KR20200110912A - Solar-cell power generation apparatus base structure using PHC file - Google Patents

Abstract

The present invention relates to a concrete pile foundation structure for a photovoltaic module or array. According to the present invention, the concrete pile foundation structure for a photovoltaic module or array comprises: a precast concrete pile; a photovoltaic module or array; one or more support columns supporting the photovoltaic module or array; and two or more bolts. According to the present invention, the period required for the installation of a facility can be significantly reduced.

Description

Solar-cell power generation apparatus base structure using PHC file}

The present invention relates to a concrete pile foundation structure of a photovoltaic module or an array, and more particularly, in particular, in soft ground such as a coastal area, wind is blown in a random direction, such as back and forth or up and down together with the weight of the photovoltaic module or array. The wind load caused by blowing is sufficiently safe against not only the conduction in the horizontal direction of the front, rear, left and right, but also the subsidence in the vertical direction, and at the same time, it is possible to secure sufficient economic feasibility with minimal cost, and to significantly shorten the installation period of facilities. It relates to a concrete pile foundation structure of a solar power module or array.

In general, buildings such as bridges and apartments have very large loads, such as their own weight, and are based on a structure that allows them to safely transmit the load to the rocky layer deep in the ground. Due to the fact that the field is not very large, in a normal subsurface geological condition, a simple concrete foundation is installed on the ground surface after excavating a little, and then the support column supporting the facility is fixed by anchor bolts, An array is installed or a facility is installed by fixing a support column and a photovoltaic module or array on a shallow foundation that is installed at a depth close to the ground by various methods.

However, in recent years, the demand for installation in various types of soft ground such as coastal, wetland, landfill, or other unused places, where solar power generation facilities are in good geological conditions such as inland mountainous areas, has rapidly increased. As a trend, at this time, it becomes difficult to use a shallow foundation with a depth close to the ground surface as described above. In order to be able to do so, facilities may be installed on the foundation by rock support piles that allow the load to be safely transmitted to the rock layers deep in the ground, such as in buildings such as bridges and apartments, but in this case, solar power generation facilities. The construction cost of the rock support pile becomes excessive compared to the overall loads such as the self-weight and wind load that affect the power generation, and the initial facility investment cost is too low compared to the expected future return from solar power generation. As a result, it becomes very difficult to generate photovoltaic power in a place that is in the soft ground.

As a background technology of the present invention, there is Patent Registration No. 1879141 "Basic reinforcement structure for solar power generation devices" (Patent Document 1). In the background art, in the'basic reinforcement structure for a photovoltaic device, a second pillar structure; A second anchor structure having a plurality of anchors; And a third reinforcing bar arrangement in which reinforcing bars are arranged in a checkerboard shape on a top view viewed from the top, wherein the second column structure includes a plurality of second column members; And a plurality of second reinforcing bar arrangements connected to at least one of the plurality of second pillar members and in which reinforcing bars are arranged in a checkerboard shape on a front view of at least one second pillar member as viewed from the side. The plurality of second column members and the plurality of second reinforcing bar arrangements are integrated, and a plurality of anchors provided in the second anchor structure are inserted into the rectangular shape formed by the plurality of second column structures. The plurality of anchors are arranged to form a columnar shape or a square shape on a top view of the plurality of anchors viewed from above, and the lower ends of the plurality of anchors are external to the columnar shape or the square shape. The second anchor structure includes a second anchor coupling member, wherein the second anchor coupling member includes: a plurality of anchor insertion holes into which the plurality of anchors are inserted; And a central hole formed at the center of the plurality of anchor insertion holes, wherein the second anchor structure and the third reinforcing bar arrangement are coupled to each other on the upper or lower side of the second anchor coupling member, and the second anchor coupling member Proposes'a foundation reinforcement structure for a photovoltaic device, characterized in that it is positioned higher than the second pillar member when the foundation reinforcement structure is installed.

However, the background technology has a problem in that it is not economical to construct a foundation reinforcing structure when the base structure is complicated, so it is difficult to construct and the construction period is lengthened, and when the size of the solar power generation structure is increased.

Patent Registration No. 1879141 "Base reinforcement structure for solar power generation device"

The present invention is to solve the above problems, by purchasing a precast concrete pile previously manufactured in a factory equipped with a predetermined facility into the ground of various kinds of soft ground to a predetermined depth. On top of that, a predetermined photovoltaic power generation facility is fixed and installed. At this time, it is the basis of the friction pile by the main surface friction, which is the frictional force generated between the outer surface of the precast concrete pile buried in the ground and the soils in the ground. Therefore, the size of the main surface friction force increases in proportion to the size of the outer surface area of the precast concrete pile. Therefore, all of the self-weight and wind loads generated by the solar facility are installed. A precast concrete pile buried in the ground in order to ensure that the size of the main surface friction force is sufficiently safe against subsidence in the vertical direction against the load. The surface area of the outside is sufficiently deep to secure a predetermined area, and at the same time, in the horizontal direction of the front, rear, left and right, not only the precast concrete pile itself but also the precast concrete pile. The top of the precast concrete pile and the photovoltaic power generation facility by a sufficiently safe structure that prevents damage or destruction such as bending or breaking at the connection part between the supporting pillars under the solar power generation facility. It is an object of the present invention to provide a solar power module or an array of concrete pile foundation structures that allow the lower support columns to be connected.

In the present invention, two or more PC steel wires (prestressed concrete steel wire, PC wire) are embedded and at the same time two or more combined with one end of a PC steel wire (prestressed concrete steel wire, PC wire). The nut, which is a female thread, is in a state embedded in one or both ends, and is manufactured in advance with a predetermined cross-sectional shape and a predetermined length in a factory equipped with a predetermined facility, and buried in the ground ( A precast concrete pile that becomes a 埋入); A photovoltaic module or array; One or more support pillars supporting the photovoltaic module or array (and; a predetermined thickness and width, and the upper surface is attached to the lower end of the support pillar, and a bolt is inserted to allow penetration. A bottom plate of a support column provided with one or more holes drilled and the lower surface of the precast concrete pile directly mounted on the upper upper end of the precast concrete pile; and a male screw having a predetermined shape and length. Consisting of more than two bolts; the above photovoltaic module by the state that the bolt is inserted into the nut, which is the female screw, through the hole drilled in the bottom plate of the support column and is tightened. Alternatively, it is intended to provide a solar power generation module or a concrete pile foundation structure of an array, characterized in that the array, the support column, the bottom plate of the support column, and the precast concrete pile are all integrally combined.

In addition, a concrete structure made of concrete of a predetermined shape is formed between the lower surface of the bottom plate and the upper upper end of the precast concrete pile, and the hole drilled in the bottom plate of the support column and the above The photovoltaic module or array, the support column, the bottom plate of the support column, the concrete structure, and the precast concrete pile as described above by the state that the concrete structure is collectively penetrated and is inserted into the nut, the female screw, and is tightened. It is intended to provide a foundation structure of a solar power module or an array of concrete piles, characterized in that all of the (precast concrete pile) are integrally combined.

In addition, the bolt is made of two-sided screw bolts without a bolt head with threads formed at the ends of both sides, and the thread on one side of the lower side of the bolt is embedded in the upper end of the precast concrete pile. It is inserted into the nut, which is an inserted female thread, and is fastened, or inserted into the nut, which is a female thread embedded in the upper end of the precast concrete pile through the concrete structure. It is fastened, and one side of the top protrudes upward while penetrating through the hole of the bottom plate, so that a nut, a second other female screw, is inserted into the thread above the bolt from the top side of the bottom plate to be fastened. It is intended to provide a concrete pile foundation structure of a solar power module or array.

In addition, there is a space spaced apart by a predetermined distance between the upper upper surface of the precast concrete pile or the upper upper surface of the concrete structure and the lower surface of the bottom plate, and the bolts are threaded at the ends of both sides. It is made of double-sided screw bolts without a bolt head, and the thread on one side of the lower side of the bolt is a nut, a female thread embedded in the upper end of the precast concrete pile. It is inserted into and fastened Alternatively, it is inserted into a nut, a female thread embedded in the upper end of the precast concrete pile through the concrete structure, and fastened, and one side of the upper part is inserted through the hole of the bottom plate and A nut, which is a third other female screw, is inserted into the thread of the bolt on the bottom side of the bottom plate 22 and a nut, which is a second other female thread, is inserted into the thread of the bolt on the top side of the bottom plate. It is intended to provide a concrete pile foundation structure of a solar power module or array, characterized in that this.

In addition, a concrete structure made of concrete of a predetermined shape is formed between the lower surface of the bottom plate and the upper upper end of the precast concrete pile, and a thread is drilled at the end of one side, so that the precast concrete pile (precast concrete pile) concrete pile) one or more reinforcing bars that are embedded in the concrete structure by being in a predetermined shape by inserting a thread drilled into the nut, which is a female screw at the top; One or more anchor bolts of a predetermined shape protruding from the top of the concrete structure by a predetermined length in a state where one side is embedded in the concrete structure and the other side is a threaded state, and ; With a nut, which is a second other female screw, fitted into a thread on one side of the anchor bolt; At least one hole provided in the bottom plate passes through the threaded portion of one or more anchor bolts protruding upward of the concrete structure, so that the bottom surface of the bottom plate is the upper side of the concrete structure. A nut, which is the second other female screw, is mounted on the upper surface of the bottom plate and is fastened while being inserted into the thread of the anchor bolt, so that the photovoltaic module or array and the support column and the support column are It is intended to provide a base structure of a solar power module or an array of concrete piles, characterized in that the bottom plate, the concrete structure, and the precast concrete pile are all integrally combined.

In addition, there is a space spaced apart by a predetermined distance between the upper upper surface of the concrete structure and the lower lower surface of the bottom plate, and in the thread of one side of the anchor bolt protruding upward from the upper surface of the concrete structure, Solar light, characterized in that a nut, which is a third other female screw, is inserted into the thread of the part that becomes the lower side, and a nut, which is a second other female thread, is inserted into the thread of the upper surface of the bottom plate. It is intended to provide the basic structure of concrete piles of power generation modules or arrays.

In addition, on the outer surface of the precast concrete pile, one or more protrusions protruding outward from the outer surface as a predetermined shape are formed on the outer surface of the solar power module or array of concrete piles. We want to provide a basic structure.

The concrete pile foundation structure of the photovoltaic power generation module or array of the present invention is a precast concrete pile manufactured in advance in a factory equipped with a predetermined facility, in various types of soft ground, and buried at a predetermined depth. The foundation of the friction pile by the main surface friction, which is the frictional force generated between the outer surface of the precast concrete pile buried in the ground and the soils in the ground at this time, by fixing a predetermined photovoltaic power generation facility on top of it. In this case, the size of the main surface friction is increased in proportion to the external surface area of the precast concrete pile. Therefore, the self-weight generated from the solar facility and the solar power generation facility is installed on top of it. Precast buried in the ground in order to ensure that the magnitude of the main surface friction force of the precast concrete pile in the vertical direction for all loads such as wind loads is sufficiently safe against the settlement in the vertical direction. The surface area outside the precast concrete pile is sufficiently deep to secure a predetermined area, and at the same time, it is not only the precast concrete pile itself but also in the horizontal direction of the front, rear, left and right. The precast concrete pile is secured by a sufficiently safe structure that prevents damage or destruction such as bending or breaking at the connection between the precast concrete pile and the supporting columns under the solar power plant. There is a very useful effect of allowing the support columns at the top and the bottom of the solar power plant to be connected to each other.

The following drawings attached to the present specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in the accompanying drawings. It is limited and should not be interpreted.
1 is a perspective view of a precast concrete pile manufactured in advance in a factory equipped with predetermined facilities.
2 is a cross-sectional view of FIG. 1.
3 is a perspective view and a cross-sectional view of an embodiment of a concrete pile foundation structure of the solar power module or array of the present invention.
4 is a perspective view and a cross-sectional view of another embodiment of a concrete pile foundation structure of the solar power module or array of the present invention.
5 is a perspective view of another embodiment of FIG. 4.
FIG. 6 is an enlarged cross-sectional view showing a connection state between a support column of a photovoltaic module or array and an upper end of a precast concrete pile in FIG. 5.
7 is a view of an embodiment in which the upper end of the precast concrete pile is connected to the support pillar of the photovoltaic module or the array by screw bolts on both sides in the base structure of the concrete pile of the solar power module or array of the present invention. It is an enlarged cross-sectional view.
Figure 8 is another embodiment in which the upper end of the precast concrete pile is connected to the support column of the photovoltaic module or array by means of screw bolts on both sides in the structure of the concrete pile of the solar power module or array of the present invention. It is an enlarged cross-sectional view of an example.
9 is a cross-sectional view of another embodiment of a concrete pile foundation structure of the solar power module or array of the present invention.
10 is a perspective view of an embodiment of a precast concrete pile of the present invention.

In the following, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the disclosed embodiments are illustrative for a clear understanding of the present invention, and the present invention is not limited thereto.

Hereinafter, the technical configuration of the present invention will be described in detail according to a preferred embodiment.

1 is a perspective view of a precast concrete pile manufactured in advance in a factory equipped with predetermined facilities, and FIG. 2 is a cross-sectional view of FIG. 1.

In the basic structure of the photovoltaic power generation facility 20 of the present invention, in order to make the production, transport, and installation relatively easy and the cost considerably inexpensive, while being able to be a friction pile, Use the precast concrete pile (10) to be produced.

A general precast concrete pile 10 has the same shape as in Figs. 1 and 2, and two or more PC steel wires (prestressed concrete steel wires) 15 are used in a pretension method. The concrete pile (10) is formed by centrifugal force by embedding it in the concrete section in the state that has been tensioned in advance. Together, prestressed concrete steel wire (PC wire) (15), pre-tensioned in advance, is embedded in the concrete section. It is a high and quite economical concrete pile (10).

In particular, in the above precast concrete pile 10, at both ends of two or more prestressed concrete steel wires (PC wires) 15 that are embedded in the concrete section in advance PC steel wire (prestressed concrete steel wire, PC wire) at one end as shown in Fig. 2 in order to tension the PC steel wire (PC wire) 15 in advance by a pretension method. A nut (11), a female thread of a predetermined shape that is connected and coupled to one end of (15), is provided, and a concrete pile is provided with a prestressed concrete steel wire (PC line) (15). )(10), and at this time, the nut 11, which is a female thread, has a cylindrical shape of a predetermined shape, and the thread is dug inside the cylinder, and one side is PC steel wire (prestressed concrete steel). It is combined with the end of the wire, PC line (15), and the other side is opened and embedded in the end of the concrete pile (10), especially in the shape of a cylinder. The end of the one end of the nut 11, which is a female screw made of, is open from the end of the concrete pile 10 to the outside. Since it is embedded in the end of )(10), in the end, from the outside, other bolts 30 of various shapes are inserted into the inner thread of the nut 11, which is a female thread, and tightened or fastened. Because of this, various other things for various purposes are attached to the end of the concrete pile (10), and other external bolts (30) and concrete piles (10) Purchased in advance at the end of By tightening or fastening by a nut 11, which is a female thread, various other things for various purposes can be assembled for a union in which the concrete pile 10 is integrated.

The present invention uses the nut 11 of the precast concrete pile 10 as described above, the support column 21 and the concrete pile of the solar power generation structure 20 ( It is intended to be able to easily assemble the top of 10).

3 is a perspective view and a cross-sectional view of an embodiment of the concrete pile foundation structure of the solar power module or array of the present invention, Figure 4 is a perspective view and cross-sectional view of another embodiment of the concrete pile foundation structure of the solar power module or array of the present invention to be.

As shown in Figs. 3 and 4, the concrete pile foundation structure of the solar power generation module or array of the present invention is that two or more PC steel wires (prestressed concrete steel wire, PC wire) 15 are embedded. At the same time, two or more nuts (11), which are two or more female threads joined to one end of a prestressed concrete steel wire (15), are embedded in one or both ends. A precast concrete pile (10), which is made in a state and is manufactured in advance with a predetermined cross-sectional shape and a predetermined length in a factory equipped with predetermined facilities, and is buried in the ground; At least one support column 21 for supporting the photovoltaic module or array 24; Precast concrete pile in a state in which at least one hole 221 through which the bolt 30 is inserted and penetrated while the upper surface is attached to the lower end of the support column 21 with a predetermined thickness and width (precast concrete pile) the bottom plate 22 of the support column 21 provided in a state in which the lower surface is directly placed on the upper upper end of the 10; Consisting of two or more bolts 30, which are male threads having a predetermined shape and length, the bolt 30 penetrates the hole 221 drilled in the bottom plate 22 of the support column 21 Thus, the photovoltaic module or array 24, the support column 21, and the base plate 22 of the support column and precast by the state of being tightened while being inserted into the female screw nut 11 It is made so that all of the precast concrete piles (10) are integrally combined.

At this time, the nut 11, which is a female thread, has a PC steel wire (prestressed concrete steel wire, PC wire) at one end as shown in Fig. 2 inside the precast concrete pile 10. In the state in which one end of 15) is coupled and connected very firmly, as shown in Fig. 3, a bolt 30 eventually leads to a prestressed concrete steel wire (PC wire) 15 and a nut that is a female thread. Since the nut 11, the bolt 30, and the bottom plate 22 of the support column 21 are all firmly coupled together, the photovoltaic module or array 24 as shown in FIG. ) Is assembled firmly with the top of the precast concrete pile (10) together with the support pillar (21), so that there is no damage such as bending or breaking in the horizontal direction by external forces such as wind load. It can be a sufficiently safe structure, and by setting the depth of buried in the ground of the precast concrete pile (10) to a predetermined size, it is possible to secure the main surface friction force enough to be sufficiently safe against vertical subsidence. In addition, in particular, a precast concrete pile (10) made in advance at the factory is buried in the ground, and the bottom plate (22) is placed on the upper surface of the pile (10), and then bolts ( The bolt (30) penetrates the hole 221 of the bottom plate (22) so that it is embedded in the upper end of the pile (10) in advance, and the nut (11) that is already provided is added to the bolt ( The process of assembling by inserting and tightening the screw thread on one side of the bolt) (30) is greatly simplified. In the end, the process of installing the facility is not only very simple, but also the period of installation is shortened, as well as the cost. You can save a lot.

In addition, in the above, the precast concrete pile 10 is buried in the ground at a predetermined depth that can secure the principal surface friction of a predetermined size that can be sufficiently safe against the vertical subsidence of the facility 20. However, the upper end of the pile may be made to be at the same height as the ground level, or, if necessary, to protrude a little higher than the ground or a little lower than the ground.

A photovoltaic power generation structure 20 is installed on the top of the precast concrete pile 10 provided as described above. The photovoltaic power generation structure 20 at this time is a photovoltaic module or an array ( 24) and one or more supporting pillars 21 supporting the same.

In the above, the support column 21 is provided in a variety of cross-sectional shapes according to need, and a precast concrete pile 10 is also provided in various cross-sectional shapes such as round or square as necessary. In the end, the upper end of the precast concrete pile 10 and the lower end of the support pillar 21 have different cross-sectional shapes. Therefore, the lower end of the support pillar 21 is separately provided. The bottom plate 22 of the bottom plate 22 is attached to be combined. At this time, the bottom plate 22 is preferably provided with a larger width than the cross-sectional area of the lower end of the support column 21, and a precast concrete pile (precast concrete pile). concrete pile) (10) It is made of various shapes such as a circle or square having a predetermined thickness as the width of the top or slightly larger, and the bottom plate 22 includes the shaft portion of the bolt 30 and It is provided in a state in which one or more holes 221 through which the threaded portion can be penetrated are drilled.

The bottom plate 22 as described above is attached to the lower end of the support column 21 so that it is in the same position as the nut 11, which is a female screw on the upper part of the precast concrete pile 10. By matching the positions of the holes drilled in the bottom plate (22) and the upper nut (11) of the precast concrete pile (10), the bottom of the bottom plate (22) is precast concrete pile (precast concrete pile). pile)(10) It is placed in a state in direct contact with the upper surface of the support column (21), the bottom plate (22) and the precast concrete pile (10) by bolts (30). It is assembled in a state that the upper ends are connected together.

4 and 5 are perspective views of other embodiments of the concrete pile foundation structure of the photovoltaic module or array of the present invention, and FIG. 6 is a cross-sectional view of FIG. 5.

3 and 4, in the case of the photovoltaic structure 20 having one support column 21, it may be installed on one precast concrete pile 10, and also As shown in FIG. 5, in the case of having two or more support pillars 21, it can be installed on two or more precast concrete piles 10 corresponding thereto. In the case where two or more support pillars 21 of the power generation structure 20 are provided, the precast concrete pile 10 corresponds to the support pillars 21 of two or more. It is also possible to equip it by embedding it in the ground at a certain depth.

In addition, if necessary, a separate space is provided by separating the lower surface of the bottom plate 22 and the upper upper surface of the precast concrete pile 10 by a predetermined distance. A concrete structure 40 made of concrete of a predetermined shape is formed in the space of the hole 221 through which a bolt 30 is drilled in the bottom plate 22 of the support column 21, and the above concrete structure 40 ) Is inserted into the nut 11, which is a female screw, and is tightened by passing through the photovoltaic module or array 24, the support column 21, and the support column 21. ) Of the bottom plate 22, the concrete structure 40 and the precast concrete pile (10) may be all integrally combined.

In particular, when two or more precast concrete piles (10) are buried in the ground, the heights of the tops of each pile (10) are different, or several precast concrete piles as needed. (precast concrete pile) As in Figs. 5 and 6, due to conditions such as dividing the upper part of the (10) into several and connecting to each other in the horizontal direction as concrete, a precast concrete pile A concrete structure 40 made of concrete of a predetermined shape is separately formed in the space between the upper surface of (10) and the lower surface of the bottom plate 22 by a predetermined distance. The bolt 30 is made to penetrate through the hole 221 of the bottom plate 22 and the concrete structure 40 at once, and the thread of the bolt 30 is the inside of the nut 11 It is fastened by being inserted into it.

In the above case, in order to allow the bolts 30 to pass through the concrete structure 40 to be formed first, the bolt is a method such as embedding a PVC pipe before pouring the concrete. A separate hole through which the (bolt) 30 can penetrate the concrete structure 40 is provided in advance in advance in the interior of the concrete structure 40.

In addition, in the above, the bolt 30 is a shaft portion having a predetermined length as a predetermined shape and a screw threaded on one side of the shaft portion, and the other side of the shaft portion is a bolt head ( Bolt head) may be provided with a conventional bolt (30), or if necessary, the screw thread is broken on both sides of the shaft without the bolt head (bolt head) as shown in Figs. It may be provided with various bolts of various shapes, such as the excitation double-sided screw bolts 30.

7 is a cross-sectional view of an embodiment to which the above-described two-side screw bolts are applied in the concrete pile foundation structure of the solar power module or array of the present invention, and FIG. 8 is the above in the concrete pile foundation structure of the solar power module or array of the present invention. It is a cross-sectional view of another embodiment to which both side screw bolts are applied.

As shown in FIG. 7 above, the bolt 30 is made of both screw bolts with threads on both ends of the bolt 30 without a bolt head, so that the thread on one side below the bolt 30 is a concrete structure. It is inserted into the nut 11, which is a female thread embedded in the upper end of the precast concrete pile 10 through 40, and is fastened, and one side of the upper side is the bottom plate. While penetrating through the hole 221 of (22), it protrudes upward so that the nut 31, which is a second other female thread from the upper surface of the bottom plate 22, is inserted into the thread above the bolt 30, and the fastening is performed. You can do it.

In particular, when a concrete structure 40 is separately provided between the upper surface of the precast concrete pile 10 and the lower surface of the bottom plate 22, it is provided with both screw bolts 30 as described above. The middle of both screw bolts (30) in the concrete structure (40) with the thread on one side inserted in advance into the nut (11) on the upper side of the precast concrete pile (10). It is common to have a bolt head by embedding the surface of the part in direct contact with the concrete so that the threaded part on the other side of the upper part protrudes above the top surface of the concrete structure 40. As the in-bolt 30 is provided, the process of providing a separate hole as a method of embedding a PVC pipe in advance before pouring the concrete of the crete structure 40 may become unnecessary.

In addition, as shown in FIG. 8, spaced apart by a predetermined distance between the upper upper surface of the precast concrete pile 10 or the upper upper surface of the concrete structure 40 and the lower lower surface of the bottom plate 22 The bolt 30 is made of two-sided screw bolts without a bolt head with threads formed at the ends of both sides, and the thread on one side of the lower side of the bolt 30 is precast concrete pile (precast concrete pile)(10) It is inserted into the nut(11), which is a female thread embedded in the upper part of the upper part, Alternatively, it is inserted into the nut 11, which is a female thread embedded in the upper end of the precast concrete pile 10 through the concrete structure 40, and is fastened. One side of the bottom plate 22 protrudes upward while penetrating through the hole 221 of the bottom plate 22, and a third other female thread, a nut 32, is inserted into the thread of the bolt 30 on the bottom side of the bottom plate 22. A nut 31, which is a second other female thread, may be inserted into the thread of the bolt 30 on the upper surface of the bottom plate 22 to be fastened.

With this configuration, it is possible to easily adjust the height of the bottom plate 22 as another third nut 32 provided under the lower surface of the bottom plate 22, so that the installation of facilities is faster and more convenient. You can do it.

9 is a cross-sectional view of another embodiment of the concrete pile foundation structure of the solar power module or array of the present invention.

In particular, as shown in FIG. 9, a concrete structure 40 made of concrete of a predetermined shape is formed between the lower surface of the bottom plate 22 and the upper upper end of the precast concrete pile 10,

A screw thread is drilled at the end of one side, and a thread drilled into the nut 11, which is a female screw on the upper part of the precast concrete pile 10, is inserted into a predetermined shape. 40) A state in which one or more reinforcing bars 51 to be embedded in it are provided, one side of the lower side is embedded in the concrete structure 40, and the other side of the upper side is a threaded state An anchor protruding upward of the concrete structure 40 by having one or more anchor bolts 52 of a predetermined shape protruding above the concrete structure 40 by a predetermined length. As a state in which one or more holes 221 provided in the bottom plate 22 penetrate through the threaded portion of the bolt (52), the lower surface of the bottom plate 22 is the concrete structure 40 as shown in FIG. 9A. ) To be placed on top of the bottom plate (22) in direct contact with the top surface of the bottom plate (22), and a second other female thread, a nut (53), to the thread of the anchor bolt (52). Insert and tighten to fasten the photovoltaic module or array 24, the support column 21, the bottom plate 22 of the support column 21, the concrete structure 40, and the precast concrete pile. ) (10) may be combined to be integral.

At this time, the shape of the reinforcing bar 51 and the anchor bolt 52 may be provided in a straight straight shape, or if necessary, at least one part in a predetermined shape in the concrete structure 40 is predetermined. It may be provided in a shape that is bent and bent in the direction of, so that resistance to pulling in the concrete structure 40 can be increased.

In addition, as shown in FIG. 9B above, a space spaced apart by a predetermined distance is formed between the upper upper surface of the concrete structure 40 and the lower lower surface of the bottom plate 22, and upwards of the upper surface of the concrete structure 40 In the thread of one side of the protruding anchor bolt 52, a nut 54, which is a third other female thread, is first inserted into the thread of the portion that becomes the lower surface of the bottom plate 22, and then the bottom plate 22 ) It is also possible to adjust the height of the bottom plate 22 by inserting a nut 53, which is a second other female screw, into the thread on the upper surface side to be fastened.

10 is a perspective view of an embodiment of a precast concrete pile of the present invention.

As shown in FIG. 10, the outer surface of the precast concrete pile 10 may have one or more protrusions 19 protruding outward from the outer surface as a predetermined shape. have.

In this way, by making one or more protrusions 19 formed, the main surface friction force of the precast concrete pile 10 can be increased to increase the frictional bearing capacity in the vertical direction even more. The position, shape, size, and thickness of the protrusions 19 may be formed in a variety of different shapes.

In the concrete pile structure of the solar power module or array of the present invention as described above, a precast concrete pile prepared in advance in a factory equipped with a predetermined facility is placed in the ground made of various types of soft ground. The main surface friction, which is the frictional force generated between the outer surface of the precast concrete pile buried in the ground and the soils in the ground at this time, is to be installed by fixing a predetermined photovoltaic power generation facility on top of it. As a result of the fact that the frictional pile is based on the basis of the friction pile, a solar power generation facility is installed on it, and the magnitude of the main surface friction increases in proportion to the external surface area of the precast concrete pile embedded in the ground. For all loads such as self-weight and wind load generated from solar facilities, the magnitude of the main surface friction secured from the precast concrete pile in the vertical direction cannot sufficiently safely support the subsidence in the vertical direction of the facility. Therefore, the depth of the precast concrete pile to be buried in the ground is to be provided by embedding so that a predetermined external surface area is obtained that can secure sufficient principal surface friction. At the same time, in the horizontal direction of the front, rear, left and right, not only the precast concrete pile itself, but also the connection between the upper end of the precast concrete pile and the supporting column under the solar power plant is bent or broken. There is a very useful effect of connecting the upper end of the precast concrete pile and the lower support column of the solar power generation facility by a sufficiently safe structure that does not cause the same damage or destruction.

Until now, the present invention has been described in detail with reference to the presented embodiments, but those of ordinary skill in the art can make various modifications and modifications without departing from the technical spirit of the present invention with reference to the presented embodiments. will be. The present invention is not limited by such modifications and variations of the invention, but is limited by the claims appended below.

Until now, the present invention has been described in detail with reference to the presented embodiments, but those of ordinary skill in the art can make various modifications and modifications without departing from the technical spirit of the present invention with reference to the presented embodiments. will be. The present invention is not limited by such modifications and variations of the invention, but is limited by the claims appended below.

10: precast concrete pile
11: nut
15: PC steel wire (prestressed concrete steel wire, PC wire)
19: protrusion (突起)
21: support pillar
22: bottom plate
221: hole
24: photovoltaic module or array
30: bolt
31: nut
32: nut
40: concrete structure
51: rebar
52: anchor bolt
53: nut
54: nut

Claims (7)

At the same time, two or more PC steel wires (prestressed concrete steel wire, PC wire) (15) are embedded and combined with one end of the PC steel wire (prestressed concrete steel wire, PC wire) (15). Two or more female threads, nuts (11) are embedded in one or both ends, and are manufactured in advance in a predetermined cross-sectional shape and a predetermined length in a factory equipped with predetermined facilities. And a precast concrete pile (10) that becomes buried in the ground;
A photovoltaic module or array 24;
At least one support column 21 for supporting the photovoltaic module or array 24;
A state in which at least one hole 221 is drilled to allow penetration by inserting a bolt 30 while the upper surface is attached to the lower end of the support column 21 with a predetermined thickness and width A bottom plate 22 of a support column 21 provided in a state in which the lower surface is directly placed on the upper upper end of the precast concrete pile 10;
Consists of two or more bolts 30, which are male screws having a predetermined shape and length,
The bolt 30 penetrates through the hole 221 drilled in the bottom plate 22 of the support column 21 and is inserted into the nut 11, which is the female screw, and is tightened. Solar power generation module or array (24), the support column (21), the bottom plate (22) of the support column, and the precast concrete pile (10) of the sun, characterized in that all are integrally combined Photovoltaic module or array of concrete pile foundation structure. The method according to claim 1,
A concrete structure 40 made of concrete of a predetermined shape is formed between the lower surface of the bottom plate 22 and the upper upper end of the precast concrete pile 10,
The nut (11), which is a female thread, is collectively penetrated by a bolt (30) through the hole (221) drilled in the bottom plate (22) of the support column (21) and the concrete structure (40). The photovoltaic module or array 24 and the support column 21 and the bottom plate 22 of the support column 21 and the concrete structure 40 and the precast concrete pile ( Precast concrete pile) (10) A solar power module or a concrete pile foundation structure of an array, characterized in that all are integrally combined. The method according to claim 1 or 2,
The bolt 30 is made of both screw bolts without a bolt head with threads formed at the ends of both sides,
The thread on one side of the lower side of the bolt 30 is inserted into the nut 11, which is a female screw embedded in the upper end of the precast concrete pile 10, and is fastened or concrete It is inserted into the nut 11, which is a female thread embedded in the upper end of the precast concrete pile 10 through the structure 40, and is fastened.
One side of the top protrudes upward while penetrating through the hole 221 of the bottom plate 22, so that a nut 31, which is a second other female thread from the top side of the bottom plate 22, is attached to the thread above the bolt 30. A solar power module or a concrete pile foundation structure of an array, characterized in that it is fastened while being inserted. The method according to claim 1 or 3,
There is a space spaced apart by a predetermined distance between the upper upper surface of the precast concrete pile 10 or the upper upper surface of the concrete structure 40 and the lower lower surface of the bottom plate 22,
The bolt 30 is made of both screw bolts without a bolt head with threads formed at the ends of both sides,
The screw thread on the lower side of the bolt 30 is inserted into the nut 11, which is a female thread embedded in the upper end of the precast concrete pile 10, and is fastened. Alternatively, it is inserted into the nut 11, which is a female thread embedded in the upper end of the precast concrete pile 10 through the concrete structure 40, and is fastened. One side protrudes upward while passing through the hole 221 of the bottom plate 22, and a nut 32, which is a third other female screw, is inserted into the thread of the bolt 30 on the bottom side of the bottom plate 22. A concrete pile foundation structure of a photovoltaic module or array, characterized in that a nut 31, which is a second other female thread, is inserted into the thread of the bolt 30 on the upper surface of (22). The method according to claim 1,
A concrete structure 40 made of concrete of a predetermined shape is formed between the lower surface of the bottom plate 22 and the upper upper end of the precast concrete pile 10,
A screw thread is drilled at the end of one side, and a thread drilled into the nut 11, which is a female screw on the upper part of the precast concrete pile 10, is inserted into a predetermined shape. 40) one or more reinforcing bars 51 that are embedded in the inside;
One or more anchors of a predetermined shape protruding upwards of the concrete structure 40 by a predetermined length in a state where one side is embedded in the concrete structure 40 and the other side is a threaded state Bolt (anchor bolt) 52;
With a nut 53 that is a second other female screw that is fitted into a thread on one side of the anchor bolt 52;
At least one hole (221) provided in the bottom plate (22) passes through the threaded portion of the at least one anchor bolt (52) protruding upward of the concrete structure (40) Thus, the lower surface of the bottom plate 22 is placed on the upper surface of the concrete structure 40, and the nut 53, which is the second other female thread, is placed on the upper surface of the base plate 22. The anchor bolt ) The photovoltaic module or array 24 and the support column 21 and the bottom plate 22 of the support column 21 and the concrete structure 40 and precast concrete are fastened while being inserted into the thread of the 52 Pile (precast concrete pile) 10 is a solar power module or a concrete pile foundation structure of the array, characterized in that all integrally combined. The method of claim 5,
There is a space separated by a predetermined distance between the upper upper surface of the concrete structure 40 and the lower lower surface of the bottom plate 22,
In the thread of one side of the anchor bolt 52 protruding upward from the upper surface of the concrete structure 40, the thread of the portion that becomes the lower surface of the bottom plate 22 is a nut (nut) ( 54) is fitted and a second other female thread, a nut 53, is inserted into the thread on the upper surface of the bottom plate 22 so that it is fastened. The method according to any one of claims 1 to 6,
A photovoltaic module, characterized in that the outer surface of the precast concrete pile 10 is formed with one or more protrusions 19 protruding outward of the outer surface as a predetermined shape. Array of concrete pile foundation structure.

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