JP2015059341A - Screwing-in type foundation pile - Google Patents

Screwing-in type foundation pile Download PDF

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JP2015059341A
JP2015059341A JP2013193748A JP2013193748A JP2015059341A JP 2015059341 A JP2015059341 A JP 2015059341A JP 2013193748 A JP2013193748 A JP 2013193748A JP 2013193748 A JP2013193748 A JP 2013193748A JP 2015059341 A JP2015059341 A JP 2015059341A
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foundation pile
ground
screwed
buried
resin
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吉野 弘幸
Hiroyuki Yoshino
弘幸 吉野
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吉野 弘幸
Hiroyuki Yoshino
弘幸 吉野
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PROBLEM TO BE SOLVED: To provide a screwing-in type foundation pile used for a foundation of a stand for a photovoltaic power generation device, and not causing soil pollution.SOLUTION: One of screwing-in type foundation piles of the present invention is a foundation pile for fixing a structure of a photovoltaic power generation facility in the ground, and comprises a buried part where the foundation pile is screwed in the ground and an installation part capable of installing a solar panel or a panel stand, and the buried part and the installation part are made of metal, and the buried part includes a metallic helical blade screwed in the ground on its outer peripheral surface, and the buried part is covered with resin from the outside of its helical blade. Another of screwing-in type foundation piles of the present invention includes a resin-made buried part for screwing the foundation pile in the ground and a metallic installation part capable of installing the solar panel or the panel stand, and the buried part includes a resin-made helical blade screwed in the ground on its outer peripheral surface, and the buried part with the helical blade and the metallic installation part are connected and fixed.

Description

本発明は、地中にねじ込んで使用するねじ込み式(スクリュー式)の基礎杭に関し、特に、太陽光発電パネル(太陽光パネル)の設置に用いる架台の基礎として使用するのに適するねじ込み式基礎杭に関するものである。   The present invention relates to a screw-type foundation pile that is used by being screwed into the ground, and in particular, a screw-type foundation pile that is suitable for use as a foundation for a stand used for installation of a photovoltaic power generation panel (solar panel). It is about.

東日本大震災に伴う福島原子力発電所の事故以降、太陽光発電をはじめとする再生可能エネルギー(自然エネルギー、クリーンエネルギー)が注目を集めている。従来、太陽光発電に用いる太陽光パネルは屋根の上に取り付けるのが主流であった。しかし、再生可能エネルギー源(太陽光、風力、水力、地熱、バイオマス)を用いて発電された電気を、国が定める固定価格で一定の期間電気事業者に調達を義務づける「固定買取制度」の創設を契機として、地上(例えば、遊休農地や山林、ゴルフ場跡地など)に設置する野立て式の太陽光発電設備も普及し始めている。太陽光発電設備の地上への設置には架台が用いられ、その架台は地中に埋設するねじ込み式基礎杭によって支持される(例えば、特許文献1並びに非特許文献1及び2)。   Since the Fukushima nuclear power plant accident caused by the Great East Japan Earthquake, renewable energy (natural energy, clean energy) including solar power generation has attracted attention. Conventionally, solar panels used for photovoltaic power generation have been mainly installed on the roof. However, the establishment of a “Fixed Purchase System” that obliges electric utilities to procure electricity generated using renewable energy sources (solar, wind, hydropower, geothermal, biomass) at a fixed price determined by the government for a certain period of time. As a result, field-type solar power generation facilities installed on the ground (for example, idle farmland, mountain forests, golf course ruins, etc.) have begun to spread. A stand is used for installing the photovoltaic power generation facility on the ground, and the stand is supported by a screwed foundation pile buried in the ground (for example, Patent Document 1 and Non-Patent Documents 1 and 2).

特許第5232336号公報Japanese Patent No. 5232336

http://sunsunmate.jimdo.com/(西濃建設株式会社HP「太陽光発電システム基礎 クリナー(KRINNER)グランドスクリュー」)http://sunsunmate.jimdo.com/ (Seino Construction Co., Ltd. HP “KRINNER Grand Screw”) http://www.sanei-net.co.jp/ground#screw/(株式会社三英HP「グランドスクリュー」)http://www.sanei-net.co.jp/ground#screw/ (Sanei HP "Grand Screw")

従来のねじ込み式基礎杭は金属製であり、土中に埋設されると金属腐食が生じて強度不足になることがあるため、基礎杭の表面には腐食防止のために亜鉛メッキで被覆されているが、その亜鉛メッキは、地面への差し込み前に部分的に剥がれていたり、差込み前に剥がれていなくても差し込み時に剥がれたりすることがある。これにより、有害物質である亜鉛が土壌に溶出し、深刻な土壌汚染が生じている。   Since conventional screw-type foundation piles are made of metal and buried in the soil, metal corrosion may occur and the strength may be insufficient. Therefore, the surface of the foundation pile is covered with galvanization to prevent corrosion. However, the galvanizing may be peeled off partially before insertion into the ground, or may be peeled off at the time of insertion even if it is not removed before insertion. As a result, zinc, which is a harmful substance, is eluted into the soil, causing serious soil contamination.

本発明の目的は、土壌汚染の発生しないねじ込み式基礎杭を提供することにある。   An object of the present invention is to provide a screw-type foundation pile that does not cause soil contamination.

本発明のねじ込み式基礎杭は、太陽光発電設備の構造物を地中に固定する基礎杭であって、基礎杭が、地中にねじ込まれる埋設部と、太陽光パネル又はパネル架台を取付け可能な取付け部とを備え、前記埋設部と取付け部は金属製であり、前記埋設部はその外周面に地中へねじ込む金属製の螺旋翼を備え、前記埋設部がその螺旋翼の外から樹脂で被覆されたものである。   The screw-type foundation pile of the present invention is a foundation pile for fixing the structure of a photovoltaic power generation facility in the ground, and the foundation pile can be attached to a buried portion to be screwed into the ground and a solar panel or a panel mount. The embedded portion and the mounting portion are made of metal, the embedded portion is provided with a metal spiral blade screwed into the ground on the outer peripheral surface, and the embedded portion is made of resin from the outside of the spiral blade. It is coated with.

本発明のねじ込み式基礎杭は、太陽光発電設備の構造物を地中に固定する基礎杭であって、基礎杭が、地中にねじ込まれる樹脂製の埋設部と、太陽光パネル又はパネル架台を取付け可能な金属製の取付け部とを備え、前記埋設部をその外周面に地中へねじ込む樹脂製の螺旋翼を備えたものとし、前記螺旋翼付き埋設部と金属製の取付け部が連結固定されたものであってもよい。   The screw-type foundation pile of the present invention is a foundation pile for fixing a structure of a photovoltaic power generation facility in the ground, and the foundation pile is a resin buried portion screwed into the ground and a solar panel or a panel mount. And a metal-made mounting portion that is screwed into the ground on the outer peripheral surface of the buried portion, and the buried portion with the spiral blade and the metal mounting portion are connected to each other. It may be fixed.

本発明のねじ込み式基礎杭は、樹脂層の樹脂又は樹脂製の埋設部は、土壌汚染に無害な塩化ビニール、ポリエチレン、ポリカーボネート、FRP、その他の合成樹脂製とすることができる。   In the screwed foundation pile according to the present invention, the resin or resin embedded portion of the resin layer can be made of vinyl chloride, polyethylene, polycarbonate, FRP, or other synthetic resins that are harmless to soil contamination.

本発明のねじ込み式基礎杭には、次のような効果がある。
(1)螺旋翼を備えた金属製の埋設部の外周面が、螺旋翼の外から樹脂層で被覆されており、亜鉛メッキが施されていないので、亜鉛の溶出による土壌汚染が発生しない。
(2)土壌汚染の問題が生じないので、再生可能エネルギーとして注目される太陽光発電設備の普及の一助となる。
(3)土壌汚染の心配がないので、太陽光発電設備を撤去後の跡地を、別用途(例えば、農地)に利用しても障害がない。
(4)埋設部に亜鉛メッキを施す必要がないため、メッキ設備もメッキをする手間もメッキ材料も不要であり、それらに必要なコストを削減できる。また、メッキ廃液の排出による公害の問題もない。
The screw-type foundation pile of the present invention has the following effects.
(1) Since the outer peripheral surface of the metal buried portion provided with the spiral blade is covered with a resin layer from the outside of the spiral blade and is not galvanized, soil contamination due to zinc elution does not occur.
(2) Since the problem of soil contamination does not occur, it will help spread the solar power generation facilities that are attracting attention as renewable energy.
(3) Since there is no concern about soil contamination, there is no obstacle even if the site after the removal of the solar power generation facility is used for another purpose (for example, farmland).
(4) Since there is no need to galvanize the buried portion, there is no need for plating facilities, plating effort and plating materials, and the cost required for them can be reduced. Moreover, there is no problem of pollution due to discharge of plating waste liquid.

本発明のねじ込み式基礎杭の使用例を示す側面図。The side view which shows the usage example of the screwed-type foundation pile of this invention. 本発明のねじ込み式基礎杭を、バックホーで地中にねじ込む場合の説明図。Explanatory drawing in the case of screwing the screwed-type foundation pile of this invention in the ground with a backhoe. 本発明のねじ込み式基礎杭を、クレーンで地中にねじ込む場合の説明図。Explanatory drawing in the case of screwing the screwed-type foundation pile of this invention into the ground with a crane. 本発明のねじ込み式基礎杭の一例を示すもので、(a)は基礎杭本体の埋設部の全長に螺旋翼が設けられた場合の説明図、(b)は基礎杭本体の埋設部の下端にのみ螺旋翼が設けられた場合の説明図。An example of the screwed-type foundation pile of this invention is shown, (a) is explanatory drawing in case a spiral wing is provided in the full length of the embedding part of a foundation pile main body, (b) is the lower end of the embedding part of a foundation pile main body. Explanatory drawing when a spiral wing is provided only in the case. 本発明のねじ込み式基礎杭の樹脂被覆の説明図。Explanatory drawing of the resin coating of the screwed-type foundation pile of this invention. 本発明のねじ込み式基礎杭の一例を示すもので、(a)は基礎杭本体の上部に円形のフランジが設けられた場合の説明図、(b)は基礎杭本体の上部に四角形のフランジが設けられた場合の説明図、(c)は基礎杭の取付け部と埋設部を別成型した場合の説明図。It shows an example of the screw-type foundation pile of the present invention, (a) is an explanatory view when a circular flange is provided on the upper part of the foundation pile body, (b) is a rectangular flange on the upper part of the foundation pile body. Explanatory drawing at the time of being provided, (c) Explanatory drawing at the time of carrying out separate molding of the attachment part and burial part of a foundation pile.

(実施形態1)
本発明のねじ込み式基礎杭(以下、単に「基礎杭」という)1の一例を、図面を参照して説明する。本発明の基礎杭1は、図1に示すように、取付け部7aが地上に突出するように、埋設部7bが地中Eに埋設されて使用される。前記取付け部7aには、太陽光発電装置用のパネル架台2が設けられ、そのパネル架台2に太陽光パネル3が設置固定されている。基礎杭1は回転式のねじ込み装置4が装備されたバックホー5(図2)やクレーン6(図3)によって、地中Eにねじ込むことができる。
(Embodiment 1)
An example of the screw-type foundation pile (hereinafter simply referred to as “foundation pile”) 1 of the present invention will be described with reference to the drawings. As shown in FIG. 1, the foundation pile 1 of the present invention is used with the embedded portion 7 b embedded in the ground E so that the mounting portion 7 a protrudes on the ground. The mounting portion 7 a is provided with a panel base 2 for a photovoltaic power generation apparatus, and a solar panel 3 is installed and fixed on the panel base 2. The foundation pile 1 can be screwed into the underground E by a backhoe 5 (FIG. 2) or a crane 6 (FIG. 3) equipped with a rotary screwing device 4.

一例として図4(a)に示す基礎杭1は、下端が先鋭である基礎杭本体7の外周に、螺旋状の螺旋翼8が設けられている。基礎杭本体7の上部は図1のようにパネル架台2を取り付けるための取付け部7aであり、下部が地中Eに埋設される埋設部7bである。螺旋翼8は埋設部7bの外周に設けられている。螺旋翼8の螺旋ピッチは任意に設計することができる。螺旋翼8は埋設部7bの全長に設ける必要はなく、図4(b)のように、埋設部7bの下端側(差込み開始側)にのみ設けることもできる。   As an example, the foundation pile 1 shown to Fig.4 (a) is provided with the helical helix | wing 8 on the outer periphery of the foundation pile main body 7 whose lower end is sharp. The upper part of the foundation pile main body 7 is an attachment part 7a for attaching the panel mount 2 as shown in FIG. 1, and the lower part is an embedded part 7b embedded in the underground E. The spiral blade 8 is provided on the outer periphery of the embedded portion 7b. The helical pitch of the spiral blade 8 can be designed arbitrarily. The spiral blade 8 does not need to be provided over the entire length of the embedded portion 7b, and can be provided only on the lower end side (insertion start side) of the embedded portion 7b as shown in FIG.

螺旋翼8は一連ではなく螺旋方向に断続するものであってもよい。また、地中Eに挿し込み易い形状、構造であれば他の形状、構造であってもよく、例えば、数枚の円盤を埋設部7bの軸方向に断続的に設けたもの等であってもよい。   The spiral blade 8 may be intermittent in the spiral direction instead of a series. In addition, other shapes and structures may be used as long as the shape and structure can be easily inserted into the ground E. For example, several disks are intermittently provided in the axial direction of the embedded portion 7b. Also good.

前記基礎杭1は埋設部7bから取付け部7aまで樹脂層9(図5)で被覆されている。樹脂層9は螺旋翼8の外側から被覆してある。樹脂層9の樹脂には、土壌汚染に無害な樹脂、例えば、塩化ビニール、ポリエチレン、ポリカーボネート、FRP、その他の合成樹脂を使用することができる。埋設部7bの外周を樹脂層9で被覆するには、埋設部7bを樹脂成型用の金型にセットしてから、その金型内における埋設部7bの外周に樹脂を流し込んで被覆することもできる。   The foundation pile 1 is covered with a resin layer 9 (FIG. 5) from the embedded portion 7b to the mounting portion 7a. The resin layer 9 is coated from the outside of the spiral blade 8. As the resin of the resin layer 9, resins that are harmless to soil contamination, for example, vinyl chloride, polyethylene, polycarbonate, FRP, and other synthetic resins can be used. In order to cover the outer periphery of the embedded portion 7b with the resin layer 9, the embedded portion 7b is set in a mold for resin molding, and then the resin is poured into the outer periphery of the embedded portion 7b in the mold to cover it. it can.

前記取付け部7aには、パネル架台2との連結を容易にするフランジ10(図6(a)〜(c))を設けることもできる。フランジ10は例えば、図6(a)に示すような円板(円盤)或いは図6(b)に示すような角板(角盤)を用いることができる。フランジ10はこれら以外の形状であってもよく、不要な場合には設けなくてもよい。   The mounting portion 7a may be provided with a flange 10 (FIGS. 6A to 6C) that facilitates connection with the panel mount 2. As the flange 10, for example, a disc (disk) as shown in FIG. 6A or a square plate (square) as shown in FIG. 6B can be used. The flange 10 may have a shape other than these, and may not be provided if unnecessary.

基礎杭1の上には複数本のフレーム材F(図1)が組み立てられてパネル架台2(図1)が構成され、このパネル架台2の上に太陽光発電パネル3を設置できるようにしてある。パネル架台2の上端には角度自動調節機構を設けて、その上に設置する太陽光パネル3の傾斜角を調節できるようにしてもよい。太陽光パネル3が太陽光を効率良く受光できる適切な角度は、季節や設置する場所等によって異なるため、角度自動調節機構で太陽の位置に合わせて自動的に角度調節できるようにしておくのが望ましい。角度自動調節機構は太陽光パネル3の角度調節可能な首振り機能やパネル架台2を構成するフレーム材Fの長さ調節機能等とすることができる。フレーム材Fには鋼材製、樹脂製(FRPを含む)のパイプや棒を用いることができる。   A plurality of frame materials F (FIG. 1) are assembled on the foundation pile 1 to form a panel mount 2 (FIG. 1), and a photovoltaic power generation panel 3 can be installed on the panel mount 2. is there. An automatic angle adjustment mechanism may be provided at the upper end of the panel gantry 2 so that the inclination angle of the solar panel 3 installed thereon can be adjusted. The appropriate angle at which the solar panel 3 can receive sunlight efficiently varies depending on the season, the place where it is installed, etc., so the automatic angle adjustment mechanism should be able to automatically adjust the angle according to the position of the sun. desirable. The automatic angle adjusting mechanism can be a swing function capable of adjusting the angle of the solar panel 3, a length adjusting function of the frame material F constituting the panel mount 2, and the like. As the frame material F, pipes or bars made of steel or resin (including FRP) can be used.

(実施形態2)
本発明の基礎杭1は、図6(c)に示すように取付け部7aと埋設部7bを別々に成形し、取付け部7aを金属製とし、埋設部7bを樹脂製とすることができる。埋設部7bの外周面には螺旋翼8を突設する。この螺旋翼8もその上端から下端まで連続する連続式であっても、上端から下端までの間の一部が断続するものであってもよい。実施形態1と同様、埋設部7bの外周面に設ける螺旋翼8は螺旋以外の形状であってもよい。埋設部7bを樹脂製とする場合、土壌汚染に無害な塩化ビニール、ポリエチレン、ポリカーボネート、FRP、その他の合成樹脂を用いるのが望ましい。
(Embodiment 2)
As shown in FIG. 6C, the foundation pile 1 of the present invention can be formed by separately forming the attachment portion 7a and the embedded portion 7b, the attachment portion 7a made of metal, and the embedded portion 7b made of resin. A spiral wing 8 is projected from the outer peripheral surface of the embedded portion 7b. The spiral blade 8 may also be a continuous type that continues from the upper end to the lower end, or a portion between the upper end and the lower end may be intermittent. Similar to the first embodiment, the spiral blade 8 provided on the outer peripheral surface of the embedded portion 7b may have a shape other than the spiral. When the buried portion 7b is made of resin, it is desirable to use vinyl chloride, polyethylene, polycarbonate, FRP, or other synthetic resins that are harmless to soil contamination.

図6(c)に示すように、取付け部7aと埋設部7bを別々に成形した場合は、埋設部7bを樹脂製にし、その埋設部7bの上端部を筒状の取付け部7aの下端に挿し込んで連結固定することができる。連結固定は接着剤で行うことも他の連結構造、例えば、逆ネジ構造、その他の手段で行うこともできる。埋設部7bと取付け部7aは一直線に連結する。取付け部7aと埋設部7bは、基礎杭1を地中Eに埋設するときに空転しないように強固に連結固定する。   As shown in FIG. 6C, when the mounting portion 7a and the embedded portion 7b are separately formed, the embedded portion 7b is made of resin, and the upper end portion of the embedded portion 7b is made the lower end of the cylindrical mounting portion 7a. It can be inserted and fixed. The connection and fixing can be performed with an adhesive or other connection structures such as a reverse screw structure or other means. The embedded portion 7b and the attaching portion 7a are connected in a straight line. The attachment portion 7a and the buried portion 7b are firmly connected and fixed so as not to idle when the foundation pile 1 is buried in the ground E.

(使用例)
本発明の基礎杭1の使用例を、図面を参照して説明する。この使用例は、図5に示す基礎杭1を、図2に示すバックホー5を用いて埋設する場合の例である。
(1)図2のバックホー5のねじ込み装置4を、図5に示す基礎杭1に取り付ける。
(2)前記(1)の取付け状態でバックホー5を動作させて、基礎杭1を地中Eにねじ込む。基礎杭1は埋設部7bまで地中Eにねじ込み、取付け部7aは地表面より上に突出させておく。
(3)前記基礎杭1の取付け部7aにパネル架台2(図1)を取り付ける。パネル架台2の傾斜角度は、季節(太陽の角度)や設置する場所等に応じて調節する。
(4)前記(3)で設置したパネル架台2に太陽光パネル3(図1)を取り付け、太陽光発電設備の設置作業を完了する。
(Example of use)
The usage example of the foundation pile 1 of this invention is demonstrated with reference to drawings. This usage example is an example in which the foundation pile 1 shown in FIG. 5 is embedded using the backhoe 5 shown in FIG.
(1) The screwing device 4 of the backhoe 5 of FIG. 2 is attached to the foundation pile 1 shown in FIG.
(2) The backhoe 5 is operated in the attached state of (1), and the foundation pile 1 is screwed into the underground E. The foundation pile 1 is screwed into the underground E up to the buried portion 7b, and the mounting portion 7a is projected above the ground surface.
(3) The panel mount 2 (FIG. 1) is attached to the attachment part 7a of the foundation pile 1. The inclination angle of the panel mount 2 is adjusted according to the season (sun angle), the installation location, and the like.
(4) The solar panel 3 (FIG. 1) is attached to the panel mount 2 installed in the above (3), and the installation work of the photovoltaic power generation equipment is completed.

前記実施形態では、太陽光パネル3を設置する場合を一例として説明しているが、本発明の基礎杭1は、看板や照明器具等を設置する際の基礎杭として利用することもできる。   In the said embodiment, although the case where the solar panel 3 is installed is demonstrated as an example, the foundation pile 1 of this invention can also be utilized as a foundation pile at the time of installing a signboard, a lighting fixture, etc.

1 ねじ込み式基礎杭(基礎杭)
2 パネル架台
3 太陽光パネル
4 ねじ込み装置
5 バックホー
6 クレーン
7 基礎杭本体
7a 取付け部
7b 埋設部
8 螺旋翼
9 樹脂層
10 フランジ
E 地中
F フレーム材
1 Screw-in foundation pile (foundation pile)
2 Panel mount 3 Solar panel 4 Screwing device 5 Backhoe 6 Crane 7 Foundation pile body 7a Mounting part 7b Buried part 8 Spiral wing 9 Resin layer 10 Flange E Underground F Frame material

Claims (2)

太陽光発電設備の構造物を地中に固定する基礎杭であって、
基礎杭が地中にねじ込まれる埋設部と、太陽光パネル又パネル架台を取付け可能な取付け部を備え、
前記埋設部と取付け部は金属製であり、
前記埋設部はその外周面に地中へねじ込む金属製の螺旋翼を備え、
前記埋設部がその螺旋翼の外から樹脂で被覆されたものである、
ことを特徴とするねじ込み式基礎杭。
A foundation pile that fixes the structure of the solar power generation facility in the ground,
It has a buried part where the foundation pile is screwed into the ground, and a mounting part that can be attached to a solar panel or panel mount.
The buried part and the attachment part are made of metal,
The buried portion includes a metal spiral wing screwed into the ground on the outer peripheral surface thereof,
The buried part is coated with resin from the outside of the spiral wing,
Screwed foundation pile characterized by that.
太陽光発電設備の構造物を地中に固定する基礎杭であって、
基礎杭が地中にねじ込まれる樹脂製の埋設部と、太陽光パネル又はパネル架台を取付け可能な金属製の取付け部を備え、
前記埋設部はその外周面に地中へねじ込む樹脂製の螺旋翼を備えたものであり、
前記螺旋翼付き埋設部と金属製の取付け部が連結固定されたものである、
ことを特徴とするねじ込み式基礎杭。
A foundation pile that fixes the structure of the solar power generation facility in the ground,
It is equipped with a resin buried part where the foundation pile is screwed into the ground and a metal mounting part to which a solar panel or panel mount can be attached,
The buried part is provided with a resin spiral blade screwed into the ground on the outer peripheral surface thereof,
The buried portion with the spiral wing and the metal mounting portion are connected and fixed.
Screwed foundation pile characterized by that.
JP2013193748A 2013-09-19 2013-09-19 Screwing-in type foundation pile Pending JP2015059341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013193748A JP2015059341A (en) 2013-09-19 2013-09-19 Screwing-in type foundation pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013193748A JP2015059341A (en) 2013-09-19 2013-09-19 Screwing-in type foundation pile

Publications (1)

Publication Number Publication Date
JP2015059341A true JP2015059341A (en) 2015-03-30

Family

ID=52817107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013193748A Pending JP2015059341A (en) 2013-09-19 2013-09-19 Screwing-in type foundation pile

Country Status (1)

Country Link
JP (1) JP2015059341A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101717262B1 (en) * 2015-12-24 2017-03-16 전진용 An assembling solar photovoltaic power generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101717262B1 (en) * 2015-12-24 2017-03-16 전진용 An assembling solar photovoltaic power generator

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