JP2014077319A - Solar panel frame and construction method of solar panel frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction method of a solar panel frame and the solar panel frame by which formation of a foundation base of a solar panel and an installation work of the panel are easy, and which has high strength against wind power or earthquakes, etc.SOLUTION: As a construction method, a plurality of piles 5, 6 with H-shaped cross sections for supporting a solar panel are placed in the ground, for length of the piles exposed on the ground, a rear pile 6 is made longer than a front pile 5, and the solar panel 1 is connected to the tips of the piles 5, 6 by bolt tightening. In addition, a solar panel frame to be used for the construction method of the solar panel frame has: the plurality of piles 5, 6 with the H-shaped cross sections placed in the ground so that, for the exposed length on the ground, the rear side becomes longer than the front side; and a base rail 7 with a U-shaped cross section tightened to upper ends of the piles 5, 6 so as to connect the piles 5, 6 each other, and the solar panel is fixed to the base rail 7.

Description

  The present invention relates to a method for constructing a gantry for supporting a photovoltaic power generation panel (solar panel) installed on an outdoor ground, and a gantry for a solar panel used in this construction method.

  As is well known, solar power generation equipment installed in open spaces, etc., is composed of a plurality of solar panel modules connected in a rectangular plane to form a solar panel unit, and its outer edge is reinforced with horizontal members such as joists. At the same time, the joists are fixed to the concrete base on the ground with iron legs, and in this way, a plurality of solar panel units are spread over the open space.

  Usually, such a solar panel is installed so that each panel unit is inclined 10 ° to 30 ° southward depending on the latitude of the installation location, location conditions, and the like. For this reason, the panel unit is inclined by changing the height of the concrete base that supports the solar panel unit from the ground, or iron legs of different lengths are attached to the concrete base of the same height. The method of supporting and fixing the solar panel unit on this iron leg is adopted.

  Conventionally, this concrete foundation was constructed by drilling a hole in the ground, putting crushed stone into the bottom of the hole, installing a formwork in the hole, and pouring ready-mixed concrete to form the foundation. In order to eliminate the increase in man-hours caused by casting concrete at such construction sites, a pre-manufactured reinforced concrete column is used, and an inclined angle member is attached to the upper end surface perpendicular to the axis of the concrete column. The thing which made the said solar panel into the inclination state by adhering a solar panel is also disclosed (patent document 1).

JP 2012-43827 A

  In the placement method in which a hole is drilled in the ground of the panel installation location and the ready-mixed concrete is poured directly into it, it takes time to manage the placement time, drilling time, and a lot of work, increasing the construction cost. there were. Also, it is necessary to prepare iron legs with different lengths for connecting the concrete foundation and panel unit in advance, and connecting the iron legs to the foundation and panels requires a lot of work and labor. It was.

  In addition, the undulations of the ground to be installed and the foundations erected by the placement of ready-mixed concrete are also easily affected by soil quality, etc., and when the concrete foundations are constructed, there is some deviation in the position and height of the foundations. In such a case, this could not be easily corrected, causing problems such as being forced to re-place.

  Moreover, in the structure which attaches an angle member to the upper surface of a concrete pillar shown in patent document 1, the inclination angle of the solar panel is determined by the angle member, and the inclination angle of the panel can be easily set according to the situation such as the topography of the construction site. There is a problem that a plurality of inclined angle members having different inclination angles must be prepared in advance.

    It is an object of the present invention to provide a solar panel mount construction method and a solar panel mount that are easy to form a solar panel base and install a panel and that have high strength against wind and earthquakes. .

    The present invention also provides a solar panel mount construction method and a solar panel mount capable of easily adjusting the position of the connecting portion between the foundation pile and the panel during the construction even if the foundation pile is slightly shifted in position. The purpose is to provide.

    It is another object of the present invention to provide a method for constructing a solar panel mount that can significantly reduce construction time, construction labor, and construction cost compared to conventional construction methods.

  The solar panel mount according to the present invention is a solar panel mount that supports the solar panel on the ground, and connects the piles with a plurality of H-shaped piles that are driven into the ground. And a base rail having a U-shaped cross section fastened to the upper end of the pile, and a solar panel is fixed to the base rail.

  According to the other form of this invention, the solar panel mount which used the said pile as the H-type steel material pile is provided. By using the H-shaped steel, the contact area with the ground is large, and the resistance due to friction with the ground is increased accordingly, resulting in a solid platform.

  Moreover, according to the other form of this invention, the solar panel mount which made the said pile the H type prestressed concrete pile is provided. The H-shaped concrete pile increases the contact area with the ground, increases the frictional force, and withstands heavy loads with high compressive strength of the concrete, providing a stand that is resistant to wind and earthquakes.

  Moreover, according to the other form of this invention, the solar panel mount by which the machine frame member which can position-position with respect to this pile was interposed between the said pile and the said base rail is provided. Even if a slight shift occurs in the driving position of the H-shaped pile depending on the ground condition, the shift of the pile position can be absorbed by adjusting the position of the machine frame member, and the installation of the solar panel is not hindered.

  Furthermore, according to the other form of this invention, the said machine frame member is a frame member provided with the baseplate bolted to the said pile, and the upper board fixed to the said base rail, The bolt insertion hole of the said baseplate Has an inner diameter that allows the frame member to slide laterally with respect to the bolt to be inserted, and a pressing plate larger than the bolt insertion hole is provided between the bolt head and the bottom plate. A solar panel mount is obtained. Even if there is a slight shift in the driving position of the H-shaped pile due to the ground conditions, the machine-frame member is moved in the lateral direction before tightening the bolt (anchor bolt) that fixes the machine-frame member to the H-shaped pile. You can easily adjust the position by sliding the required amount. This can absorb the displacement of the pile position and does not hinder the installation of the solar panel.

  According to another aspect of the present invention, the pile is driven into the ground so that the upper end of the front pile is lower than the upper end of the rear pile. A solar panel mount tilted so that the rear side becomes higher is provided. By changing the driving depth of each H-shaped pile according to the situation of the ground at the installation location, it is possible to install the necessary solar panels without using special intervening members for inclination.

  The construction method of the solar panel mount according to the present invention is characterized in that a plurality of piles having an H-shaped cross section supporting the solar panel are driven into the ground, and the solar panel is connected to the tip of the pile by bolting. It is what.

  According to one form of this invention, the construction method of the solar panel mount which used the said pile as the H-type steel material pile is provided. By using H-shaped steel, the contact area with the ground is large, and the resistance due to underground friction is increased accordingly, resulting in a solid frame.

  According to the other form of this invention, the construction method of the solar panel mount which made the said pile the H type prestressed concrete pile is provided. The H-shaped concrete pile increases the contact area with the ground, increases the frictional force, and withstands heavy loads with high compressive strength of the concrete, providing a stand that is resistant to wind and earthquakes.

  According to the further another form of this invention, the construction method of the solar panel mount which interposed the cross-sectional U-shaped base rail between the said solar panel and the upper end of the said pile is provided. By using the U-shaped base rail, it is easy to connect the base rail to the solar panel and the gantry.

  According to the further another form of this invention, the construction method of the solar panel mount which interposed the machine frame member which can position-position with respect to this pile between the said pile and the said base rail is provided. Even if a slight shift occurs in the driving position of the H-shaped pile depending on the ground condition, the shift of the pile position can be absorbed by adjusting the position of the machine frame member, and the installation of the solar panel is not hindered.

  According to still another embodiment of the present invention, the pile is driven into the ground so that the upper end of the front pile is lower than the upper end of the rear pile, thereby raising the rear side of the solar panel from the front side. A method for constructing a solar panel mount tilted in this manner is provided. By changing the driving depth of each H-shaped pile according to the situation of the ground at the installation location, it is possible to install the necessary solar panels without using special intervening members for inclination.

  According to the present invention, it is not necessary to construct a foundation for supporting a solar panel by placing raw concrete on the site, but it is only necessary to drive an already formed H-shaped pile into the ground. Can be performed easily and in a short time, and a solid frame can be constructed without being affected by the soil quality of the installation site. Moreover, the driving depth of the pile can be easily set, and thereby the inclination angle of the solar panel can be set arbitrarily and accurately.

It is the perspective view seen from the front part side of the solar panel using the solar panel mount which concerns on Example 1 of this invention. It is a perspective view of the H type steel material pile in Example 1. FIG. It is a perspective view of the solar panel using the solar panel mount based on Example 2 of this invention. It is a side view of the solar panel using the solar panel mount based on Example 3 of this invention. It is an enlarged side view (a) of the A section of Drawing 4, and a side view (b) of a connecting member. It is a cross-sectional view of the H type prestressed concrete pile which concerns on Example 4 of this invention. It is a disassembled perspective view which shows the position adjustment mechanism part of the base rail in the H-shaped pile which concerns on this invention. It is a figure which shows an example of the position adjustment state of the position adjustment mechanism part shown in FIG. It is a figure which shows the other example of a position adjustment in the position adjustment mechanism part shown in FIG.

  Next, various embodiments of the present invention will be described with reference to the drawings. In addition, in these Examples, although it has shown about one solar panel unit which connected the several solar panel module, actually, this solar panel unit is installed side by side in the left-right direction and the front-back direction in multiple bodies. Is normal.

  Referring to FIG. 1, on a substantially horizontal and flat installation ground, eight solar panel modules 2 in which a large number of photovoltaic power generation elements are arranged in a matrix are arranged in two columns in the vertical direction (front-rear direction) and in horizontal rows (right and left The side edges of the solar panels 1 that are connected in four rows in the direction) and are unitized in a rectangular shape are reinforced by the joist member 3, and a predetermined angle (10 ° to 30 °) with respect to the ground surface 8 on a foundation platform to be described later. ) Is supported in an inclined manner. In the present invention, the lower side (the lower side, the south side) of the inclined solar panel 1 with respect to the ground 8 is referred to as the front side, and the higher side (the higher side, the north side) is referred to as the rear side. .

  In the first embodiment, the foundation for supporting the solar panel 1 has steel piles 5 and 6 having a H-shaped cross section as shown in FIG. 2 and a U-shaped cross section fixed to the upper end of the steel pile with bolts or the like. It is comprised by the base rail 7 of a shape. H-shaped steel piles 5 and 6 are driven into the ground at a predetermined depth at positions corresponding to the four corners of the rectangular solar panel 1. In this case, as shown in FIG. 1, the left and right steel piles 5 located on the front side have a shorter exposed length from the ground 8 than the left and right steel piles 6 located on the rear side. For example, if the total length of the four H-shaped steel piles 5, 6 in the front, rear, left and right is all 3000mm, the ground exposed length of the two steel piles 5 on the front side is 200mm and 2800mm is underground. The exposed length of the two steel piles 6 on the rear side is 650 mm, and 2350 mm is the underground driving length.

For each of the left and right steel piles, a base rail 7 having a U-shaped cross section is provided so as to connect the upper ends of the front steel pile 5 and the rear steel pile 6. The base rail 7 and the steel piles 5 and 6 are connected by fastening bolts that are screwed from the base rail 7 into the steel piles 5 and 6. The solar panel 1 is similarly fixed by a fastening bolt so that the joists 3 at the left and right side edges are placed on the upper side of the base rail 7.
Since the solar panel 1 is supported by the steel piles 5 and 6 having different heights from the ground 8 as described above, the solar panel 1 is installed in an inclined state with respect to the ground 8, and the inclination angle is simply the driving depth of the piles 5 and 6. It can be easily adjusted just by changing the height. Moreover, since the piles 5 and 6 are H-shaped cross sections, the contact area with the ground and the frictional resistance are large, and the solar panel 1 is blown by strong winds, so that the pulling force and bending force are applied to the piles 5 and 6. Can withstand even if added. Furthermore, by using an H-shaped pile, for example, even a soft ground with a ground strength of 10 N can be stably supported even with a solar panel with a unit of 20 kg.
In addition, it is also possible to fix the part of the panel joist member 3 of the panel directly to the H-shaped pile without interposing the base rail 7 as shown between the joist member 3 and the H-shaped pile.

  FIG. 3 shows Embodiment 2 of the present invention. In this case, two solar panel units 10 and 11 each having eight solar panel modules 2 are connected to the left and right. . The connecting portion of the panel units 10 and 11 is supported by a common H-shaped pile 9 and two U-shaped base rails 12 and 13. Also in this Example 2, the installation place of the solar panel is a case of almost horizontal and flat ground as a whole, and the three H-shaped piles 5 and 9 on the front side are more than the three H-shaped piles on the rear side. The exposed length on the ground is low, and thereby the solar panel units 10 and 11 are supported in an inclined state with respect to the horizontal ground.

  In the second embodiment, a machine frame member 15 whose position is adjustable is interposed between the H-shaped piles 5, 9, 6 and the base rails 7, 12, 13 on both the front side and the rear side. The joist member 3 of the solar panel 1 is bolted to the U-shaped base rails 7, 12, and 13, and the base rails 7, 12, and 13 are fixed to the machine frame member 15 by bolting (anchor bolts). 15 is similarly fixed to the upper end of each pile by bolting. Here, when the positions of the H-shaped piles 5, 9, 6 supporting the two solar panel units 10, 11 need to be slightly changed depending on the ground conditions, the joist member 3 of the panel outer frame with respect to the piles The machine frame member 15 to which the base rail is fixed is attached to the driven H-shaped piles 5, 9, and 6 so that the position of the base rails 7, 12, and 13 fixed to the base can be adjusted. The position can be adjusted in any direction. Note that the position-adjustable machine casing member 15 will be described in more detail later with reference to FIGS.

  4, 5 (a) and 5 (b) show a third embodiment of the present invention. Also in this case, the installation ground of the solar panel is illustrated as a horizontal and flat ground as a whole. In the first and second embodiments, the base rail interposed between the pile and the joist member on the side edge of the panel has a form extending in the front-rear direction of the panel. In the third embodiment, the side rail is shown in a side view of FIG. Thus, the base rail 7 is disposed so as to extend in the left-right direction of the solar panel 1 on both the front side and the rear side. The joist members 3 on both sides of the panel are inclined to the height from the front side to the rear side. However, in order to connect the joist base member 7 and the joist member 3 without difficulty, an L-shaped connection is provided. The base rail 7 is bolted to the joist member 3 via the member 16 (FIG. 5B). In this example, the short side portion of the L-shaped connecting member 16 is fixed to the U-shaped base rail 7, and the long side portion of the member 16 is fixed to the side portion of the joist member 3 on both sides of the panel. Even in this example, the H-shaped pile 5 is connected to the base rail 7 via the machine frame member 15 whose position can be adjusted. However, the H-shaped pile 5 may be directly fixed to the base rail 7. Of course.

  In Examples 1 to 3, the steel material having an H-shaped cross section is used as the H-shaped pile. However, the present invention is not limited to the steel material pile, and a concrete member formed in a columnar shape in advance, for example, H-shaped as in Example 4. It is good also as the prestressed concrete pile 17 of a cross section. As shown in FIG. 6, the prestressed concrete pile 17 has a plurality of PC steel wires 18 embedded in the pile length direction, and can sufficiently withstand lateral load, axial load, and bending moment. In particular, such a prestressed concrete pile 17 is strong against bending loads, and there is no fear of cracking during handling due to prestressed. Moreover, the compressive strength of concrete is high and it is excellent also in impact resistance. In addition, because it has an H-shaped cross section, its peripheral friction is larger than that of ordinary cylindrical piles, and the solar panel is supported by the tip resistance and peripheral friction force of the ground, so it is sufficiently stable against strong winds and earthquakes. Support is possible. Such a prestressed concrete pile is manufactured at a JIS factory, and quality control is thoroughly performed, so that high reliability is ensured. Immediate driving can be started in the state where it is carried into the construction site.

  Next, the above-described position-adjustable machine casing member will be described. 7-9, the position-adjustable machine frame member 15 has a box shape with one side open, and a base rail (not shown here) is fixed to the upper surface 15a by bolting. A bolt hole 19 is formed, and a large-diameter bolt through hole 20 for bolting to the upper end 17a of the prestressed concrete pile 17 is formed on the bottom surface 15b. Reference numeral 21 denotes a bolt hole drilled in the upper end 17 a of the prestressed concrete pile 17. On the lower side of the head of the anchor bolt 22 for fixing the machine frame member 15 to the pile 17, a pressing plate 23 larger than the inner diameter of the bolt through hole 20 is arranged in a form in which the anchor bolt 22 is inserted.

  Such a box-shaped machine frame member 15 is placed on the upper surface of the prestressed concrete pile 17, and the anchor bolt 22 is inserted into the bolt hole 21 of the pile 17 through the pressing plate 23 and the bolt through hole 20 on the bottom surface of the machine frame member 15. By inserting and tightening, the bottom surface of the machine frame member 15 is fixed to the concrete pile 17 by the pressing plate 23. Here, the bolt through hole 20 on the bottom surface of the machine frame member 15 is formed with an inner diameter larger than the outer diameter of the anchor bolt 22 as shown in the figure. For example, the inner diameter of the through hole 20 is 70 mm with respect to the M16 anchor bolt.

  By making the bolt through hole 20 larger in diameter than the anchor bolt 22 in this way, the machine frame member 15 can be placed laterally with respect to the prestressed concrete pile 17 before the anchor bolt 22 is tightened, as shown in FIG. It is possible to shift the direction of the machine frame member 15 with respect to the prestressed concrete pile 17, and thus the position of the base rail fixed thereto can be adjusted with respect to the pile 17. FIG. 8 shows a case where the machine frame member 15 is moved and adjusted in the X direction, and FIG. 9 shows a case where the machine frame member 15 is moved and moved in the Y direction. Even if H-type steel piles and prestressed concrete piles cannot be driven to the desired position due to the ground or topography, it is necessary to drive to a slightly deviated position. Can be installed.

  In the fifth embodiment described above, the case where the position-adjustable machine frame member is applied to the prestressed concrete pile has been described. However, the present invention can be similarly applied to the case of the H-shaped steel pile as in the first and second embodiments. .

  In the above Examples 1 to 5, the installation location of the solar panel is a case where the solar panel is installed on a substantially horizontal and flat ground as a whole, but depending on the installation location, the ground may be somewhat inclined, When the inclination of the ground is substantially the same as the desired inclination of the solar panel (including the inclination direction), the H-type pile to be driven has the same exposed length from the ground on both the front side and the rear side. In some cases, when the inclination direction of the ground is opposite to the required inclination direction of the solar panel, the exposed length of the front H-type pile is longer from the ground than the rear pile. And make sure that the solar panels mounted on the piles have the required slope. In this way, construction is performed by appropriately setting the driving depth of the H-shaped pile and the exposed length of the pile according to the situation of the installation ground on the site. In addition, since the inclination angle of a panel is based on the latitude of an installation place, a solar panel may be installed horizontally depending on a condition, and it is clear that such a form is also included in this invention.

DESCRIPTION OF SYMBOLS 1 Solar panel 2 Solar panel module 3 joist member 5, 6, 9 H-type steel pile 7, 12, 13 Base rail 10, 11 Solar panel unit 15 Machine frame member 16 L-shaped connection member 17 H-type prestressed concrete pile 18 PC steel wire 19 Bolt hole 20 Bolt through hole 21 Bolt hole 22 Anchor bolt 23 Pressing plate

Claims (13)

A solar panel base that supports the solar panel on the ground,
A solar panel mount, wherein a solar panel is fixed on top of a plurality of piles having an H-shaped cross section driven into the ground.   Between the solar panel and the upper end of the pile, a base rail having a U-shaped cross section fastened to the upper end of the pile is interposed so as to connect the pile, and the solar panel is fixed to the base rail. The solar panel mount according to claim 1, wherein:   The solar panel mount according to claim 1, wherein the pile is an H-shaped steel pile.   The solar panel mount according to claim 1, wherein the pile is an H-type prestressed concrete pile.   5. The solar panel mount according to claim 2, wherein a machine frame member capable of adjusting the position of the pile is interposed between the pile and the base rail.   The machine frame member is a frame member that includes a bottom plate that is bolted to the pile and an upper plate that is fixed to the base rail, and the bolt insertion hole of the bottom plate corresponds to the bolt to be inserted. 6. The sun according to claim 5, wherein the sun has an inner diameter capable of sliding the member in a lateral direction, and a pressing plate larger than the bolt insertion hole is provided between the bolt head and the bottom plate. Light panel mount.   The pile is driven into the ground so that the upper end of the front pile is lower than the upper end of the rear pile, whereby the solar panel is inclined so that the rear side is higher than the front side. The solar panel mount according to any one of claims 1 to 6.   A construction method of a solar panel mount, wherein a plurality of piles having an H-shaped cross section supporting a solar panel are driven into the ground, and the solar panel is connected to the upper part of the pile by bolting.   The construction method for a solar panel mount according to claim 8, wherein the pile is an H-type steel pile.   The construction method for a solar panel mount according to claim 8, wherein the pile is an H-type prestressed concrete pile.   The construction method of the solar panel mount according to any one of claims 8 to 10, wherein a base rail having a U-shaped cross section is interposed between the solar panel and the upper end of the pile.   The construction method of the solar panel mount according to claim 11, wherein a machine frame member capable of adjusting the position of the pile is interposed between the pile and the base rail.   The pile is driven into the ground so that the upper end of the front pile is lower than the upper end of the rear pile, and thereby the solar panel is inclined so that the rear side is higher than the front side. The construction method of the solar panel mount in any one of 8 thru | or 12.

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