JP2016017293A - Temporary enclosure fixing method and underground anchor - Google Patents

Temporary enclosure fixing method and underground anchor Download PDF

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JP2016017293A
JP2016017293A JP2014139260A JP2014139260A JP2016017293A JP 2016017293 A JP2016017293 A JP 2016017293A JP 2014139260 A JP2014139260 A JP 2014139260A JP 2014139260 A JP2014139260 A JP 2014139260A JP 2016017293 A JP2016017293 A JP 2016017293A
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steel
anchor
bolt
pipe
temporary enclosure
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JP5729670B1 (en
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昌弘 清田
Masahiro Kiyota
昌弘 清田
守 上村
Mamoru Kamimura
守 上村
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Abstract

PROBLEM TO BE SOLVED: To provide a fixing method that enables a temporary enclosure to be firmly fixed without securing extra space, and an underground anchor for use in the same.SOLUTION: In a temporary enclosure fixing method, reinforcing H-shaped steel frames are combined together. In an underground anchor, a circular steel plate having a circular opening provided in a central part is welded to both ends of a steel pipe; a first end has a plate, a plate holding bolt and a tightening bolt; and a second end has a cylindrical rubber serving as an anchor body, and a tip bolt penetrating the cylindrical rubber.SELECTED DRAWING: Figure 13

Description

本発明は、工事現場の外周を囲う仮囲いの固定方法及びそれに用いる土中アンカーに関するものである。   The present invention relates to a temporary enclosure fixing method for enclosing the outer periphery of a construction site, and a soil anchor used therefor.

一般に仮設物である図1に示す万能鋼板仮囲いでは構造物が出来上がれば撤去するため、万能鋼板仮囲いの固定方法として抜きやすい打込み単管パイプを用いて固定するのが一般的であった。万能鋼板仮囲い114は単管パイプの縦地110と横地111を直交クランプ112で組み合わせ、単管パイプの横地111に万能鋼板114やフラットパネルを取り付け、打込み単管パイプ116に補強としてヤラズ115と根がらみ117を自在クランプ113で繋いで使用してきた。   In general, the universal steel plate temporary enclosure shown in FIG. 1, which is a temporary structure, is removed when a structure is completed. Therefore, the universal steel plate temporary enclosure is generally fixed using a single-pipe pipe that can be easily pulled out. The universal steel plate temporary enclosure 114 is a combination of a vertical pipe 110 of a single pipe pipe and a horizontal pipe 111 with an orthogonal clamp 112. A universal steel plate 114 or a flat panel is attached to the horizontal pipe 111 of the single pipe pipe, and the Yarraz 115 is used as a reinforcement for the driven single pipe pipe 116. The root spring 117 has been used by connecting it with a free clamp 113.

しかしながら従来工法での打込み単管パイプ116は、地面に打込むことで単管の周辺摩擦抵抗だけで抜けなくしていたので、強風時には打込み単管パイプ116が抜けてしまって万能鋼版仮囲いが道路側に倒壊したり、ヤラズ115を設けないと鉛直方向の単管パイプの強度不足により撓みがでて万能鋼板やフラットパネルが外れて倒壊する事があった。その為、強風が予測される時には、工事現場では万能鋼板仮囲いを組み合わせた単管パイプからロープを引っ張って工事用重機や敷鉄板、建物等の重量物と繋いで引っ張る事で道路側に倒壊しないようにしていた。   However, since the single pipe pipe 116 driven by the conventional method is not pulled out only by the peripheral frictional resistance of the single pipe by being driven into the ground, the single pipe pipe 116 is pulled out during a strong wind and the universal steel plate temporary enclosure is Without collapse on the road side or without Yarazu 115, the vertical single pipe pipe would bend due to insufficient strength and the universal steel plate or flat panel could come off and collapse. Therefore, when strong winds are expected, the construction site collapses to the road side by pulling the rope from a single pipe pipe combined with a universal steel plate temporary enclosure and pulling it with heavy equipment such as heavy equipment for construction, laid iron plates, buildings, etc. I was trying not to.

そして、補強用に設けられる万能鋼板仮囲いのヤラズ115と根がらみ116は敷地の狭い工事現場でも補強として設けなければならないため、現場内で1.5m〜2.0mのデッドゾーンができ、現場内がさらに狭くなり、資材搬入のトラックやミキサー車が歩道や公道にはみ出してカラーコーン(商標登録)で囲み資材搬入作業を行っていた。また、ラフタークレーンなどの作業を行う時にも、場内の敷地が狭い場合は道路使用許可証を警察署に申請して許可をもらい、万能鋼板仮囲いを取外して歩道や公道にはみ出し、カラーコーン(商標登録)で囲み、ガードマンを配置した上で作業し、作業終了時には万能鋼板仮囲いを復旧して終了していた。   And, the universal steel plate temporary fence Yarazu 115 and the root 116 provided for reinforcement must be provided as reinforcement even in the construction site where the site is narrow, so a dead zone of 1.5m to 2.0m can be created in the site, The inside became even narrower, and trucks and mixer trucks for carrying materials protruded from the sidewalks and public roads, and they were carried in by carrying the materials by color corn (registered trademark). Also, when working on a rough terrain crane, etc., if the site is too small, apply for a road use permit at the police station, get permission, remove the universal steel plate temporary fence, protrude onto the sidewalk and public road, (Registered trademark) and work with a guard man placed. At the end of the work, the universal steel plate temporary enclosure was restored and finished.

また、敷地の狭い工事現場では資材置き場を設置するスペースが少ないため、作業スペースの一部を使用して資材置き場とし、作業の邪魔になったら空いているスペースに何度も移動して無駄に時間と労力を浪費し、安全通路を取るスペースも無いため、安全通路の無いところを作業員が通行して怪我をする危険も増していた。   In addition, since there is little space to set up a material storage area at a construction site with a small site, a part of the work space is used as a material storage area, and if it gets in the way of work, it can be moved many times to an empty space and wasted. Since time and labor were wasted and there was no space for safety passages, there was an increased risk of injury by workers passing through the places without safety passages.

改善策として万能鋼板仮囲いではなくメッシュフェンスを使って仮囲いを行う方法もあるが、メッシュフェンスでは高さが低く容易に取り外しができ、現場内も見えるため第三者が作業終了後に作業現場に侵入するのも容易である。従がって資材等の盗難の可能性や、子供が入って現場内で怪我をする可能性も高くなる。   As an improvement measure, there is a method that uses a mesh fence instead of a universal steel plate temporary fence, but the mesh fence is low in height and can be easily removed, and the inside of the site can be seen. It is easy to invade. Therefore, the possibility of theft of materials, etc., and the possibility of injuries in the field when a child enters are also increased.

またメッシュフェンスでは現場内の埃や飛散物が現場外に出ることも考えられる上、現場の外から重機などが動き回るのが見えるので威圧感を与え、通行人や近隣住民からのクレームが発生し易かった。   In addition, it is conceivable that dust and scattered objects on the site may go out of the site, and it is intimidating because heavy machinery etc. can move around from outside the site, causing complaints from passersby and neighboring residents It was easy.

この発明は余分なスペースを取る事無く、仮囲いを強固に固定する事ができる固定方法を提供しようとするものである。   The present invention is intended to provide a fixing method capable of firmly fixing a temporary enclosure without taking extra space.

請求項1の発明では、仮囲いを土中アンカーで固定する様にした。   In the invention of claim 1, the temporary enclosure is fixed with a soil anchor.

請求項2の発明では、補強H鋼架台の水平方向H鋼材と鉛直方向H鋼材をL型に構成し、前記水平方向H鋼材を土中に埋めて土中アンカーで固定し、H鋼材に仮囲いを固定する様にした。   In the invention of claim 2, the horizontal H steel material and the vertical H steel material of the reinforced H steel frame are configured in an L shape, and the horizontal H steel material is buried in the soil and fixed with a soil anchor. The temporary enclosure was fixed.

請求項3の発明では、鋼管パイプの両端部に、中心部に円形開口がある円形鋼製板が溶着され、第一の端部に締め付けボルトを有し、第二の端部にアンカー体となる円筒形ゴムと前記円筒形ゴムに貫入する先端ボルトを備え、前記鋼管パイプ内部で前記締め付けボルトと前記先端ボルトがジョイントナットに螺合し、前記鋼管パイプ内部にジョイントナット回転止めプレートを有し、前記ジョイントナットが回転せず上下運動だけになる様にした。   In the invention of claim 3, a circular steel plate having a circular opening at the center is welded to both ends of the steel pipe pipe, the fastening bolt is provided at the first end, and the anchor body is provided at the second end. A cylindrical rubber and a tip bolt penetrating into the cylindrical rubber, the fastening bolt and the tip bolt are screwed into a joint nut inside the steel pipe pipe, and a joint nut rotation stop plate is inside the steel pipe pipe. The joint nut does not rotate but only moves up and down.

請求項4の発明では、前記第一の端部にプレートとプレート押えボルトと締め付けボルトを有し、引抜き抵抗をプレート下側の地盤やアスファルト、コンクリートに伝え、しっかり固定する事ができる様にした。   In the invention of claim 4, the first end has a plate, a plate holding bolt, and a tightening bolt, and the drawing resistance is transmitted to the ground, asphalt, concrete under the plate, and can be firmly fixed. .

請求項1の発明によれば、土中アンカーを用いて工事現場の外周を囲う万能鋼板仮囲いを設けることができ、簡単に抜ける恐れが無く仮囲いを固定できる。   According to the first aspect of the present invention, the universal steel plate temporary enclosure that surrounds the outer periphery of the construction site using the soil anchor can be provided, and the temporary enclosure can be fixed without fear of coming off easily.

本来ヤラズを打込み単管パイプに繋ぐのは風荷重等により万能鋼板仮囲いが道路側に倒れないようにする補強の意味であるが、土中アンカーを使用する事により周辺摩擦抵抗に引抜き抵抗が増し加わり、万能鋼板仮囲いも道路側に倒れ難くなる。   Originally, Yaraz is driven and connected to a single pipe pipe in order to reinforce the universal steel plate temporary enclosure so that it does not fall to the road side due to wind loads, etc. In addition, the all-purpose steel plate temporary fence becomes difficult to fall to the road side.

請求項2の発明によれば、補強H鋼架台をL型に組み合わせる事により、万能鋼板仮囲いの鉛直方向単管パイプをH鋼材で補強する事ができるので単管パイプ上部の撓みの発生を防ぐことができる。依って、万能鋼板やフラットパネルが外れて倒壊する事がなくなりヤラズを設ける必要性が無くなる。   According to the second aspect of the present invention, by combining the reinforced H steel frame with the L type, the vertical single pipe of the universal steel plate temporary enclosure can be reinforced with the H steel material, so that the bending of the upper part of the single pipe is generated. Can be prevented. Therefore, the universal steel plate and the flat panel are not detached and collapsed, and the necessity of providing a Yarazu is eliminated.

補強H鋼架台の水平方向に伸びたH鋼は地中に埋める為、敷地内に出来るヤラズによるデッドゾーンの1.5m〜2.0mを有効スペースとして活用することでき、そのスペースに資材置き場や安全通路、搬入車両の現場内入場も可能になる。   Since the H steel stretched in the horizontal direction of the reinforced H steel frame is buried in the ground, it is possible to use 1.5 to 2.0 m of the dead zone created by Yarazu in the site as an effective space, and a material storage place in that space , Safety passages, and on-site entry of incoming vehicles.

土中アンカーと補強H鋼架台を組み合わせて万能鋼板仮囲いを組み立てる事が出来る為、歩道や公道にはみ出す事がなくなり第三者災害やクレームも減少する。また、資材を何度も移動して、無駄に時間と労力を浪費すること無く資材置き場を作るスペースが確保でき、安全通路も確保できるので通路の無いところを通行していた作業員の危険も減少する。依って、現場内外の危険要素と無駄な時間と労力の浪費が減少し、通行人や近隣住民からのクレームの発生も減少する事で工事コストも削減される。   Since the universal steel plate temporary enclosure can be assembled by combining the underground anchor and the reinforced H steel frame, it will not protrude on the sidewalk or public road, and third party disasters and complaints will be reduced. In addition, it is possible to secure a space to make a material storage place without wasting time and labor by moving materials many times, and a safety passage can be secured, so there is a danger of workers who have passed there without a passage. Decrease. Therefore, risk factors inside and outside the site, wasted time and waste of labor are reduced, and construction costs are reduced by reducing the occurrence of complaints from passersby and neighboring residents.

請求項3の発明によれば、通常の土中アンカーは構造体の一部であって撤去されないものであるが、本再利用型土中アンカーは、設置時は締め付けボルトを締める事で先端部のゴムが球形に変形する事によりアンカー体を形成し、引抜き抵抗が増し加わり抜け難くなり、撤去時には締め付けボルトを緩める事で変形していたゴムが元の形に戻り、引抜き抵抗が減り打込み単管パイプで行っていたように土中アンカーを抜く事が出来るので土中に何も残さない。   According to the invention of claim 3, the normal underground anchor is a part of the structure and is not removed, but this reusable underground anchor has a distal end portion that is tightened with a tightening bolt during installation. When the rubber is deformed into a spherical shape, an anchor body is formed, and the pulling resistance increases, making it difficult to pull out.When removing it, the deformed rubber is restored to its original shape by loosening the tightening bolts, and the pulling resistance is reduced. You can remove the anchor in the soil as you did with a pipe, so nothing remains in the soil.

請求項4の発明によれば、プレートとプレート押えボルトを設ける事により、請求項3記載の再利用型土中アンカーで生じる引抜き抵抗をプレート下側の地盤やアスファルト、コンクリートに伝える事ができる為、H鋼材をしっかり固定する事ができる。   According to the invention of claim 4, by providing the plate and the plate holding bolt, the drawing resistance generated by the reusable underground anchor of claim 3 can be transmitted to the ground, asphalt, and concrete below the plate. , H steel can be fixed firmly.

従来の仮囲いを設置した時の設置例での状態を示す斜視図である。It is a perspective view which shows the state in the example of installation when installing the conventional temporary enclosure. 本発明品の再利用型土中アンカー透視断面図である。It is a reusable underground anchor perspective sectional view of the product of the present invention. 本発明品の再利用型土中アンカー透視下部詳細斜視図である。It is a reusable underground anchor see-through | perspective detailed lower perspective view of this invention product. 本発明品の再利用型土中アンカーの締め付けボルトを締め付けた状況を示す透視下部詳細斜視図である。It is a see-through | perspective lower detailed perspective view which shows the condition which fastened the fastening volt | bolt of the reusable underground anchor of this invention product. 本発明品の再利用型土中アンカー透視上部詳細斜視図である。It is a reusable underground anchor see-through | perspective detailed detailed perspective view of this invention product. 本発明品土中アンカーを用いた仮囲いの補強H鋼架台の平面図である。It is a top view of the reinforcement H steel frame of temporary enclosure using the underground anchor of this invention product. 本発明品土中アンカーを用いた仮囲いの補強H鋼架台の横断面図である。It is a cross-sectional view of the reinforcement H steel frame of the temporary enclosure using the underground anchor of this invention product. 本発明品土中アンカーを用いた仮囲いの補強H鋼架台の水平方向詳細透視斜視図である。It is a horizontal detailed see-through perspective view of a reinforced H steel frame of a temporary enclosure using a soil anchor of the present invention product. 本発明品土中アンカーを用いた仮囲いの補強H鋼架台の鉛直方向詳細透視斜視図である。It is a detailed perspective view in the vertical direction of a reinforced H steel frame of a temporary enclosure using an anchor in the product of the present invention. 本発明品土中アンカーを用いた仮囲いの補強H鋼架台の正面図である。It is a front view of the reinforcement H steel frame of temporary enclosure using the underground anchor of this invention product. 本発明品再利用型土中アンカーを用いた仮囲いの補強H鋼架台と共に仮囲いを設置した時の設置例での状態を示す横断面図である。It is a cross-sectional view which shows the state in the example of installation when temporary enclosure is installed with the reinforcement H steel frame of temporary enclosure using the reusable underground anchor of this invention product. 本発明品再利用型土中アンカーを用いた仮囲いの補強H鋼架台の土中アンカーの締め付けボルトを締めた状態を示す透視横断面詳細図である。It is a perspective cross-sectional detail drawing which shows the state which tightened the bolt of the anchor of the underground anchor of the reinforcement H steel frame of the temporary enclosure using the present invention reusable underground anchor. 本発明品土中アンカーを用いた仮囲いの補強H鋼架台と共に仮囲いを設置した時の設置例での状態を示す斜視図である。It is a perspective view which shows the state in the example of installation when a temporary enclosure is installed with the reinforcement H steel stand of temporary enclosure using the underground anchor of this invention product.

図2は本発明に使用する再利用型土中アンカー透視断面図であり、円筒形鋼管パイプ25の一端部に円形鋼製板24が溶着され、円形鋼製板24に矩形の鋼製プレート23を重ねて締め付けボルト21を挿入する。矩形の鋼製プレート23の中心部には締め付けボルト21の呼び径より2mmくらい大きく円形開口を空けていて、円形開口を挟む形でプレート押えボルト22が螺合するよう、タップで雌ねじが切られて配列されている。円筒形鋼管パイプ25の他端部に設けられた先端ボルト28に平ワッシャ29を通し、アンカー体になる円筒形ゴム27に挿入する。円筒形ゴム27とジョイントナット26の間には回転止めプレート31が溶着された円形鋼製板30が挟持されている。上記先端ボルト28の雄ねじと締め付けボルト21をジョイントナット26と螺合させ、円形鋼製板30と鋼管パイプ25を溶着すると本発明の再利用型土中アンカーが出来上がる。   FIG. 2 is a perspective sectional view of a reusable underground anchor used in the present invention. A circular steel plate 24 is welded to one end of a cylindrical steel pipe pipe 25, and a rectangular steel plate 23 is attached to the circular steel plate 24. And tightening bolt 21 is inserted. At the center of the rectangular steel plate 23, a circular opening is made about 2 mm larger than the nominal diameter of the fastening bolt 21, and a female screw is cut with a tap so that the plate presser bolt 22 is screwed with the circular opening interposed therebetween. Are arranged. A flat washer 29 is passed through a tip bolt 28 provided at the other end of the cylindrical steel pipe 25, and is inserted into a cylindrical rubber 27 serving as an anchor body. Between the cylindrical rubber 27 and the joint nut 26, a circular steel plate 30 to which a rotation stop plate 31 is welded is sandwiched. When the male screw of the tip bolt 28 and the fastening bolt 21 are screwed together with the joint nut 26 and the circular steel plate 30 and the steel pipe 25 are welded, the reusable underground anchor of the present invention is completed.

図3〜図5の詳細図で各部分の働きを示すが、図3に示す様に円形鋼製板30にはジョイントナット26の面取り部分より0.5mm〜1mmの隙間をあけて回転止めプレート31が溶着されており、鋼管パイプ25と円形鋼製板30も溶着されているので、締め付けボルト21を締め付けると雄ねじ部分がジョイントナット26の5cm〜10cmの雌ねじ部分に螺合して入っていくようになっている。その為、ジョイントナット26と螺合している先端ボルト28は図中の上方向に引っ張られ、引っ張り力をアンカー体である円筒形ゴム27に圧縮力として伝える働きをする。また、平ワッシャ29と鋼管パイプ25及び円形鋼製板30とは円筒形ゴム27の端部と同じ大きさの外周を持っており、円形鋼製板30は先端ボルト28の呼び径より2mmくらい大きく円形開口が空いているので、先端ボルト28は、ほぼ真直ぐに鋼管パイプ25の中に入っていく。   3 to 5 show the function of each part. As shown in FIG. 3, the circular steel plate 30 has a rotation stop plate with a gap of 0.5 mm to 1 mm from the chamfered part of the joint nut 26. 31 is welded, and the steel pipe pipe 25 and the circular steel plate 30 are also welded. Therefore, when the tightening bolt 21 is tightened, the male thread portion is screwed into the 5 cm to 10 cm female thread portion of the joint nut 26. It is like that. Therefore, the tip bolt 28 screwed with the joint nut 26 is pulled upward in the figure, and functions to transmit the pulling force to the cylindrical rubber 27 as an anchor body as a compressive force. The flat washer 29, the steel pipe pipe 25, and the circular steel plate 30 have the same outer circumference as the end of the cylindrical rubber 27. The circular steel plate 30 is about 2 mm from the nominal diameter of the tip bolt 28. Since the large circular opening is vacant, the tip bolt 28 enters the steel pipe 25 almost straight.

図4に示すように締め付けボルト21がジョイントナット26の螺合部分の雌ねじ部分に螺合していくとジョイントナット26が固定されていない限りは共廻り現象が発生し、締め付けボルト21とジョイントナット26、先端ボルト28は同じ方向に回転するが、回転止めプレート31でジョイントナット26を挟み込む事により回転運動を起こさず、ジョイントナット26と先端ボルト28は上方向に持ちあがる状態になり、平ワッシャ29と円形鋼製板30に挟まれて圧縮された円筒形ゴム27は球形に変形し、その径が鋼管パイプ25より大きくなることでアンカー体の働きをする。   As shown in FIG. 4, when the tightening bolt 21 is screwed into the female screw portion of the screwed portion of the joint nut 26, a co-rotation phenomenon occurs unless the joint nut 26 is fixed. 26 and the tip bolt 28 rotate in the same direction. However, when the joint nut 26 is sandwiched by the rotation stop plate 31, the joint nut 26 and the tip bolt 28 are lifted upward, and a flat washer. The cylindrical rubber 27 compressed between 29 and the circular steel plate 30 is deformed into a spherical shape, and its diameter becomes larger than that of the steel pipe 25, thereby functioning as an anchor body.

アンカー体が変形した状態になった時、鋼管パイプ25と締め付けボルト21、鋼製プレート23は土中に固定された状態になり、引抜き抵抗を掛けても抜けない状態になる。そこで図5に示す様に鋼製プレート23に配置されたプレート押えボルト22を締め付けると、プレート押えボルト22は、鋼製プレート23に雌ねじが切られているので螺合しながら鋼製プレート23を突き抜けて、例えばプレートや地盤、アスファルトやコンクリートに引抜き抵抗を鋼製プレート23下側に伝える。その時プレート押えボルト22に引抜き抵抗が蓄えられ引っ張り力を溜めておく働きとなる。   When the anchor body is in a deformed state, the steel pipe 25, the fastening bolt 21 and the steel plate 23 are fixed in the soil and cannot be removed even if a pulling resistance is applied. Therefore, as shown in FIG. 5, when the plate retainer bolt 22 arranged on the steel plate 23 is tightened, the plate retainer bolt 22 is screwed into the steel plate 23 while being screwed together because the female plate 23 is internally threaded. The punching resistance is transferred to the lower side of the steel plate 23 through, for example, a plate, ground, asphalt or concrete. At that time, the pulling resistance is stored in the plate presser bolt 22 and the pulling force is accumulated.

円形鋼製板24を鋼管パイプ25に溶着している事により、鋼製プレート23とプレート押えボルト22を無くした状態でも仮囲いの固定に使用する事もできる。   Since the circular steel plate 24 is welded to the steel pipe 25, it can be used for fixing the temporary enclosure even when the steel plate 23 and the plate holding bolt 22 are eliminated.

また、この再利用型土中アンカーの特徴は削孔後に注入固化させるモルタル系や合成樹脂系のアンカー体ではなく、ゴムのアンカー体を使う事で土中にアンカー体やアンカー本体を残す事無く撤去が可能になる事である。   In addition, this reusable underground anchor is not a mortar or synthetic resin anchor that is injected and solidified after drilling, but by using a rubber anchor without leaving the anchor or anchor body in the soil. The removal is possible.

上記再利用型土中アンカーを用いた仮囲いの補強の一例を補強H鋼架台と組み合わせた状態で図6〜図13を用いて説明する。図6に示す様に、鉛直方向H鋼材1と水平方向H鋼材2をL型に組み合わせた部材を、鉛直部継ぎH鋼材3と水平部継ぎH鋼材4にスチフナー6と添接板7で補強し継ぎ合わせて組立て、水平方向H鋼材2に溶着された鋼製プレート5を地盤に押し付ける事で、従来の仮囲いの弱点である鉛直方向単管パイプの撓みの発生を鉛直方向H鋼材1で補強する。   An example of reinforcement of the temporary enclosure using the reusable underground anchor will be described with reference to FIGS. As shown in FIG. 6, a member in which the vertical direction H steel material 1 and the horizontal direction H steel material 2 are combined in an L shape is reinforced to the vertical joint H steel material 3 and the horizontal joint H steel material 4 with a stiffener 6 and an attachment plate 7. Assembling and joining, the steel plate 5 welded to the horizontal H steel material 2 is pressed against the ground, so that the vertical single pipe pipe is bent by the vertical H steel material 1 which is a weak point of the conventional temporary enclosure. Reinforce.

まず補強H鋼架台の長さと幅に相当する範囲を図7に示す様に設計地盤より10cm程度バックホウで全体に掘り下げ、フラットな地盤18を整正する。この時掘り下げた土は、後で水平方向H鋼材2と水平部継ぎH鋼材4を地中に埋める為の埋め戻し土17として再利用するので邪魔にならない場所に仮置きしておく。   First, as shown in FIG. 7, a range corresponding to the length and width of the reinforced H steel frame is dug down with a backhoe about 10 cm from the design ground, and the flat ground 18 is adjusted. The soil dug down at this time will be reused as backfill soil 17 for burying the horizontal H steel material 2 and the horizontal joint H steel material 4 in the ground later, so it is temporarily placed in a place where it does not get in the way.

水平方向H鋼材2と水平部継ぎH鋼材4を地中に埋めるのは、地表に出ていると歩行者通路として使用する場合は躓いて転倒する恐れがある上、車両搬入などの妨げとなる為である。しかし、部分的に埋め戻さず残して資材置き場にするならば、水平方向H鋼材2とフラットな地盤18とに隙間が生まれ、ワイヤーなどを通すことが容易になるので、作業効率のアップにつながる。   The horizontal H steel material 2 and the horizontal joint H steel material 4 are buried in the ground, and when used as a pedestrian passage when on the ground surface, there is a risk of rolling and overturning and hindering vehicle entry and the like. Because of that. However, if the material storage site is left without being partially refilled, a gap is created between the horizontal H steel material 2 and the flat ground 18, and it becomes easy to pass wires and the like, leading to an increase in work efficiency. .

フラットに整正された地盤18に水平方向H鋼材2の鋼製プレート5が地盤18に接する形で1m〜2mピッチで設置し、図8に示す様に水平部継ぎH鋼材4の端部を水平方向H鋼材2の側面にあるスチフナー6の端部に当接し、添接板7を添わせてボルトナット8をボルト穴に通して締めつけ固定する。   The steel plate 5 of the horizontal direction H steel material 2 is installed on the ground 18 which has been flattened in contact with the ground 18 at a pitch of 1 to 2 m, and the end of the horizontal joint H steel material 4 is attached as shown in FIG. It abuts against the end of the stiffener 6 on the side surface of the horizontal H steel material 2, attaches the attachment plate 7, and tightens and fixes the bolt nut 8 through the bolt hole.

地面に接するフランジ部分に鋼製プレートが溶着された水平方向H鋼材2に鉛直方向H鋼材1を加工してL型に組み合わせた後、図9に示す様に鉛直方向H鋼材1に鉛直部継ぎH鋼材3の端部を鉛直方向H鋼材1の側面とスチフナー6の端部に当接し、添接板7を添わせてボルトナット8をボルト穴に通して締めつけ固定する。図10に示す様に順次鉛直方向H鋼材1と鉛直部継ぎH鋼材3を固定する事で水平方向H鋼材2とも一体化され全体での剛性が上がる。   After processing the vertical H steel material 1 on the horizontal H steel material 2 in which the steel plate is welded to the flange part in contact with the ground and combining it with the L shape, as shown in FIG. The end portion of the H steel material 3 is brought into contact with the side surface of the vertical H steel material 1 and the end portion of the stiffener 6, the attaching plate 7 is attached, and the bolt nut 8 is passed through the bolt hole and fixed. As shown in FIG. 10, the vertical H steel material 1 and the vertical joint H steel material 3 are sequentially fixed to be integrated with the horizontal H steel material 2 to increase the overall rigidity.

L型にH鋼架台を組み立て一体化するのは、図11に示す様に万能鋼板14を用いた仮囲いの鉛直方向単管パイプ10は通常Φ48.6mmの径であるが、長さが3.0mになると強風時には撓みが発生する。それは、水平方向単管パイプ11に取り付けられた万能鋼板14に強風が当たり、風荷重によって撓むためである。しかし、鉛直方向H鋼材1が鉛直方向単管パイプ10に沿う形で補強するため撓みの発生を抑えることができる。また、H鋼架台を一体化する事により全体の剛性で風荷重を受けることができるので倒れ難くもなる。   As shown in FIG. 11, the vertical steel pipe 10 of the temporary enclosure using the universal steel plate 14 has a diameter of Φ48.6 mm. When it is 3.0 m, bending occurs in a strong wind. This is because strong wind hits the universal steel plate 14 attached to the horizontal single pipe 11 and bends by wind load. However, since the vertical H steel material 1 reinforces along the vertical single pipe 10, the occurrence of bending can be suppressed. Further, by integrating the H steel frame, it is possible to receive a wind load with the whole rigidity, so that it is difficult to fall down.

また、H鋼架台で撓みがなくなり全体の剛性が上がった事で、補強の為必要だったヤラズ115や根がらみ117の必要性が無くなり、現場内にできていた1.5m〜2.0mのデッドゾーンが解消されて利用可能なスペースが生まれる。   In addition, since the H steel frame is not bent and the overall rigidity is increased, the need for Yaraz 115 and rooting 117, which was necessary for reinforcement, is eliminated, and 1.5m to 2.0m that was made in the field. The dead zone is eliminated and a usable space is created.

加工を施した補強H鋼架台が組立て終わったら、図11に示す様に鋼製プレート5の内側穴部分の土を所定の深さまで削孔し、削孔穴の土を出し、先端ボルト28が土中の下側にセットされる形で土中アンカー9を水平方向H鋼材2下側の鋼製プレート5と土中アンカー9上側の鋼製プレート23が当たるまで深く差し込む。   When the processed reinforced H steel frame is assembled, as shown in FIG. 11, the soil in the inner hole portion of the steel plate 5 is drilled to a predetermined depth, the soil in the drill hole is taken out, and the tip bolt 28 is The underground anchor 9 is inserted deeply in the form of being set below the soil until the steel plate 5 below the horizontal H steel material 2 and the steel plate 23 above the soil anchor 9 contact each other.

図12に示す様に再利用型土中アンカー9の上側にある締め付けボルト21をインパクトレンチ等で締め付けると、ジョイントナット26が上に移動する事で土中の円筒形ゴム27に圧縮が加わり、削孔穴の内部で先端部の円筒形ゴム27が球形に変形し、アンカー体となり孔壁を圧迫し、再利用型土中アンカー9の鋼管パイプ25径より大きくなる。   As shown in FIG. 12, when the fastening bolt 21 on the upper side of the reusable underground anchor 9 is tightened with an impact wrench or the like, the joint nut 26 moves upward, so that the cylindrical rubber 27 in the soil is compressed, The cylindrical rubber 27 at the tip end is deformed into a spherical shape inside the drilled hole, becomes an anchor body, presses the hole wall, and becomes larger than the diameter of the steel pipe pipe 25 of the reusable underground anchor 9.

このアンカー体となる円筒形ゴム27が圧縮により球形に変形する事によって、周辺摩擦抵抗に引抜き抵抗が増し加わり打込み単管パイプ116より抜け難くなる。   When the cylindrical rubber 27 serving as the anchor body is deformed into a spherical shape by compression, the pulling resistance is added to the peripheral friction resistance and it is difficult to pull out from the single pipe pipe 116 to be driven.

また再利用型土中アンカー9のアンカー体はゴムである為、締め付けボルト21を緩めると球形に変形していた円筒形ゴム27は元に戻り、引抜き抵抗が失われて打込み単管パイプ116と同じように抜く事が出来るので土中にアンカー体などを残すことなく撤去することができる。   Further, since the anchor body of the reusable underground anchor 9 is rubber, when the fastening bolt 21 is loosened, the cylindrical rubber 27 which has been deformed into a spherical shape returns to its original shape, and the drawing resistance is lost and the single pipe pipe 116 is driven. Since it can be pulled out in the same way, it can be removed without leaving an anchor in the soil.

地盤に固定された再利用型土中アンカー9は、再利用型土中アンカー9上側の鋼製プレート23に取り付けてあるプレート押えボルト22を適度に締めつける事で、再利用型土中アンカー9による摩擦抵抗と引抜き抵抗を鋼製プレート5に伝え、鋼製プレート5が地盤18を押え密着するようになり引っ張り力を溜めておく部分と同じ働きをするようになる。   The reusable underground anchor 9 fixed to the ground is formed by the reusable underground anchor 9 by appropriately tightening the plate holding bolt 22 attached to the steel plate 23 on the upper side of the reusable underground anchor 9. The frictional resistance and the pulling resistance are transmitted to the steel plate 5 so that the steel plate 5 presses the ground 18 and comes into close contact with each other, and the same function as the portion for storing the tensile force is obtained.

またプレート押えボルト22は締め付けボルト21を緩め撤去する時に、もっと締めつけて鋼製プレート5を押えると、再利用型土中アンカー9が土との密着から解放され土中から浮き上がるので撤去も容易になる。   Further, when the plate retainer bolt 22 is loosened and removed, when the steel plate 5 is further tightened and the steel plate 5 is retained, the reusable underground anchor 9 is released from close contact with the soil and lifts up from the soil, so that the removal is easy. Become.

前記図11で示した様に万能鋼板14を用いた仮囲いと補強H鋼架台の長さと幅に相当する範囲を設計地盤より10cm程度掘り下げた部分に、バックホウで掘り下げた時に発生した土を埋め戻し土17として転用し、最初に掘り下げる前の高さまで埋め戻し、フラットな状態の元の現場地盤に戻す。   As shown in FIG. 11 above, the soil generated when the backhoe is dug in the portion of the temporary ground using the universal steel plate 14 and the portion corresponding to the length and width of the reinforced H steel frame about 10 cm from the design ground. It is diverted as the backfill soil 17 and backfilled to the height before digging first, and returned to the original site ground in a flat state.

図13に示す様に鉛直方向H鋼材1にキャッチクランプ13を取付け、鉛直方向単管パイプ10を鉛直方向H鋼材1に添わせて取付け、鉛直方向単管パイプ10に水平方向単管パイプ11を直交クランプ12で緊結する。緊結された水平方向の単管パイプ11に万能鋼板14を取付けて再利用型土中アンカー9を用いた仮囲いの補強が完成する。   As shown in FIG. 13, the catch clamp 13 is attached to the vertical H steel material 1, the vertical single pipe 10 is attached along the vertical H steel material 1, and the horizontal single pipe 11 is attached to the vertical single pipe 10. Tightened with the orthogonal clamp 12. The universal steel plate 14 is attached to the tightly connected horizontal single pipe 11 to complete the reinforcement of the temporary enclosure using the reusable underground anchor 9.

再利用型土中アンカー9は従来の万能鋼板仮囲いの打込み単管パイプ116の代わりに使用する事で、従来の課題である強風時に抜けて万能鋼版仮囲いが道路側に倒壊してしまうのを防ぎ、単管パイプ25と締め付けボルト21、ジョイントナット26の部分の長さ調整を行う事で地盤のN値に合わせた深度でのアンカー体造成を可能とする。   The reusable underground anchor 9 is used in place of the conventional single-piece pipe 116 for the universal steel plate temporary enclosure, and the universal steel plate temporary enclosure collapses to the road side due to the conventional problem of strong wind. By adjusting the lengths of the single pipe 25, the fastening bolt 21 and the joint nut 26, an anchor body can be formed at a depth corresponding to the N value of the ground.

また、従来のアスファルト道路での固定アンカーではアスファルト層だけに打ち込んでいたので、コンクリートに打込むより引抜き抵抗に対する信頼性は劣ったが、本発明品再利用型土中アンカー9は下層路盤まで打ち込こんで固定する事が出来るので信頼性が上がる。   In addition, conventional anchors on asphalt roads are driven only into the asphalt layer, so the reliability against pulling resistance is inferior to that of concrete, but the reusable underground anchor 9 of the present invention is driven down to the subbase. Reliability can be improved because it can be locked in.

なお、請求項1の発明の土中アンカーと請求項2の発明の土中アンカーは、請求項3の発明の再利用型土中アンカーに置き換えることもできる。   The underground anchor of the invention of claim 1 and the underground anchor of the invention of claim 2 can be replaced with the reusable underground anchor of the invention of claim 3.

1 鉛直方向H鋼材
2 水平方向H鋼材
3 鉛直部継ぎH鋼材
4 水平部継ぎH鋼材
5 鋼製プレート
6 スチフナー
7 添接板
8 ボルトナット
9 再利用型土中アンカー
10 鉛直方向単管パイプ
11 水平方向単管パイプ
12 直交クランプ
13 キャッチクランプ
14 万能鋼板
15 境界石
16 歩道
17 埋め戻し土
18 地盤
21 締め付けボルト
22 プレート押えボルト
23 鋼製プレート
24 円形鋼製板
25 鋼管パイプ
26 ジョイントナット
27 円筒形ゴム
28 先端ボルト
29 平ワッシャ
30 円形鋼製板
31 回転止めプレート
110 鉛直方向単管パイプ
111 水平方向単管パイプ
112 直交クランプ
113 自在クランプ
114 万能鋼板
115 ヤラズ
116 打込み単管パイプ
117 根がらみ
DESCRIPTION OF SYMBOLS 1 Vertical direction H steel material 2 Horizontal direction H steel material 3 Vertical joint H steel material 4 Horizontal joint H steel material 5 Steel plate 6 Stiffener 7 Connecting plate 8 Bolt nut 9 Reusable underground anchor 10 Vertical single pipe 11 Horizontal Directional single pipe 12 Orthogonal clamp 13 Catch clamp 14 Universal steel plate 15 Boundary stone 16 Sidewalk 17 Backfill soil 18 Ground 21 Tightening bolt 22 Plate retainer bolt 23 Steel plate 24 Round steel plate 25 Steel pipe pipe 26 Joint nut 27 Cylindrical rubber 28 End bolt 29 Flat washer 30 Round steel plate 31 Anti-rotation plate 110 Vertical single pipe 111 Horizontal single pipe 112 Orthogonal clamp 113 Universal clamp 114 Universal steel plate 115 Yarazu 116 Driving single pipe 117

請求項1の発明では、仮囲いを土中に埋設後、一部分の外径を外部から変化させることが可能である土中アンカーで固定する様にした。
In the invention of claim 1, after the temporary enclosure is buried in the soil, the outer diameter of a part of the temporary enclosure is fixed with a soil anchor that can be changed from the outside .

請求項2の発明では、補強H鋼架台の水平方向H鋼材と鉛直方向H鋼材をL型に構成し、前記水平方向H鋼材を土中に埋め、土中に埋設後、一部分の外径を外部から変化させることが可能である土中アンカーで固定し、H鋼材に仮囲いを固定する様にした。
In the invention of claim 2, the horizontal direction H steel material and the vertical direction H steel material of the reinforced H steel frame are configured in an L shape, and the horizontal direction H steel material is embedded in the soil, embedded in the soil, and a part of the outer diameter Is fixed with a soil anchor that can be changed from the outside , and a temporary enclosure is fixed to the H steel material.

請求項1の発明によれば、土中に埋設後、一部分の外径を外部から変化させることが可能である土中アンカーを用いて工事現場の外周を囲う万能鋼板仮囲いを設けることができ、簡単に抜ける恐れが無く仮囲いを固定できる。
According to the invention of claim 1, after embedding in the soil , a universal steel plate temporary enclosure can be provided that surrounds the outer periphery of the construction site using a soil anchor that can change the outer diameter of a part from the outside. The temporary enclosure can be fixed without the risk of easy removal.

本来ヤラズを打込み単管パイプに繋ぐのは風荷重等により万能鋼板仮囲いが道路側に倒れないようにする補強の意味であるが、土中に埋設後、一部分の外径を外部から変化させることが可能である土中アンカーを使用する事により周辺摩擦抵抗に引抜き抵抗が増し加わり、万能鋼板仮囲いも道路側に倒れ難くなる。
Originally, Yaraz is driven and connected to the single pipe pipe is meant to reinforce the universal steel plate temporary fence so that it does not fall down to the road side due to wind loads, etc., but after burying it in the soil, the outer diameter of a part is changed from the outside By using an anchor in the ground, the pulling resistance is added to the peripheral friction resistance, and the universal steel plate temporary enclosure is not easily fallen to the road side.

土中に埋設後、一部分の外径を外部から変化させることが可能である土中アンカーと補強H鋼架台を組み合わせて万能鋼板仮囲いを組み立てる事が出来る為、歩道や公道にはみ出す事がなくなり第三者災害やクレームも減少する。また、資材を何度も移動して、無駄に時間と労力を浪費すること無く資材置き場を作るスペースが確保でき、安全通路も確保できるので通路の無いところを通行していた作業員の危険も減少する。依って、現場内外の危険要素と無駄な時間と労力の浪費が減少し、通行人や近隣住民からのクレームの発生も減少する事で工事コストも削減される。
After embedding in the soil, a universal steel plate temporary enclosure can be assembled by combining a soil anchor and a reinforced H steel frame that can change the outer diameter of a part from the outside, so that it can protrude on the sidewalks and public roads Loss of third party disasters and complaints. In addition, it is possible to secure a space to make a material storage place without wasting time and labor by moving materials many times, and a safety passage can be secured, so there is a danger of workers who have passed there without a passage. Decrease. Therefore, risk factors inside and outside the site, wasted time and waste of labor are reduced, and construction costs are reduced by reducing the occurrence of complaints from passersby and neighboring residents.

請求項1の発明では、仮囲いを鋼管パイプの両端部に、中心部に円形開口がある円形鋼製板が溶着され、第一の端部側に締め付けボルトを有し、第二の端部側にアンカー体を形成するための円筒形ゴムと前記円筒形ゴムに貫入する先端ボルトを備え、前記鋼管パイプ内部で第一の端部側の前記締め付けボルトと第二の端部側の前記先端ボルトがジョイントナットに螺合し、前記鋼管パイプ内部にジョイントナット回転止めプレートを設け、前記ジョイントナットが回転せず上下運動だけになり、上記締め付けボルトを締める事により、上記円筒形ゴムが球形に変形してアンカー体を形成し、上記締め付けボルトを緩める事で変形していた上記円筒形ゴムが元の形に戻るよう構成されている事を特徴とする土中アンカーで固定する様にした。
In the invention of claim 1, a circular steel plate having a circular opening at the center is welded to both ends of the steel pipe and the temporary enclosure is welded, and has a fastening bolt on the first end side, and the second end A cylindrical rubber for forming an anchor body on the side and a tip bolt penetrating into the cylindrical rubber; the fastening bolt on the first end side and the tip on the second end side inside the steel pipe pipe The bolt is screwed into the joint nut, a joint nut rotation stop plate is provided inside the steel pipe pipe, the joint nut does not rotate and only moves up and down, and the cylindrical rubber becomes spherical by tightening the tightening bolt. An anchor body is formed by deformation, and the cylindrical rubber that has been deformed by loosening the tightening bolt is returned to its original shape, and is fixed by a soil anchor.

請求項2の発明では、補強H鋼架台の水平方向H鋼材と鉛直方向H鋼材をL型に構成し、前記水平方向H鋼材を土中に埋め、鋼管パイプの両端部に、中心部に円形開口がある円形鋼製板が溶着され、第一の端部側に締め付けボルトを有し、第二の端部側にアンカー体を形成するための円筒形ゴムと前記円筒形ゴムに貫入する先端ボルトを備え、前記鋼管パイプ内部で第一の端部側の前記締め付けボルトと第二の端部側の前記先端ボルトがジョイントナットに螺合し、前記鋼管パイプ内部にジョイントナット回転止めプレートを設け、前記ジョイントナットが回転せず上下運動だけになり、上記締め付けボルトを締める事により、上記円筒形ゴムが球形に変形してアンカー体を形成し、上記締め付けボルトを緩める事で変形していた上記円筒形ゴムが元の形に戻るよう構成されている事を特徴とする土中アンカーで固定し、H鋼材に仮囲いを固定する様にした。
In the invention of claim 2, the horizontal direction H steel material and the vertical direction H steel material of the reinforced H steel frame are configured in an L shape, the horizontal direction H steel material is buried in the soil, and at both ends of the steel pipe pipe, A circular steel plate having a circular opening is welded, has a fastening bolt on the first end side, and penetrates into the cylindrical rubber and the cylindrical rubber for forming an anchor body on the second end side Provided with a front end bolt, wherein the fastening bolt on the first end side and the front end bolt on the second end side are screwed into a joint nut inside the steel pipe pipe, and a joint nut rotation stop plate is provided inside the steel pipe pipe. Provided, the joint nut does not rotate but only moves up and down, and by tightening the tightening bolt, the cylindrical rubber is deformed into a spherical shape to form an anchor body and is deformed by loosening the tightening bolt Cylindrical shape Arm is fixed in the soil anchor, characterized in that is configured to return to its original shape, was set to secure the temporary enclosure to H steel.

請求項1の発明によれば、鋼管パイプの両端部に、中心部に円形開口がある円形鋼製板が溶着され、第一の端部側に締め付けボルトを有し、第二の端部側にアンカー体を形成するための円筒形ゴムと前記円筒形ゴムに貫入する先端ボルトを備え、前記鋼管パイプ内部で第一の端部側の前記締め付けボルトと第二の端部側の前記先端ボルトがジョイントナットに螺合し、前記鋼管パイプ内部にジョイントナット回転止めプレートを設け、前記ジョイントナットが回転せず上下運動だけになり、上記締め付けボルトを締める事により、上記円筒形ゴムが球形に変形してアンカー体を形成し、上記締め付けボルトを緩める事で変形していた上記円筒形ゴムが元の形に戻るよう構成されている事を特徴とする土中アンカーを用いて工事現場の外周を囲う万能鋼板仮囲いを設けることができ、簡単に抜ける恐れが無く仮囲いを固定できる。
According to the invention of claim 1, a circular steel plate having a circular opening in the center is welded to both ends of the steel pipe pipe, the fastening bolt is provided on the first end side, and the second end side A cylindrical rubber for forming an anchor body and a tip bolt penetrating into the cylindrical rubber, and the fastening bolt on the first end side and the tip bolt on the second end side inside the steel pipe Screwed into the joint nut, and provided with a joint nut rotation stop plate inside the steel pipe pipe, the joint nut does not rotate and only moves up and down, and by tightening the tightening bolt, the cylindrical rubber is deformed into a spherical shape An anchor body is formed, and the cylindrical rubber that has been deformed by loosening the tightening bolt is returned to its original shape. Surrounding It is possible to provide a universal steel plate temporary enclosure, easy to escape fear can be fixed without temporary enclosure.

本来ヤラズを打込み単管パイプに繋ぐのは風荷重等により万能鋼板仮囲いが道路側に倒れないようにする補強の意味であるが、鋼管パイプの両端部に、中心部に円形開口がある円形鋼製板が溶着され、第一の端部側に締め付けボルトを有し、第二の端部側にアンカー体を形成するための円筒形ゴムと前記円筒形ゴムに貫入する先端ボルトを備え、前記鋼管パイプ内部で第一の端部側の前記締め付けボルトと第二の端部側の前記先端ボルトがジョイントナットに螺合し、前記鋼管パイプ内部にジョイントナット回転止めプレートを設け、前記ジョイントナットが回転せず上下運動だけになり、上記締め付けボルトを締める事により、上記円筒形ゴムが球形に変形してアンカー体を形成し、上記締め付けボルトを緩める事で変形していた上記円筒形ゴムが元の形に戻るよう構成されている事を特徴とする土中アンカーを使用する事により周辺摩擦抵抗に引抜き抵抗が増し加わり、万能鋼板仮囲いも道路側に倒れ難くなる。
Originally, Yaraz is driven and connected to a single pipe pipe in order to prevent the universal steel plate temporary enclosure from falling to the road side due to wind loads, etc. , but a circular opening with a circular opening in the center at both ends of the steel pipe pipe A steel plate is welded, a fastening bolt is provided on the first end side, a cylindrical rubber for forming an anchor body on the second end side, and a tip bolt that penetrates the cylindrical rubber, The fastening bolt on the first end side and the tip bolt on the second end side are screwed into a joint nut inside the steel pipe, and a joint nut rotation stop plate is provided inside the steel pipe, and the joint nut The cylinder is only rotated up and down, and by tightening the tightening bolt, the cylindrical rubber is deformed into a spherical shape to form an anchor body, and the cylinder is deformed by loosening the tightening bolt. Rubber is exerted pulling resistance increases around the frictional resistance by using a soil anchor, characterized in that is configured to return to its original shape, universal steel temporary enclosure also hardly fall on the road side.

鋼管パイプの両端部に、中心部に円形開口がある円形鋼製板が溶着され、第一の端部に締め付けボルトを有し、第二の端部にアンカー体を形成するための円筒形ゴムと前記円筒形ゴムに貫入する先端ボルトを備え、前記鋼管パイプ内部で第一の端部側の前記締め付けボルトと第二の端部側の前記先端ボルトがジョイントナットに螺合し、前記鋼管パイプ内部にジョイントナット回転止めプレートを設け、前記ジョイントナットが回転せず上下運動だけになり、上記締め付けボルトを締める事により、上記円筒形ゴムが球形に変形してアンカー体を形成し、上記締め付けボルトを緩める事で変形していた上記円筒形ゴムが元の形に戻るよう構成されている事を特徴とする土中アンカーと補強H鋼架台を組み合わせて万能鋼板仮囲いを組み立てる事が出来る為、歩道や公道にはみ出す事がなくなり第三者災害やクレームも減少する。また、資材を何度も移動して、無駄に時間と労力を浪費すること無く資材置き場を作るスペースが確保でき、安全通路も確保できるので通路の無いところを通行していた作業員の危険も減少する。依って、現場内外の危険要素と無駄な時間と労力の浪費が減少し、通行人や近隣住民からのクレームの発生も減少する事で工事コストも削減される。
Cylindrical rubber for welding a circular steel plate with a circular opening at the center to both ends of the steel pipe, having a fastening bolt at the first end, and forming an anchor body at the second end And a tip bolt penetrating into the cylindrical rubber, and the fastening bolt on the first end side and the tip bolt on the second end side are screwed into a joint nut inside the steel pipe pipe, and the steel pipe pipe A joint nut rotation stop plate is provided inside, the joint nut does not rotate and only moves up and down, and by tightening the tightening bolt, the cylindrical rubber is deformed into a spherical shape to form an anchor body, and the tightening bolt assembling a universal steel temporary enclosure that combines the soil anchor the reinforcing steel H pedestal, characterized in that the cylindrical rubber which has been modified in that loosening is configured to return to its original shape Can order, it is also reduced third-party disaster and claims it is no longer possible to protrude into the sidewalk or public roads. In addition, it is possible to secure a space to make a material storage place without wasting time and labor by moving materials many times, and a safety passage can be secured, so there is a danger of workers who have passed there without a passage. Decrease. Therefore, risk factors inside and outside the site, wasted time and waste of labor are reduced, and construction costs are reduced by reducing the occurrence of complaints from passersby and neighboring residents.

Claims (4)

仮囲いを土中アンカーで固定する事を特徴とする仮囲いの固定方法。   A temporary enclosure fixing method characterized by fixing the temporary enclosure with a soil anchor. 補強H鋼架台の水平方向H鋼材と鉛直方向H鋼材をL型に構成し、前記水平方向H鋼材を土中に埋めて土中アンカーで固定し、H鋼材に仮囲いを固定する事を特徴とする仮囲いの固定方法。   The horizontal H steel material and the vertical H steel material of the reinforced H steel frame are configured in an L shape, the horizontal H steel material is buried in the soil and fixed with a soil anchor, and the temporary enclosure is fixed to the H steel material. A method of fixing the temporary enclosure as a feature 鋼管パイプの両端部に、中心部に円形開口がある円形鋼製板が溶着され、第一の端部側に締め付けボルトを有し、第二の端部側にアンカー体となる円筒形ゴムと前記円筒形ゴムに貫入する先端ボルトを備え、前記鋼管パイプ内部で第一の端部側の前記締め付けボルトと第二の端部側の前記先端ボルトがジョイントナットに螺合し、前記鋼管パイプ内部にジョイントナット回転止めプレートを設け、前記ジョイントナットが回転せず上下運動だけになることを特徴とする再利用型土中アンカー。   A cylindrical steel plate having a circular opening in the center portion is welded to both ends of the steel pipe, a fastening bolt is provided on the first end side, and a cylindrical rubber serving as an anchor body on the second end side; A tip bolt penetrating into the cylindrical rubber, wherein the fastening bolt on the first end side and the tip bolt on the second end side are screwed into a joint nut inside the steel pipe pipe, A reusable underground anchor characterized in that a joint nut rotation stop plate is provided on the joint nut, and the joint nut does not rotate but only moves up and down. 第一の端部にプレートとプレート押えボルトと締め付けボルトを有することを特徴とする請求項3記載の再利用型土中アンカー。   The reusable underground anchor according to claim 3, further comprising a plate, a plate holding bolt, and a fastening bolt at the first end.
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