JP2013151785A - Underground burying and fixing method for column - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underground burying and fixing method for a column, by which an excavation range can be small and which easily fixes the column.SOLUTION: A method of burying and fixing a column fitted with a power generation device utilizing natural energy upright on a ground surface includes the steps of: forming a hole part opened on a ground surface by excavating the ground surface; burying a first column pipe among a plurality of hollow column pipes including the first column pipe and a second column pipe as components as lengthwise divisions of the column in the hole part with one opening thereof directed to the opening of the ground surface; projecting at least two rod members housed in the hollow interior of the first column pipe to the outside through a hole part provided to a peripheral surface of the first column pipe, and horizontally extending to insert the rod members into the ground from a side face of the hole part; and connecting the second column pipe to a ground surface-side opening of the first column pipe.

Description

  The present invention relates to a column embedding fixing method for embedding and fixing a column to which a heavy object such as a solar power generation panel or a wind power generator is embedded in the ground.

  A method has been proposed in which a solar panel is installed on a support column upright from the ground. For example, in Patent Document 1, a block having a plurality of solar cell modules arranged upright on a box-shaped block, the block is lifted by a crane, buried in the ground, and the entire photovoltaic power generation unit A method of fixing the is disclosed. Patent Document 2 discloses a method of burying an embedded structure in the ground, pouring concrete around it and fixing it, and connecting and fixing the underground strut and the embedded structure with bolts. .

JP-A-8-88389 JP 2011-108854 A

  However, in the method of Patent Document 1, in order to fix the entire photovoltaic power generation unit, in the work of embedding the pillar, a block having a sufficient mass is buried by excavating a vast area compared to the diameter of the pillar. There is a need. In the method of Patent Document 2, in the embedding work of the strut, an area slightly larger than the diameter of the strut is excavated to embed the buried structure, but it is necessary to pour concrete, and before the concrete pouring is finished It is necessary to arrange bolts at predetermined points in each stage, and the construction process becomes complicated, and the construction period becomes longer due to the curing of the concrete.

  Therefore, an object of the present invention is to provide a column embedding fixing method that can fix a column easily with a small excavation range.

  In order to achieve the above object, the structure of the present invention is a method of embedding and fixing a column with a power generation device using natural energy upright on the ground, and excavating the ground to form a hole opening the ground. And opening the first strut tube of the plurality of hollow strut tubes including the first strut tube and the second strut tube, each of which is a component obtained by dividing the strut in the length direction. Embedded in the hole part toward the opening of the ground, and at least two rod members accommodated in the hollow inside of the first column pipe, the hole provided in the peripheral surface of the first column pipe A step of inserting the second column pipe into the ground side opening of the first column tube, and a step of inserting the second column tube into the ground from the side surface of the hole portion. It is characterized by providing.

  For example, the rod member is connected to an expansion / contraction mechanism provided inside the hollow of the column tube, and the rod member is extended in the horizontal direction by operating the expansion / contraction mechanism.

  For example, the expansion / contraction mechanism is a pantograph jack, and after the column pipe is embedded in the hole, the pantograph jack is operated and operated from the ground side opening of the column pipe.

  According to the present invention, it is possible to reduce the excavation range for installing a support column to which a power generator using natural energy such as a solar power generator is installed, simplify the construction, shorten the construction period, ， Easily fix the support in the ground.

It is a partial cross section front view which shows the installation state of the solar power generation device installed by employ | adopting the column embedding fixing method in embodiment of this invention. 3 is a plan sectional view showing the arrangement of a screw rod 21 and an expansion / contraction mechanism 22. FIG. It is a figure which shows the process of the support | pillar embedding fixing method in embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, this embodiment does not limit the technical scope of the present invention.

  FIG. 1 is a partial cross-sectional front view showing an installation state of a photovoltaic power generation apparatus installed by adopting a column embedding and fixing method according to an embodiment of the present invention. The solar power generation device 1 includes a rectangular frame 10, a solar cell panel 12 configured by arranging a large number of solar cell modules vertically and horizontally on the frame 10, and the orientation of the solar cell panel 12 according to the position of the sun. The drive device 14 for displacing the elevation angle and various control devices (not shown) (for example, a computer that performs predetermined control, a sensor, an input / output device, a communication device, a display device, etc.) are configured.

  The solar power generation device 1 is attached to the tip of a column 2 that stands upright from the ground, and the solar panel 12 that requires a large installation area is higher than the ground by a length corresponding to the length of the column (for example, several meters to 10 It will be arranged in about a meter). Compared to the case where the solar panel 12 is directly laid on the ground, the ground below the solar panel 12 can be used, and the land can be used effectively. The installation of the device 1 is an effective installation method when installing on the ground.

  The strut 2 is a hollow steel pipe, and its length and diameter dimensions and types are appropriately determined according to installation conditions such as weight and installation height of the solar power generation apparatus 1 and environmental conditions. The strut 2 is divided into at least two strut pipes in the length direction (in this embodiment, as an example, a case where it is divided into two strut pipes 2a and 2b is illustrated), and these are connected by bolt fastening. Configured. The lower column pipe 2a is embedded in a hole in the excavated ground so that a predetermined length on the upper opening end side protrudes above the ground.

  The column pipe 2a accommodates at least two screw rods 21 and a telescopic mechanism portion 22 connected to the screw rods 21 in the hollow interior. The screw rods 21 are respectively connected to both ends of the expansion / contraction mechanism 22 in the expansion / contraction direction. The telescopic mechanism portion 22 is operated so that the two screw rods 21 protrude outward from the hole portion 23 provided on the peripheral surface of the support pipe 2a, extend in the horizontal direction, and are grounded from the side surface of the hole portion of the ground. It is inserted inside. The screw rod 21 inserted horizontally in the ground reinforces the upright of the column 2 and functions as a rotation stopper for the column 2 to fix the column 2. The operation of the screw rod 21 and the expansion / contraction mechanism 22 will be described later.

  The expansion / contraction mechanism 22 is preferably a so-called pantograph jack. The pantograph jack is generally used to lift a car for changing the car tire. In this embodiment, a mechanism in which the height (width) is changed by turning the screw, The screw rod 21 is used for horizontal expansion and contraction. However, this does not prevent the use of telescopic devices other than pantograph jacks.

  FIG. 2 is a plan sectional view schematically showing the arrangement of the screw rod 21 and the expansion / contraction mechanism (pantograph jack) 22. The screw bars 21 are fixed and attached to both ends of the pantograph jack in the expansion / contraction direction, for example, by welding or bolt fastening. As shown in FIG. 2A, in a state where the pantograph jack is folded, the pantograph jack and the screw bar 21 connected thereto are arranged horizontally with respect to the ground, and the tip part of the screw bar 21 is It is accommodated in the column tube 2a in such a posture as to be caught in the hole 23. Then, as shown in FIG. 2B, when the pantograph jack is extended, the screw rod 21 protrudes from the hole portion 23 in the horizontal direction and is inserted into the ground from the side surface of the hole portion.

  FIG. 3 is a diagram showing the steps of the column embedding and fixing method according to the embodiment of the present invention. In FIG. 3A, first, the ground is excavated with an excavation drill to form a hole 30. The diameter of the hole may be approximately the same as or slightly larger than the diameter of the column tube 2a. In addition, the depth of the hole 30 is sufficient to support the column to which the photovoltaic power generator is attached, and is obtained in advance by known calculations.

  In FIG.3 (b), the support | pillar pipe | tube 2a is inserted in the formed hole part 30. FIG. Prior to insertion, the telescopic mechanism portion 22 and the screw rod 21 connected thereto are accommodated in the hollow interior of the column tube 2a, and the telescopic mechanism unit 22 is operated in advance so that the screw rod 21 is inserted into the hole of the column tube 2a. It is set in a state where it does not protrude from the part or slightly protrudes. That is, in a posture in which the support pipe 2a is inserted into the hole, the screw rod 21 is disposed substantially horizontally, and is hooked into the hole of the support pipe 2a, so that the expansion / contraction mechanism 22 is suspended in the support pipe 2a. It becomes. An operation handle for operating the expansion / contraction mechanism 22 is connected to the expansion / contraction mechanism 22 from the opening side of the column tube 2a.

  In FIG. 3 (c), after the support pipe 2a is inserted, the operation handle connected to the expansion / contraction mechanism section 22 is operated to extend the expansion / contraction mechanism section 22, whereby the screw rod 21 is attached to the hole of the support pipe 2a. Insert it into the ground from the side of the hole.

  In FIG. 3 (d), the telescopic mechanism 22 is extended to the maximum extension position and the screw rod 21 is inserted into the maximum length of the ground, and then the ground side opening of the support pipe 2a and the opening of the support pipe 2b are aligned. Then, the column pipe 2b is bolted to the column pipe 2a.

  As described above, in the method according to the present embodiment, the hole to be excavated for embedding the column pipe 2a may be approximately the same as or slightly larger than the diameter of the column pipe 2a. Since the amount is small and no concrete pouring work or curing is required, it is possible to embed struts with a simple construction method, and the construction period is greatly shortened. And the rotation stopper of the support | pillar 2 can be installed in the ground by simple operation of a pantograph jack, and the support | pillar 2 can be fixed.

  Further, when removing the solar power generation device 1 and the support column 2 once installed, the screw rod 21 can be easily attached to the support tube by operating the pantograph jack in the direction of contracting after removing the support tube 2b from the support tube 2a. 2a can be stored inside, and the column 2a can be easily pulled out.

  In the present embodiment, an example in which a solar power generation device is attached to the support column 2 is shown. However, the present invention is not limited to this. It is also applicable to.

  The present invention is not limited to the above-described embodiment, and there are design changes within a range that does not depart from the gist including various modifications and corrections that can be conceived by those having ordinary knowledge in the field of the present invention. Of course, it is included in the present invention.

  1: solar power generation device, 2: support column, 2a, 2b: support tube, 10: frame, 12: solar cell panel, 14: drive device, 21: screw rod, 22: expansion / contraction mechanism, 23: hole, 30 : Hole

Claims (2)

In a method of burying and fixing a column with a power generation device using natural energy upright on the ground,
Excavating the ground to form a hole where the ground opens;
Of the plurality of hollow support pipes including the first support pipe and the second support pipe, which are components obtained by dividing the support in the length direction, one opening of the first support pipe is an opening in the ground. Burying in the hole toward the
At least two rod members accommodated in the hollow interior of the first strut tube are penetrated from the hole provided in the peripheral surface of the first strut tube, protruded to the outside, and extended in the horizontal direction to form holes. Inserting into the ground from the side of the part,
And a step of connecting the second strut pipe to the ground side opening of the first strut pipe. A hollow column tube having a hole in the peripheral surface;
At least two rod members housed in the hollow interior of the strut tube;
An expansion / contraction mechanism coupled to the rod member and accommodated in a hollow interior of the column tube, extending the rod member through the hole provided in the peripheral surface of the column tube, and projecting to the outside, and extending in a horizontal direction; A strut tube structure comprising:

Images