, the bottom end of which is inserted into the top end of the foundation pile, and the top end of which passes through the corresponding longitudinal beam; The supporting column has its bottom end sleeved on the top end of the connecting pipe, and its top end connected to the bracket.

5. The foundation according to claim 3, characterized in that The foundation also includes: A plurality of gravity blocks are arranged in the foundation and correspond to a plurality of columns one by one; the bottom ends of the columns are inserted into the corresponding gravity blocks.

6. The foundation according to claim 5, characterized in that The foundation also includes: A plurality of reinforcing beams are arranged on the foundation, and the reinforcing beams are cross-connected with a plurality of cross beams or a plurality of longitudinal beams; the lower surfaces of the plurality of reinforcing beams, the plurality of cross beams and the plurality of longitudinal beams are all located in the same plane.

7. The foundation according to claim 6, characterized in that The foundation also includes: A plurality of reinforcing columns are respectively arranged at a plurality of intersections of a plurality of reinforcing beams and a plurality of cross beams or a plurality of longitudinal beams; the top end of the reinforcing column is connected to the bracket, and the bottom end passes through the corresponding reinforcing beam and abuts against the corresponding cross beam or the corresponding longitudinal beam.

8. The foundation according to claim 1, characterized in that The foundation also includes: A plurality of reinforcing members correspond to a plurality of columns one by one; the reinforcing members are sleeved on the corresponding columns and connected to the corresponding columns, the corresponding cross beams and the corresponding longitudinal beams.

9. The foundation according to claim 8, characterized in that The reinforcement member comprises: A top cover is sleeved on the corresponding column and is located on the upper surface of the corresponding cross beam and the corresponding longitudinal beam; A plurality of reinforcing rods are respectively arranged in a plurality of angles formed by the intersection of corresponding cross beams and corresponding longitudinal beams; the reinforcing rods are connected to the top cover, the corresponding cross beams and the corresponding longitudinal beams.

10. The foundation according to claim 1, characterized in that The top of the column is provided with a plurality of embedded bolts, and the bottom of the bracket is provided with a connecting rod, and the connecting rod is inserted into the top of the column and connected with the plurality of embedded bolts.

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