Support structure for solar cell module and sloped surface protection structure with solar cell module

Abstract

To easily install a solar cell module on a slope with a simple configuration while ensuring a stability of a slope such as a natural slope or a slope face.SOLUTION: In a support structure for a solar cell module in which a solar cell module is supported by a plurality of support bodies arranged in a plane with a space therebetween, the plurality of support bodies comprises a reinforcing member and a plate. The reinforcing member has one end protruding from a slope and the other end inserted from the slope to a predetermined depth deeper than a slip surface, and is fixed to a natural ground across the slip surface. The plate is fixed to the one end side of the reinforcing member protruding from the natural ground in a contact state with the slope. The solar cell module is installed so as to connect the plurality of adjacent plates.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a support structure for a solar cell module arranged to cover slopes such as natural slopes and embankment slopes, and a slope protection structure with a solar cell module using the support structure for a solar cell module.

Background Art

[0002] In the midst of the attention paid to renewable energy, the cases where solar cell arrays are constructed on slopes such as inclined lands and embankment slopes and function as solar power generation systems are increasing. A solar cell array consists of a solar cell module and a solar cell pedestal that supports the same, and the solar cell pedestal has a foundation installed in the ground.

[0003] For example, in Patent Document 1, block-shaped reinforced concrete is adopted for the foundation, and the lower part is buried in the ground and the upper part is installed so as to protrude from the ground surface. Since such a foundation is often installed without considering the stability of the slope, the slope is likely to become unstable due to the installation of the foundation, and there are many cases where the slope collapses together with the solar cell array during rainfall.

[0004] Under such circumstances, for example, Patent Document 2 discloses a method of using a ground anchor for a support structure of a solar cell module installed on a slope. Specifically, a ground anchor is inserted into the ground, one end is fixed to a stable ground, the other end is made to protrude above the ground, and a pressure receiving plate is arranged on the slope so as to penetrate the other end. After introducing a tension force into the anchor material in this state, a nut is screwed onto the anchor material and the pressure receiving plate is installed on the slope, thereby providing a support structure on the slope. A frame-shaped connecting member is provided on the pressure receiving plate of the support structure thus constructed, and a solar cell module is attached to this connecting member.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

[0006] According to Patent Document 2, a solar cell module can be firmly installed on an inclined surface using a ground anchor. However, when the solar cell module is supported by a pressure plate, the tensile force introduced into the anchor material decreases due to its weight. Therefore, the design of the ground anchor tends to be complicated, such as having to anticipate the support load of the solar cell module for the ground anchor to be adopted.

[0007] Furthermore, since the ground anchor with the introduced tensile force requires timely inspection, a working space for inspection is provided in the height direction between the inclined surface and the solar cell module. Providing a working space in the height direction creates an environment where weeds are likely to grow on the inclined surface, and maintenance work such as weeding is required. Also, since the inclined surface is likely to be affected by rainwater, slope countermeasures such as installing a separate slope protection work are necessary to prevent surface collapse and slope erosion caused by infiltrating water accompanying rainfall.

[0008] In addition, the wind that enters from the working space easily acts upward from the back side of the solar cell module, which may cause damage or scattering of the solar cell module. For this reason, Patent Document 2 discloses a method of making it possible to inspect the ground anchor while omitting the working space between the inclined surface by detachably installing the solar cell module on the connection member provided on the pressure plate. However, each time the inspection work of the ground anchor is carried out, the work of removing and lifting the solar cell module on the inclined surface and reinstalling it after inspection tends to be complicated.

[0009] The present invention has been made in view of such problems, and its main object is to easily install a solar cell module on a slope with a simple configuration while ensuring the stability of the slope such as a natural slope or a quay face.

Means for Solving the Problems

[0010] The support structure of the solar cell module of the present invention for achieving such an object is a support structure of a solar cell module that supports the solar cell module with a plurality of supports arranged in a planar manner with a separation interval, wherein the plurality of supports include a reinforcing member and a plate, one end of the reinforcing member protrudes from the slope, the other end is inserted to a predetermined depth deeper than the sliding surface from the slope, and is fixed to the ground across the sliding surface, and the plate is fixed to the one end side of the reinforcing member protruding from the ground while being in contact with the slope, and the solar cell module is installed so as to connect a plurality of adjacent plates.

[0011] According to the support structure of the solar cell module of the present invention, the support includes a reinforcing member and a plate. The reinforcing member suppresses the occurrence of deformation and sliding of the ground, and the plate restrains the surface layer portion of the slope. In this way, the support serves both the function of stabilizing the slope and the function as a foundation for the solar cell module. Thereby, for any slope, an appropriate support can be designed according to the state of the slope where the installation of the solar cell module is planned, so that the solar cell module can be stably installed without taking separate measures for the quay face countermeasure. In addition, since a gantry can be omitted for the installation of the solar cell module, the influence of the seismic force acting during an earthquake can be minimized, and problems such as the collapse or damage of the solar cell module can be avoided.

[0012] The support structure of the solar cell module of the present invention includes a frame member that connects adjacent plates while being in contact with the slope, and the solar cell module is installed on the frame member.

[0013] According to the support structure of the solar cell module of the present invention, since the frame member grounds on the slope in a manner of connecting adjacent plates, they function like a legal frame on the slope. And by installing the solar cell module on this frame member, its load is transmitted to the surface layer portion through the frame member. As a result, the surface layer portion of the slope can be efficiently constrained, and it becomes possible to suppress erosion and surface collapse (surface sliding) that are likely to occur in the surface layer portion.

[0014] Further, the support structure of the solar cell module of the present invention includes a face plate that connects adjacent plates while grounding on the slope, and is characterized in that the solar cell module is installed on the face plate.

[0015] According to the support structure of the solar cell module of the present invention, since the face plate grounds on the slope in a manner of connecting adjacent plates, they function like a retaining wall for protecting the slope on the slope. Therefore, it becomes possible to install the solar cell module while also stabilizing steep slopes or embankment slopes where there is a possibility of surface layer collapse or rockfall.

[0016] The support structure of the solar cell module of the present invention is characterized in that the solar cell module, the frame member or the face plate is installed on three adjacent plates.

[0017] According to the support structure of the solar cell module of the present invention, since it is in a state of being supported at three points, even when the slope is not smooth and there are unevenness in adjacent supports, the solar cell module, the frame member or the face plate can be installed along the slope so as to cover it. As a result, it is difficult for wind to enter the gap between the slope and the solar cell module, and the wind pressure acting in the pulling direction of the solar cell module caused by typhoons or gusts during bad weather can be reduced.

[0018] The slope protection structure with a solar cell module of the present invention is characterized by comprising the support structure of the solar cell module of the present invention and a solar cell module installed so as to connect a plurality of adjacent plates.

[0019] According to the sloped surface protection structure with a solar cell module of the present invention, since the solar cell module is installed on a plurality of adjacent plates, the load of the solar cell module is dispersed and acts on a wide range of the surface layer portion of the slope through the plurality of plates. Therefore, while installing the solar cell module, it is possible to stabilize the slope.

[0020] The sloped surface protection structure with a solar cell module of the present invention is characterized in that a water stop layer or a drainage layer is provided in at least the area covered by the solar cell module on the slope.

[0021] The sloped surface protection structure with a solar cell module of the present invention is characterized in that a drainage layer and a water stop layer covering the drainage layer are provided in at least the area covered by the solar cell module on the slope.

[0022] According to the sloped surface protection structure with a solar cell module of the present invention, infiltrated water such as rainwater infiltrated into the natural ground can be quickly drained through the drainage layer. In addition, the water stop layer can suppress the phenomenon that the infiltrated water of the natural ground gushes out to the solar cell module side, and can also suppress the erosion and weathering of the slope due to rainfall. In this way, since the surface layer portion of the slope can be always protected, along with suppressing the destabilization of the surface layer portion, the slope soil and sand will not flow out during bad weather and cause damage to the solar cell module.

[0023] Furthermore, the water stop layer also has a function of eliminating factors that promote the growth of weeds, such as blocking sunlight. Thereby, since operations such as weeding can be omitted, it is possible to simplify the maintenance work of the solar cell module.

Advantages of the Invention

[0024] According to the present invention, the support for supporting the solar cell module is composed of a reinforcing material for reinforcing the natural ground and a plate for restraining the surface layer portion of the slope, and the solar panel is installed on this plate. Therefore, while ensuring the stability of slopes such as natural inclined lands and embankment surfaces, it is possible to easily install the solar cell module on the slope with a simple configuration.

Brief Description of the Drawings

[0025]

Figure 1

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Figure 10

Embodiments for Carrying Out the Invention

[0026] This invention reinforces the natural ground by a rock bolt method in which a plurality of reinforcing materials are inserted into a slope such as a natural slope or a slope and fixed to the ground, and uses the plurality of reinforcing materials fixed to the ground as a support body, and installs a solar cell module so as to cover the slope.

[0027] The following details the support structure of the solar cell module and the slope protection structure with a solar cell module. Taking the case where the solar cell module is provided on the slope surface as an example, it will be described with reference to FIGS. 1 to 10. Note that the slope surface may be any artificial slope surface such as a cut slope surface or a fill slope surface. Also, the support structure of the solar cell module and the slope protection structure with a solar cell module can be adopted not only on the slope surface but also on any slope including natural slopes.

[0028] ≪≪Slope protection structure with a solar cell module≫≫ As shown in the front view of FIG. 1(a), the slope protection structure 100 with a solar cell module provided on the slope surface 201 includes the solar cell module 10 as shown in FIG. 1(b), the support structure of the solar cell module 10 as shown in FIG. 1(c), and the drainage layer 30 and the water stop layer 40 as shown in FIG. 2. And the support structure of the solar cell module 10 is composed of a plurality of supports 20 arranged in a planar manner with a separation interval.

[0029] ≪≪Solar cell module≫≫ As shown in FIG. 1(b), the solar cell module 10 is a power generation unit in which a plurality of solar cells 11 are encapsulated in an outer enclosure 12, and the outer enclosure 12 is formed into a substantially right triangle obtained by bisecting a square in a plan view. Thereby, the solar cell module 10 has a substantially right triangular outer shape, and as shown in FIG. 1(a), it is supported at three points by adjacent supports 20 and is installed so as to cover the slope surface 201.

[0030] ≪≪Support≫≫ As shown in FIGS. 1(a) and 1(c), a plurality of supports 20 are installed at intervals in the vertical and horizontal directions of the slope surface 201. The arrangement position and the separation interval may be appropriately determined according to the state of the natural ground 200. For example, a staggered arrangement or the like may be used, and the separation interval does not have to be constant.

[0031] As shown in Figs. 2(a) and 3(a), these supports 20 are installed integrally with the natural ground 200, and include a reinforcing member 21 that enhances the stability of the entire plastering surface 201, and a pressure-receiving plate 22 that is fixed to one end side of the reinforcing member 21 and restrains the surface layer portion of the plastering surface 201. Further, together with these pressure-receiving plates 22 and reinforcing members 21, a bearing plate 23, a fixture 24, and a holding member 25 are provided.

[0032] The reinforcing member 21 is made of a long steel bar. As shown in Fig. 2(a), with one end protruding from the plastering surface 201, it is inserted into a ground hole H drilled to a predetermined depth deeper than the sliding surface 202 of the soil mass. The ground hole H is filled with grout G, and the reinforcing member 21 is fixed to the natural ground 200 through this grout G. That is, the entire length of the reinforcing member 21 except for the end protruding from the plastering surface 201 is in a state of being fixed to the natural ground 200. In addition, as long as the other end of the reinforcing member 21 is inserted to a predetermined depth deeper than the sliding surface 202 from the slope and is fixed to the natural ground 200 across at least the sliding surface 202, the vicinity of the plastering surface 201 may not be fixed to the natural ground 200.

[0033] The pressure-receiving plate 22 is a disk-shaped member through which the reinforcing member 21 fixed to the natural ground 200 passes. While grounding on the plastering surface 201 through a drainage layer 30 and a water-stop layer 40 described later, it is fixed to one end of the reinforcing member 21. Any means of fixing may be adopted, but in this embodiment, a bearing plate 23 and a fixture 24 are adopted.

[0034] The bearing plate 23 is disposed on the upper surface of the pressure-receiving plate 22 with the reinforcing member 21 passing through. The fixture 24 includes a nut that can be screwed onto a threaded portion formed near one end side of the reinforcing member 21. Therefore, first, the pressure-receiving plate 22 through which the reinforcing member 21 is inserted is grounded on the plastering surface 201 through the drainage layer 30 and the water-stop layer 40, and the bearing plate 23 through which the reinforcing member 21 is also inserted is disposed on its upper surface.

[0035] In this state, the fixture 24 is attached to one end side of the reinforcing member 21 and screwed. As a result, the pressure receiving plate 22 is fastened and fixed to the reinforcing member 21 while being sandwiched between the fixture 24 and the bearing plate 23 and the bedding surface 201. A holding member 25 used when holding the solar cell module 10 is installed on such a pressure receiving plate 22.

[0036] As shown in FIGS. 3(a) and 4, a plurality of holding members 25 are installed on the upper surface of the pressure receiving plate 22, and include a mounting member 251 connected to the solar cell module 10 and a connecting portion 252 fixed to the pressure receiving plate 22 and connected to the mounting member 251. These form a so-called ball joint, and the solar cell module 10 connected to the mounting member 251 is connected to the pressure receiving plate 22 in a manner capable of freely changing its posture.

[0037] ≪≪Support Structure of Solar Cell Module≫≫ By constructing a plurality of these supports 20 so as to form a surface with a separation interval in the construction target area, a support structure for the solar cell module 10 is formed. Then, as shown in FIG. 4, for example, one solar cell module 10 is arranged and connected to the holding member 25 so as to connect the pressure receiving plates 22 of each of three adjacent supports 20. In this way, one solar cell module 10 is supported by three supports 20 in a manner covering the bedding surface 201.

[0038] At this time, as shown in FIG. 4, since a plurality of holding members 25 are provided in the radial direction on the pressure receiving plate 22, a plurality of solar cell modules 10 are connected to one pressure receiving plate 22 via the holding members 25. In this way, as shown in FIG. 1(a), a sloped surface protection structure 100 with a plurality of solar cell modules installed is formed so as to cover the entire construction target area without gaps in the bedding surface 201.

[0039] In addition, the reinforcing member 21 provided on the support 20 can suppress the deformation and slip of the natural ground 200. Furthermore, as shown in FIGS. 2(a) and 2(b), the pressure-receiving plate 22 grounded on the laying surface 201 via the drainage layer 30 and the water-stopping layer 40 not only restrains the surface layer portion of the laying surface 201, but also can disperse and act the load of the solar cell module 10 over a wide range of the surface layer portion via a plurality of pressure-receiving plates 22. Therefore, when the support 20 is adopted, it is possible to enhance the stability of the entire laying surface 201 while installing the solar cell module 10 on the laying surface 201.

[0040] Moreover, when installing the solar cell module 10, since a generally used solar cell stand can be omitted, the solar cell module 10 and the laying surface 201 can be arranged close to each other. Therefore, as shown in FIG. 3(b), when strong winds or gusts occur due to bad weather or the like, it is possible to suppress the phenomenon that these winds hardly enter the gap between the solar cell module 10 and the laying surface 201 and the wind pressure in the pulling direction acts on the back side of the solar cell module 10.

[0041] Furthermore, as shown in FIG. 3(b), during an earthquake, loads in the pulling direction and the pushing direction act on the support 20 alternately. However, since the load of the solar cell module 10 is adopted by the pressure-receiving plate 22 via the holding member 25, it is possible to resist the force in the pulling direction and stably support the solar cell module 10 together with the reinforcing member 21 fixed to the natural ground 200. When the laying surface 201 is a steep slope, the load of the solar cell module 10 acts on the pressure-receiving plate 22 in the pulling direction.

[0042] However, in this case, the reinforcing member 21 may be designed in consideration of the load of the solar cell module 10 that may act in the pulling direction in advance. The material of the reinforcing member 21 may be a rod-shaped member that can be adopted in the rock bolt method for integrating with the natural ground 200, and steel bars such as rock bolts, deformed bar meshes, and screw-threaded bar meshes may be adopted, or any of them, such as a GFRP rock bolt, may be adopted.

[0043] The material of the pressure-receiving plate 22 may also be made of any material such as concrete, steel, or synthetic material. Further, the planar shape thereof is not limited to a disc shape, and cross-shaped, semi-cross, square-shaped, etc., which are generally used in edge surface protection work, can be adopted. Furthermore, the fixture 24 is not necessarily limited to a capped nut as shown in Fig. 3(a), as long as it includes a nut that can be screwed onto a threaded portion formed near one end of the reinforcing member 21.

[0044] Also, the arrangement position of the support 20 may not necessarily be aligned in the vertical and horizontal directions as shown in Fig. 1(c). In such a case, for example, it is advisable to prepare in advance solar cell modules 10 having various planar shapes such as isosceles triangles and equilateral triangles. Thus, it is also possible to appropriately combine various solar cell modules 10 with different planar shapes according to the arrangement position of the support 20.

[0045] On the other hand, for example, if the natural ground 200 is a fill, the surface of the edge surface 201 is smooth, and unevenness of the support 20 hardly occurs. In this case, the solar cell module 10 does not necessarily have to be supported at three points by three supports 20. Therefore, the planar shape of the solar cell module 10 is not necessarily limited to a triangle, and it may be formed into a polygonal shape that can cover the edge surface 201 of the area surrounded by adjacent supports 20, such as a quadrilateral or a pentagon, according to the arrangement situation of the supports 20 constructed on the edge surface 201.

[0046] For example, Fig. 5 shows a case where a square solar cell module 10 is adopted. In this case, the solar cell module 10 has its corners connected to the pressure-receiving plate 22 via the holding member 25 and is installed so as to connect four adjacent pressure-receiving plates 22. That is, the solar cell module 10 is supported at four points by four adjacent supports 20, and the load can be dispersed and applied to a wide range of the surface layer portion via the four pressure-receiving plates 22.

[0047] ≪≪Other examples of the support structure of the solar cell module≫≫ <<Example of Adding Frame Members>> In the support structure of the solar cell module 10 composed of a plurality of supports 20 arranged to form a surface with the above-described separation interval, when the stability of the sloping surface 201 is low and there is a risk of falling rocks or collapse in the surface layer, as shown in Figs. 6(a) and 6(b), a frame member 61 may be further adopted to provide a support frame 60 for the support structure of the solar cell module 10.

[0048] As shown in Fig. 6(a), the support frame 60 includes a plurality of frame members 61 having a triangular shape in plan view, and these are connected via the pressure receiving plate 22 of the support 20, thereby functioning like a retaining wall on the sloping surface 201. That is, the support structure of the solar cell module 10 has a structure including a slope protection work that combines a rockbolt work and an open-frame work, and more stably protects the sloping surface 201. When the solar cell module 10 is installed on the frame member 61 constituting such a support structure of the solar cell module 10 as shown in Fig. 6(b), its load is transmitted to the surface layer portion of the sloping surface 201 via the support frame 60. Therefore, even when the surface layer portion of the sloping surface 201 is unstable, these can be efficiently restrained, and erosion and surface layer collapse (surface layer slip) that may occur in the surface layer portion can be suppressed.

[0049] The frame member 61 that functions as described above is manufactured by assembling rod-shaped members into a triangle and fixing them by welding or the like as shown in Fig. 7(a), and is formed by butting two angle steels as shown in Fig. 7(b). Therefore, its cross-section has an inverted T-shape including a rising portion 62 and a bottom portion 63. The bottom portion 63 of this inverted T-shape is arranged to be grounded to the sloping surface 201 via the drainage layer 30 and the water stop layer 40 as shown in Fig. 8.

[0050] In this state, the frame member 61 is arranged to connect three adjacent pressure receiving plates 22 and is connected to the holding member 25. As a result, one frame member 61 is supported by three supports 20. At this time, since a plurality of holding members 25 are provided in the radial direction on the pressure receiving plate 22, a plurality of frame members 61 are connected to one pressure receiving plate 22 via the holding members 25. Thereby, as shown in FIG. 6(a), a support structure of the solar cell module 10 including the plurality of frame members 61 and the pressure receiving plates 22 can be provided over the entire construction target area.

[0051] Further, as shown in FIG. 6(b), by fitting and installing the solar cell module 10 in the inner space surrounded by the rising portion 62 of the frame member 61, a slope protection structure 100 with a solar cell module is formed. Thereby, it becomes possible to fix small-scale collapses that may occur on the slope surface 201 and unstable soil masses such as falling rocks.

[0052] Note that the frame member 61 is not necessarily limited to being formed by laminating two angle steels back to back. As long as it has at least a bottom portion 63 and has a configuration in which the solar cell module 10 can be arranged like the rising portion 62, for example, a precast member made of reinforced concrete may be adopted. Further, the planar shape of the frame member 61 can be appropriately various shapes such as a right triangle or an equilateral triangle according to the construction position and the separation distance of the support 20, similar to the planar shape of the solar cell module 10. It is also possible to form the support frame 60 by appropriately combining frame members 61 of different shapes.

[0053] <<Example of adding a facing material>> When sufficient stability cannot be ensured by the restraint using the frame member 61 for the surface layer portion of the slope surface 201, or when the rolling compaction of the constructed embankment is not sufficient, as shown in FIGS. 9(a) and 9(b), a facing material 71 may be adopted instead of the frame member 61, and a support wall 70 may be provided in the support structure of the solar cell module 10.

[0054] As shown in Fig. 9(a), the support wall 70 includes a plurality of facing members 71, and these are connected via the pressure receiving plate 22 of the support 20, thereby functioning like a facing protection retaining wall on the bedding surface 201. Therefore, the support structure of the solar cell module 10 can stabilize the bedding surface 201 even on a slope with an unstable surface layer such as a natural slope where there is a possibility of collapse or falling rocks, or a bedding surface 201 of a fill where compaction may not be sufficient.

[0055] The facing member 71 that functions as described above is composed of the plurality of frame members 61 described above and a facing body 72 provided so as to close the inner space thereof, as shown in Fig. 10(a). Then, both the frame member 61 and the facing body 72 are grounded to the bedding surface 201 via the drainage layer 30 and the water stop layer 40. In this state, by installing the solar cell module 10 on the facing body 72, as shown in Fig. 9(b), a slope protection structure 100 with a solar cell module is formed.

[0056] However, the facing member 71 is not limited to this. For example, as shown in Fig. 10(b), a single flat plate material may be adopted as the facing member 71 and fixed integrally with the pressure receiving plate 22 constituting the support 20 to form the support wall 70. That is, as long as the facing member 71 has a surface on the lower surface that can be grounded to the bedding surface 201 via the drainage layer 30 and the water stop layer 40, the solar cell module 10 can be arranged on the upper surface, and the planar shape is formed so as to close the space surrounded by a plurality of adjacent pressure receiving plates 22, any of them can be adopted.

[0057] As described above, in the slope protection structure 100 with a solar cell module, the support 20 includes a reinforcing member 21 and a pressure receiving plate 22. The reinforcing member 21 suppresses the deformation and sliding of the natural ground 200, and the pressure receiving plate 22 restrains the surface layer portion of the bedding surface 201. In this way, the support 20 serves both the function of stabilizing the bedding surface 201 and the function as a base for the solar cell module 10.

[0058] Therefore, not only the slope surface 201 such as cut soil and fill soil, but also any slope surface such as a natural slope can be designed with an appropriate support body 20 according to the state of the slope surface in the construction target area. Thus, it is possible to easily install the solar cell module 10 on the slope surface with a simple structure while ensuring the stability of the slope surface without taking measures for the slope surface by other means.

[0059] The slope protection structure 100 with a solar cell module formed by supporting the solar cell module 10 with the above support structure is provided with a drainage layer 30 and a water stop layer 40 at least on the slope surface 201 located on the lower side of the solar cell module 10.

[0060] ≪≪Drainage layer and water stop layer≫≫ As shown in Fig. 2(a), the drainage layer 30 is laid on the upper surface of the slope surface 201 to actively collect the infiltrated water 203 of the natural ground 200 and drain it to the side drainage ditch 50. The material thereof may be any material that has drainage properties such as crushed chestnuts, drainage mats, and baskets and can cover the slope surface 201. Also, a plurality of different types of drainage materials may be combined to form the drainage layer 30.

[0061] In addition, when the surface layer portion of the slope surface 201 is composed of a soil material having a drainage function such as a gravel layer 204 as shown in Fig. 2(b) and the infiltrated water 203 of the natural ground 200 can be conducted to the side drainage ditch 50 through this gravel layer 204, the drainage layer 30 may be omitted.

[0062] The water stop layer 40 is laid so as to cover the drainage layer 30 in Fig. 2(a) and the upper surface of the gravel layer 204 in Fig. 2(b) to prevent the infiltrated water 203 flowing down these from gushing out toward the solar cell module 10 side. Also, during rainfall, it suppresses the behavior of rainwater flowing from the gap between adjacent solar cell modules 10 into the natural ground 200 from the slope surface 201. The material thereof may be any material that has water stop properties such as a bentonite-based water barrier sheet or a high-density polyethylene sheet and can cover the drainage layer 30 and the gravel layer 204.

[0063] For example, as shown in FIG. 10(b), when the adjacent pressure-receiving plates 22 and the facing material 71 are integrally formed and the entire surface of the drainage layer 30 is covered, the water-stop layer 40 may be omitted.

[0064] Thus, when the drainage layer 30 and the water-stop layer 40 are provided on at least the lower side of the bedding surface 201 of the solar cell module 10, the infiltrated water 203 such as rainwater infiltrated into the natural ground 200 can be quickly drained through the drainage layer 30. And the water-stop layer 40 can suppress the phenomenon that the infiltrated water 203 of the natural ground 200 gushes out to the solar cell module 10 side, and can also suppress the erosion and weathering of the bedding surface 201 due to rainfall.

[0065] In this way, since the surface layer portion of the bedding surface 201 can be constantly protected, along with suppressing the destabilization of the surface layer portion, it is also possible to prevent damage to the solar cell module 10 due to, for example, the outflow of earth and sand on the bedding surface 201 during bad weather. Furthermore, the water-stop layer 40 also has a function of eliminating factors that promote the growth of weeds such as blocking sunlight. Thereby, the weeding work on the bedding surface 201 located on the lower surface side of the solar cell module 10 can be omitted, and it becomes possible to simplify the maintenance and management of the solar cell module 10.

[0066] The support structure of the solar cell module and the slope protection structure with a solar cell module of the present invention are not limited to the above-described embodiments, and various modifications are possible without departing from the spirit of the present invention.

[0067] For example, in the present embodiment, an example is given in which a reinforcing material 21 is newly prepared and fixed to the natural ground 200, and then the support 20 is constructed, and the slope protection structure 100 with a solar cell module is provided using this support 20. However, it is not limited thereto. For example, an existing rock bolt fixed to the natural ground 200 reinforced by rock bolt work may be used as the reinforcing material 21 to construct the support 20.

[0068] Further, a support 20 constructed using existing rock bolts and a newly installed support 20 using a new reinforcing material 21 may be provided side by side on the slope, and the solar cell module 10 may be supported using these.

[0069] Furthermore, in the present embodiment, the attachment member 251 of the holding member 25 is connected to the corner of the solar cell module 10. However, as long as the solar cell module 10 can be held and its load can be applied to the pressure receiving plate 22, the attachment position is not limited to the corner of the solar cell module 10.

[0070] Also, in the present embodiment, the pressure receiving plate 22 is cited as an example of the plate fixed to one end side of the reinforcing material 21 protruding from the natural ground 200, and the configuration in which the holding member 25 is provided on the pressure receiving plate 22 is illustrated. However, it is not necessarily limited to this. For example, when the bearing plate 23 has an area sufficient to install the holding member 25, the bearing plate 23 may be treated as a plate instead of the pressure receiving plate 22, and the holding member 25 may be provided on the bearing plate 23. In this case, the pressure receiving plate 22 does not have to be provided on one end side of the reinforcing material 21.

Explanation of Reference Numerals

[0071] 100 Slope protection structure with solar cell module 10 Solar cell module 11 Solar cell 12 Outer enclosure 20 Support 21 Reinforcing material 22 Pressure receiving plate 23 Bearing plate 24 Fixture 25 Holding member 251 Attachment member 252 Connecting portion 30 Drainage layer 40 Waterproof layer 50 Shoulder drainage groove 60 Support frame 61 Frame member 62 Upright portion 63 Bottom 70 Support wall 71 facing material 72 facing material body 200 ground mountain 201 paste surface (inclined surface) 202 sliding surface 203 permeated water 204 gravel layer G grout H underground hole

Claims

1. A support structure for a solar cell module that supports the solar cell module with a plurality of supports arranged in a planar manner with a separation interval, wherein the plurality of supports include a reinforcing member and a plate, one end of the reinforcing member protrudes from the inclined surface, the other end is inserted to a predetermined depth deeper than the sliding surface from the inclined surface, and is fixed to the ground across the sliding surface, the plate is fixed to the one end side of the reinforcing member protruding from the ground while being in contact with the inclined surface, the solar cell module is installed so as to connect a plurality of adjacent plates, and is a support structure for a solar cell module.

2. In the support structure for a solar cell module according to Claim 1, it includes a frame member that connects the adjacent plates while being in contact with the inclined surface, and the solar cell module is installed on the frame member, and is a support structure for a solar cell module.

3. In the support structure for a solar cell module according to Claim 1, it includes a panel board that connects the adjacent plates while being in contact with the inclined surface, and the solar cell module is installed on the panel board, and is a support structure for a solar cell module.

4. In the support structure for a solar cell module according to any one of Claims 1 to 3, the solar cell module, the frame member or the panel board is installed on three adjacent plates, and is a support structure for a solar cell module.

5. A slope protection structure with a solar cell module installed on an inclined surface, including the support structure for a solar cell module according to any one of Claims 1 to 4, and a solar cell module installed so as to connect a plurality of adjacent plates, and is a slope protection structure with a solar cell module.

6. In the slope protection structure with a solar cell module according to Claim 5, in at least a region covered by the solar cell module on the inclined surface, a water stop layer or a drainage layer is provided, and is a slope protection structure with a solar cell module.

7. In the slope protection structure with a solar cell module according to Claim 5, in at least a region covered by the solar cell module on the inclined surface, a drainage layer and a water stop layer covering the drainage layer are provided, and is a slope protection structure with a solar cell module.

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