JP6513470B2 - Foundation pile for installation, foundation pile for installation of solar panels, installation method of foundation pile and installation method of foundation pile for solar panels - Google Patents

Description

  The present invention relates to a foundation pile for installation, a foundation pile for installation of a solar panel, a method of installing the foundation pile, and a method of installing a foundation pile of a solar panel.

  In recent years, a large number of solar cell panels have been installed. The solar panels need to be fixed securely and semi-permanently.

  For example, Patent Document 1 (Utility Model Registration No. 3184322) discloses a solar cell panel mount having a structure suitable for shortening the work period.

  The solar cell panel mount described in Patent Document 1 includes a plurality of first single pipe pipes constituting a slope on which the solar cell panel is attached, and a plurality of second single pipe pipes supporting the first single pipe pipe. And a plurality of hollow spiral piles embedded in the ground and having spiral blades formed around, and each second single-pipe pipe is inserted into the inside of each spiral pile. It is fixed to a spiral pile.

  In addition, according to Patent Document 2 (Japanese Patent Laid-Open No. 2008-31772), the outer periphery of the prefabricated pile is not filled with the improved body without filling the inside of the prefabricated pile without increasing the cost for digging equipment and construction. It is disclosed about the construction method of the prefabricated pile which can be filled with a part reliably and easily, and the lid | cover used for the construction method.

  The lid used for the construction method of the already-made pile of patent document 2 and its construction method construction of the already-made pile which builds a pre-made pile in the improved body which stirred and solidified the solidification material and earth and sand in excavated ground In the method, after the prefabricated pile is built on the improved body, pressure is applied to the inside of the prefabricated pile.

  In addition, Patent Document 3 (Japanese Patent Laid-Open No. 2007-239420) is a foundation for preventing the floating of a structure, and reduces the strength of a filling made of a hardenable material filled in a pile hole. The structure of the foundation in which the anchor body is disposed on the ground below the pile hole, the construction method thereof, and the structure of the pile used for the foundation or construction method is disclosed.

  The structure of the foundation for preventing the lifting of the structure described in Patent Document 3 is disposed in a pile hole drilled in the ground below the structure and extends to the bottom of the pile hole to support the structure. A prefabricated pile having a hollow portion coaxially extending with the pile hole, a fixing body disposed in an anchor hole coaxially formed with the pile hole in the ground below the pile hole, and fixed to the fixing body, The connection means for connecting the fixing body and the structure, which includes the connection means disposed in the hollow portion and the anchor hole, and the filling made of the curable material filling the anchor hole and the hollow portion.

  Patent Document 4 (Japanese Patent Application Laid-Open No. 2002-348859) discloses an expandable prefabricated pile in which the diameter of the prefabricated pile can be expanded during or after the construction to improve the workability and reduce the cost. There is.

  In the already produced pile described in Patent Document 4, a guide hole penetrating from the inner surface of the pile hollow portion to the outer surface of the pile is formed at a plurality of longitudinal directions of the hollow prefabricated pile, and the diameter of the guide hole extending from the pile hollow portion to the outer surface of the pile is increased. A member is provided for access.

  Patent document 5 (Unexamined-Japanese-Patent No. 2002-220829) is disclosed about provision of the concrete screw pile which can be constructed without a noise, a vibration, etc., and also can acquire a big perpendicular supporting force.

  The concrete screw pile described in Patent Document 5 is a screw pile that can be screwed into the ground or the like, and has a hollow concrete pile main body having a circular cross section, and has screw blades for screwing on the outer surface thereof. It is a thing.

Utility model registration 3184322 gazette JP 2008-31772 A JP 2007-239420 A Unexamined-Japanese-Patent No. 2002-348859 Unexamined-Japanese-Patent No. 2002-220829

As described above, various developments have been conducted as described in Patent Documents 1 to 5.
However, it is difficult to easily withstand the sinking weight or pullout stress of the foundation pile. In particular, it is difficult to form a foundation pile at low cost.

  An object of the present invention is to provide a foundation pile for installation capable of responding to the sinking weight and pulling stress easily, a foundation pile for installing a solar panel, a method of installing the foundation pile and a method of installing a foundation pile of the solar panel. It is to provide.

(1)
The foundation pile for installation according to one aspect includes a cylindrical portion extending in the longitudinal direction, a flange portion formed at one end of the cylindrical portion, and one or more cuts formed at the other end of the cylindrical portion. And an inclined portion provided on the inner peripheral surface of the cylindrical portion in which one or a plurality of cuts are formed, and one or a plurality of holes formed on the other end side.

In this case, the cylindrical portion can be radially extended from the axial direction and an anchor can be formed by the cut and the inclined portion formed at the other end of the cylindrical portion. In addition, the solidifying member is compensated from the hole to the inside and the outside of the cylindrical portion. As a result, by providing the solidified member as a horizontal pile, a foundation pile for installation can be stably installed. Therefore, the foundation pile for installation can easily respond to the sinking weight and the drawing stress.
In addition, the inclined portion is provided to be inclined from the inner peripheral surface of the other end portion of the cylindrical portion to the axial center of the cylindrical portion.

(2)
In the foundation pile for installation according to the second aspect of the present invention, in the foundation pile for installation according to one aspect, the one or more holes may be formed at a position different from the one or more incisions.

In this case, since the one or more holes are formed at a position different from the one or more cuts, the strength of the cylindrical portion can be maintained.
Although the hole and the cut can be formed at the same height position, the strength of the cylindrical portion is significantly reduced. Therefore, it is preferable to form the holes and the notches at different heights.

(3)
In the foundation pile for installation according to the third invention, in the foundation pile for installation according to the first aspect or the second invention, the cylindrical portion may have a hexagonal or circular cross section.

  In this case, the strength can be maintained because the cross section of the tubular portion is hexagonal or circular. Also, the cross section of the tubular portion may be polygonal.

(4)
In the foundation pile for installation according to the fourth invention, in the foundation pile for installation according to the first aspect to the third invention, the cut may be formed in a rectangular shape.

  In this case, since the cut is rectangular, the cut can be easily formed. In addition, since the cut is 50 mm or more and 1000 mm or less, preferably 100 mm or more and 500 mm or less from the other end, the tubular portion can be radially extended from the axial direction to form an anchor.

(5)
In the foundation pile for installation according to the fifth invention, in the foundation pile for installation according to the first aspect to the fourth invention, the one or more holes may have a rectangular shape.

In this case, since the one or more holes are formed in a rectangular shape, they can be easily formed, and the amount of the solidifying member between the inside and the outside of the cylindrical portion can be adjusted by the rectangular width.
In addition, since the one or more hole portions are provided at a position of 300 mm to 2000 mm from a position of 100 mm to 700 mm from the other end, an appropriate solidifying member can be compensated inside and outside of the cylinder portion.

(6)
In the foundation pile for installation according to the sixth invention, in the foundation pile for installation according to the first aspect to the fifth invention, the cylinder portion is formed to be divisible into one end side and the other end side, and A flange portion is formed on one end side, and one or a plurality of cuts formed on the other end side of the cylindrical portion, and an inclined portion provided on the inner peripheral surface of the cylindrical portion on which one or a plurality of cuts are formed One or more holes formed on the end side may be formed, and an adjustment unit may be formed to connect one end side and the other end side of the cylindrical portion and to adjust the length of the cylindrical portion.

In this case, the length in the vertical direction of the tube portion can be adjusted. As a result, when installing the installation pile, the height in the vertical direction of the flange portion can be easily adjusted even if there is unevenness on the ground.
Moreover, an adjustment part can be adjusted with arbitrary methods, such as a screw, several holes, and a volt | bolt.

(7)
A foundation pile for installation according to a sixth aspect of the present invention is the foundation pile for installation according to the first aspect to the sixth aspect, further including a driving jig, the driving jig being in contact with the inclined portion, and the cylindrical portion The one or more notches may extend radially from the axial direction of the barrel and may contact the flange.

  In this case, the driving jig forcibly contacts the inclined portion, and the cylindrical portion around the cut portion expands in the outer peripheral direction of the cylindrical portion. Also, thereafter, the driving jig can contact the flange portion and push the foundation pile. Then, by pushing the driving jig, the driving jig gradually contacts the inclined portion, and the cylindrical portion around the cut portion spreads in the outer circumferential direction.

(8)
A foundation pile for installation of a solar panel according to another aspect includes the foundation pile for installation according to the first aspect to the seventh invention, and a solar panel installed in a flange portion.

  In this case, a foundation pile for installing a solar panel can be stably installed. As a result, it can respond to the sinking weight and the drawing stress.

(9)
According to still another aspect of the present invention, there is provided a method of installing a foundation pile comprising: a cylindrical portion extending in the longitudinal direction; a flange portion formed at one end of the cylindrical portion; and one or more formed at the other end of the cylindrical portion Foundation piles for installation including the notches, the inclined portion provided on the inner circumferential surface of the cylindrical portion in which the one or more notches are formed, and the one or more holes formed on the other end side It is an installation method of the foundation pile used, The foundation pile installation which arranges the foundation pile for installation in the vertical hole formed by digging the vertical hole for embedding the foundation pile for installation and the vertical hole formed by the excavation process After the process, an expansion process of pushing the foundation pile into the vertical hole and expanding one or more cuts in the radial direction from the axial direction of the cylinder by the inclined part, and after the expansion process, from the flange side to the hole position of the cylinder Also in the mortar throwing process of throwing mortar into the upper part That.

In this case, the vertical hole is excavated by the excavation process, the foundation pile is disposed in the vertical hole formed by the excavation process by the foundation pile installation process, the foundation pile is pushed into the vertical hole by the expansion process, and one or more cuts are inclined portions Thus, it is expanded from the axial direction to the radial direction, and after the expansion process, mortar is injected from the flange side to the upper part of the position of the hole portion of the cylinder by the mortar injection process.
As a result, the cut formed at the other end of the cylindrical part radially spreads the cylindrical part from the axial direction to become an anchor, and the solidifying member is compensated from the hole to the inside and the outside of the cylindrical part, It can be formed. Therefore, it can install stably.

(10)
The installation method of a foundation pile according to a tenth aspect of the present invention is the installation method of a foundation pile further including a driving jig in the method of installing a foundation pile according to another aspect, wherein the expanding step uses the driving jig One or more cuts may extend radially from the axial direction of the barrel.

  In this case, in the expansion step, the driving jig contacts the inclined portion, and the cylindrical portion around the cut moves in the outer peripheral direction of the cylindrical portion. In addition, the driving jig can contact the flange portion and push the foundation pile. Then, when the driving jig is pushed in, the driving jig gradually contacts the inclined portion, and the cylindrical portion around the cut extends in the outer peripheral direction.

(11)
An installation method of a foundation pile according to an eleventh aspect of the present invention is the installation method of a foundation pile according to the tenth aspect, wherein the driving jig has a pulling out structure, and the expanding step uses the driving jig. After one or a plurality of cuts are expanded in the radial direction from the axial direction of the cylindrical portion, only the driving jig may be pulled out by the pulling out structure.

  In this case, only the driving jig can be reliably pulled out by the pulling out structure in the expansion step.

(12)
The installation method of a foundation pile according to a twelfth aspect of the present invention is the installation method of a foundation pile according to the eleventh aspect of the present invention, in which a cylindrical portion formed separably at one end side and the other end side is connected And the adjustment process which adjusts the length of the perpendicular direction of a cylinder part may be included.

In this case, the length in the vertical direction of the tube portion can be adjusted. As a result, when installing the installation pile, the height in the vertical direction of the flange portion can be easily adjusted even if there is unevenness on the ground.
Moreover, an adjustment part can be adjusted with arbitrary methods, such as a screw, several holes, and a volt | bolt.

(13)
The installation method of the foundation pile of the solar panel according to the other aspect includes the installation method of the installation foundation pile according to the twelfth aspect of the present invention from the other aspect and the installation step of installing the solar panel on the flange portion .

  In this case, a solar panel can be installed in the flange portion. As a result, it can respond to the sinking weight and the drawing stress.

(A)
The foundation pile for installation according to the fourteenth invention comprises a cylindrical portion extended in the longitudinal direction, a flange portion formed at one end of the cylindrical portion, and one or a plurality of hole portions formed on the other end side And.

  In this case, when the foundation pile is vertically provided, a horizontal pile can be provided by charging and fixing mortar or the like to the hole. As a result, it is possible to easily respond to the sinking weight and the drawing stress.

It is a typical front view showing an example of a foundation pile for installation concerning this embodiment. It is a typical top view of FIG. It is a typical bottom view of FIG. It is a schematic cross section which shows an example of the AA cross section of FIG. It is a schematic diagram which shows an example of a cutting process. It is a schematic diagram which shows the condition at the time of installing a foundation pile in a hole. It is a schematic diagram which shows the condition which pushes a foundation pile into a hole. It is a schematic diagram which shows an example of a mortar injection | throwing-in process. It is a schematic diagram which shows an example of a mortar injection | throwing-in process. It is a schematic diagram which shows an example of the jig for driving in. FIG. It is a schematic diagram which shows an example of the jig for driving in. FIG. It is a schematic diagram for demonstrating the state which installs the foundation pile for installation using a driving jig. It is a schematic diagram for demonstrating the state which installs the foundation pile for installation using a driving jig. It is a schematic diagram for demonstrating the state which installs the foundation pile for installation using a driving jig. It is a schematic diagram for demonstrating the state which installs the foundation pile for installation using a driving jig. It is a typical sectional view for explaining other examples of a foundation pile. It is a schematic cross section for demonstrating the further another example of a foundation pile.

  Hereinafter, embodiments according to the present invention will be described using the drawings. In the following description, the same components are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description about them will not be repeated.

First Embodiment
FIG. 1 is a schematic front view showing an example of a foundation pile 100 for installation according to the present embodiment, FIG. 2 is a schematic top view of FIG. 1, and FIG. 3 is a schematic bottom view of FIG. It is. Moreover, FIG. 4 is typical sectional drawing which shows an example of the AA cross section of FIG.

The foundation pile 100 for installation shown in FIGS. 1 to 4 includes a cylindrical portion 200, a hole 300, a cut 400, an inclined portion 410 and a flange portion 500.
In addition, the foundation pile 100 concerning this Embodiment is mainly formed from a steel pipe. For example, it is preferable that the material is a steel material (S400) called rolled steel material for general structure, and a hot-dip galvanized plated carbon steel pipe for general structure (STK400).

  The flange portion 500 is provided at one end of the cylindrical portion 200. Further, in the flange portion 500, a hole 510 for attaching a solar panel (not shown) is formed. The hole 510 is formed of a long hole.

  A notch 400 is formed at the other end of the cylindrical portion 200. As shown in FIG. 3, four notches 400 are formed at an interval of 90 degrees. Although four cuts 400 are formed in the present embodiment, the present invention is not limited to this, and two, three, five, six, eight, or any other number of cuts may be used. May be formed.

  Further, the incision 400 is formed at a distance L1 from the other end of the cylindrical portion 200. Furthermore, as shown in FIG. 3 and FIG. 4, an inclined portion 410 is formed on the inner peripheral surface of the cylindrical portion 200 from the other end to the distance L1.

  The inclined portion 410 is formed from the inner peripheral surface of the other end portion of the cylindrical portion 200 toward the axial center of the cylindrical portion 200 toward the one end side. And the inclination part 410 is further formed toward an internal peripheral surface from an axial center so that inclination part 410 comrades may not contact.

  Subsequently, as shown in FIGS. 1 and 4, a hole 300 having a width T3 is formed with a length from the distance L2 from the other end to the distance L3 from the other end. In the present embodiment, two holes 300 are formed. The number of the holes 300 is not limited to two, and may be one or three or more, or may be a hole having any other shape such as an ellipse or a circle.

  Also, the holes 300 may be juxtaposed to a part further away from the other end by a certain distance. That is, the holes 300 may be formed in two stages, three stages, or other multistages.

(Installation method of foundation pile 100 for installation)
Next, FIGS. 5 to 9 are schematic process drawings for explaining the installation method of the foundation pile 100 for installation shown in FIGS. 1 to 4. The cylindrical portion 200 of the foundation pile 100 used in the present embodiment has a diameter (φ) of 90 mm, and the diameter of the flange portion 500 is 170 mm.

(Moving process)
FIG. 5 is a schematic view showing an example of the boring process.
First, as shown in FIG. 5, drilling and drilling are performed on the ground with a crawler or the like.
In this case, specifically, the hole 600 is formed with a diameter (φ) of 100 mm and a depth L10. In the present embodiment, the depth L10 is 700 mm.

(Pile installation process)
Next, FIG. 6 is a schematic view showing the situation when the foundation pile 100 is installed in the hole 600. As shown in FIG.

As shown in FIG. 6, the foundation pile 100 is inserted into the hole 600. The longitudinal length of the foundation pile 100 is, for example, 1350 mm.
In this case, the foundation pile 100 is disposed so as to protrude by 650 mm on the ground.

(Expansion process)
Next, FIG. 7 is a schematic view showing a state in which the foundation pile 100 is pushed into the hole bottom 610. As shown in FIG. Here, the cutting amount (distance) L1 is 50 mm or more and 1000 mm or less, preferably 100 mm or more and 500 mm or less.

As shown in FIG. 7, the flange portion 500 is pushed downward (in the direction of the arrow V1).
In this case, the end of the cylindrical portion 200 is expanded in the radial direction from the axial center of the cylindrical portion 200 in the direction of the arrow OP by the inclined portion 410 and the notch 400 provided on the inner peripheral surface of the cylindrical portion 200.
That is, the inclined portion 410 contacts the bottom of the hole bottom 610 and pierces, and the end of the cylindrical portion 200 bends in the circumferential direction.
As a result, the end of the radially expanded barrel 200 is formed as a substitute for the anchor.

(Mortar throwing process)
Then, FIG. 8 and FIG. 9 are schematic diagrams which show an example of a mortar injection | throwing-in process.

  As shown in FIG. 8, mortar 650 is poured into the hole 210 of the foundation pile 100. In this case, as shown in FIGS. 8 and 9, mortar 650 flows from the hole 300 to the side of the foundation pile 100 and is accumulated inside the cylindrical portion 200. As a result, a horizontal pile of mortar 650 is formed on the lower end side of the foundation pile 100.

  Finally, the mortar 650 is introduced to the surface of the flange portion 500, or sand or soil generated in the excavation process is returned to the top of the mortar 650.

  Installation of the foundation pile 100 is completed by the above. Two weeks after installation, the pullout test was tested to 1 ton, but no pullout phenomenon occurred.

  In addition, although the foundation pile 100 in this Embodiment was demonstrated as the foundation pile 100 for installation of a solar panel, it is not limited to this, You may use as a foundation of buildings, such as a vinyl house, Other foundations It may be used as

  Furthermore, although the inclined part 410 (refer FIG. 7) which a cross section consists of triangles is formed, it is not limited to this, You may consist of a flat state, even if it consists of a curved surface, if the problem of intensity does not arise. In the case where there is a thickness of the cylindrical portion 200, the end surface may be provided with an inclined portion which is inclined from the outside to the inside.

Second Embodiment
In the second embodiment, points different from the first embodiment will be mainly described. In the second embodiment, a driving jig 800 is further used as the foundation pile 100 for installation in the first embodiment.
The driving jig 800 is used by inserting it into the inside of the cylindrical portion 200 of the foundation pile 100 as described later.

10 and 11 are schematic views showing an example of the driving jig 800. As shown in FIG.
As shown in FIG. 10, the driving jig 800 includes a main body 810, a tip portion 820, and a driving holder 830.
Further, as shown in FIG. 11, in the case where the driving jig 800 is pulled out, a pulling out holder 850 may be attached instead of the driving holder 830.

The main body portion 810 has a cylindrical shape, and a tip end portion 820 is formed on one end side of the main body portion 810. The tip 820 has a frusto-conical shape. The distal end portion 820 is formed at an angle Θ r of 60 degrees as shown in FIG.
In addition, a drive holder 830 is formed on the other end side of the main body 810.
Furthermore, a hole 800 h for attaching a bolt B is formed on the top surface of the main body 810.

  The driving holder 830 has a shape in which the top surface portion 831 can be driven by each tool. Further, the lower end portion of the cylindrical portion 832 of the driving holder 830 has a shape that can be in contact with the flange portion 500 of the foundation pile 100 for installation.

In addition, as shown in FIG. 11, the top surface portion 851 is formed in the pullout holder 850, and the lower end portion of the cylindrical portion 852 has a shape that can contact the flange portion 500 of the foundation pile 100. Further, the top surface portion 851 and the top surface of the main body portion 810 are connected by bolts B via the holes 800 h of the driving jig 800.
That is, when removing the driving jig 800, the main body 810 is moved vertically upward by rotating the bolt B.

  As a result, even when the main body portion 810 and the tip end portion 820 of the driving jig 800 are in contact with the inclined portion 410 of the foundation pile 100, the driving jig 800 is reliably extracted vertically upward. be able to.

Then, FIGS. 12-15 is a schematic diagram for demonstrating the state which installs the foundation pile 100 for installation using the jig | tool 800 for driving.
In the second embodiment, FIGS. 12 to 15 are used instead of the steps of FIGS. 6 and 7 in the first embodiment.

First, as shown in FIG. 12, the foundation pile 100 for installation is inserted into the hole 600.
Next, as shown in FIG. 13, the driving jig 800 is inserted into the cylindrical portion 200 of the foundation pile 100.
In this case, the tip end 820 of the driving jig 800 contacts the inclined portion 410 of the foundation pile 100. The inclination of the tip end portion 820 causes the inclined portion 410 to expand from the axial center of the cylindrical portion 200 toward the outer peripheral side. That is, the inclined portion 410 is forcibly expanded in the radial direction from the axial center of the cylindrical portion 200.

As shown in FIG. 14, when the tip end portion 820 is further moved vertically downward, the tip end portion 820 comes in contact with the slope portion 410 and the slope portion 410 is spread radially, and then the drive holder of the driving jig 800. The end of the 830 (the lower end of the cylindrical portion 832) contacts the flange portion 500.
As a result, after the inclined portion 410 is surely expanded outward from the shaft core in a forced manner, the drive holder 830 contacts the flange portion 500 of the foundation pile 100 to transmit the force vertically downward, and further the foundation pile 100 It can be buried vertically below the hole bottom 610.

Subsequently, as shown in FIG. 15, when the driving jig 800 is pulled out, the driving holder 830 is removed and the pulling holder 850 is attached.
By rotating the mounting bolt B in the pullout holder 850, it is possible to easily pull out only the main body 810 in the vertically upward direction.
In addition, although the tip end portion 820 is formed to have a predetermined inclination, the present invention is not limited to this, and may be formed from a curved surface, or may be formed from any other surface.

  Then, it transfers to the mortar injection | throwing-in process in 1st Embodiment, and installation of the foundation pile 100 can be completed.

(Other example)
Next, FIG. 16 is a schematic cross-sectional view for explaining another example of the foundation pile.
As shown in FIG. 16, in another example, a foundation pile 100 a is used instead of the foundation pile 100. Hereinafter, the point which the foundation pile 100a differs from the foundation pile 100 is mainly demonstrated.

  In the foundation pile 100a, a male screw BO is formed in the cylindrical portion 200a, and a female screw BM is formed in the cylindrical portion on the flange portion 500a side. As a result, the vertical height position of the flange portion 500a can be adjusted.

  That is, when the foundation pile 100a is installed, the unevenness of the land can be absorbed by the screws BM and BO, and the height in the vertical direction of the top surface of the flange portion 500a can be changed.

Subsequently, FIG. 17 is a schematic cross-sectional view for describing still another example of the foundation pile.
As shown in FIG. 17, in another example, a foundation pile 100 b is used instead of the foundation pile 100. Hereinafter, the point which the foundation pile 100b differs from the foundation pile 100 is mainly demonstrated.

  In the foundation pile 100b, a hole CO is formed in the cylindrical portion 200b, and a hole CM is formed in the cylindrical portion on the flange portion 500b side. As a result, the height position of the flange portion 500b in the vertical direction can be adjusted by fixing the hole CM and the hole CO together and fixing them with a bolt or the like (not shown).

That is, when the foundation pile 100b is installed, the irregularities of the land can be absorbed by the holes CM and CO, and the vertical height of the top surface of the flange portion 500b can be changed. Moreover, as shown in FIG. 17, the combination of height adjustment of the perpendicular direction can be made to increase by forming several holes.
In particular, by using one or a few of the plurality of holes, the fixing can be performed, so that the adjustment can be easily performed.

  As described above, since the foundation piles 100, 100a, 100b for installation can withstand the sinking weight and the pulling out stress, the foundation piles 100, 100a even when the solar panels are lifted by the wind. , 100b can be prevented. Moreover, even if the snow is accumulated on the solar panel and the weight is increased, the settlement of the foundation piles 100, 100a, 100b can be prevented.

In addition, since the mortar 650 can be used as a horizontal pile of the foundation piles 100, 100a, 100b, it is possible to cope with the sinking weight and the drawing stress at low cost.
Further, since the incision 400 and the sloped portion 410 are formed, the foundation pile 100 can be easily radially expanded by driving it in place of the anchor.

  Further, in the present embodiment, the mortar 650 is formed in one layer, but it is not limited to this, and two layers, three layers, and other multilayers may be formed. As a result, the foundation piles 100, 100a and 100b for installation can be installed more easily.

  Further, by using the driving jig 800, the driving jig 800 can forcibly expand the inclined portion 410 in the outer circumferential direction. Further, by removing the drive holder 830 of the drive jig 800 and replacing it with the pullout holder 850, the drive jig 800 can be reliably removed.

In the present invention, the foundation piles 100, 100a, 100b for installation correspond to "foundation piles", the flanges 500, 500a, 500b correspond to "flanges", and the incision 400 is "one or more". The inclined portion 410 corresponds to the "inclined portion", the cylindrical portions 200, 200a and 200b correspond to the "cylindrical portion", and the driving jig 800 corresponds to the "driving jig". , The screw BM, BO or the hole CM, CO and the bolt correspond to the "adjustment part", the extraction holder 850 corresponds to the "extraction structure", and Figs. 5 to 9 correspond to the "installation method of foundation pile". .

  Although a preferred embodiment of the present invention is as described above, the present invention is not limited thereto. It will be understood that various other embodiments may be made without departing from the spirit and scope of the present invention. Furthermore, in the present embodiment, actions and effects according to the configuration of the present invention are described, but these actions and effects are only examples and do not limit the present invention.

100, 100a, 100b Foundation pile 200, 200a, 200b Tubular part 400 Cut 410 Inclined part 500, 500a, 500b Flange part 800 Jig for driving 830 Driving holder 850 Pulling out holder

Claims (10)

A longitudinally extending cylindrical portion,
A flange portion formed at one end of the cylindrical portion;
One or more cuts formed at the other end of the cylindrical portion;
The shaft is provided on the inner peripheral surface of the cylindrical portion in which the one or more cuts are formed, and is directed from the end of the other end to the one end side, and the shaft of the cylindrical portion from the inner peripheral side of the cylindrical portion An inclined portion consisting of a flat surface formed in the center direction,
A foundation pile for installation, including one or more holes formed on the other end side.   The foundation pile for installation according to claim 1, wherein the one or more holes are formed at a position different from the one or more cuts. The foundation pile for installation according to claim 1, wherein the cylindrical portion has a hexagonal or circular cross section. The foundation pile for installation according to any one of claims 1 to 3 , wherein the cut is formed in a rectangular shape. The foundation pile for installation according to any one of claims 1 to 4 , wherein the one or more holes have a rectangular shape. The cylindrical portion is formed to be divisible into one end and the other end,
The flange portion is formed on one end side of the cylinder portion,
One or more cuts formed on the other end side of the cylindrical portion;
An inclined portion provided on an inner peripheral surface of the cylindrical portion in which the one or more cuts are formed;
One or more holes formed on the other end side,
The foundation pile for installation of any one of Claim 1 to 5 in which the adjustment part which connects the one end side and the other end side of the said cylinder part, and adjusts the said cylinder part length was formed. A foundation pile for installation according to any one of claims 1 to 6 ;
A solar panel installed with a foundation pile, including a solar panel installed in the flange portion. A cylindrical portion extending in the longitudinal direction, a flange portion formed at one end of the cylindrical portion, one or more cuts formed at the other end of the cylindrical portion, and one or more cuts It is provided on the inner peripheral surface of the formed cylindrical portion, and is formed from the end portion of the other end toward the one end side, and from the inner peripheral side portion of the cylindrical portion toward the axial center of the cylindrical portion It is a method of installing a foundation pile using a foundation pile for installation including an inclined portion formed of the flat surface and one or more holes formed on the other end side,
A drilling process for drilling a vertical hole for burying the foundation pile for installation;
A foundation pile installation step of arranging a foundation pile for the installation in the vertical hole formed by the excavation process;
An expansion step of pushing the foundation pile into the vertical hole and expanding the one or more cuts in the radial direction from the axial direction of the cylinder portion by the inclined portion;
And a mortar throwing step of throwing mortar from the side of the flange portion to a position above the position of the hole portion of the cylindrical portion after the expansion step. The method for installing a foundation pile according to claim 8 , further comprising an adjusting step of connecting the cylindrical portion formed in one end side and the other end side so as to be separable, and adjusting the length of the cylindrical portion in the vertical direction. . A method of installing a foundation pile according to claim 8 or 9 ,
An installation step of installing a solar panel on the flange portion, the installation method of the solar panel installed by the foundation pile.

Images