JPS63313676A - Manufacture of square steel pipe sheet pipe - Google Patents
Manufacture of square steel pipe sheet pipeInfo
- Publication number
- JPS63313676A JPS63313676A JP14946287A JP14946287A JPS63313676A JP S63313676 A JPS63313676 A JP S63313676A JP 14946287 A JP14946287 A JP 14946287A JP 14946287 A JP14946287 A JP 14946287A JP S63313676 A JPS63313676 A JP S63313676A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- square steel
- pipe sheet
- welded
- joints
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 116
- 239000010959 steel Substances 0.000 title claims abstract description 116
- 238000004519 manufacturing process Methods 0.000 title claims description 22
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000011324 bead Substances 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は土木、建築および海洋構造物築造等の分野に用
いられる角鋼管矢板に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to square steel pipe sheet piles used in fields such as civil engineering, architecture, and construction of marine structures.
（従来の技術）
土木、建築および海洋構遺物等の諸分野において、土留
、基礎、壁体、井筒および連続地中壁等の構造用部材と
して各種の鋼矢板が多量に使用されている。特に大きな
土圧や水圧が加わるような場所においては第７図に示す
ような丸鋼管矢板１ａ、ｌｂや第８図に示すような鋼板
を溶接した角鋼管矢板２（特開昭５５−６８９２１号公
報）が採用されている。(Prior Art) In various fields such as civil engineering, architecture, and marine structures, various steel sheet piles are used in large quantities as structural members for earth retaining, foundations, walls, wells, continuous underground walls, and the like. Particularly in places where large earth pressure or water pressure is applied, round steel pipe sheet piles 1a and lb as shown in Fig. 7 or square steel pipe sheet piles 2 with welded steel plates as shown in Fig. 8 (Japanese Patent Laid-Open No. 55-68921 Public gazette) has been adopted.
ところで、前記丸鋼管矢板１ａ、ｌｂは継手に強度上の
問題があり、リングビームのような巨大な補強材が必要
になるなど経済的な課題を有し、また、前記角鋼管矢板
２はフランジやウェブおよび継手をすべて溶接せねばな
らないのでコスト高になり、また構造上完全な溶接が困
難であるため強度的に問題が生じやすいと云う問題が残
っている。By the way, the round steel pipe sheet piles 1a and lb have strength problems in their joints and have economical problems such as the need for huge reinforcing materials such as ring beams, and the square steel pipe sheet piles 2 have problems with the flange. However, since all the webs, webs, and joints have to be welded, the cost is high, and since complete welding is difficult due to the structure, problems remain in terms of strength.
そこで、本発明者等は第９図に示すように丸鋼管をロー
ル成形するかもしくは平鋼板をプレス成形してなる角鋼
管３の角部４ａ〜４ｄに雌雄同一の双腕継手５ａ〜５ｄ
を溶接接合した角鋼管矢板６を特願昭６１−９２６５７
号において提案した。Therefore, as shown in FIG. 9, the present inventors installed double-arm joints 5a to 5d, which are identical in male and female, to corners 4a to 4d of a square steel pipe 3 made by roll forming a round steel pipe or press forming a flat steel plate.
Patent application No. 61-92657 for square steel pipe sheet piles 6 welded together.
proposed in the issue.
角鋼管矢板６は製造が容易で、サイズや肉厚などを自由
に変更でき設計の自由度が大きく、その上物理的な特性
が優れているので、大きな土圧や水圧がかかる井筒基礎
、大形セル、護岸等に用いることが可能である。Square steel pipe sheet piles 6 are easy to manufacture, and the size and wall thickness can be changed freely, allowing for a large degree of freedom in design. Furthermore, they have excellent physical properties, so they can be used for well foundations, which are subject to large earth pressures and water pressures. It can be used for shaped cells, seawalls, etc.
（発明が解決しようとする問題点）
本発明者等は前記角鋼管矢板６を用いて工場用の大形地
下ピットにかかる連続地中壁や大形化学装置の基礎井筒
を経済的に建設することに成功したが、さらに土木建築
分野における構造物が多様化するにつれて、角鋼管矢板
に対する寸法即ち断面積、肉厚、管長および品種別数量
に対する要求も多様化し、しかもそれぞれが最経済設計
を満足することを要望されるようになった。(Problems to be Solved by the Invention) The present inventors use the square steel pipe sheet piles 6 to economically construct continuous underground walls for large underground pits for factories and foundation wells for large chemical equipment. However, as structures in the civil engineering and construction field become more diverse, the requirements for the dimensions of square steel pipe sheet piles, that is, the cross-sectional area, wall thickness, pipe length, and quantity by type, also diversify, and each of them has to satisfy the most economical design. It has become necessary to do so.
前述のような要求に対し、従来の鋼管矢板では製造技術
的にもまた物理的強度の面でも対応できないと云う課題
が生じた。A problem has arisen in that conventional steel pipe sheet piles cannot meet the above requirements in terms of manufacturing technology and physical strength.
本発明は大きな土圧や水圧に耐え、しかも施工も容易で
構造的に信頼性の高い角鋼管矢板の製造方法を提供する
ことを目的とし、他の目的は構造物の構成要件に応じ常
に最経済的な設計を可能とする角鋼管矢板の製造方法を
提供することにある。The purpose of the present invention is to provide a method for manufacturing square steel pipe sheet piles that can withstand large earth pressure and water pressure, is easy to construct, and has high structural reliability. The object of the present invention is to provide a method for manufacturing square steel pipe sheet piles that enables economical design.
（問題点を解決するための手段）
本発明は、スパイラル溶接鋼管の内外面のうち少なくと
も外面のビードを除去し成型加工して角鋼管本体となし
、該角鋼管本体角部のフランジ延長方向に沿って継手を
溶着することを特徴とする角鋼管矢板の製造方法である
。(Means for Solving the Problems) The present invention provides a rectangular steel pipe main body by removing and molding beads on at least the outer surface of the inner and outer surfaces of a spiral welded steel pipe. This is a method for manufacturing square steel pipe sheet piles, characterized by welding joints along the sides.
（作 用）
本発明の角鋼管矢板の製造方法は、角鋼管本体にスパイ
ラル溶接鋼管を成型加工して角鋼管本体とするため、肉
厚、直径、長さについて寸法上の自由度が大きく、最経
済設計が可能である。また、用途に応じて角鋼管本体を
断面が正方形、長方形あるいは台形など自由に成型でき
るので経済設計ができる。(Function) The method for manufacturing a square steel pipe sheet pile of the present invention forms a square steel pipe body by forming a spiral welded steel pipe on a square steel pipe body, so there is a large degree of dimensional freedom regarding wall thickness, diameter, and length. The most economical design is possible. In addition, the square steel tube body can be freely shaped to have a square, rectangular, or trapezoidal cross section depending on the application, allowing for economical design.
さらに、本発明の角鋼管矢板の製造方法はフランジの角
部に継手を溶着するので製造が容易で、また引張や圧縮
などの作用力に対して大きな耐力を有するものが製造で
きる。次に、本発明では継手を角鋼管本体の任意の角部
に任意数溶着することが可能なので、用途に応じた角鋼
管矢板とすることができる。Furthermore, since the method for manufacturing square steel pipe sheet piles of the present invention welds the joints to the corners of the flanges, it is easy to manufacture, and it is possible to manufacture square steel pipe sheet piles that have high resistance to acting forces such as tension and compression. Next, in the present invention, since it is possible to weld any number of joints to any corner of the square steel pipe body, it is possible to form a square steel pipe sheet pile according to the purpose.
本発明において継手として直線型鋼矢板の半截体を用い
た場合は、継手が単一種であるため製造コストが安く、
しかも水密性に優れかつ嵌合強度の高い角鋼管矢板が得
られるので信頼性の高い設計を行うことが可能になる。In the present invention, when half-sections of straight steel sheet piles are used as joints, manufacturing costs are low because the joints are of a single type.
Moreover, since square steel pipe sheet piles with excellent watertightness and high fitting strength can be obtained, highly reliable designs can be made.
さらに、角鋼管矢板は必要に応じて縦方向に何段も継い
で大深度用として使用するが、本発明法による角鋼管矢
板は構造がシンプルなので縦方向の接続も極めて容易で
あり、必要に応じての腹おこし材などの取付けや壁面施
工などに全（支障が無い。また、構造的に複数の角鋼管
矢板を接続溶接することによって平行フランジボックス
パネルとすることも可能なので、工程を短縮することも
容易である。また、寸法的に大形化しても形状が全体と
して平坦なために、荷姿が良く運搬や保管が容易で、物
流コストが低順ですむ。Furthermore, square steel pipe sheet piles are used for deep-depth applications by connecting them vertically in multiple stages as necessary, but the square steel pipe sheet piles produced by the method of the present invention have a simple structure, so vertical connections are extremely easy, and it is possible to There is no problem in attaching raised materials and wall construction according to the requirements.Also, it is possible to make a parallel flange box panel by connecting and welding multiple square steel pipe sheet piles, which shortens the process. In addition, even if the size is increased, the overall shape is flat, so the packaging looks good and is easy to transport and store, resulting in low logistics costs.
（実施例）
第１０図、第１１図はスパイラル鋼管７の概略正面図及
び側面図であって、スパイラル鋼管７の内外面には溶接
のビード８が残っている。そこでビード８を機械研削し
て第１２図の正面図に示すような鋼管９としたのち、周
知の成型手段たとえばロールフォーミング手段によって
第１図に示すような角鋼管本体１０とし、その両端角部
に雌継手１１ａ、２１ｂ、ｍ継手１２ａ、１２ｂを溶着
して角鋼管矢板１３を製作する。ビードを研削するのは
内外面とも行なうのが、角鋼管への加工が容易となり、
理想的である。しかし、コストの面から第１２図のごと
く外面を研削すれば目的を達することができる。(Example) FIGS. 10 and 11 are a schematic front view and side view of a spiral steel pipe 7, in which weld beads 8 remain on the inner and outer surfaces of the spiral steel pipe 7. Therefore, the bead 8 is mechanically ground to form a steel pipe 9 as shown in the front view of FIG. 12, and then a square steel pipe body 10 as shown in FIG. Female joints 11a, 21b and m joints 12a, 12b are welded to the square steel pipe sheet piles 13. Grinding the bead on both the inner and outer surfaces makes it easier to process into square steel pipes.
ideal. However, in view of cost, the purpose can be achieved by grinding the outer surface as shown in FIG.
雌、１手１１ ａ、１ ｌ ｂはシームレスパイプ１４
ａ、１４ｂに嵌合用スリット１５ａ、１５ｂを削設して
嵌合部１６ａ、１６ｂを形成し、嵌合部１６ａ、１６ｂ
に平鋼板からなるアーム１７ａ。Female, 1 hand 11 a, 1 l b are seamless pipes 14
Fitting slits 15a, 15b are cut in a, 14b to form fitting parts 16a, 16b, and fitting parts 16a, 16b are formed.
and an arm 17a made of a flat steel plate.
１７ｂを溶接して構成したものである。17b by welding.
また、雄継手１２ａ、１２ｂは丸棒鋼１８ａ。Moreover, the male joints 12a and 12b are made of round steel bars 18a.
１８ｂに平鋼板１９ａ、１９ｂを溶接して構成する。丸
棒１ｉｊＩ１８ａ、１８ｂにかえて角棒鋼を採用しても
よいが、後工程で継手部にコンクリートを充填する場合
には丸棒鋼１８ａ、１８ｂの方が適している。It is constructed by welding flat steel plates 19a and 19b to 18b. Square steel bars may be used instead of the round bars 1ijI18a, 18b, but the round steel bars 18a, 18b are more suitable when filling the joint with concrete in a later process.
而してスパイラル鋼管７は前述のように加工技術的に肉
厚や直径および管長など寸法の自由度が大きいために角
鋼管本体の径の大小にかかわらず製造が容易で、また径
が８００〜１０１００Ｏを越えるような大耐力を要求す
る用途に応じても大口径の鋼管をつくり、ついで成形加
工することにより最適な寸法の角鋼管を経済的に供給で
きる。As mentioned above, the spiral steel pipe 7 has a large degree of freedom in dimensions such as wall thickness, diameter, and pipe length due to its processing technology, so it is easy to manufacture regardless of the diameter of the square steel pipe body. Even for applications that require a large yield strength exceeding 10,100 O, square steel pipes of optimal dimensions can be economically supplied by manufacturing large-diameter steel pipes and then forming them.
第２図は、雌継手１１ａ、ｌｌｂは第１図と同様である
が、雄継手２０ａ、２０ｂにコンクリート充填に適した
鋼管２１ａ、２１ｂを使用した実施例にかかる角鋼管矢
板２２を示す。鋼管２１ａ。FIG. 2 shows a square steel pipe sheet pile 22 according to an embodiment in which the female joints 11a and llb are the same as those in FIG. 1, but the male joints 20a and 20b are made of steel pipes 21a and 21b suitable for concrete filling. Steel pipe 21a.
２１ｂとしては一般構造用炭素鋼鋼管（ＪＩＳＧ ３４
４４）などの構造用鋼管や圧力配管用炭素鋼鋼管（ＪＩ
Ｓ Ｇ ３４５４）などの配管用鋼管のほか、強度上の
必要がある場合は油井用継目無鋼管（ＪＩＳ Ｇ３４３
９ ）のような特殊用途鋼管及び合金管などを適宜に採
用する。また、アーム２３ａ、２３ｂ。21b is carbon steel pipe for general structure (JISG 34
44) and other structural steel pipes and carbon steel pipes for pressure piping (JI
In addition to steel pipes for piping such as S G 3454), seamless steel pipes for oil wells (JIS G343) are used when strength is required.
9) Adopt special purpose steel pipes and alloy pipes as appropriate. Also, arms 23a and 23b.
２４ａ、２４ｂ等は強度や防食等の設備条件に応じて最
適の鋼板を選定する。For 24a, 24b, etc., optimal steel plates are selected depending on equipment conditions such as strength and corrosion resistance.
以上詳細に説明したようにスパイラル溶接鋼管の少なく
とも外面のビードを除去し、ついで矢板用の角鋼管とし
て成型加工することについての先行技術は無く、また本
来スリットはおろか疵一つ無いことが要件である継目無
鋼管にスリットを入れて鋼矢板用の雌継手をつくり、角
鋼管矢板の継手として利用する技術は本発明者等の新知
見にかかることで、本発明者等の試験では、シームレス
パイプに嵌合部スリットを入れた嵌合部は拡開に対する
抵抗が大きく、従来のパイプ継手や型鋼継手に対し１．
５〜５倍の耐力があることが確認された。As explained in detail above, there is no prior art for removing at least the outer bead of a spiral welded steel pipe and then forming it into a square steel pipe for sheet piles, and it is originally a requirement that there be no slits or even a single flaw. The technology of creating a female joint for a steel sheet pile by making a slit in a certain seamless steel pipe and using it as a joint for a square steel pipe sheet pile depends on the new knowledge of the inventors, and in the tests of the inventors, The fitting part with a fitting part slit has a large resistance to expansion, and has 1.
It was confirmed that the yield strength was 5 to 5 times higher.
次に、第３図は第１図の角鋼管矢板１３の部分拡大図で
、角鋼管本体１０の角部１０ａにおいてフランジ１０ｂ
を通る軸線Ｘ−Ｘとアーム１７ａの軸線を一致させて溶
着した状況を示すもので、１７ａ＋ はアーム１７ａの
溶着端面で、２５は溶着金属である。この溶着にあたっ
て、角部１０ａの曲率半径をフランジ１０ｂの厚さｔ、
の１．０超５．０倍未満の範囲に成形すると溶着が円滑
で、また溶接強度も良好である。即ち曲率半径を１．０
倍以下とすることは成形に無理が生ずるだけでなく溶は
込みが不充分となり品質的に問題が生じ易く、また５、
０倍以上であると溶着金属の量も多（なり経済的に不利
益であって、溶接のための作業時間も長くなりコスト高
となる。またフランジｔａｂの板厚ｔ１とアーム１７ａ
の板厚Ｌ２は略同−であることが望ましいが、±０〜２
０％の範囲であれば目的に対し許容される範囲である。Next, FIG. 3 is a partially enlarged view of the square steel pipe sheet pile 13 shown in FIG.
This figure shows a situation in which the axis XX passing through the arm 17a is aligned with the axis of the arm 17a to be welded. 17a+ is the welded end surface of the arm 17a, and 25 is the welded metal. In this welding, the radius of curvature of the corner 10a is set to the thickness t of the flange 10b,
Molding in a range of more than 1.0 and less than 5.0 times will result in smooth welding and good welding strength. That is, the radius of curvature is 1.0
If it is less than twice as much, not only will it be difficult to form, but the melt penetration will be insufficient, which tends to cause quality problems, and 5.
If it is 0 times or more, the amount of weld metal will be large (which is economically disadvantageous, and the work time for welding will be longer, resulting in higher costs. Also, the plate thickness t1 of the flange tab and the arm 17a)
It is desirable that the plate thickness L2 is approximately the same, but ±0 to 2
A range of 0% is an acceptable range for the purpose.
さらに本発明法による角鋼管矢板の他の例について第４
図〜第６図に従って説明する。第４図の角鋼管矢板２６
はそれぞれ同一のフランジの延長方向に沿って延びる継
手２７ａ、２７ｂ相互および継手２８ａ、２８ｂ相互は
同じ長さであるが、継手２７ａと２８ｂとはアームの長
さを異にした例で、カーブした連続地中壁等の構築に用
いられる。第５図は一方のフランジ側にのみ継手を備え
た角鋼管矢板２９ａ、２９ｂを連結した例で、セル等の
構造体に用いられる例を示す。また第６図はそれぞれ片
側にのみ継手３０ａ、３０ｂおよび３１ａ、３１ｂを有
する角鋼管矢板３２ａ、３２ｂを平鋼板３３ａ、３３ｂ
で連結した平行フランジボックスバイル３４の例であっ
て、長大な地中壁等の構築部材として効率的に採用する
ことが可能である。Furthermore, Section 4 describes other examples of square steel pipe sheet piles produced by the method of the present invention.
This will be explained according to FIGS. Square steel pipe sheet pile 26 in Figure 4
are examples in which the joints 27a and 27b and the joints 28a and 28b, which extend along the same flange extension direction, have the same length, but the joints 27a and 28b have different arm lengths, and are curved. Used for constructing continuous underground walls, etc. FIG. 5 shows an example in which square steel pipe sheet piles 29a and 29b having a joint on only one flange side are connected, and is used in a structure such as a cell. In addition, FIG. 6 shows square steel pipe sheet piles 32a, 32b having joints 30a, 30b and 31a, 31b only on one side, respectively, and flat steel sheets 33a, 33b.
This is an example of a parallel flange box pile 34 connected with the flange, and can be efficiently employed as a construction member for a long underground wall or the like.
（発明の効果）
本発明の角鋼管矢板の製造方法は設計の自由度が大きい
ので最経済設計が可能であり、また角鋼管本体の径につ
いてはどの様な寸法のものにも対応でき、特に８００〜
１０１００Ｏ＋をこえるような大寸法の製造に適してい
る。末法により製造した角鋼管矢板は構造的な強度に優
れ、しかも品質的に信頼性が高く、そのうえ施工及び運
搬が容易であり、製造コストも性能に比して安価である
ため、経済的価値は極めて著しい。(Effects of the Invention) The method for manufacturing square steel pipe sheet piles of the present invention has a large degree of freedom in design, so it is possible to achieve the most economical design, and the diameter of the square steel pipe body can be adapted to any size. 800～
Suitable for manufacturing large sizes exceeding 10100O+. The square steel pipe sheet piles manufactured using this method have excellent structural strength, are highly reliable in terms of quality, are easy to construct and transport, and have low manufacturing costs compared to their performance, so their economic value is low. Extremely remarkable.
第１図、第２図は本発明法により製造した角鋼管矢板の
例を示す概略平面図、
第３図は角部におけるアーム部の溶着状況を示す部分拡
大図、
第４図は本発明法により製造した角鋼管矢板の概略平面
図、
第５図、第６図は本発明法により製造したパネル型の角
鋼管矢板の概略平面図、
第７図は従来の丸鋼管矢板の概略平面図、第８図は周知
の角鋼管矢板の平面図、
第９図は雌雄同一の嵌合部を有する継手を備えた角鋼管
矢板の平面図、
第１Ｏ図、第１１図はスパイラル鋼管の概略正面図及び
側面図、
第１２図は表面ビード研削後の鋼管の正面図である。
ｌａ、ｌｂ・・・丸鋼管矢板、２・・・角鋼管矢板、３
・・・角鋼管、４ａ〜４ｄ・・・角部、５ａ〜５ｄ・・
・双腕継手、６・・・角鋼管矢板、７・・・スパイラル
鋼管、８・・・ビード、９・・・鋼管、ｌＯ・・・角鋼
管本体、ｌｏａ・・・角部、１０ｂ・・・フランジ、ｌ
ｌａ、ｌｌｂ・・・雌継手、１２ａ、１２ｂ・・・雄継
手、１３・・・角鋼管矢板、１４ａ、１４ｂ−・・シー
ムレスパイプ、１５ａ。
１５ｂ・・・嵌合用スリット、１６ａ、１６ｂ・・・嵌
合部、１１ａ、１７ｂ−・・アーム、１７ａ＋−溶着端
面、１８ａ、１８ｂ・・・丸棒鋼、１９ａ、１９ｂ−平
鋼板、２０ａ、２０ｂ・・・雄継手、２１ａ、２１ｂ・
・・鋼管、２２・・・角鋼管矢板、２３ａ、２３ｂ。
２４ａ、２４ｂ・・・アーム、２５ ・・・溶着金属、
２６・・・角鋼管矢板、２７ａ、２７ｂ、２８ａ、２８
ｂ・・・継手、２９ａ、２９ｂ・・・角鋼管矢板、３０
ａ。
３０ｂ、３１ａ、３１ｂ・・・継手、３２ａ、３２ｂ・
・・角鋼管矢板、３３ａ、３３ｂ・・・平鋼板、３４・
・・平行フランジボックスパイル。
代理人 弁理士 秋 沢 政 光
他１名
オ」図
７２図
注５図
才４図
戸５図
弁６図
ボッ回
７８図
″＋ｑ図Figures 1 and 2 are schematic plan views showing examples of square steel pipe sheet piles manufactured by the method of the present invention, Figure 3 is a partially enlarged view showing the state of welding of arm portions at corners, and Figure 4 is a method of the present invention. 5 and 6 are schematic plan views of panel-type square steel pipe sheet piles manufactured by the method of the present invention. FIG. 7 is a schematic plan view of a conventional round steel pipe sheet pile. Fig. 8 is a plan view of a well-known square steel pipe sheet pile, Fig. 9 is a plan view of a square steel pipe sheet pile equipped with a joint having the same male and female fitting parts, and Figs. 1O and 11 are schematic front views of spiral steel pipes. and a side view, and FIG. 12 is a front view of the steel pipe after surface bead grinding. la, lb...Round steel pipe sheet pile, 2...Square steel pipe sheet pile, 3
... Square steel pipe, 4a to 4d... Corner part, 5a to 5d...
・Double arm joint, 6... Square steel pipe sheet pile, 7... Spiral steel pipe, 8... Bead, 9... Steel pipe, lO... Square steel pipe body, loa... Corner, 10b...・Flange, l
la, llb...Female joint, 12a, 12b...Male joint, 13...Square steel pipe sheet pile, 14a, 14b--Seamless pipe, 15a. 15b... Fitting slit, 16a, 16b... Fitting portion, 11a, 17b... Arm, 17a + - welded end surface, 18a, 18b... Round steel bar, 19a, 19b - Flat steel plate, 20a, 20b・・・Male joint, 21a, 21b・
...Steel pipe, 22...Square steel pipe sheet pile, 23a, 23b. 24a, 24b...Arm, 25...Welded metal,
26... Square steel pipe sheet piles, 27a, 27b, 28a, 28
b...Joint, 29a, 29b...Square steel pipe sheet pile, 30
a. 30b, 31a, 31b...joint, 32a, 32b...
...Square steel pipe sheet piles, 33a, 33b...Flat steel plates, 34.
...Parallel flange box pile. Agent: Patent attorney Masaaki Aki, Masaaki Sawa, and 1 other person (Figure 72, note 5, figure 4, figure 5, figure 6, figure 6) figure 78'' + figure q
Claims (6)
面のビードを除去し成型加工して角鋼管本体となし、該
角鋼管本体角部のフランジ延長方向に沿って継手を溶着
することを特徴とする角鋼管矢板の製造方法。(1) Beads on at least the outer surface of the inner and outer surfaces of the spiral welded steel pipe are removed and formed into a square steel pipe body, and a joint is welded along the flange extension direction of the corner of the square steel pipe body. Method for manufacturing square steel pipe sheet piles.
ある特許請求の範囲第１項記載の角鋼管矢板の製造方法
。(2) The method for manufacturing a square steel pipe sheet pile according to claim 1, wherein the square steel pipe main body has a square, rectangular or trapezoidal cross section.
特許請求の範囲第１項記載の角鋼管矢板の製造方法。(3) The method for manufacturing square steel pipe sheet piles according to claim 1, wherein the joints are welded to both end corners of each flange.
請求の範囲第１項記載の角鋼管矢板の製造方法。(4) The method for manufacturing a square steel pipe sheet pile according to claim 1, wherein the joint is welded to both end corners of one flange.
特許請求の範囲第１項記載の角鋼管矢板の製造方法。(5) The method for manufacturing a square steel pipe sheet pile according to claim 1, wherein the joint is welded to one end corner of each flange.
囲第１項または第３項記載の角鋼管矢板の製造方法。(6) The method for manufacturing a square steel pipe sheet pile according to claim 1 or 3, wherein the joint is a half-section of a straight steel sheet pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14946287A JPS63313676A (en) | 1987-06-16 | 1987-06-16 | Manufacture of square steel pipe sheet pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14946287A JPS63313676A (en) | 1987-06-16 | 1987-06-16 | Manufacture of square steel pipe sheet pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63313676A true JPS63313676A (en) | 1988-12-21 |
| JPH0333064B2 JPH0333064B2 (en) | 1991-05-15 |
Family
ID=15475655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14946287A Granted JPS63313676A (en) | 1987-06-16 | 1987-06-16 | Manufacture of square steel pipe sheet pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63313676A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995030056A1 (en) * | 1994-04-29 | 1995-11-09 | Kuochung Chen | Tubular sheet piling and method for constructing a continuous underground wall by the piling |
| KR100862385B1 (en) | 2006-12-01 | 2008-10-13 | 김형구 | A square shape, wall structure using it and method for constructing thereof |
| CN108018853A (en) * | 2017-12-18 | 2018-05-11 | 华东交通大学 | The design method of U-shaped steel negative and positive lock-type steel pipe pile enclosing structure |
-
1987
- 1987-06-16 JP JP14946287A patent/JPS63313676A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995030056A1 (en) * | 1994-04-29 | 1995-11-09 | Kuochung Chen | Tubular sheet piling and method for constructing a continuous underground wall by the piling |
| KR100862385B1 (en) | 2006-12-01 | 2008-10-13 | 김형구 | A square shape, wall structure using it and method for constructing thereof |
| CN108018853A (en) * | 2017-12-18 | 2018-05-11 | 华东交通大学 | The design method of U-shaped steel negative and positive lock-type steel pipe pile enclosing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0333064B2 (en) | 1991-05-15 |
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