JP4585757B2 - Spiral prop - Google Patents

Spiral prop Download PDF

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JP4585757B2
JP4585757B2 JP2003374086A JP2003374086A JP4585757B2 JP 4585757 B2 JP4585757 B2 JP 4585757B2 JP 2003374086 A JP2003374086 A JP 2003374086A JP 2003374086 A JP2003374086 A JP 2003374086A JP 4585757 B2 JP4585757 B2 JP 4585757B2
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flat bar
foundation
hole
twisted
column
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JP2005139614A (en
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常郎 後藤
篤夫 平田
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常郎 後藤
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Description

本発明は、コンクリートの基礎に立てる支柱に関するものでる。   The present invention relates to a support column that stands on a concrete foundation.

従来、コンクリートの基礎に支柱を立てる時は、図6に示す如く、先ず地面に穴を掘り、穴の底を突き固め、その上に中心に穴をあけたコンクリート製の基礎(4a)を置いて土を埋め戻し、支柱(6c)を基礎の穴に立て、間にモルタルを詰めて固定している。   Conventionally, when placing a support on a concrete foundation, as shown in Fig. 6, first dig a hole in the ground, solidify the bottom of the hole, and place a concrete foundation (4a) with a hole in the center on it. The soil is backfilled, and the pillars (6c) are stood in the holes in the foundation and fixed with mortar in between.

このような従来の支柱は、支柱が老朽化したり破損した場合、取り替えるには基礎毎掘り返して、新たに立て直さねばならないので、多額の費用と時間がかかっていた。
そこで本発明は、支柱だけを簡単に交換出来るようにして、費用と時間の軽減を図るものである。
In the case of such a conventional support column, when the support column is worn out or damaged, it is necessary to dig up the foundation and replace it with a new one.
Therefore, the present invention aims to reduce costs and time by making it possible to easily replace only the support.

本発明の基礎を示す図1により、支柱を簡単に交換出来る方法について説明する。先ず平鋼(1)の端の部分を少し残して、その先を捻ってねじり平鋼(2)を作る。次ぎに中心にねじり平鋼が入る円筒状の穴(3)をあけたコンクリートの基礎(4)を作る。そこで先ずコンクリートの基礎を地面に埋め込んで設置する。
次ぎにねじり平鋼を、基礎の穴に差し込んで立てる。この時平鋼の部分を基礎の表面から出しておく。次ぎに砕石(5)をねじり平鋼と穴との間に落とし込んで砕石を突き固めると、ねじり平鋼が固定される。
With reference to FIG. 1, which shows the basis of the present invention, a method for easily replacing the column will be described. First, the end of the flat bar (1) is left a little, and the tip is twisted to form the flat bar (2). Next, a concrete foundation (4) with a cylindrical hole (3) into which a twisted flat bar is inserted in the center is made. Therefore, the concrete foundation is first installed in the ground.
Next, a twisted flat bar is inserted into the hole in the foundation and stood. At this time, the flat steel portion is left out of the surface of the foundation. Next, when the crushed stone (5) is dropped between the twisted flat bar and the hole and the crushed stone is hardened, the twisted flat bar is fixed.

このねじり平鋼は、真直ぐに引き抜こうとしても、容易に抜けない特徴がある。これは上に引抜くと、スパイラルの羽根の部分が砕石を押し上げようとするが、砕石が穴の壁に押し付けられて、大きな摩擦力が生じ抜けなくなる。   This twisted flat bar has a feature that it cannot be easily pulled out even if it is pulled straight. When pulled up, the spiral blade portion tries to push up the crushed stone, but the crushed stone is pressed against the wall of the hole and a large frictional force is not generated.

そこでこれを抜く場合は、ねじり平鋼を回わせば簡単に抜ける。これは砕石
の間に、スパイラルの羽根の部分が単に挟まっている状態なので、羽根の傾斜に沿って回せば簡単に抜ける事になる。このようにねじり平鋼は、真直ぐに引き抜く事は出来ないが、回せば簡単に抜けるという特徴がある。
そこでこのねじり平鋼に、支柱を取付けてスパイラル支柱とすれば、簡単に支柱の交換が出来る。
Therefore, when removing this, it can be easily removed by turning a twisted flat bar. Since this is a state where the spiral blade part is simply sandwiched between crushed stones, it can be easily removed by turning it along the inclination of the blade. In this way, twisted flat bars cannot be pulled straight, but can be easily pulled out by turning.
Therefore, if a spiral post is attached to this twisted flat steel bar, the post can be easily replaced.

ここで、基礎の穴にねじり平鋼を入れ、間に砕石を詰めれば、ねじり平鋼が容易に抜けない事を実験しているので、その実験結果を説明する。
先ず、中心に直径11cmの穴があいた、直径30cmのコンクリート製円柱の基礎を用意する。次に巾75mm、厚さ9mm、長さ400mmのねじり平鋼を用意する。そこで基礎の穴にねじり平鋼を立て、一つはモルタルグラウトで固定したものと、もう一つは、穴に最大粒径25mmの砕石を充填したものを、夫々引張試験した。
Here, we are experimenting that twisted flat bars cannot be easily pulled out by putting twisted flat bars into the holes in the foundation and filling them with crushed stone.
First, prepare a foundation of a concrete cylinder with a diameter of 30 cm and a hole with a diameter of 11 cm in the center. Next, prepare a twisted flat bar with a width of 75 mm, a thickness of 9 mm, and a length of 400 mm. Therefore, a twisted flat bar was set up in the hole in the foundation, one was fixed with mortar grout, and the other was filled with crushed stone with a maximum particle size of 25 mm.

先ずモルタルグラウトで固定した場合の実験結果を、図7により説明する。
図7は、引抜きを開始してからの経過時間と引抜抵抗力の関係を示している。
引抜き開始から800秒まではグラウトが圧縮を受けながら引抜抵抗力が増加し、800秒を超えるとモルタルの圧縮が限界に達する。この時、より強度が大きい基礎による拘束を受けて急激に引抜抵抗力が増加する。引抜抵抗力が20KNに達した時点で、基礎は引張破断を起こした。
First, the experimental results when fixed with mortar grout will be described with reference to FIG.
FIG. 7 shows the relationship between the elapsed time from the start of drawing and the drawing resistance.
From the start of drawing up to 800 seconds, the pulling resistance increases while the grout is compressed, and after 800 seconds, the compression of the mortar reaches its limit. At this time, the pulling-out resistance suddenly increases due to the restraint by the foundation having higher strength. When the pulling resistance reached 20KN, the foundation broke tensile.

次ぎに砕石を充填した場合の実験結果を、図8により説明する。図8は、引抜きを開始してからの変位長さと引抜抵抗力の関係を示している。これを見ると、砕石を詰めた場合は、穴の口元から砕石を単純に詰め込んだにもかかわらず、モルタルグラウトで固定した場合と、ほぼ同等の20KNの引抜抵抗力を示している。
なお実験は4回行ない、砕石の詰め込みが緩いと思われる場合には、引抜抵抗力は低い値であった。そしてこの場合も最終的に基礎は破断した。
Next, the experimental results when the crushed stone is filled will be described with reference to FIG. FIG. 8 shows the relationship between the displacement length after the start of drawing and the drawing resistance force. This shows that when crushed stones are packed, crushed stones are simply packed from the mouth of the hole, but the pulling resistance of 20KN is almost the same as when fixed with mortar grout.
The experiment was carried out four times, and when the crushed stone was thought to be loose, the pulling resistance was low. In this case, the foundation finally broke.

以上の二つの比較試験により、引抜抵抗力は、モルタルグラウトで固定した場合と、砕石を充填した場合とが、ほぼ同等である事が分かる。   From the above two comparative tests, it can be seen that the pulling resistance is substantially the same when fixed with mortar grout and when filled with crushed stone.

従来の支柱は、破損した場合、基礎毎取り替えねばならず、時間と経費がかかっていたが、本発明のスパイラル支柱は、基礎はそのままにして、支柱だけを抜き取るが出来るにようにした。そして再度立てる時は、基礎の中の砕石を取り除けば、再び簡単に立てられるようになった。このように支柱の取替えの時間が短縮され、経費がかからないようになった効果がある。   When the conventional support is damaged, it is necessary to replace the foundation every time, which takes time and money. However, the spiral support of the present invention allows only the support to be pulled out while leaving the foundation intact. And when you set it up again, you can easily stand up again by removing the crushed stone in the foundation. As described above, there is an effect that the time for replacing the column is shortened and the cost is not increased.

次にスパイラル支柱を使用した実施例を順次説明する。   Next, embodiments using spiral struts will be sequentially described.

先ず、請求項1に基づく第1実施例を、図2により説明する。図2は、図1に示した基礎の上に出た平鋼の部分に、木材の支柱(6a)を取り付けた物である。この場合は木材の下に平鋼が入る溝を切り込み、溝に平鋼の部分を挟み込んで、ボルトで締めて支柱を立てている。   First, a first embodiment based on claim 1 will be described with reference to FIG. FIG. 2 shows a structure in which a timber support (6a) is attached to a flat steel portion protruding on the foundation shown in FIG. In this case, a groove in which a flat bar is inserted is cut under the timber, a flat bar portion is sandwiched in the groove, and the column is tightened with a bolt to stand up.

次ぎにこの支柱が老朽化したり破損した場合に、取り替える方法について説明する。この場合は支柱を回しながら引抜けば、簡単に抜ける。引抜いた後は、砕石を取り除き、新しい支柱を立てて再び砕石を入れればよい。このようにして支柱の交換を極めて簡単に短時間に行う事が出来る。   Next, a description will be given of how to replace the support column when it becomes obsolete or damaged. In this case, if you pull out while turning the column, it will come out easily. After pulling out, remove the crushed stone, set up a new column, and put the crushed stone again. In this way, the support can be replaced very easily in a short time.

次ぎに同じくこの方法を用いた、請求項2に基づく第2実施例を、図3により説明する。先ずパイプ(7)の中に平鋼を捻ったねじり平鋼(2)を、先だけ挿入して溶接してこれを支柱(6b)とする。次ぎにパイプを立てる円筒状の穴(3)を中心にあけたコンクリートの基礎(4)を作る。 Next, a second embodiment based on claim 2 using this method will be described with reference to FIG. First, a twisted flat bar (2) obtained by twisting a flat bar into the pipe (7) is inserted and welded to form a column (6b). Next, a concrete foundation (4) is formed with a cylindrical hole (3) for standing the pipe.

そこで先ずコンクリートの基礎を地面に埋め込んで設置する。次ぎに支柱を基礎の穴に差し込んで支柱を立てる。この時パイプの部分を少し穴の中に入れておく。そこで支柱を真直ぐに立てた状態で、パイプやねじり平鋼と、基礎の穴との間に砕石を落とし込む。そこで砕石を突き固めると、支柱が固定される。
そこで間にモルタル(8)を詰めると出来上がる。
Therefore, the concrete foundation is first installed in the ground. Next, insert the column into the hole in the foundation and set up the column. At this time, put the pipe part in the hole a little. Therefore, crushed stones are dropped between the pipe, the twisted flat bar, and the hole in the foundation with the column upright. Then, when the crushed stone is hardened, the column is fixed.
If you put mortar (8) in between, it will be ready.

次ぎにこれを交換の為に抜く場合は、モルタルを取り除いて支柱を回わせば、簡単に抜ける。支柱を引抜いた後は、砕石を取り除き、新しい支柱を立てて再び砕石を入れればよい。   Next, if you want to remove it for replacement, remove the mortar and turn the column to remove it easily. After pulling out the column, you can remove the crushed stone, set up a new column and put the crushed stone again.

図4は、請求項1に基づく第3実施例として、木の柵を示した物である。図1に示したように、中心に穴があいたコンクリートの基礎(4)を地面に並べて設置し、基礎の穴にねじり平鋼(2)を差し込み、ねじり平鋼と穴との間に砕石を落とし込んで突き固める。そしてねじり平鋼の先に木の角材の支柱(6a)を取り付け、支柱の間に角材を渡して柵とした物である。  FIG. 4 shows a wooden fence as a third embodiment based on claim 1. As shown in Fig. 1, a concrete foundation (4) with a hole in the center is placed side by side on the ground, a twisted flat bar (2) is inserted into the hole in the foundation, and a crushed stone is placed between the twisted flat bar and the hole. Drop down and harden. Then, a wooden rod support (6a) is attached to the tip of a twisted flat bar, and a square is passed between the supports to form a fence.

次ぎに図5は、請求項2に基づく第4実施例として、ガードレールを示した物である。図3に示した物と同じであるが、この場合はコンクリートの壁面(9)の上に、予めパイプが入る穴(3)があいている。この穴にねじり平鋼(2)を取付けたパイプ(7)を挿入し、間に砕石を落とし込んで突き固め、モルタルを詰めて支柱を作る。そして支柱の間をガードレールの鋼板で繋いで、ガードレールを形成している。 Next, FIG. 5 shows a guardrail as a fourth embodiment based on claim 2. Although it is the same as the thing shown in FIG. 3, the hole (3) into which a pipe enters beforehand is opened on the concrete wall surface (9). A pipe (7) with a twisted flat bar (2) attached is inserted into this hole, and crushed stones are dropped between them and hardened. And between the support | pillars is connected with the steel plate of the guard rail, and the guard rail is formed.

このように本発明のスパイラル杭は、コンクリートの基礎やブロックに穴をあけて、使用する事が出来るので、利用範囲が広い。   Thus, the spiral pile of the present invention can be used by making a hole in a concrete foundation or block, and thus has a wide range of use.

本発明基礎の正面図。The front view of this invention foundation. 本発明第1実施例の正面図。1 is a front view of a first embodiment of the present invention. 本発明第2実施例の正面図。The front view of 2nd Example of this invention. 本発明第3実施例の正面図。The front view of this invention 3rd Example. 本発明第4実施例の正面図。The front view of 4th Example of this invention. 従来の支柱と支柱の基礎。Traditional struts and strut foundations. ねじり平鋼を、モルタルグラウトで固定して実験した時のグラフ。A graph of an experiment with a twisted flat bar fixed with a mortar grout. ねじり平鋼を、砕石を詰めて固定して実験した時のグラフ。Graph when experimenting with twisted flat bars fixed with crushed stones.

符号の説明Explanation of symbols

1 平鋼 2 ねじり平鋼 3 穴
4、4a 基礎 5 砕石
6a、6b、6c 支柱
7 パイプ 8 モルタル 9 壁面









1 flat bar 2 twisted flat bar 3 hole
4, 4a Foundation 5 Crushed stone
6a, 6b, 6c strut
7 Pipe 8 Mortar 9 Wall









Claims (2)

平鋼の端の部分を残して、その先を捻ったねじり平鋼を作り、次ぎにこのねじり平鋼が入る円筒状の穴を、中心にあけたコンクリートの基礎を作り、この基礎を地面に埋め込んで設置し、次ぎに基礎の穴にねじり平鋼を差し込んで、端の平鋼の部分が基礎の表面から出た状態にして立て、そこでねじり平鋼と穴との間に砕石を落とし込み、最後に平鋼の端の部分に支柱を取付けた事を特徴とするスパイラル支柱。 Make a twisted flat bar with the end of the flat bar twisted, and then make a concrete foundation with a cylindrical hole centered in the cylindrical hole into which this twisted flat bar will be inserted, and place this foundation on the ground. Next, insert the twisted flat bar into the hole in the foundation, and put the end flat bar part out of the surface of the foundation, and then drop the crushed stone between the twisted flat bar and the hole, Finally, a spiral strut characterized by attaching a strut to the end of the flat steel. 平鋼を捻ってねじり平鋼を作り、パイプの中にこのねじり平鋼の先を挿入して溶接したものを支柱とし、次ぎにねじり平鋼とパイプの一部が入る円筒状の穴を、中心にあけたコンクリートの基礎を作り、この基礎を地面に埋め込んで設置し、次ぎに基礎の穴に支柱を差し込んで立て、パイプやねじり平鋼と、穴との間に砕石を落とし込んだ事を特徴とするスパイラル支柱。 Twist a flat bar to make a twisted flat bar, insert the tip of this flat bar into the pipe and weld it to a column, and then form a cylindrical hole into which the twisted flat bar and a part of the pipe enter, Make a concrete foundation opened in the center, embed this foundation in the ground, install it next, insert a column into the hole in the foundation, stand up, and drop the crushed stone between the pipe and twisted flat steel and the hole features and to Luz Pairaru posts.
JP2003374086A 2003-11-04 2003-11-04 Spiral prop Expired - Fee Related JP4585757B2 (en)

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KR100768467B1 (en) 2006-11-17 2007-10-18 주식회사 세원리테크 A bollard
JP5335200B2 (en) * 2007-04-09 2013-11-06 常郎 後藤 Spiral steel pipe pile
JP5437944B2 (en) * 2010-07-28 2014-03-12 常郎 後藤 Spiral steel, its application products and spiral steel manufacturing method
KR101999891B1 (en) * 2017-07-26 2019-07-12 김동철 Temporary soundproofing wall
KR101891927B1 (en) * 2017-08-10 2018-08-24 김동철 Temporary soundproofing wall

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