JPH0346607B2 - - Google Patents
Info
- Publication number
- JPH0346607B2 JPH0346607B2 JP13538585A JP13538585A JPH0346607B2 JP H0346607 B2 JPH0346607 B2 JP H0346607B2 JP 13538585 A JP13538585 A JP 13538585A JP 13538585 A JP13538585 A JP 13538585A JP H0346607 B2 JPH0346607 B2 JP H0346607B2
- Authority
- JP
- Japan
- Prior art keywords
- steel
- central support
- cells
- cell
- segments
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 41
- 239000010959 steel Substances 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 description 14
- 238000010276 construction Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 239000004575 stone Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000004035 construction material Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は現場組立ての鋼製セルの施工方法に
関するもので、砂防ダムあるいは土留擁壁等の築
造において利用する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a construction method for on-site assembly of steel cells, and is used in the construction of erosion control dams, retaining walls, and the like.
従来、砂防ダムの構築においては格子状の箱枠
内に詰め石し、これを主構造物として設置したい
わゆる枠ダムや、鉄筋コンクリート製の一体のダ
ムなどが知られている。
Conventionally, in the construction of sabo dams, so-called frame dams, in which stones are packed inside a lattice-shaped box frame and installed as the main structure, and integrated dams made of reinforced concrete are known.
しかし、前者の場合、近年充填材料としての玉
石、砕石等が高価であり入手困難となつてきたこ
と、後者の場合も施工に手間がかかり、施工費が
高くつくことなどから、出願人は先に特願昭59−
89727号のセルを用いた土留構造物を開発してい
る。 However, in the case of the former, cobblestones, crushed stones, etc. used as filling materials have become expensive and difficult to obtain in recent years, and in the case of the latter, construction is time-consuming and expensive, so the applicant has decided to proceed first. Special request for 1982-
We are developing an earth retaining structure using cell No. 89727.
上記構造物は第８図、第９図に示すように鋼製
セルＡを横方向に連設し、セルＡを貫通する連結
鉄筋２１のねじを利用して、連結鉄筋２１端部を
セルＡ内の形材２２に固定し、鋼製セルＡどうし
を連結するとともに土砂等の中詰材１３で安定さ
せるものである。また設置に関してはセルを近接
させるもののほか、セル間の間隔を広くとり、長
尺の連結鉄筋をスクリーン状に配してセル間にお
ける通水性を向上させたものがある。 As shown in FIGS. 8 and 9, the above structure has steel cells A connected in the horizontal direction, and screws of the connecting reinforcing bars 21 passing through the cells A are used to connect the ends of the connecting reinforcing bars 21 to the cells A. It is fixed to the inner section 22, connects the steel cells A to each other, and is stabilized with a filling material 13 such as earth and sand. Regarding installation, in addition to placing the cells close to each other, there are also methods in which the cells are spaced widely and long connecting reinforcing bars are arranged in a screen shape to improve water permeability between the cells.
ところで、上述のような鋼製セルを現場で組み
立てる場合、円弧状に形成された鋼製セグメント
複数枚をボルトナツトで連結し、管状に形成した
り、特願昭59−222385号に示されるように複数の
フープ筋と多数の鋼矢板により組立てる方法が採
られている。 By the way, when assembling the above-mentioned steel cells on site, it is possible to connect multiple arc-shaped steel segments with bolts and nuts to form a tubular shape, or as shown in Japanese Patent Application No. 59-222385. An assembly method using multiple hoop reinforcements and a large number of steel sheet piles is used.
しかし、上述の鋼製セルの組立て方法では、風
圧等の横力に対しては、トラロープその他の仮設
資材により転倒防止を図つているため、仮設工事
費が高くつき、施工性も悪い。またフープ筋の矢
板の組み合わせによる場合も、矢板の建込みや連
結に手間がかかり、施工性が悪い。
However, in the above-mentioned method of assembling steel cells, since the steel cells are prevented from falling due to lateral forces such as wind pressure using rope ropes or other temporary construction materials, the cost of temporary construction is high and the workability is poor. Also, when hoop-shaped sheet piles are combined, it takes time and effort to erect and connect the sheet piles, resulting in poor workability.
この発明は上述のような従来技術における問題
点に鑑み、仮設資材が少なく、かつ施工性に優れ
た鋼製セルの施工方法を提供することを目的とし
たものである。 In view of the problems in the prior art as described above, it is an object of the present invention to provide a method for constructing steel cells that requires less temporary construction materials and has excellent workability.
〔問題点を解決するための手段〕
この発明の鋼製セルの施工方法では、まず鋼製
セルＡの組立位置の中央に中央支持体２をアンカ
ー３で固定する。[Means for Solving the Problems] In the steel cell construction method of the present invention, first, the central support body 2 is fixed at the center of the assembly position of the steel cell A with an anchor 3.
次に中央支持体２の外側に鋼製セルＡを構成す
る鋼製セグメント１を建て込み、控え柱４により
中央支持体２と連結して、風圧等の横力により倒
れないように支持する。 Next, the steel segments 1 constituting the steel cell A are built outside the central support 2, and are connected to the central support 2 by retaining pillars 4 to support them so that they do not fall down due to lateral forces such as wind pressure.
同様に順次複数枚の鋼製セグメント１を建て込
んで、鋼製セグメント１どうしを連結することに
より鋼製セルＡが組み立てられる。 Similarly, a steel cell A is assembled by sequentially building a plurality of steel segments 1 and connecting the steel segments 1 to each other.
中央支持体２はリング状の金物等として形成さ
れるが、アンカー３で固定し、鋼製セグメント１
を支持できるものであれば、円盤状のもの、多角
形状のもの等、特に形状は問わない。 The central support body 2 is formed as a ring-shaped metal object, etc., and is fixed with an anchor 3, and is attached to a steel segment 1.
The shape is not particularly limited, such as a disc-shaped one, a polygonal one, etc., as long as it can support the .
次に、図示した実施例について説明する。 Next, the illustrated embodiment will be described.
第１図〜第６図はこの発明による施工手順の一
例を示したもので、まずリング状の中央支持体２
の下端フランジ部６をアンカー３を打ち込んで固
定する。次にクレーン等により、1/4円弧状の鋼
製セグメント１を建て込み、二本の控え柱４で中
央支持体２と連結し、転倒しないようにする（第
１図、第２図参照）。なお、図中８は中央支持体
２に取り付けた接合プレート、９は鋼製セグメン
ト１の内側面に取り付けた接合プレートであり、
控え柱４の端部をボルト、ナツト等により固定す
ることができる。 1 to 6 show an example of the construction procedure according to the present invention. First, a ring-shaped central support 2
The anchor 3 is driven into the lower end flange portion 6 of the flange portion 6 to fix it. Next, use a crane or the like to erect a 1/4 arc-shaped steel segment 1, and connect it to the central support 2 with two braces 4 to prevent it from falling over (see Figures 1 and 2). . In addition, in the figure, 8 is a joint plate attached to the central support 2, 9 is a joint plate attached to the inner surface of the steel segment 1,
The ends of the retaining posts 4 can be fixed with bolts, nuts, or the like.
同様に合計４枚の鋼製セグメント１を建て込
み、中央支持体２と連結して控え柱４で支持させ
るとともに、鋼製セグメント１どうしを接合して
円筒状の鋼製セルＡを形成する（第３図、第４図
参照）。なお、鋼製セグメント１どうしをボルト、
ナツトで接合する場合は、端部を重ね合わせる
か、あるいは端部に接合フランジを設けるなどし
て接合する。 Similarly, a total of four steel segments 1 are erected, connected to the central support 2 and supported by the buttresses 4, and the steel segments 1 are joined together to form a cylindrical steel cell A ( (See Figures 3 and 4). In addition, the steel segments 1 are connected with bolts,
When joining with a nut, the ends are overlapped or a joining flange is provided at the end.
また、この実施例では、さらにリング状の中央
支持体２と、組み立てられた鋼製セルＡの側壁下
端を放射状に配した鉄筋１０で連結し、その上に
ワイヤーメツシユあるいは金網１１を載せ、さら
に防水性の可撓性シート１２を被せて底版を構成
し、その上に土砂等の中詰材１３を充填する（第
５図、第６図参照）。なお、底版部分にはコンク
リートあるいはモルタル等を打設しても良く、こ
のように中央支持体２を利用した放射状の鉄筋１
０等を組み合わせて底版を形成することにより、
鋼製セルＡを洗掘等による変形に追随させ、中詰
材１３の流出等も防止できる。 Furthermore, in this embodiment, the ring-shaped central support 2 and the lower end of the side wall of the assembled steel cell A are connected by radially arranged reinforcing bars 10, and a wire mesh or wire mesh 11 is placed on top of the reinforcing bars 10. Furthermore, a waterproof flexible sheet 12 is covered to form a bottom plate, and a filling material 13 such as earth and sand is filled thereon (see FIGS. 5 and 6). In addition, concrete or mortar may be placed in the bottom plate part, and in this way, radial reinforcing bars 1 using the central support 2
By combining 0 etc. to form the bottom plate,
The steel cell A can be made to follow deformation due to scouring, etc., and the filling material 13 can also be prevented from flowing out.
第７図はリング状の中央支持体２の一例を示し
たもので、リング部５とフランジ部７および控え
柱４を固定するための垂直な接合プレート８とか
らなる。リング部５には多数の鉄筋挿通穴６が穿
設されており、鉄筋１０の端部にねじを形成し、
ナツトで固定できるようになつている。なお、鉄
筋１０として異形ねじ鉄筋を用いてもよい。フラ
ンジ部７は中央支持体２をアンカー３で固定する
ためのものであり、所要位置にアンカー３を通す
ための挿通穴を設けておく。 FIG. 7 shows an example of a ring-shaped central support 2, which is composed of a ring portion 5, a flange portion 7, and a vertical joint plate 8 for fixing the brace 4. As shown in FIG. A large number of reinforcing bar insertion holes 6 are bored in the ring part 5, and threads are formed at the ends of the reinforcing bars 10.
It can be fixed with a nut. Note that a deformed threaded reinforcing bar may be used as the reinforcing bar 10. The flange portion 7 is for fixing the central support body 2 with the anchor 3, and an insertion hole for passing the anchor 3 is provided at a required position.
〔発明の効果〕
アンカーで固定した中央支持体と鋼製セグメ
ントを控え柱で連結して支持するので、風等の
横力に対しても安定した状態で組立てを行なう
ことができる。[Effects of the Invention] Since the central support fixed by anchors and the steel segments are connected and supported by the buttresses, assembly can be carried out in a stable state even against lateral forces such as wind.
中央支持体および控え柱以外の仮設資材がほ
とんど不要であり、鋼製セグメント建込みに際
しては控え柱を取り付けるだけの簡単な作業と
なるため、施工性が良く、工期短縮、工費低減
が図れる。 Almost no temporary materials other than the central support and buttress pillars are required, and when erecting the steel segments, the work is as simple as attaching the restraint pillars, making it easy to construct, shortening the construction period and reducing construction costs.
中央支持体は施工後も鉄筋等で鋼製セルと連
結しておくことにより、安定したセル構造物が
得られる。 By connecting the central support to the steel cells with reinforcing bars or the like even after construction, a stable cell structure can be obtained.
構築されるセル内には一般に安価な土砂（土
石）が充填されるため、従来の枠ダム類のよう
に全断面砕石類によるものに比べ、経済的であ
る。 Since the cells to be constructed are generally filled with inexpensive earth and sand (soil and stones), they are more economical than conventional frame dams that are made of crushed stone throughout their cross section.
第１図、第３図、第５図は施工手順を示す縦断
面図、第２図、第４図、第６図はそれぞれ第１
図、第３図、第５図の横断面図、第７図は中央支
持体の一例を示す斜視図、第８図は鋼製セルを用
いた土留構造物の一例を示す平面図、第９図はそ
の正面図である。
Ａ……鋼製セル、１……鋼製セグメント、２…
…中央支持体、３……アンカー、４……控え柱、
５……リング部、６……鉄筋挿通穴、７……フラ
ンジ部、８，９……接合プレート、１０……鉄
筋、１１……金網、１２……可撓性シート、１３
……中詰材、２１……連結鉄筋、２２……形材。
Figures 1, 3, and 5 are longitudinal sectional views showing the construction procedure, and Figures 2, 4, and 6 are
7 is a perspective view showing an example of a central support, FIG. 8 is a plan view showing an example of an earth retaining structure using steel cells, and FIG. 9 is a cross-sectional view of FIG. The figure is its front view. A...Steel cell, 1...Steel segment, 2...
... central support, 3 ... anchor, 4 ... buttress pillar,
5...Ring part, 6...Reinforcing bar insertion hole, 7...Flange part, 8, 9...Joining plate, 10...Reinforcing bar, 11...Wire mesh, 12...Flexible sheet, 13
...Filling material, 21...Connection reinforcing bar, 22...Shape material.
Claims (1)
カーで固定し、該中央支持体の外側に鋼製セルを
構成する鋼製セグメントを建て込み、控え柱によ
り中央支持体と連結して、鋼製セグメントを支持
し、順次複数枚の鋼製セグメントを建て込んで鋼
製セグメントどうしを連結することにより鋼製セ
ルを組み立てることを特徴とする鋼製セルの施工
方法。 ２ 中央支持体はリング状である特許請求の範囲
第１項記載の鋼製セルの施工方法。[Claims] 1. A central support is fixed at the center of the steel cell assembly position with an anchor, steel segments constituting the steel cell are built outside the central support, and the central support is secured by a buttress. 1. A method of constructing a steel cell, characterized by assembling a steel cell by connecting the steel segments to each other, supporting the steel segments, sequentially erecting a plurality of steel segments, and connecting the steel segments to each other. 2. The method for constructing a steel cell according to claim 1, wherein the central support is ring-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13538585A JPS61294021A (en) | 1985-06-21 | 1985-06-21 | Construction of steel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13538585A JPS61294021A (en) | 1985-06-21 | 1985-06-21 | Construction of steel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61294021A JPS61294021A (en) | 1986-12-24 |
| JPH0346607B2 true JPH0346607B2 (en) | 1991-07-16 |
Family
ID=15150467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13538585A Granted JPS61294021A (en) | 1985-06-21 | 1985-06-21 | Construction of steel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61294021A (en) |
-
1985
- 1985-06-21 JP JP13538585A patent/JPS61294021A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61294021A (en) | 1986-12-24 |
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