JP2802612B2 - Underwater formwork method - Google Patents
Underwater formwork methodInfo
- Publication number
- JP2802612B2 JP2802612B2 JP8158092A JP15809296A JP2802612B2 JP 2802612 B2 JP2802612 B2 JP 2802612B2 JP 8158092 A JP8158092 A JP 8158092A JP 15809296 A JP15809296 A JP 15809296A JP 2802612 B2 JP2802612 B2 JP 2802612B2
- Authority
- JP
- Japan
- Prior art keywords
- formwork
- steel frame
- underwater
- concrete
- columns
- 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.)
- Expired - Fee Related
Links
Landscapes
- Revetment (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、護岸工事その他の
施工での水中型枠工法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater formwork method for revetment work and other works.
【０００２】[0002]
【従来の技術】水中での現場打ちコンクリート工事で
は、水中に型枠を設置してその中にコンクリートを打設
する。そして、この型枠としては、通常陸上で組むよう
な型枠を水中で組むことになる。2. Description of the Related Art In the field of cast-in-place concrete underwater, a formwork is installed in water and concrete is poured therein. Then, as this formwork, a formwork that is normally assembled on land is assembled underwater.
【０００３】[0003]
【発明が解決しようとする課題】このような水中での型
枠設置は潜水士の作業となるが、型枠を構成する部材点
数が多いと作業工程が複雑化し、また、作業時間も長く
なる。すなわち、水中での現場打ちコンクリート工事に
おいては、使用する水中型枠の形式によって作業の効
率、安全性が大きく左右される。The installation of a formwork in water is a task of a diver, but if the number of members constituting the formwork is large, the work process becomes complicated and the work time becomes long. . In other words, in underwater cast-in-place concrete work, the efficiency and safety of work are greatly affected by the type of underwater formwork used.
【０００４】本発明の目的は前記従来例の不都合を解消
し、水中での型枠組立て作業が容易であるとともに、波
圧、流水圧等の対する型枠の安全性も向上することがで
きる水中型枠工法を提供することにある。An object of the present invention is to solve the disadvantages of the prior art, to facilitate the assembling work of the formwork in water, and to improve the safety of the formwork against wave pressure, flowing water pressure and the like. An object of the present invention is to provide a formwork method.
【０００５】[0005]
【課題を解決するための手段】本発明は前記目的を達成
するため、適宜間隔で並べた支柱となるＨ形鋼間を横材
と筋違いで連結してなる鋼製フレームを現地の陸上で組
み立て、該鋼製フレームを水中の所定の位置にセット
し、該鋼製フレームを既設構造物にアンカーで繋ぎと
め、プレキャストコンクリート製のせき板をその端部を
前記支柱のフランジ間の溝に沿わせて支柱間に落とし込
んで型枠を形成し、その内側にコンクリートを打設する
ことを要旨とするものである。SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention assembles a steel frame in which H-shaped steel beams, which are columns arranged at appropriate intervals, are connected to cross members with a straight line on land on land. The steel frame is set at a predetermined position in the water, the steel frame is anchored to the existing structure with an anchor, and the end of the precast concrete dam is placed along the groove between the flanges of the support. The gist of the present invention is to form a formwork by dropping it between support columns and to cast concrete inside the formwork.
【０００６】本発明によれば、型枠のせき板とバタ材で
ある鋼製フレームとを分離した構造とし、それぞれを陸
上で製作した後、個別に建込むことになる。その結果、
型枠設置のためのセパレータの取付けなど水中作業が必
要となる段階ではせき板は挿入されていないので、潜水
士の作業空間に余裕があり、作業性がよい。また、せき
板による作業空間が閉塞されることもないので、安全性
が高い。According to the present invention, the damping plate of the formwork and the steel frame, which is a fluttering material, are separated from each other, and they are separately built after being manufactured on land. as a result,
At the stage where underwater work is required, such as installation of a separator for installation of a formwork, since the dam is not inserted, the work space for the diver has ample room and good workability. In addition, since the working space is not blocked by the weir board, the safety is high.
【０００７】また、せき板の挿入は型枠組立の最終工程
でよいため、型枠に作用する波圧等の影響を最小限に抑
えることができる。Further, since the insertion of the weir plate may be performed in the final step of assembling the formwork, the influence of wave pressure or the like acting on the formwork can be minimized.
【０００８】[0008]
【発明の実施の形態】以下、図面について本発明の実施
の形態を説明する。図１は本発明の水中型枠工法の１実
施形態を示す縦断側面図、図２は要部の拡大縦断側面
図、図３は要部の拡大平面図である。Embodiments of the present invention will be described below with reference to the drawings. 1 is a vertical sectional side view showing one embodiment of the underwater formwork method of the present invention, FIG. 2 is an enlarged vertical sectional side view of a main part, and FIG. 3 is an enlarged plan view of a main part.
【０００９】図中１は図４にも示すようにＨ形鋼による
支柱２を適宜間隔（２〜３ｍ）で並べた鋼製フレーム
で、Ｈ形鋼４を上端の横材として、アングル材３を中央
の横材および筋違いとして、チャンネル材５を下端の横
材として配設した。図中６はボルト穴である。In FIG. 1, reference numeral 1 denotes a steel frame in which columns 2 made of H-shaped steel are arranged at appropriate intervals (2 to 3 m) as shown in FIG. Was set as a center horizontal member and a straight line, and the channel member 5 was provided as a lower horizontal member. 6 is a bolt hole in the figure.
【００１０】この鋼製フレーム１を現地の陸上で組み立
て、これを水中の所定位置にセットし、既設構造物７に
アンカー１４で繋ぎとめる。このアンカー１４は、セパ
レターとしての鋼棒９と平板やアングル材などの結合金
物１６とボルト・ナット１１、ナット１２で構成し、既
設構造物７にはケミカルアンカー１３で固定する。The steel frame 1 is assembled on the land on the site, set at a predetermined position in the water, and connected to the existing structure 7 with the anchor 14. The anchor 14 is composed of a steel rod 9 as a separator, a coupling hardware 16 such as a flat plate or an angle material, and bolts / nuts 11 and nuts 12, and is fixed to the existing structure 7 with a chemical anchor 13.
【００１１】そして工場で製作したプレキャストコンク
リート製のせき板８をその端部を前記鋼製フレーム１の
支柱２のフランジ２ａ間の溝に沿わせて支柱２間に落と
し込み、図３に示すようにフランジ２ａとの隙間をキャ
ンバー１５で固定する。Then, a precast concrete weir plate 8 manufactured at the factory is dropped between the columns 2 along the groove between the flanges 2a of the columns 2 of the steel frame 1 as shown in FIG. The gap with the flange 2a is fixed with the camber 15.
【００１２】せき板８は図５に示すように一体化用の鉄
筋１０を突出してなるが、この鉄筋１０はせき板８の挿
入時は折り曲げて表面に沿わせ、落とし込み後に伸ばし
て突出させる。また、せき板８は上下に数段積み重ね
る。As shown in FIG. 5, the weir plate 8 is formed by projecting a reinforcing bar 10 for integration. When the weir plate 8 is inserted, the reinforcing bar 10 is bent to conform to the surface, and is extended and projected after dropping. Further, the weir plates 8 are stacked one above the other.
【００１３】このようにして鋼製フレーム１とせき板８
で型枠を形成し、既設構造物７との間に水中コンクリー
ト（水中不分離コンクリート）を打設すれば、既設構造
物７の補修・補強が行える。なお、前記鋼製フレーム１
やせき板８の形状寸法は構造物の形状や作業条件に応じ
て、構造計算により決定する。In this manner, the steel frame 1 and the dam 8
When the underwater concrete (underwater inseparable concrete) is cast between the mold and the existing structure 7, the existing structure 7 can be repaired and reinforced. The steel frame 1
The shape and size of the damping plate 8 are determined by structural calculation according to the shape of the structure and working conditions.
【００１４】前記実施形態は既設構造物の補修・補強コ
ンクリートを打設する場合について説明したが、既設構
造物に鋼製フレームをアンカーで繋ぎとめ、プレキャス
トコンクリート製のせき板をその端部を前記支柱のフラ
ンジ間の溝に沿わせて支柱間に落とし込んで型枠を形成
してコンクリートを打設する場合であれば、補修・補強
の場合に限らず適用が可能なものである。In the above-described embodiment, the case where repair / reinforcement concrete for an existing structure is cast is explained. However, a steel frame is connected to the existing structure with an anchor, and a precast concrete dam is attached to the end of the steel frame. The present invention is applicable not only to the case of repair and reinforcement, but also to the case where concrete is poured by dropping between pillars along the groove between the flanges of the pillars to form a formwork, and is applicable.
【００１５】[0015]
【発明の効果】以上述べたように本発明の水中型枠工法
は、水中での型枠組立て作業が容易であるとともに、波
圧、流水圧等の対する型枠の安全性も向上するものであ
る。As described above, the underwater formwork method of the present invention facilitates the work of assembling the formwork in water and improves the safety of the formwork against wave pressure, flowing water pressure and the like. is there.
【図１】本発明の水中型枠工法の１実施形態を示す縦断
側面図である。FIG. 1 is a vertical sectional side view showing one embodiment of an underwater formwork method of the present invention.
【図２】本発明の水中型枠工法の１実施形態を示す要部
の拡大縦断側面図である。FIG. 2 is an enlarged longitudinal sectional side view of a main part showing one embodiment of the underwater formwork method of the present invention.
【図３】本発明の水中型枠工法の１実施形態を示す要部
の拡大平面図である。FIG. 3 is an enlarged plan view of a main part showing one embodiment of the underwater formwork method of the present invention.
【図４】鋼製フレームの正面図である。FIG. 4 is a front view of a steel frame.
【図５】せき板の横断平面図である。FIG. 5 is a cross-sectional plan view of the weir plate.
１…鋼製フレーム ２…支柱 ２ａ…フランジ ３…アングル材 ４…Ｈ形鋼 ５…チャンネル材 ６…ボルト穴 ７…既成構造物 ８…せき板 ９…鋼棒 １０…鉄筋 １１…ボルト・ナット １２…ナット １３…ケミカルアンカー １４…アンカー １５…キャンバー １６…結合金物 DESCRIPTION OF SYMBOLS 1 ... Steel frame 2 ... Prop 2a ... Flange 3 ... Angle material 4 ... H-shaped steel 5 ... Channel material 6 ... Bolt hole 7 ... Prefabricated structure 8 ... Weir board 9 ... Steel rod 10 ... Reinforcing rod 11 ... Bolt / nut 12 ... Nut 13 ... Chemical anchor 14 ... Anchor 15 ... Camber 16 ... Binding hardware
Claims (1)
横材と筋違いで連結してなる鋼製フレームを現地の陸上
で組み立て、該鋼製フレームを水中の所定の位置にセッ
トし、該鋼製フレームを既設構造物にアンカーで繋ぎと
め、プレキャストコンクリート製のせき板をその端部を
前記支柱のフランジ間の溝に沿わせて支柱間に落とし込
んで型枠を形成し、その内側にコンクリートを打設する
ことを特徴とする水中型枠工法。1. A steel frame formed by connecting H-shaped steels, which are columns arranged at appropriate intervals, with a cross member and a streak, is assembled on land locally, and the steel frame is set at a predetermined position in water. Anchoring the steel frame to the existing structure with an anchor, dropping a precast concrete weir plate between the columns with the ends thereof along the grooves between the flanges of the columns to form a formwork, An underwater formwork method characterized by placing concrete in the concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8158092A JP2802612B2 (en) | 1996-06-19 | 1996-06-19 | Underwater formwork method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8158092A JP2802612B2 (en) | 1996-06-19 | 1996-06-19 | Underwater formwork method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH108713A JPH108713A (en) | 1998-01-13 |
| JP2802612B2 true JP2802612B2 (en) | 1998-09-24 |
Family
ID=15664133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8158092A Expired - Fee Related JP2802612B2 (en) | 1996-06-19 | 1996-06-19 | Underwater formwork method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2802612B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4776043B1 (en) * | 2010-09-06 | 2011-09-21 | 株式会社西田工業 | Expansion method for offshore structures |
| JP6915844B2 (en) * | 2017-03-27 | 2021-08-04 | 株式会社 南組 | Work space formation for wall surface repair and work space formation method for wall surface repair |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2836406B2 (en) * | 1992-11-06 | 1998-12-14 | 株式会社大林組 | Construction method of reinforced concrete wall using PC version |
| JP2852173B2 (en) * | 1993-04-21 | 1999-01-27 | ジオスター株式会社 | Seawall construction using steel sheet piles |
-
1996
- 1996-06-19 JP JP8158092A patent/JP2802612B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH108713A (en) | 1998-01-13 |
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