JP7709730B2 - Stake installation jig and stake installation method - Google Patents
Stake installation jig and stake installation methodInfo
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Description
本発明は、堰堤工事における型枠を位置決めする丁張り器材を設置するための丁張り設置治具及び丁張り設置方法に関するものである The present invention relates to a stake installation jig and a stake installation method for installing stake installation equipment that positions formwork in dam construction.
従来、河川を流れる水や土砂を堰き止めるための堰堤工事が行われている。堰堤工事は、図４に示すように、山７０，７０の間を流れる河川６０を横切って堰堤１を建造するものである。 Conventionally, dam construction has been carried out to dam water and sediment flowing in rivers. As shown in Figure 4, dam construction involves constructing a dam 1 across a river 60 that flows between mountains 70, 70.
堰堤１は、図５の断面図に示すように、上方に向かって幅が狭くなる台形の断面形状を有しており、河川５０（上流）及び河川６０（下流）のそれぞれに対して傾斜した堰堤壁を有している。また、堰堤１の工事は、図６に示すように、下から上に１ａ→１ｂ→１ｃ→１ｄの順に各段にコンクリートを打設していくことから、各段の傾斜角度を揃える必要がある。そのため、コンクリートを打設するための型枠を、正確な位置、勾配で設置するために、丁張り器材が用いられている。 As shown in the cross-sectional view of Figure 5, dam 1 has a trapezoidal cross-section that narrows toward the top, and has dam walls that are inclined toward both river 50 (upstream) and river 60 (downstream). In addition, as shown in Figure 6, construction of dam 1 involves pouring concrete in each stage from bottom to top in the order of 1a → 1b → 1c → 1d, so the inclination angle of each stage must be consistent. For this reason, stake-setting equipment is used to set the formwork for pouring the concrete in the correct position and at the correct gradient.
従来の丁張り器材は、既設コンクリートの基礎面にアンカー等により木柱を固定して組み立てたものであり、固定した後に丁張り器材に沿って型枠を設置し、型枠を設置した後には木柱の基礎面への固定を解除し撤去するようになっていた。 Conventional stake installation equipment is assembled by fixing wooden posts to the existing concrete foundation surface with anchors, etc. After fixing, formwork is installed along the stake installation equipment, and after the formwork is installed, the wooden posts are released from the foundation surface and removed.
また、ダム面状工法において用いる型枠に関して、特許文献１には、コンクリート打設域Ｘの周縁に沿設される堰部材１１と、堰部材１１をコンクリート打設域Ｘに対して傾斜させた状態に支持する支持部材１２を備えた型枠が記載されており、型枠の早期撤去及び再利用を可能にするようになっている。 Furthermore, with regard to the formwork used in the dam surface construction method, Patent Document 1 describes a formwork that includes a dam member 11 that is installed along the periphery of the concrete pouring area X, and a support member 12 that supports the dam member 11 in an inclined state relative to the concrete pouring area X, making it possible to quickly remove and reuse the formwork.
従来の丁張り器材は、既設コンクリートの基礎面へのアンカー等による固定作業や固定解除作業が必要であるとともに、固定後の移動や位置調整が難しく、型枠設置作業の効率が悪かった。 Conventional stake installation equipment requires the use of anchors or other tools to be fixed to the existing concrete foundation surface and then released, and once fixed, it is difficult to move or adjust the position, making formwork installation work inefficient.
本発明は、上記従来の課題を解決するものであり、既設コンクリートの基礎面への固定作業や固定解除作業を不要とし、移動や位置調整を容易にして、型枠設置作業を効率的に行うことの可能な丁張り設置治具及び丁張り設置方法を提供するものである。 The present invention solves the above-mentioned problems of the conventional method by providing a stake installation tool and a stake installation method that eliminate the need for fixing and releasing work to the existing concrete foundation surface, makes it easy to move and adjust the position, and enables efficient formwork installation work.
上記課題を解決するため、本発明の丁張り設置治具は、堰堤工事における型枠を位置決めする丁張り器材を設置するための丁張り設置治具であって、型枠設置面に載置されるベース部と、該ベース部から直立する直立部と、前記ベース部の傾きを調整する調整部とを有することを特徴とする。 In order to solve the above problems, the stake installation jig of the present invention is a stake installation jig for installing stake installation equipment that positions formwork in dam construction, and is characterized by having a base part that is placed on the formwork installation surface, an upright part that stands upright from the base part, and an adjustment part that adjusts the inclination of the base part.
また、本発明の丁張り設置方法は、上記丁張り設置治具を用いた丁張り設置方法であって、前記調整部により前記ベース部の傾きを調整し、前記ベース部に重りを積載して型枠設置面に安定させ、前記直立部に丁張り器材を取り付けることを特徴とする。 The method for installing stakes of the present invention is a method for installing stakes using the above-mentioned stake installation jig, and is characterized in that the inclination of the base part is adjusted by the adjustment part, a weight is placed on the base part to stabilize it on the formwork installation surface, and stake installation equipment is attached to the upright part.
また好ましくは、前記丁張り器材に堰堤壁の墨出しを行ってガイド部材を取り付け、該ガイド部材に型枠を押し当てて位置決めすることを特徴とする。 It is also preferable that the dam wall is marked out on the bridg-setting equipment, a guide member is attached, and the formwork is pressed against the guide member to position it.
本発明の丁張り設置治具は、堰堤工事における型枠を位置決めする丁張り器材を設置するための丁張り設置治具であり、型枠設置面に載置されるベース部と、ベース部から直立する直立部と、ベース部の傾きを調整する調整部とを有している。ベース部は型枠設置面に固定されず載置されるだけなので、直立部に丁張り器材を取り付けて、調整部によりベース部の傾きを調整すれば型枠の位置決めが可能であり、丁張り器材の既設コンクリートの基礎面への固定作業や固定解除作業が不要である。また、基礎面に固定されないので、移動や位置調整が容易である。また、型枠設置後には基礎面への固定解除作業なしで撤去し、再利用することができる。 The bunk setting jig of the present invention is a bunk setting jig for setting bunk setting equipment that positions formwork in dam construction, and has a base part that is placed on the formwork installation surface, an upright part that stands upright from the base part, and an adjustment part that adjusts the inclination of the base part. Since the base part is simply placed on the formwork installation surface without being fixed thereto, the formwork can be positioned by attaching the bunk setting equipment to the upright part and adjusting the inclination of the base part with the adjustment part, and there is no need to fix or release the bunk setting equipment to the existing concrete foundation surface. In addition, since it is not fixed to the foundation surface, it is easy to move and adjust the position. In addition, after the formwork is installed, it can be removed and reused without the need to fix or release it to the foundation surface.
また、本発明の丁張り設置方法は、上記丁張り設置治具を用いた丁張り設置方法であり、調整部によりベース部の傾きを調整し、ベース部に重りを積載して型枠設置面に安定させることができる。そして、直立部に丁張り器材を取り付けて型枠の位置決めを行うことができる。 The method for installing stakes of the present invention uses the above-mentioned stake installation jig, and the inclination of the base part can be adjusted by the adjustment part, and a weight can be placed on the base part to stabilize it on the form installation surface. Then, the stake installation equipment can be attached to the upright part to position the form.
また、丁張り器材に堰堤壁の墨出しを行ってガイド部材を取り付け、ガイド部材に型枠を押し当てて位置決めすることにより、型枠を正確な位置に正確な勾配で、容易に設置することができる。 In addition, by marking out the dam wall on the stake-setting equipment, attaching guide members, and pressing the formwork against the guide members to position it, the formwork can be easily installed in the correct position and with the correct gradient.
このように、本発明の丁張り設置治具及び丁張り設置方法によれば、既設コンクリートの基礎面への固定作業や固定解除作業を不要とし、移動や位置調整を容易にして、型枠設置作業を効率的に行うことができる。 In this way, the stake installation tool and stake installation method of the present invention eliminate the need for fixing and releasing the work to the existing concrete foundation surface, making it easy to move and adjust the position, and allowing for efficient formwork installation work.
次に、図１乃至図３を参照して、本発明の実施形態に係る丁張り設置治具及び丁張り設置方法について説明する。本実施形態に係る丁張り設置治具及び丁張り設置方法は、堰堤工事における型枠を位置決めする丁張り器材を設置するためのものである。 Next, a stake installation jig and a stake installation method according to an embodiment of the present invention will be described with reference to Figures 1 to 3. The stake installation jig and the stake installation method according to this embodiment are intended to install stake installation equipment that positions formwork in dam construction.
図１に示すように、丁張り設置治具１０は丁張り器材４０を取り付けるための台座となるものである。そして、取り付けられた丁張り器材４０に合わせて型枠２０の位置決めがなされるようになっている。丁張り設置治具１０は、鋼材等により構成することにより耐久性を付与して再利用することができる。これに対して、丁張り器材４０は、安価な桟木や垂木で構成することができる。 As shown in FIG. 1, the stake installation jig 10 serves as a base for mounting the stake installation equipment 40. The formwork 20 is then positioned to match the mounted stake installation equipment 40. The stake installation jig 10 can be made of steel or other materials to give it durability and make it reusable. In contrast, the stake installation equipment 40 can be made of inexpensive battens and rafters.
丁張り器材４０は、柱部材３，４、横架部材５，６及びガイド部材７から構成されている。柱部材３，４は、それぞれ丁張り設置治具１０に取り付けられており、横架部材５，６は、柱部材３，４に対して水平方向に取り付けられている。そして、横架部材５，６の先端にガイド部材７が取り付けられている。 The stake installation equipment 40 is composed of pillar members 3, 4, cross members 5, 6, and a guide member 7. The pillar members 3, 4 are each attached to a stake installation jig 10, and the cross members 5, 6 are attached horizontally to the pillar members 3, 4. The guide member 7 is attached to the tip of the cross members 5, 6.
型枠２０は、間隔を空けて取り付けられた支持部材２１を有する板部材である。型枠２０は、板面が丁張り器材４０のガイド部材７に沿うようにして位置決めされている。位置決めされた型枠２０は、複数箇所において、型枠２０に取り付けられたセパレータ３１と基礎に埋め込まれたアンカー３２とを鋼製のセパレータ３０で溶接連結することにより、基礎上に固定されている。 The formwork 20 is a plate member having support members 21 attached at intervals. The formwork 20 is positioned so that the plate surface is aligned with the guide members 7 of the baffle equipment 40. The positioned formwork 20 is fixed to the foundation at multiple points by welding separators 31 attached to the formwork 20 to anchors 32 embedded in the foundation with steel separators 30.
図２を参照して、丁張り設置治具１０について詳細に説明する。丁張り設置治具１０は、ベース部１１、直立部１２，１３、調整部１４，１４，１４から構成されている。ベース部１１は、断面Ｌ字状の鋼材１１ａ，１１ｂ，１１ｃを三辺とする平面視三角形状に形成されており、折曲部内面が内側を向くようにして、型枠設置面に載置されるようになっている。ベース部１１の２つの頂点からは、直立部１２，１３が上方に直立している。直立部１２，１３は、断面Ｌ字状の鋼材であり折曲部内面が外側を向くようにして溶接等により固定されている。 The stake installation jig 10 will be described in detail with reference to Figure 2. The stake installation jig 10 is composed of a base portion 11, upright portions 12, 13, and adjustment portions 14, 14, 14. The base portion 11 is formed in a triangular shape in a plan view with three sides being L-shaped steel members 11a, 11b, 11c, and is designed to be placed on the formwork installation surface with the inner surface of the bent portion facing inward. Upright portions 12, 13 stand upright upward from the two vertices of the base portion 11. The upright portions 12, 13 are L-shaped steel members in cross section, and are fixed by welding or the like with the inner surface of the bent portion facing outward.
ベース部１１の３つの頂点には、それぞれ調整部１４が設けられている。調整部１４は、ベース部１１の傾きを調整するためのものであり、図２（Ａ）に示すように、ベース部１１のネジ孔に挿通されたボルト１４ａ及びナット１４ｂからなるジャッキボルトにより構成されて、ボルト１４ａの突出量を調整するようになっている。これにより、ベース部１１の３つの頂点の高さを調整してベース部１１の傾きを調整することができる。なお、調整部１４は、ジャッキボルトに限定されるものではなく、他の構成であってもよい。 An adjustment unit 14 is provided at each of the three vertices of the base portion 11. The adjustment unit 14 is for adjusting the inclination of the base portion 11, and as shown in FIG. 2(A), is configured with a jack bolt consisting of a bolt 14a and a nut 14b inserted into a screw hole in the base portion 11, and is adapted to adjust the amount of protrusion of the bolt 14a. This allows the height of the three vertices of the base portion 11 to be adjusted, thereby adjusting the inclination of the base portion 11. Note that the adjustment unit 14 is not limited to a jack bolt, and may have another configuration.
図３を参照して、丁張り設置治具１０を用いた丁張り設置方法について詳細に説明する。まず、ベース部１１を型枠設置面に載置する。このとき、ベース部１１を既設コンクリートの基礎面に固定する必要はない。次に、調整部１４によりベース部１１の傾きを調整する。次に、ベース部１１に重り２として土嚢を積載して型枠設置面に安定させる。次に、丁張り設置治具１０の直立部１２，１３に丁張り器材４０の柱部材３，４を取り付ける。このとき、直立部１２，１３の折曲部内面に柱部材３，４を嵌め込んで鋼線８で複数個所を締結して固定する。次に、柱部材３，４に対して水平方向に横架部材５，６を釘９により取り付ける。 With reference to Figure 3, the method of installing the stake using the stake installation jig 10 will be described in detail. First, the base part 11 is placed on the formwork installation surface. At this time, it is not necessary to fix the base part 11 to the foundation surface of the existing concrete. Next, the inclination of the base part 11 is adjusted by the adjustment part 14. Next, sandbags are loaded as weights 2 on the base part 11 to stabilize it on the formwork installation surface. Next, the pillar members 3, 4 of the stake installation equipment 40 are attached to the upright parts 12, 13 of the stake installation jig 10. At this time, the pillar members 3, 4 are fitted into the inner surface of the bent parts of the upright parts 12, 13 and fixed by fastening multiple points with steel wires 8. Next, the cross members 5, 6 are attached horizontally to the pillar members 3, 4 with nails 9.
次に、丁張り器材４０の横架部材５，６に堰堤壁の寸法ポイントＡの墨出しを行う。そして、寸法ポイントＡに沿って横架部材５，６にガイド部材７を釘９により取り付け、不要となるＢ部を切断する。最後にガイド部材７に型枠２０を押し当てて位置決めし、複数箇所において、型枠２０に取り付けられたセパレータ３１と基礎に埋め込まれたアンカー３２とを鋼製のセパレータ３０で溶接連結することにより、基礎上に固定する。 Next, the dimensional point A of the dam wall is marked on the cross members 5 and 6 of the baffle equipment 40. Then, the guide members 7 are attached to the cross members 5 and 6 with nails 9 along the dimensional point A, and the unnecessary part B is cut off. Finally, the formwork 20 is pressed against the guide members 7 to position them, and the separators 31 attached to the formwork 20 are welded to the anchors 32 embedded in the foundation at multiple points with steel separators 30, thereby fixing them to the foundation.
型枠２０が固定されたら、丁張り設置治具１０及び丁張り器材４０を撤去して型枠設置作業を完了する。撤去した丁張り設置治具１０は、鋼材等により構成することにより耐久性を付与して再利用することができる。また、丁張り設置治具１０は、丁張り器材４０を取り付けるための台座であるため、取り付ける丁張り器材４０を変更することで、他の場所の型枠設置作業にも使用することのできる共用性がある。セパレータ３０，３１及びアンカー３２は、コンクリート打設時にそのまま埋設される。 Once the formwork 20 is fixed, the bunk installation jig 10 and the bunk equipment 40 are removed to complete the formwork installation work. The removed bunk installation jig 10 can be made durable and reused by constructing it from steel or other materials. In addition, since the bunk installation jig 10 is a base for mounting the bunk equipment 40, it can be used for formwork installation work in other locations by changing the bunk equipment 40 to be mounted, so it has versatility. The separators 30, 31 and anchors 32 are buried as they are when the concrete is poured.
なお、調整部１４によるベース部１１の傾きの調整や土壌の積載作業は、丁張り器材４０の取り付け後においても適宜行うことができる。 In addition, the adjustment of the inclination of the base part 11 using the adjustment part 14 and the loading of soil can be performed as appropriate even after the installation of the stake installation equipment 40.
本実施形態に係る丁張り設置治具１０は、堰堤工事における型枠２０を位置決めする丁張り器材４０を設置するための丁張り設置治具であり、型枠設置面に載置されるベース部１１と、ベース部１１から直立する直立部１２，１３と、ベース部１１の傾きを調整する調整部１４とを有している。ベース部１１は型枠設置面に固定されず載置されるだけなので、直立部１２，１３に丁張り器材４０を取り付けて、調整部１４によりベース部１１の傾きを調整すれば型枠２０の位置決めが可能であり、既設コンクリートの基礎面への固定作業や固定解除作業が不要である。また、基礎面に固定されないので、移動や位置調整が容易である。また、型枠設置後には基礎面への固定解除作業なしで撤去し、再利用することができる。 The bunk setting jig 10 according to this embodiment is a bunk setting jig for setting a bunk setting device 40 that positions the formwork 20 in dam construction, and has a base part 11 that is placed on the formwork installation surface, upright parts 12, 13 that stand upright from the base part 11, and an adjustment part 14 that adjusts the inclination of the base part 11. Since the base part 11 is not fixed to the formwork installation surface but is simply placed on it, the bunk setting device 40 can be attached to the upright parts 12, 13 and the inclination of the base part 11 can be adjusted by the adjustment part 14 to position the formwork 20, and there is no need to fix or release the bunk setting device 40 to the existing concrete foundation surface. In addition, since it is not fixed to the foundation surface, it is easy to move and adjust the position. In addition, after the formwork is installed, it can be removed and reused without the need to fix or release the bunk setting device 40 to the foundation surface.
また、本実施形態に係る丁張り設置方法は、丁張り設置治具１０を用いた丁張り設置方法であり、調整部１４によりベース部１１の傾きを調整し、ベース部１１に重り２を積載して型枠設置面に安定させることができる。そして、直立部１２，１３に丁張り器材４０を取り付けて型枠２０の位置決めを行うことができる。 The method for setting up the stakes according to this embodiment uses a stake setting tool 10, and the inclination of the base part 11 can be adjusted by the adjustment part 14, and the weight 2 can be placed on the base part 11 to stabilize it on the formwork installation surface. Then, the stake setting equipment 40 can be attached to the upright parts 12 and 13 to position the formwork 20.
また、丁張り器材４０に堰堤壁の墨出しを行ってガイド部材７を取り付け、ガイド部材７に型枠２０を押し当てて位置決めすることにより、型枠２０を正確な位置に正確な勾配で、容易に設置することができる。 In addition, by marking out the dam wall on the bund installation equipment 40, attaching the guide member 7, and pressing the formwork 20 against the guide member 7 to position it, the formwork 20 can be easily installed at the correct position and with the correct gradient.
このように、本実施形態に係る丁張り設置治具１０及び丁張り設置方法によれば、既設コンクリートの基礎面への固定作業や固定解除作業を不要とし、移動や位置調整を容易にして、型枠設置作業を効率的に行うことができる。 In this way, the stake installation jig 10 and stake installation method according to this embodiment eliminate the need for fixing and unlocking work to the existing concrete foundation surface, making it easy to move and adjust the position, and allowing for efficient formwork installation work.
以上、本発明の実施形態に係る丁張り設置治具及び丁張り設置方法について説明したが、本発明は上述した実施の形態に限定されるわけではなく、その他種々の変更が可能である。 The above describes the stake installation jig and stake installation method according to an embodiment of the present invention, but the present invention is not limited to the above-mentioned embodiment, and various other modifications are possible.
例えば、本実施形態に係る丁張り設置治具１０のベース部１１は、平面視三角形状であるが、四角形状やその他の多角形状、円形状等でもよい。 For example, the base portion 11 of the stake installation jig 10 according to this embodiment is triangular in plan view, but may also be rectangular, another polygonal shape, circular, etc.
１ 堰堤
２ 重り（土嚢）
３ 柱部材
４ 柱部材
５ 横架部材
６ 横架部材
７ ガイド部材
８ 鋼線
９ 釘
１０ 丁張り設置治具
１１ ベース部
１２ 直立部
１３ 直立部
１４ 調整部（ジャッキボルト）
２０ 型枠
２１ 支持部材
３０ セパレータ
３１ セパレータ
３２ アンカー
４０ 丁張り器材
５０ 河川（上流）
６０ 河川（下流）
７０ 山
1. Dam 2. Weight (sandbag)
Reference Signs List 3 Pillar member 4 Pillar member 5 Cross member 6 Cross member 7 Guide member 8 Steel wire 9 Nail 10 Stake installation jig 11 Base portion 12 Upright portion 13 Upright portion 14 Adjustment portion (jack bolt)
20 Formwork 21 Support member 30 Separator 31 Separator 32 Anchor 40 Stake attachment material 50 River (upstream)
60 River (downstream)
70 mountain
Claims (3)
前記ベース部が、断面Ｌ字状の鋼材を三辺とする平面視三角形状に形成されており、
前記丁張り器材が、柱部材と、該柱部材に対して水平方向に取り付けられた横架部材と、該横架部材の先端に取り付けられたガイド部材とから構成されており、
前記直立部に前記丁張り器材の柱部材が取り付けられることを特徴とする丁張り設置治具。 A stake installation jig for installing stake installation equipment for positioning a form in dam construction, the jig having a base portion to be placed on a form installation surface, an upright portion standing upright from the base portion, and an adjustment portion for adjusting the inclination of the base portion,
The base portion is formed in a triangular shape in a plan view with three sides being made of an L-shaped cross-sectional steel material,
The stake-attaching equipment is composed of a pillar member, a horizontal member attached horizontally to the pillar member, and a guide member attached to the tip of the horizontal member,
A stake installation jig characterized in that a pillar member of the stake installation equipment is attached to the upright portion.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2021137777A JP7709730B2 (en) | 2021-08-26 | 2021-08-26 | Stake installation jig and stake installation method |
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| JP2021137777A JP7709730B2 (en) | 2021-08-26 | 2021-08-26 | Stake installation jig and stake installation method |
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| JP2023031966A JP2023031966A (en) | 2023-03-09 |
| JP7709730B2 true JP7709730B2 (en) | 2025-07-17 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3045698U (en) | 1997-07-28 | 1998-02-13 | 株式会社間組 | Formwork |
| JP2006183354A (en) | 2004-12-28 | 2006-07-13 | Nippon Steel Metal Prod Co Ltd | Construction method of civil engineering structure using log material |
| JP2020176449A (en) | 2019-04-18 | 2020-10-29 | 鹿島建設株式会社 | Formwork system and method of constructing concrete structure using this formwork system |
| US20230046180A1 (en) | 2020-01-08 | 2023-02-16 | Simem S.P.A. | Climbing formwork system for mass concrete construction, in particular for building a dam or for hydropower industry, and a method for building a mass concrete construction |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5797053U (en) * | 1980-12-05 | 1982-06-15 | ||
| JPH0663364B2 (en) * | 1988-10-17 | 1994-08-22 | 藤本商工株式会社 | Mobile formwork method and its equipment |
| JP3631517B2 (en) * | 1995-01-30 | 2005-03-23 | ランデス株式会社 | Installation structure of concrete formwork |
| JP3211026B2 (en) * | 1997-08-11 | 2001-09-25 | 株式会社山辰組 | Method for manufacturing concrete structure using L-shaped block, L-shaped block and pedestal thereof |
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2021
- 2021-08-26 JP JP2021137777A patent/JP7709730B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3045698U (en) | 1997-07-28 | 1998-02-13 | 株式会社間組 | Formwork |
| JP2006183354A (en) | 2004-12-28 | 2006-07-13 | Nippon Steel Metal Prod Co Ltd | Construction method of civil engineering structure using log material |
| JP2020176449A (en) | 2019-04-18 | 2020-10-29 | 鹿島建設株式会社 | Formwork system and method of constructing concrete structure using this formwork system |
| US20230046180A1 (en) | 2020-01-08 | 2023-02-16 | Simem S.P.A. | Climbing formwork system for mass concrete construction, in particular for building a dam or for hydropower industry, and a method for building a mass concrete construction |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2023031966A (en) | 2023-03-09 |
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