Adjustable photovoltaic support foundation for prefabricated track of waste dump slope and use method of adjustable photovoltaic support foundation

Abstract

The invention discloses a dumping site slope prefabricated track adjustable photovoltaic support foundation and a use method, and belongs to the technical field of photovoltaic infrastructure, the dumping site slope prefabricated track adjustable photovoltaic support foundation comprises a prefabricated foundation arranged on a dumping site slope, and a photovoltaic support track structure is arranged on the prefabricated foundation; the slope top platform is provided with a plurality of fixing piles, the fixing piles are fixedly connected to the traction beam, and the slope toe is provided with a slope protection retaining wall; the photovoltaic frame track structure comprises a plurality of fixed tracks; the fixed track comprises a bottom plate and a top plate, and the bottom plate is provided with a fixing hole connected with a prefabricated foundation; a plurality of upper sliding rails are arranged on the top plate in a sliding mode and are U-shaped groove plates. And a traction cable is arranged among the traction beam, the upper sliding rail and the slope protection retaining wall. The traction cable is arranged to provide pulling force for the upper sliding rail, when large-range settlement or landslide occurs on the side slope of the dump, the traction cable can provide basic pulling force to ensure the stability of the upper sliding rail, and the upper sliding rail is adjusted by tensioning the traction cable to ensure that the photovoltaic panel is in a normal working state.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic infrastructure, and particularly relates to a precast track adjustable photovoltaic support foundation for a waste dump slope and a using method thereof. Background Art

[0002] The statements in this part only provide background technical information related to the present invention, and do not necessarily constitute prior art.

[0003] At present, the problem of land acquisition for photovoltaic projects is becoming increasingly severe. Although there are many idle lands, they have not been fully utilized, such as highway slopes, waste dump lands, etc. Making full use of idle lands can improve the comprehensive utilization efficiency of land. However, the soil mass of waste dump lands has the characteristics of under-consolidation, high randomness, heterogeneity, and instability. Under its own consolidation settlement or rainfall disturbance, local settlement, local small landslides, or large-scale settlement are likely to occur on the waste dump slope, resulting in huge risks in setting up photovoltaic projects on the waste dump.

[0004] Patent CN118531833A discloses an adjustable photovoltaic support foundation and a rectification construction method, including a precast cross-connection foundation and a one-word plate foundation. The precast cross-connection foundation passes through a pile body through a reserved pile hole. The top of the pile body is fixed with a pile cap, and a cover plate is arranged on the pile cap. The pile cap and the cover plate pass through a first external threaded rod, and a first threaded locking component is arranged between the first external threaded rod and the pile cap, and a second threaded locking component is arranged between the first external threaded rod and the cover plate. When the precast cross-connection foundation settles due to local settlement of the soil mass in the later stage, the first threaded locking component can be loosened, and a jacking device can be placed between the pile cap and the cover plate. The jacking device can lift the precast cross-connection foundation with settlement to achieve rectification.

[0005] Although the above solution can cope with local uneven settlement of the soil mass, when local small landslides or large-scale settlement occur in the waste dump soil mass induced by rainfall, it will cause the instability of the photovoltaic support foundation, thus unable to maintain the stable working state of the photovoltaic panel and causing damage to the photovoltaic panel. Summary of the Invention

[0006] Aiming at the above problems, the present invention provides a precast track adjustable photovoltaic support foundation for a waste dump slope and a using method thereof, which can maintain the stable working state of the photovoltaic panel and prevent damage to the photovoltaic panel when local small landslides or large-scale settlement occur in the waste dump soil mass.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] In a first aspect, a precast track adjustable photovoltaic support foundation for a waste dump slope is provided, including a precast foundation arranged on the waste dump slope, and a photovoltaic frame track structure arranged on the precast foundation; multiple fixed piles are arranged on the slope top platform, the fixed piles are fixedly connected to the traction beam, and a slope protection retaining wall is arranged at the slope foot;

[0009] The photovoltaic frame track structure includes multiple fixed tracks longitudinally arranged on the top of the precast foundation;

[0010] The fixed track includes a web, a bottom plate, and a top plate fixedly connected. Multiple fixing holes for connecting with the precast foundation are arranged on the bottom plate; multiple upper sliding tracks are slidably arranged on the top plate, and the upper sliding tracks are U-shaped groove plates; a traction cable is arranged between the traction beam, the upper sliding track, and the slope protection retaining wall.

[0011] Preferably, the precast foundation includes precast cross-connection foundations arranged in a rectangular array, and the precast cross-connection foundations are connected by precast one-word connection foundations; the precast cross-connection foundation includes a central square block, and four sides of the central square block are fixedly connected with positive connection groove blocks, and positive connection grooves are opened on the positive connection groove blocks.

[0012] Preferably, the precast one-word connection foundation includes a long strip block, and multiple fixing holes are arranged on the long strip block; anti-connection groove blocks are fixedly connected to both sides of the long strip block, and anti-connection grooves are opened on the anti-connection groove blocks; multiple connection holes are arranged in the positive connection groove and the anti-connection groove, and square head bolts pass through the connection holes.

[0013] Preferably, a through hole is opened in the middle of the central square block, a steel pipe pile is arranged in the through hole, and the steel pipe pile is arranged perpendicular to the slope surface; a pile cap plate is fixedly connected to the top of the steel pipe pile, and multiple connection holes are arranged between the pile cap plate and the central square block.

[0014] Preferably, with the surface where the positive connection groove or the anti-connection groove is located as the front, a notch is arranged on the reverse side of the connection hole, and the square head of the square head bolt is arranged in the notch.

[0015] Preferably, multiple avoidance grooves are arranged on the bottom surface of the bottom plate, the size of the avoidance groove is larger than the size of the precast cross-connection foundation, and the depth of the avoidance groove needs to be greater than the height after the square head bolt connection is completed, so as to ensure that the bottom plate can be closely attached to the top surface of the precast foundation.

[0016] Preferably, the upper sliding track includes a cross plate and two vertical plates, and two groups of sliding wheels are arranged on the cross plate, and each group includes two sliding wheels; two sliding grooves are arranged on the top surface of the fixed track, the distance between the two sliding wheels in the same group is equal to the distance between the two sliding grooves, and the sliding wheels slide in the sliding grooves.

[0017] Preferably, multiple threaded holes are arranged on the cross plate for connecting the support pedestal, and the support pedestal is used for connecting the support legs of the photovoltaic panel; locking grooves are reserved on the vertical plates, and several locking grooves are also arranged on both sides of the top plate of the fixed track, and the locking grooves are used for installing locking structures.

[0018] Preferably, a number of reserved holes for traction cables are provided on the traction beam and the slope protection retaining wall, and the positions of the reserved holes correspond to the fixed tracks; the traction cables are located at one end of the traction beam away from the slope protection retaining wall and are connected to the output end of the motor fixed on the slope top platform.

[0019] In a second aspect, a method for using the above-mentioned precast track adjustable photovoltaic support foundation for the waste dump slope is provided, which specifically includes:

[0020] When large-scale and relatively uniform settlement occurs in some areas, the traction cables provide basic tension between the upper sliding tracks to ensure stability. After ensuring the stability and safety of the slopes in the settlement areas, loosen the square head bolts between the precast foundation and the fixed track, between the precast foundations, and between the precast foundation and the steel pipe piles, remove the precast foundation and the upper structure at the settlement joint, divide the overall truss foundation into multiple local truss foundations, and then calculate each part separately to ensure that the anti-sliding and anti-overturning capabilities of each part meet the requirements; in the case where the existing components are not sufficient to provide enough resistance, add steel pipe piles on both sides of the corresponding steel pipe piles to hold the steel pipe piles under the precast foundation, or add a retaining wall structure at the bottom of the slope.

[0021] When local small landslides are induced by rainfall on the waste dump slope, the traction cables can provide basic tension between the upper sliding tracks to ensure stability. After ensuring the stability and safety of the slopes, remove the locking components between the upper sliding track and the fixed track to separate the upper sliding track from the fixed track, and then further tighten the upper sliding track and the traction cables connected to the traction beam through the motor to adjust the upper sliding track to ensure that the photovoltaic panels are at the normal working height.

[0022] Compared with the prior art, the advantages and positive effects of the present invention are:

[0023] The present invention combines a number of precast cross-connection foundations and precast one-word connection foundations to form basic units, and forms an overall structural system through a truss structure composed of multiple basic units. The whole structure is stressed and interconnected to form a relatively stable whole, which can better resist vertical loads and horizontal loads, and improve the ability of the entire photovoltaic power station to prevent potential instability such as landslides or uneven settlements.

[0024] The present invention sets a fixed track on the precast foundation, so that the upper sliding track is in contact with the surface of the fixed track and can slide along the fixed track through sliding wheels, and the position of the upper sliding track can be adjusted. A locking groove is reserved between the upper sliding track and the fixed track, and the upper sliding track is fixed through a locking structure.

[0025] The present invention provides a pulling force for the upper sliding track by arranging a pulling cable. After large - scale settlement or local small landslides occur on the waste dump slope, the pulling cable can provide a basic pulling force to ensure the stability of the upper sliding track, thereby ensuring the stability of the photovoltaic panels. After the slope is stable, the upper sliding track is separated from the fixed track, and then the pulling cable is tightened to adjust the upper sliding track to ensure that the photovoltaic panels are in a normal working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The attached drawings forming a part of this specification are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0027] Figure 1 is an overall schematic diagram of the photovoltaic support foundation of Embodiment 1 or Embodiment 2 of the present invention;

[0028] Figure 2 is an overall schematic diagram of the precast foundation of Embodiment 1 or Embodiment 2 of the present invention;

[0029] Figure 3 is a schematic diagram of the basic unit of Embodiment 1 or Embodiment 2 of the present invention;

[0030] Figure 4 is a schematic diagram of the precast cross - connection foundation of Embodiment 1 or Embodiment 2 of the present invention;

[0031] Figure 5 is a schematic diagram of the steel pipe pile of Embodiment 1 or Embodiment 2 of the present invention;

[0032] Figure 6 is a schematic diagram of the fixed track connecting the upper sliding track of Embodiment 1 or Embodiment 2 of the present invention;

[0033] Figure 7 is a schematic diagram of the upper sliding track of Embodiment 1 or Embodiment 2 of the present invention;

[0034] In the figures:

[0035] 1, precast cross - connection foundation; 2, precast one - word connection foundation; 3, steel pipe pile; 4, pile cap plate; 5, square - head bolt; 6, fixed track; 7, upper sliding track; 8, locking groove; 9, sliding wheel; 10, support pedestal; 11, fixed pile; 12, traction beam; 13, pulling cable; 14, slope protection retaining wall; 15, basic unit. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0037] The present invention will be described in detail below with reference to the accompanying drawings.

[0038] Embodiment 1

[0039] An adjustable photovoltaic bracket foundation for a precast track on a waste dump slope disclosed in this embodiment, as Figure 1 shown, includes a precast foundation, the precast foundation is arranged on the slope of the waste dump, a photovoltaic bracket track structure is arranged on the precast foundation, the photovoltaic bracket track structure provides support, and the photovoltaic bracket track structure is used for the support pedestal 10 of installing photovoltaic panels; a slope protection retaining wall 14 is arranged at the foot of the slope, which is used to assist the precast foundation to resist the influence of landslides and settlements, and prevent the precast foundation from sliding down along the slope; a plurality of fixed piles 11 are arranged on the slope top platform at the top of the slope, the tops of the plurality of fixed piles 11 are fixedly connected to the traction beam 12, and a plurality of traction cables 13 are connected between the traction beam 12 and the slope protection retaining wall 14. One end of each traction cable 13 away from the slope protection retaining wall 14 is connected to the output end of the motor fixedly arranged on the slope top platform. When the motor is started, the output end rotates to wind the traction cable 13, so that the traction cable 13 can be tightened. It can be understood that multiple motors are provided, each motor is connected to a traction cable, and the motor has a self-locking function to prevent the traction cable 13 from driving the output end to reverse after the motor is turned off; since the fixed piles 11 are arranged on the slope top platform at the top of the slope, when landslides or large-scale settlements occur on the slope surface, the fixed piles 11 will not be affected.

[0040] As Figure 2 shown, the precast foundation is composed of a plurality of precast cross-shaped connecting foundations 1 and a plurality of precast one-shaped connecting foundations 2 connected together. Specifically, both the precast cross-shaped connecting foundation 1 and the precast one-shaped connecting foundation 2 are made of reinforced concrete structures. The plurality of precast cross-shaped connecting foundations 1 are arranged in a rectangular array, and the precast cross-shaped connecting foundations 1 are connected by the precast one-shaped connecting foundations 2. As Figure 2 、 Figure 3 shown, taking the direction from the top of the slope to the foot of the slope as the longitudinal direction, the precast foundation includes a plurality of longitudinal basic units 15, and the plurality of basic units 15 are connected together to form a truss structure. Each basic unit 15 includes two rows of precast cross-shaped connecting foundations 1. It can be understood that photovoltaic panels are usually rectangular, and brackets need to be arranged at all four corners, so the basic unit 15 includes two rows of precast cross-shaped connecting foundations 1.

[0041] As Figure 2 、 Figure 3 、 Figure 4 shown, the precast cross-shaped connecting foundation 1 includes a central square block, four sides of the central square block are fixedly connected with positive connecting groove blocks, positive connecting grooves are opened on the positive connecting groove blocks, and a plurality of connecting holes are uniformly arranged in the positive connecting grooves. In this embodiment, four connecting holes are arranged in the positive connecting grooves. As Figure 2As shown in the figure, the prefabricated one - word connection foundation 2 includes a long strip block. Anti - connection groove blocks are fixedly connected to both sides of the long strip block. Anti - connection grooves are formed in the anti - connection groove blocks. The dimensions of the anti - connection grooves correspond to those of the positive connection grooves and are used to align and connect with the positive connection grooves. A plurality of connection holes are also evenly arranged in the anti - connection grooves, and the arrangement positions are the same as those of the connection holes in the positive connection grooves. After the connection holes in the positive connection groove and the anti - connection groove are aligned, square - head bolts 5 are passed through them to fix, realizing the connection between the prefabricated cross - connection foundation 1 and the prefabricated one - word connection foundation 2. As Figure 2 shown, two prefabricated cross - connection foundations 1 are connected by one prefabricated one - word connection foundation 2.

[0042] It can be understood that in this embodiment, the distance between prefabricated foundations can be controlled by the prefabricated one - word connection foundation 2, and the length of the prefabricated one - word connection foundation 2 can be set according to the actual size, inclination angle and distance of the photovoltaic panels.

[0043] As Figure 3 、 Figure 4 、 Figure 5 shown, a through - hole is formed in the middle of the central square block of the prefabricated cross - connection foundation 1 for passing through the steel pipe pile 3. A pile cap plate 4 is fixedly connected to the top of the steel pipe pile 3. A plurality of connection holes are evenly arranged on the pile cap plate 4. Outside the central through - hole of the prefabricated cross - connection foundation 1, a plurality of connection holes of the same size are also evenly arranged. The steel pipe pile 3 is passed through the through - hole of the prefabricated cross - connection foundation 1, then the connection holes on the pile cap plate 4 are aligned with the connection holes on the prefabricated cross - connection foundation 1, and then square - head bolts 5 are passed through to realize the connection between the pile cap plate 4 and the prefabricated cross - connection foundation 1, thus completing the connection between the steel pipe pile 3 and the prefabricated cross - connection foundation 1.

[0044] It should be noted that in this embodiment, with the plane where the positive connection groove or the anti - connection groove is located as the front, a notch is provided on the reverse side of the connection hole, and the square head of the square - head bolt 5 is arranged in the notch, which can prevent the square - head bolt 5 from loosening.

[0045] It can be understood that the steel pipe pile 3 is arranged perpendicular to the slope surface, playing an anti - slip role and being used to improve the overall anti - slip and anti - uplift capabilities of the prefabricated foundation. The size and burial depth of the steel pipe pile 3 are determined according to the actual construction scenario and specifications.

[0046] As Figure 1As shown in the figure, a photovoltaic frame track structure is provided on the precast foundation. The photovoltaic frame track structure includes a plurality of fixed tracks 6 longitudinally arranged on the top of the precast foundation. Specifically, the fixed track 6 includes a web, a bottom plate, and a top plate, and its cross-section is in the shape of a "work" character. Fixing holes for connecting with the precast foundation are provided on its bottom plate. It can be understood that fixing holes for connecting with the fixed track 6 are also provided on the precast one-word connection foundation 2. Connecting bolts pass through the fixing holes. Of course, square head bolts can also be used as the connecting bolts. A plurality of avoiding grooves are provided on the bottom surface of the bottom plate of the fixed track 6. The size of the avoiding grooves is larger than the size of the precast cross connection foundation 1, and the depth of the avoiding grooves needs to be greater than the height after the square head bolt 5 is connected. The function of the avoiding grooves is to ensure that the bottom plate of the fixed track 6 can be closely attached to the top surface of the precast foundation when the fixed track 6 is connected to the foundation.

[0047] As Figure 6 , Figure 7 shown, a plurality of upper sliding tracks 7 are slidably arranged on the top plate of the fixed track 6. Specifically, the upper sliding track 7 is a U-shaped groove plate, including a transverse plate and two vertical plates perpendicular to the transverse plate. A U-shaped groove is formed between the two vertical plates, and the U-shaped groove is used to accommodate the top plate of the fixed track 6. Two groups of sliding wheels 9 are arranged on the transverse plate of the upper sliding track 7, and each group includes two sliding wheels 9. Two sliding grooves are provided on the top surface of the fixed track 6, and the sliding wheels 9 slide in the sliding grooves. The sliding grooves can prevent the sliding wheels 9 from shifting. It can be understood that the distance between the two sliding wheels 9 in the same group is equal to the distance between the two sliding grooves. Through the cooperation of the sliding wheels 9 and the sliding grooves, the guiding movement of the upper sliding track 7 on the fixed track 6 is realized. Between the two groups of sliding wheels 9, a plurality of threaded holes are provided on the transverse plate of the upper sliding track 7 for connecting the support pedestal 10, and the support pedestal 10 is used to connect the support legs of the photovoltaic panel.

[0048] As Figure 6 , Figure 7 shown, locking grooves 8 are reserved on the vertical plates of the upper sliding track 7, and a number of locking grooves 8 are also provided on both sides of the top plate of the fixed track 6. The locking grooves 8 are used to install locking structures. By installing a locking structure between the upper sliding track 7 and the fixed track 6, the upper sliding track 7 can be locked on the fixed track 6. In this embodiment, a reinforced concrete block is used as the locking structure. After adjusting and confirming the position of the upper sliding track 7, the locking structure is inserted into the locking grooves of the upper sliding track 7 and the fixed track 6, thereby restricting the relative movement between the upper sliding track 7 and the fixed track 6.

[0049] In this embodiment, a number of reserved holes for the traction cables 13 are provided on the traction beam 12, and the positions of the reserved holes correspond to the fixed tracks 6, that is, each traction cable 13 corresponds to one fixed track 6; after each traction cable 13 passes through the traction beam 12, it is connected to the nearest upper sliding track 7 on the corresponding fixed track 6, and then all the upper sliding tracks 7 on the fixed track 6 are connected by the traction cables 13, and the upper sliding track 7 on the fixed track 6 close to the slope protection retaining wall 14 is also connected to the slope protection retaining wall 14 by the traction cable 13.

[0050] It can be understood that when connecting the upper sliding track 7, the traction cable 13 can be fixed by arranging pull rings on both sides of the cross plate of the upper sliding track 7 conforming to the fixed track 6 and passing the traction cable 13 through the pull rings; a number of reserved holes for the traction cables 13 corresponding in position are also provided on the slope protection retaining wall 14.

[0051] In some embodiments, a rope clip can be provided on the traction cable 13 on the side of the traction beam 12 away from the precast foundation, and the size of the rope clip is larger than the reserved hole to prevent the traction cable 13 from sliding in the direction of the upper sliding track 7 and strengthen the pulling force provided by the traction cable 13 to the upper sliding track 7; in other embodiments, the traction cable 13 can also be knotted so that the knot is larger than the diameter of the reserved hole to strengthen the pulling force provided by the traction cable 13 to the upper sliding track 7. In this embodiment, the traction cable 13 is a steel cable, and the steel cable has the characteristics of high strength and high toughness and can withstand large pulling forces.

[0052] A construction method for the adjustable photovoltaic support foundation of the precast track on the waste dump slope in this embodiment is specifically as follows:

[0053] Step 1: Set a cushion layer on the slope. If the soil conditions are met, the cushion layer can also not be laid, and it is only necessary to level and compact the site; carry out line marking according to the precast foundation construction drawing to position the steel pipe piles 3; construct the fixed piles 11 and the traction beam 12 on the top platform of the waste dump slope, construct the slope protection retaining wall 14 at the foot of the waste dump slope, and set reserved holes for the traction cables 13 on the traction beam 12 and the slope protection retaining wall 14.

[0054] Step 2: Transport the precast cross-connection foundation 1, the precast one-word connection foundation 2, the fixed track 6, and the upper sliding track 7 prefabricated in the factory to the construction site; construct the steel pipe piles 3 on the slope.

[0055] Step 3: First hoist the precast cross-connection foundation 1, make the steel pipe pile 3 pass through the central block of the precast cross-connection foundation 1, weld the pile cap plate 4 on the top of the steel pipe pile 3, and connect the pile cap plate 4 and the precast cross-connection foundation 1 with square head bolts 5; then hoist the precast one-word connection foundation 2 to connect the precast cross-connection foundation 1 and the precast one-word connection foundation 2, thus completing the construction of the precast foundation.

[0056] Step 4: Hoist and fix the fixed track 6, and fix the fixed track 6 on the precast foundation in the direction from the top of the slope to the bottom of the slope. Then, set up the upper sliding track 7 on the fixed track 6, and use a locking structure to lock the position of the upper sliding track 7 on the fixed track 6;

[0057] Step 5: Pass multiple traction cables 13 through the traction beam 12. Each traction cable 13 corresponds to a fixed track 6. Connect each traction cable 13 to the nearest upper sliding track 7 on the corresponding fixed track. Then, connect all the upper sliding tracks on the fixed track through the traction cables 13. The upper sliding track near the slope protection retaining wall 14 on the fixed track is also connected to the slope protection retaining wall 14 through the traction cable 13;

[0058] Step 6: Connect the end of the traction cable 13 far from the slope protection retaining wall to the motor fixed on the slope top platform;

[0059] Step 7: Install the support pedestal 10 for the photovoltaic panel on the upper sliding track 7.

[0060] Embodiment 2

[0061] This embodiment provides a usage method for the precast track adjustable photovoltaic support foundation described in Embodiment 1, which specifically includes:

[0062] After large - scale and relatively uniform settlement occurs in some areas, the traction cable 13 can provide basic tension between the upper sliding tracks 7 to ensure the stability of the photovoltaic panels and prevent damage to the photovoltaic panels. After ensuring the stability and safety of the slope in the settlement area, the staff loosens the square - head bolts between the precast foundation and the fixed track 6, between the precast foundations, and between the precast foundation and the steel pipe piles, removes the precast foundation at the settlement joint and the corresponding upper column support structure, divides the overall truss foundation into multiple local truss foundations, and then recalculates each part separately to ensure that the anti - sliding and anti - overturning capabilities of each part meet the requirements. In the case where the existing components are not sufficient to provide enough resistance, additional steel pipe piles can be considered to be added on both sides of the corresponding steel pipe piles to hold the steel pipe piles under the precast foundation, or a retaining wall structure can be added at the bottom of the slope.

[0063] When a local small landslide occurs on the waste dump slope induced by rainfall, the traction cable 13 can provide basic tension between the upper sliding tracks 7 to ensure the stability of the photovoltaic panels and prevent damage to the photovoltaic panels. After ensuring the stability and safety of the slope, the staff removes the locking components between the upper sliding track 7 and the fixed track 6 to separate the upper sliding track 7 from the fixed track 6, and then further tightens the upper sliding track 7 and the traction cable 13 connected to the traction beam 12 through the motor to adjust the upper sliding track 7 to ensure that the photovoltaic panel is at the initial working height.

[0064] Although the specific implementation manners of the present invention have been described above in conjunction with the accompanying drawings, they are not limitations on the protection scope of the present invention. Those skilled in the art should understand that various modifications or deformations that can be made without creative efforts on the basis of the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A prefabricated track adjustable photovoltaic support foundation for the slope of a spoil dump, characterized in that: It includes a prefabricated foundation set on the slope of the spoil dump, on which a photovoltaic rack track structure is set; a plurality of fixed piles are set on the top platform of the slope, which are fixedly connected to the traction beam, and a slope retaining wall is set at the foot of the slope; The photovoltaic rack track structure includes a plurality of fixed tracks longitudinally arranged on the top of the prefabricated foundation; The fixed track includes a web, a bottom plate and a top plate which are fixedly connected. The bottom plate is provided with a plurality of fixing holes for connecting with a prefabricated foundation. A plurality of upper sliding tracks are slidably arranged on the top plate, and the upper sliding tracks are U-shaped groove plates. A traction rope is arranged between the traction beam, the upper sliding tracks and the slope retaining wall.

2. The prefabricated track adjustable photovoltaic support foundation for the spoil dump slope as claimed in claim 1, characterized in that: The prefabricated foundation includes prefabricated cross connection foundations arranged in a rectangular array, and the prefabricated cross connection foundations are connected by prefabricated straight connection foundations; the prefabricated cross connection foundation includes a central square, and the four sides of the central square are fixedly connected to a positive connection slot block, and a positive connection slot is opened on the positive connection slot block.

3. The prefabricated track adjustable photovoltaic support foundation for the spoil dump slope as claimed in claim 2, characterized in that: The prefabricated straight connection foundation includes a long strip block with multiple fixing holes arranged on the long strip block; anti-connection slot blocks are fixedly connected on both sides of the long strip block, and anti-connection slots are opened on the anti-connection slot blocks; multiple connection holes are arranged in the positive connection slot and the anti-connection slot, and square head bolts pass through the connection holes.

4. The prefabricated track adjustable photovoltaic support foundation for the spoil dump slope as claimed in claim 2, characterized in that: A through hole is provided in the middle of the central block, and a steel pipe pile is arranged in the through hole, and the steel pipe pile is arranged vertically on the slope; the top of the steel pipe pile is fixedly connected to a pile cap plate, and a plurality of connection holes are arranged on the pile cap plate and the central block.

5. The prefabricated track adjustable photovoltaic support foundation for the spoil dump slope as claimed in claim 2, characterized in that: The surface where the positive connection groove or the reverse connection groove is located is taken as the front surface, and a groove is arranged on the reverse surface of the connection hole, and the square head of the square head bolt is arranged in the groove.

6. The prefabricated track adjustable photovoltaic support foundation for the spoil dump slope as claimed in claim 3, characterized in that: A plurality of avoidance grooves are arranged on the bottom surface of the base plate, the size of the avoidance grooves is larger than the size of the prefabricated cross connection foundation, and the depth of the avoidance grooves needs to be larger than the height of the square head bolts after the connection is completed to ensure that the base plate can be tightly attached to the top surface of the prefabricated foundation.

7. The prefabricated track adjustable photovoltaic support foundation for the spoil dump slope as claimed in claim 1, characterized in that: The upper sliding track includes a horizontal plate and two vertical plates. Two groups of sliding wheels are arranged on the horizontal plate, and each group includes two sliding wheels. Two sliding grooves are arranged on the top surface of the fixed track. The distance between the two sliding wheels in the same group is equal to the distance between the two sliding grooves, and the sliding wheels slide in the sliding grooves.

8. The prefabricated track adjustable photovoltaic support foundation for the spoil dump slope as claimed in claim 7, characterized in that: The horizontal plate is provided with a plurality of threaded holes for connecting the bracket pedestal, and the bracket pedestal is used to connect the bracket legs of the photovoltaic panel; locking grooves are reserved on the vertical plate, and a plurality of locking grooves are also provided on both sides of the fixed track top plate, and the locking grooves are used to install the locking structure.

9. The prefabricated track adjustable photovoltaic support foundation for the spoil dump slope as claimed in claim 1, characterized in that: The traction beam and the slope retaining wall are provided with a plurality of reserved holes for traction ropes, and the positions of the reserved holes correspond to the fixed tracks; the traction rope is located at one end of the traction beam away from the slope retaining wall, and is connected to the output end of the motor fixed on the slope top platform.

10. The method for using the prefabricated track adjustable photovoltaic support foundation on the slope of a spoil dump as claimed in any one of claims 1 to 9, characterized in that: Specifically include: When a large-scale and relatively uniform settlement occurs in some areas, the traction rope provides basic pulling force between the upper sliding tracks to ensure stability. After ensuring that the slope of the settlement area is stable and safe, loosen the square head bolts between the prefabricated foundation and the fixed track, between the prefabricated foundations, and between the prefabricated foundations and the steel pipe piles, remove the prefabricated foundations and the upper structure at the settlement intersection, divide the overall truss foundation into multiple local truss foundations, and then recalculate each part separately to ensure that the anti-slip and anti-overturning capabilities of each part meet the requirements; when the existing components are not enough to provide sufficient resistance, add steel pipe piles on both sides of the corresponding steel pipe piles to drag the steel pipe piles under the prefabricated foundation, or add a retaining wall structure at the bottom of the slope; When rainfall induces a small local landslide on the slope of the spoil dump, the traction rope can provide basic pulling force between the upper sliding tracks to ensure stability. After the slope is stable and safe, the locking component between the upper sliding track and the fixed track is removed to separate the upper sliding track from the fixed track. The upper sliding track and the traction rope connected to the traction beam are further tightened by the motor, and the upper sliding track is adjusted to ensure that the photovoltaic panel is at the initial working height.

Images