JP2021183786A - Upright method for leg members of arch center and upright assist device - Google Patents

Upright method for leg members of arch center and upright assist device Download PDF

Info

Publication number
JP2021183786A
JP2021183786A JP2020089800A JP2020089800A JP2021183786A JP 2021183786 A JP2021183786 A JP 2021183786A JP 2020089800 A JP2020089800 A JP 2020089800A JP 2020089800 A JP2020089800 A JP 2020089800A JP 2021183786 A JP2021183786 A JP 2021183786A
Authority
JP
Japan
Prior art keywords
leg member
upright
arm
jack
leg
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2020089800A
Other languages
Japanese (ja)
Other versions
JP7337386B2 (en
Inventor
実 土田
Minoru Tsuchida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ITO KK
Original Assignee
ITO KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ITO KK filed Critical ITO KK
Priority to JP2020089800A priority Critical patent/JP7337386B2/en
Publication of JP2021183786A publication Critical patent/JP2021183786A/en
Application granted granted Critical
Publication of JP7337386B2 publication Critical patent/JP7337386B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Lining And Supports For Tunnels (AREA)

Abstract

To assemble an arch center 30 with high precision by using a simple configuration.SOLUTION: An angle of a leg member 32 is adjusted by attaching an arm 12 to the lower side surface of the leg member 32 of an arch center 30, supporting a jack 17 on the arm 12, grounding a grounding plate 19 of the jack 17, and adjusting the height. The arm 12 having the jack 17 is attached to both side surfaces of the leg member 32. Then, the lower surface of the leg member 32 is brought into contact with the upper surface of a rail 102 in a bottom plate 101 of a tunnel. A base end portion of the arm 12 is attached with a bolt to a bolt insertion hole of the leg member 32.SELECTED DRAWING: Figure 3

Description

本発明は、トンネルの覆工コンクリートの成形に用いられるコンクリート型枠装置としてのセントルにおいて、そのセントルの脚部材の直立方法および直立補助装置に関するものである。 The present invention relates to an upright method and an upright assisting device for a leg member of a centle as a concrete formwork device used for forming lining concrete of a tunnel.

特許文献１には、トンネル内においてセントルを組み立てるための方法が開示されている。この方法においては、トンネルの底面にセントルの左右両側の脚部材が立てられた後に、その両側の脚部材の上端間に梁材が架設されて、セントルの橋脚が構築される。そして、この橋脚上にコンクリート成形面を構成するフォームなどが組み付けられ、その後、フォームなどを支持した橋脚がジャッキによってコンクリート成形位置まで上昇されて、フォームとトンネル内周面との間にコンクリートが充填されて、覆工コンクリートが成形される。 Patent Document 1 discloses a method for assembling a centle in a tunnel. In this method, after the leg members on both the left and right sides of the center are erected on the bottom surface of the tunnel, a beam member is erected between the upper ends of the leg members on both sides to construct the pier of the center. Then, the foam that constitutes the concrete forming surface is assembled on this pier, and then the pier that supports the foam is raised to the concrete forming position by the jack, and concrete is filled between the foam and the inner peripheral surface of the tunnel. The lining concrete is formed.

この場合、脚部材の上端間に梁材を架設する際に、作業の容易性などのために、脚部材を直立した安定状態にする必要がある。加えて、脚部材の上端間に梁材を正確かつ適切に架設するために、脚部材を鉛直線に沿って正確に立てる必要がある。脚部材が鉛直線に沿って立てられない場合は、例えば、脚部材と梁材とを固定するボルトのための脚部材および梁材のボルト孔が合致しないために、脚部材と梁材とを連結することが困難になるおそれがある。 In this case, when the beam member is erected between the upper ends of the leg members, it is necessary to keep the leg members in an upright and stable state for ease of work and the like. In addition, in order to accurately and appropriately erection the beam material between the upper ends of the leg members, it is necessary to erect the leg members accurately along the vertical line. If the leg member cannot be erected along the vertical line, for example, the leg member and the beam member may be separated because the bolt holes of the leg member and the beam member for fixing the leg member and the beam member do not match. It may be difficult to connect.

特開２００５−２８２０９６号公報Japanese Unexamined Patent Publication No. 2005-282096

ところで、従来は、脚部材を直立させるため、その脚部材に対して複数本の単管を結束材などを用いて傾斜状態となるように括り付けて、その単管を下端において接地させて地面に立て掛けることにより、単管によって脚部材を直立状態に支持するようにしていた。この方法においては、単管が地面上を滑るようにして移動しやすく、また、単管と脚部材との相互角度など位置関係が変化しやすく、このように変化したりすれば、脚部材の直立角度を正確に保つことができない。従って、このような状態では、梁材の架設作業に困難をともなうばかりでなく、セントルを高精度に組み立て得ない問題がある。しかも、単管を脚部材に結束することは、手間がかかるものであった。 By the way, conventionally, in order to make a leg member stand upright, a plurality of single pipes are tied to the leg member so as to be in an inclined state by using a binding material or the like, and the single pipe is grounded at the lower end to be grounded. By leaning against it, the leg members were supported upright by a single pipe. In this method, the single tube slides on the ground and is easy to move, and the positional relationship such as the mutual angle between the single tube and the leg member is easy to change. The upright angle cannot be maintained accurately. Therefore, in such a state, not only the erection work of the beam material is difficult, but also there is a problem that the centre cannot be assembled with high accuracy. Moreover, bundling the single tube to the leg member is troublesome.

本発明の目的は、簡単な構成を利用することにより、セントルを高精度に組み立てることができるセントルの脚部材の直立方法および直立補助装置を提供することにある。 An object of the present invention is to provide an upright method and an upright assist device for a leg member of a centle, which can be assembled with high accuracy by utilizing a simple configuration.

上記の目的を達成するために、本発明のセントルの脚部材の直立方法においては、セントルの脚部材の下部側面にアームを取り付けるとともに、そのアームにジャッキを支持し、そのジャッキを接地させて、高さ調節することにより、前記脚部材の角度を調節することを特徴とする。 In order to achieve the above object, in the method of erecting the leg member of the center of the present invention, an arm is attached to the lower side surface of the leg member of the center, a jack is supported on the arm, and the jack is grounded. It is characterized in that the angle of the leg member is adjusted by adjusting the height.

また、本発明セントルの脚部材の直立補助装置においては、基端部においてセントルの脚部材の下部側面に取付可能にしたアームと、そのアームの先端部に設けられ、下端において接地可能にしたジャッキとを備えたことを特徴とする。 Further, in the upright assist device for the leg member of the centre of the present invention, an arm that can be attached to the lower side surface of the leg member of the centle at the base end and a jack that is provided at the tip of the arm and can be grounded at the lower end. It is characterized by having and.

従って、セントルの脚部材の下部側面にアームを取り付けるとともに、ジャッキの上下位置を調節して、そのジャッキを接地させれば、脚部材を鉛直線に沿って直立させることができる。そして、その直立状態では、単管を用いた場合とは異なり、脚部材を鉛直線上において安定状態に維持できる。従って、脚部材上に対する梁材の架設を容易かつ正確に行うことができ、ひいては、セントルを高精度に組み立てることができる。 Therefore, if the arm is attached to the lower side surface of the leg member of the center and the vertical position of the jack is adjusted so that the jack is grounded, the leg member can be made to stand upright along the vertical line. Then, in the upright state, the leg member can be maintained in a stable state on the vertical line, unlike the case where a single tube is used. Therefore, the beam member can be easily and accurately erected on the leg member, and the centle can be assembled with high accuracy.

本発明によれば、簡単な構成を利用することにより、セントルを高精度に組み立てることができるという効果を有する。 According to the present invention, there is an effect that the centle can be assembled with high accuracy by using a simple configuration.

セントルの正面を示すトンネルの断面図。Sectional view of the tunnel showing the front of the center. 脚部材の直立補助装置を使用した状態を示すトンネルの断面図。Sectional drawing of the tunnel which shows the state which used the upright assist device of a leg member. 脚部材の直立補助装置を使用した状態を示す橋脚の斜視図。A perspective view of a pier showing a state in which an upright assist device for a leg member is used. 直立補助装置の使用状態を示す一部斜視図。A partial perspective view showing the usage state of the upright assist device. 直立補助装置の斜視図。Perspective view of the upright assist device. 直立補助装置の分解斜視図。An exploded perspective view of the upright assist device.

本発明を具体化した実施形態を図面に従って説明する。
はじめに、セントル３０の脚部材の直立補助装置１１の構成について説明する。
図４〜図６に示すように、直立補助装置１１は、三角形状の板材よりなるアーム１２を備え、そのアーム１２の基端部には取付板１３が固着されている。取付板１３の４箇所（四隅部）にはボルト挿通孔１４が透設されている。アーム１２の上縁及び下縁において、アーム１２と取付板１３との間には補強板１５，１６が固着されている。アーム１２の先端部には、中心軸線が上下方向に延長された筒部としての挿通筒２３が固着されている。挿通筒２３にはジャッキ１７の雄ネジよりなるジャッキロッド１８が挿通されており、このジャッキロッド１８の下端部には接地板１９が固着されている。挿通筒２３の上下において、ジャッキロッド１８には、そのジャッキロッド１８のネジに螺合する雌ネジ部材２０，２１が設けられており、両雌ネジ部材２０，２１にはハンドル２２が突設されている。 An embodiment embodying the present invention will be described with reference to the drawings.
First, the configuration of the upright assist device 11 for the leg members of the center 30 will be described.
As shown in FIGS. 4 to 6, the upright assisting device 11 includes an arm 12 made of a triangular plate material, and a mounting plate 13 is fixed to a base end portion of the arm 12. Bolt insertion holes 14 are transparently provided at four locations (four corners) of the mounting plate 13. At the upper and lower edges of the arm 12, reinforcing plates 15 and 16 are fixed between the arm 12 and the mounting plate 13. An insertion tube 23 as a tube portion whose central axis is extended in the vertical direction is fixed to the tip end portion of the arm 12. A jack rod 18 made of a male screw of a jack 17 is inserted into the insertion cylinder 23, and a ground plate 19 is fixed to the lower end of the jack rod 18. Above and below the insertion tube 23, the jack rod 18 is provided with female screw members 20 and 21 that are screwed into the screws of the jack rod 18, and handles 22 are provided on both female screw members 20 and 21. ing.

次に、以上のように構成された直立補助装置１１の使用方法について説明する。
図１〜図３に示すように、セントル３０の橋脚３１は、左右一対の脚部材３２と、その脚部材３２の上端間に架設されて、ボルト（図示しない）によって固定される梁材３３とが設けられる。そして、図１に示すように、橋脚３１上に面板４０を有するフォーム４１や足場など（図示しない）が搭載される。図３に示すように、脚部材３２は、トンネル１００の奥行き方向に延長されている。 Next, a method of using the upright assist device 11 configured as described above will be described.
As shown in FIGS. 1 to 3, the pier 31 of the center 30 has a pair of left and right leg members 32 and a beam member 33 erected between the upper ends of the leg members 32 and fixed by bolts (not shown). Is provided. Then, as shown in FIG. 1, a foam 41 having a face plate 40, a scaffold, or the like (not shown) is mounted on the pier 31. As shown in FIG. 3, the leg member 32 is extended in the depth direction of the tunnel 100.

図２に示すように、橋脚３１の組み立てにおいて、左右の両脚部材３２はトンネル１００の底盤１０１上の左右のレール１０２上にそれぞれ設置される。なお、本実施形態において、左右とは、図１及び図２の左右とする。 As shown in FIG. 2, in assembling the pier 31, the left and right leg members 32 are installed on the left and right rails 102 on the bottom 101 of the tunnel 100, respectively. In this embodiment, the left and right are the left and right in FIGS. 1 and 2.

図３に示すように、両脚部材３２の立設に際しては、脚部材３２の下部おける左右両側にそれぞれ複数の直立補助装置１１がトンネル延長方向に相互間隔をおいて支持される。脚部材３２の下部はＨ型鋼３４によって構成されており、直立補助装置１１はＨ型鋼３４の外側面に取り付けられる。その外側面には、その延長方向及び上下方向の複数箇所にボルト挿通孔３６が透設されている。そして、図４に示すように、直立補助装置１１は、その取付板１３のボルト挿通孔１４と、Ｈ型鋼３４のボルト挿通孔３６とを適宜に組み合わせて、ボルト挿通孔１４，３６を通るボルト３７及びナット（図示しない）により、トンネル延長方向の位置及び上下方向の位置，つまり、高さを選択して取り付けられる。 As shown in FIG. 3, when the both leg members 32 are erected, a plurality of upright assisting devices 11 are supported on both the left and right sides of the lower portion of the leg member 32 at intervals in the tunnel extension direction. The lower part of the leg member 32 is composed of the H-shaped steel 34, and the upright assisting device 11 is attached to the outer surface of the H-shaped steel 34. Bolt insertion holes 36 are transparently formed on the outer surface thereof at a plurality of locations in the extension direction and the vertical direction. Then, as shown in FIG. 4, the upright auxiliary device 11 appropriately combines the bolt insertion hole 14 of the mounting plate 13 and the bolt insertion hole 36 of the H-shaped steel 34, and bolts that pass through the bolt insertion holes 14 and 36. A 37 and a nut (not shown) are used to select and attach a position in the tunnel extension direction and a position in the vertical direction, that is, a height.

また、ジャッキ１７のジャッキロッド１８の上下位置が調節されて、その位置において上下の雌ネジ部材２０が挿通筒２３の上下両端部に当接する位置に配置される。このようにすれば、左右のジャッキロッド１８の接地板１９の高さが調節される。従って、脚部材３２がレール１０２上に配置された位置において、その脚部材３２の立設角度を鉛直方向に沿うように調節できる。このため、脚部材３２と梁材３３とのボルト孔がずれることなく、ボルト孔を一致させて脚部材３２と梁材３３とをボルトによって固定することができる。 Further, the vertical position of the jack rod 18 of the jack 17 is adjusted, and the upper and lower female screw members 20 are arranged at the positions where the upper and lower female screw members 20 abut on the upper and lower ends of the insertion cylinder 23. By doing so, the height of the ground plate 19 of the left and right jack rods 18 is adjusted. Therefore, at the position where the leg member 32 is arranged on the rail 102, the standing angle of the leg member 32 can be adjusted so as to be along the vertical direction. Therefore, the leg member 32 and the beam member 33 can be fixed by bolts by matching the bolt holes without shifting the bolt holes between the leg member 32 and the beam member 33.

梁材３３が架設された後は、図１に示すように、その上にフォーム４１などの各種部材が組み付けられる。そして、脚部材３２がレール１０２から上方へ離間するように、セントル３０全体がジャッキ装置（図示しない）によって上昇される。次いで、脚部材３２の下端に対して、下端に車輪３２２有する追加の脚部材３２１がさらに連結され、その車輪３２２がレール１０２上に支持される。直立補助装置１１は、追加の脚部材３２１の取り付けの前後に取り外される。その後、トンネル１００の内周面と、前記フォーム４１との間にコンクリート１０３が打設される。 After the beam member 33 is erected, various members such as foam 41 are assembled on the beam member 33 as shown in FIG. Then, the entire center 30 is raised by a jack device (not shown) so that the leg member 32 is separated upward from the rail 102. Next, an additional leg member 321 having a wheel 322 at the lower end is further connected to the lower end of the leg member 32, and the wheel 322 is supported on the rail 102. The upright assist device 11 is removed before and after the attachment of the additional leg member 321. After that, concrete 103 is placed between the inner peripheral surface of the tunnel 100 and the foam 41.

本実施形態においては、以下の効果がある。
（１）セントル３０の脚部材３２の下部側面の所要位置に適切な数の直立補助装置１１のアーム１２を取り付けるとともに、ジャッキロッド１８の上下位置を調節して、そのジャッキロッド１８の接地板１９を接地させれば、脚部材３２を鉛直線に沿って簡単に直立させることができる。このため、脚部材３２を鉛直線に沿って正確に位置決めでき、ひいては、脚部材３２と梁材３３との位置関係を正確に合わせることができて、セントル３０を高精度に組み立てることができる。 In this embodiment, there are the following effects.
(1) An appropriate number of arms 12 of the upright assisting device 11 are attached to the required positions on the lower side surface of the leg member 32 of the center 30, and the vertical position of the jack rod 18 is adjusted to adjust the vertical position of the jack rod 18 to the ground plate 19 of the jack rod 18. If the leg member 32 is grounded, the leg member 32 can be easily upright along the vertical line. Therefore, the leg member 32 can be accurately positioned along the vertical line, and the positional relationship between the leg member 32 and the beam member 33 can be accurately matched, so that the centre 30 can be assembled with high accuracy.

（２）脚部材３２を直立させるために、単管を用いた場合とは異なり、脚部材３２を安定状態に維持できる。従って、脚部材３２上に対する梁材３３の架設を容易かつ正確に行うことができる。 (2) In order to make the leg member 32 stand upright, the leg member 32 can be maintained in a stable state, unlike the case where a single tube is used. Therefore, the beam member 33 can be easily and accurately erected on the leg member 32.

（３）脚部材３２のボルト挿通孔３６と、直立補助装置１１の取付板１３のボルト挿通孔１４との組み合わせを適宜に選択することにより、直立補助装置１１の高さやトンネル延長方向の位置を調節できる。また、ジャッキロッド１８と雌ネジ部材２０とのネジ作用によってジャッキロッド１８の高さを自在に調節できる。従って、トンネル１００の底盤１０１の高さや、レール１０２の上面の位置にあわせて、接地板１９を適切な位置に高さ調節できて、脚部材３２を鉛直線に沿って安定させることができる。 (3) By appropriately selecting the combination of the bolt insertion hole 36 of the leg member 32 and the bolt insertion hole 14 of the mounting plate 13 of the upright auxiliary device 11, the height of the upright auxiliary device 11 and the position in the tunnel extension direction can be determined. Can be adjusted. Further, the height of the jack rod 18 can be freely adjusted by the screwing action between the jack rod 18 and the female screw member 20. Therefore, the height of the ground plate 19 can be adjusted to an appropriate position according to the height of the bottom board 101 of the tunnel 100 and the position of the upper surface of the rail 102, and the leg member 32 can be stabilized along the vertical line.

（４）直立補助装置１１は、アーム１２，ジャッキロッド１８及び雌ネジ部材２０により構成されているだけであるため、部品点数が少なく、構成が簡単である。
（変更例）
本発明は前記実施形態に限定されるものではなく、以下のような態様で具体化することも可能である。そして、各実施形態及び以下の変更例は、技術的に矛盾しない範囲で互いに組み合わせて実施することができる。 (4) Since the upright assist device 11 is only composed of the arm 12, the jack rod 18, and the female screw member 20, the number of parts is small and the configuration is simple.
(Change example)
The present invention is not limited to the above embodiment, and can be embodied in the following embodiments. Then, each embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.

・ジャッキロッド１８の雌ネジ部材２０を省略し、雌ネジ部材２１を挿通筒２３の下側のみに設けること。
・挿通筒２３をネジ筒とし、そのネジ筒内にジャッキロッド１８を螺入すること。この構成の場合、雌ネジ部材２０はジャッキロッド１８の回り止めとなる。 -The female screw member 20 of the jack rod 18 is omitted, and the female screw member 21 is provided only on the lower side of the insertion cylinder 23.
-The insertion cylinder 23 is used as a screw cylinder, and the jack rod 18 is screwed into the screw cylinder. In the case of this configuration, the female screw member 20 serves as a detent for the jack rod 18.

・レール１０２が設けられていない底盤１０１において前記直立補助装置１１を用いること。あるいは、脚部材３２がレール１０２から浮き上がった状態において前記直立補助装置１１を用いること。この場合には、ジャッキロッド１８が脚部材３２を支える脚となる。 -Use the upright assist device 11 on the bottom board 101 in which the rail 102 is not provided. Alternatively, the upright assist device 11 is used in a state where the leg member 32 is lifted from the rail 102. In this case, the jack rod 18 serves as a leg that supports the leg member 32.

１１…直立補助装置
１２…アーム
１４…ボルト挿通孔
１６…挿通筒
１７…ジャッキ
１８…ジャッキロッド
１９…接地板
２０…雌ネジ部材
２１…雌ネジ部材
２２…本体
３７…ボルト 11 ... Upright assist device 12 ... Arm 14 ... Bolt insertion hole 16 ... Insertion cylinder 17 ... Jack 18 ... Jack rod 19 ... Ground plate 20 ... Female screw member 21 ... Female screw member 22 ... Main body 37 ... Bolt

Claims (6)

セントルの脚部材の下部側面にアームを取り付けるとともに、そのアームにジャッキを支持し、そのジャッキを接地させて、高さ調節することにより、前記脚部材の角度を調節するセントルの脚部材の直立方法。 A method of erecting a leg member of a centle that adjusts the angle of the leg member by attaching an arm to the lower side surface of the leg member of the center, supporting a jack on the arm, grounding the jack, and adjusting the height. .. 前記ジャッキを有するアームを前記脚部材の両側面に取り付ける請求項１に記載のセントルの脚部材の直立方法。 The method for uprighting a leg member of a centle according to claim 1, wherein an arm having the jack is attached to both side surfaces of the leg member. 前記脚部材の下面をトンネルの底面におけるレールの上面に当接させる請求項１または２に記載のセントルの脚部材の直立方法。 The method for erecting a leg member of a centle according to claim 1 or 2, wherein the lower surface of the leg member is brought into contact with the upper surface of the rail at the bottom surface of the tunnel. 前記アームの基端部を前記脚部材のボルト挿通孔にボルトによって取り付ける請求項１〜３のうちのいずれか一項に記載のセントルの脚部材の直立方法。 The method for erecting a leg member of a centle according to any one of claims 1 to 3, wherein a base end portion of the arm is attached to a bolt insertion hole of the leg member by a bolt. 基端部においてセントルの脚部材の下部側面に取付可能にしたアームと、
そのアームの先端部に設けられ、下端において接地可能にしたジャッキと
を備えたセントルの脚部材の直立補助装置。 An arm that can be attached to the lower side surface of the leg member of the center at the base end,
An upright assist device for the leg member of the center, which is provided at the tip of the arm and has a jack that can be grounded at the lower end. 前記アームの先端部に筒部を設けるとともに、その筒部にジャッキのジャッキロッドを挿通し、そのジャッキロッドにはアームの少なくとも下面に当接可能にした雌ネジ部材を設けた請求項５に記載のセントルの脚部材の直立補助装置。 The fifth aspect of the present invention, wherein a tubular portion is provided at the tip of the arm, a jack rod of a jack is inserted into the tubular portion, and the jack rod is provided with a female screw member capable of contacting at least the lower surface of the arm. Upright assist device for the leg members of the center.
JP2020089800A 2020-05-22 2020-05-22 Upright method of the leg member of the center Active JP7337386B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2020089800A JP7337386B2 (en) 2020-05-22 2020-05-22 Upright method of the leg member of the center

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2020089800A JP7337386B2 (en) 2020-05-22 2020-05-22 Upright method of the leg member of the center

Publications (2)

Publication Number Publication Date
JP2021183786A true JP2021183786A (en) 2021-12-02
JP7337386B2 JP7337386B2 (en) 2023-09-04

Family

ID=78767206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2020089800A Active JP7337386B2 (en) 2020-05-22 2020-05-22 Upright method of the leg member of the center

Country Status (1)

Country Link
JP (1) JP7337386B2 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51107002U (en) * 1975-02-26 1976-08-26
JPH0396598A (en) * 1989-09-07 1991-04-22 Tobishima Corp Movable form for tunnel
JP2005282096A (en) * 2004-03-29 2005-10-13 Shima Kogyo Kk Concrete placing form support device assembling method in tunnel, concrete placing form support device disassembling method in tunnel, lifting device and lifting mechanism to concrete placing form support device in tunnel
JP2017166312A (en) * 2016-03-15 2017-09-21 有限会社 伊藤 Method for assembling form support device for molding tunnel lining concrete, and leg connector for form support device
JP2017186882A (en) * 2016-03-30 2017-10-12 有限会社 伊藤 Assembling method of formwork support device for tunnel covering concrete formation, and net support tool
JP2019167734A (en) * 2018-03-23 2019-10-03 日建リース工業株式会社 Outrigger for scaffold
JP2019199725A (en) * 2018-05-15 2019-11-21 有限会社 伊藤 Assembly method of arch center supporting device and connection member

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51107002U (en) * 1975-02-26 1976-08-26
JPH0396598A (en) * 1989-09-07 1991-04-22 Tobishima Corp Movable form for tunnel
JP2005282096A (en) * 2004-03-29 2005-10-13 Shima Kogyo Kk Concrete placing form support device assembling method in tunnel, concrete placing form support device disassembling method in tunnel, lifting device and lifting mechanism to concrete placing form support device in tunnel
JP2017166312A (en) * 2016-03-15 2017-09-21 有限会社 伊藤 Method for assembling form support device for molding tunnel lining concrete, and leg connector for form support device
JP2017186882A (en) * 2016-03-30 2017-10-12 有限会社 伊藤 Assembling method of formwork support device for tunnel covering concrete formation, and net support tool
JP2019167734A (en) * 2018-03-23 2019-10-03 日建リース工業株式会社 Outrigger for scaffold
JP2019199725A (en) * 2018-05-15 2019-11-21 有限会社 伊藤 Assembly method of arch center supporting device and connection member

Also Published As

Publication number Publication date
JP7337386B2 (en) 2023-09-04

Similar Documents

Publication Publication Date Title
JP2021183786A (en) Upright method for leg members of arch center and upright assist device
US6761249B2 (en) Support such as a trestle or a stepladder
CN102817482A (en) Steel column correcting device and correcting construction method thereof
WO2017195233A1 (en) Falsework
JP2005120719A (en) Solid viaduct structure and its construction method
KR102553574B1 (en) Precast concrete member with connection box and construction method thereof
US2293489A (en) Structural element
GB2041059A (en) Support structure for building forms
JP3564411B2 (en) Installation method of inclined structure consisting of PC stairs
KR200291983Y1 (en) Foundation structure for steel tower
JP2014051780A (en) Connection structure between steel pipe and foundation of building structure
CN209760836U (en) Sheet type truss horizontal assembling jig frame capable of being assembled and adjusted
JP2019060082A (en) Timbering
JP2001065175A (en) Finely adjusting support base for structure
JP2008255709A (en) Eccentric connection device for foundation pile and pillar, and construction method
CN220080716U (en) Photovoltaic module installs two hoops scaffold frame of encorbelmenting
JP2587379B2 (en) Temporary support
KR200285372Y1 (en) Horizontal Adjustable Underpinning for Wall Foam Panel
CN215561976U (en) I-steel plate composite beam assembling device
CN219099788U (en) Pre-buried arch foot system of arched bridge
CN211850728U (en) Scaffold suitable for assembled shear force wall
JPS5910267Y2 (en) temporary scaffolding structure
CN212359287U (en) Steep slope iron tower leg heightening structure
JPS6210352Y2 (en)
JPH11182026A (en) Temporary scaffold construction field assembling block

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20220207

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20221128

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20221206

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20230203

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20230425

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20230515

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20230718

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20230816

R150 Certificate of patent or registration of utility model

Ref document number: 7337386

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150