JP2019039154A - Steel sheet pile and method of manufacturing the same - Google Patents
Steel sheet pile and method of manufacturing the same Download PDFInfo
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Abstract
Description
本発明は、継手を本体の両側に備える鋼矢板及びその製造方法に関する。 The present invention relates to a steel sheet pile including joints on both sides of a main body and a method for manufacturing the steel sheet pile.
護岸構造や止水壁などの矢板壁構築には、例えば断面Ｕ形の鋼矢板が広く一般に用いられており、この断面Ｕ形の部分を本体として、本体の縦方向に沿う両側縁に継手が延設されている。本体は、断面Ｕ形に限らず、半円形など、両側縁を通る平面に対して片側へ迂回した形状を有することで、横荷重に耐える構造となっており、また迂回した凹部にオーガ装置を配置する空間を確保できる。
一般に、従来の鋼矢板の接合にあっては、地中に打ち込んだ矢板天端の法線方向前方の継手部に、新たに打ち込む矢板下端の法線方向後方の継手部を上方から挿通して行なわれる。この方式は特許文献１にも記載されている。なお、特許文献２に記載されるように、横方向から差し入れて回転させることで嵌め合わせ可能な継手構造を有する鋼矢板もある。すなわち、前者が縦入れであるのに対し、後者が横入れであるということができる。
特許文献１に記載されるように鋼矢板は、本体と継手とを接合して製作されるものがある。特許文献１に記載の鋼矢板にあっては、矢板本体の側縁部の端面と継手の基端部の端面とが接合される。
For the construction of sheet pile walls such as revetment structures and water blocking walls, for example, steel sheet piles with a U-shaped cross section are widely used, and joints are formed on both side edges along the longitudinal direction of the main body with this U-shaped section as the main body. It is extended. The main body is not limited to a U-shaped cross section, and has a shape that is detoured to one side with respect to a plane passing through both side edges, such as a semicircular shape. Space to arrange can be secured.
In general, in joining conventional steel sheet piles, insert the joint part at the rear of the normal direction of the lower end of the sheet pile to be newly inserted from above into the joint part in the normal direction of the top of the sheet pile driven into the ground. Done. This method is also described in Patent Document 1. In addition, as described in Patent Document 2, there is also a steel sheet pile having a joint structure that can be fitted by rotating from the lateral direction. That is, it can be said that the former is vertical insertion while the latter is horizontal insertion.
As described in Patent Document 1, some steel sheet piles are manufactured by joining a main body and a joint. In the steel sheet pile described in Patent Document 1, the end face of the side edge portion of the sheet pile main body and the end face of the base end portion of the joint are joined.
しかしながら、特許文献１に記載の鋼矢板のように、矢板本体の側縁部の端面と継手の基端部の端面の接合（溶接）は、素材の板厚程度の「接合しろ」しかなく、接合（溶接）の作業が難しく、歪み等が無い精度の良いものを製造することが難しい。製造できても、接合強度が低く接合部での破壊が懸念される。 However, like the steel sheet pile described in Patent Document 1, the joining (welding) of the end face of the side edge portion of the sheet pile body and the end face of the base end portion of the joint has only a “joining margin” that is about the thickness of the material, Joining (welding) is difficult, and it is difficult to manufacture a precision product without distortion. Even if it can be manufactured, the bonding strength is low, and there is a concern about destruction at the bonded portion.
本発明は以上の従来技術における問題に鑑みてなされたものであって、本体と継手とが接合されて構成される鋼矢板において、本体と継手との接合強度を向上することを課題とし、さらに製造性の良好な製造方法を提供することを課題とする。 The present invention has been made in view of the above problems in the prior art, and in a steel sheet pile configured by joining a main body and a joint, it is an object to improve the joint strength between the main body and the joint, and It is an object to provide a manufacturing method with good manufacturability.
以上の課題を解決するための請求項１記載の発明は、継手を本体の両側に備える鋼矢板であって、
前記継手の基端部が、前記本体の側縁部に沿って形成され、
前記継手の基端部の側面と、前記本体の側縁部の側面とが接合されている鋼矢板である。
Invention of Claim 1 for solving the above subject is a steel sheet pile provided with a joint on both sides of a main body,
The base end of the joint is formed along the side edge of the body;
It is a steel sheet pile in which the side surface of the base end portion of the joint and the side surface of the side edge portion of the main body are joined.
請求項２記載の発明は、前記本体の縦方向に沿う両側縁に継手が延設され、前記本体が当該両側縁を通る平面に対して片側へ迂回した形状を有し、
前記継手の一方は、前記本体から離れる横方向に延設された腕部と、当該腕部から前記本体の迂回方向に曲がり前記本体から離れる斜め方向に延設された第１壁部と、当該第１壁部から前記本体から離れる横方向に延設された第２壁部と、当該第２壁部から前記本体の迂回方向の逆方向に曲がり前記本体に近づく斜め方向へ延設された第３壁部とを有し、当該第１壁部と当該第２壁部と当該第３壁部とにより前記本体の縦方向に沿う嵌合溝を形成し、
前記継手の他方は、前記本体から離れる横方向に延設された腕部と、当該腕部から前記本体の迂回方向に曲がり前記本体に近づく斜め方向へ延設され、前記嵌合溝に側方から相対的に差し入れられて相対的に回転させられることで嵌合可能な形状の鉤状部とを有する請求項１に記載の鋼矢板である。
The invention according to claim 2 has a shape in which joints are extended to both side edges along the longitudinal direction of the main body, and the main body is detoured to one side with respect to a plane passing through the both side edges,
One of the joints includes an arm part extending in a lateral direction away from the main body, a first wall part extending from the arm part in a detour direction of the main body and extending in an oblique direction away from the main body, A second wall portion extending in a lateral direction away from the main body from the first wall portion, and a second wall portion extending in an oblique direction from the second wall portion in a direction opposite to the detour direction of the main body and approaching the main body. Three wall portions, and the first wall portion, the second wall portion and the third wall portion form a fitting groove along the longitudinal direction of the main body,
The other of the joints is an arm portion extending in a lateral direction away from the main body, and is bent in a detour direction of the main body from the arm portion and extending in an oblique direction approaching the main body, and laterally enters the fitting groove. It is a steel sheet pile of Claim 1 which has a hook-shaped part of the shape which can be fitted by being inserted relatively from and rotated relatively.
請求項３記載の発明は、前記本体の縦方向に沿う両側縁に継手が延設され、前記本体が当該両側縁を通る平面に対して片側へ迂回した形状を有し、
前記継手の一方は、前記本体から離れる横方向に延設された腕部と、当該腕部から前記本体の迂回方向の逆方向に曲がり前記本体から離れる斜め方向に延設された第１壁部と、当該第１壁部から前記本体から離れる横方向に延設された第２壁部と、当該第２壁部から前記本体の迂回方向に曲がり前記本体に近づく斜め方向へ延設された第３壁部とを有し、当該第１壁部と当該第２壁部と当該第３壁部とにより前記本体の縦方向に沿う嵌合溝を形成し、
前記継手の他方は、前記本体から離れる横方向に延設された腕部と、当該腕部から前記本体の迂回方向の逆方向に曲がり前記本体に近づく斜め方向へ延設され、前記嵌合溝に側方から相対的に差し入れられて相対的に回転させられることで嵌合可能な形状の鉤状部とを有する請求項１に記載の鋼矢板である。
The invention according to claim 3 has a shape in which joints are extended to both side edges along the longitudinal direction of the main body, and the main body is detoured to one side with respect to a plane passing through the both side edges,
One of the joints is an arm portion extending in a lateral direction away from the main body, and a first wall portion extending in an oblique direction away from the main body by bending in the opposite direction of the bypass direction of the main body from the arm portion. And a second wall portion extending in a lateral direction away from the main body from the first wall portion, and a second wall portion extending in an oblique direction from the second wall portion in a detour direction of the main body and approaching the main body. Three wall portions, and the first wall portion, the second wall portion and the third wall portion form a fitting groove along the longitudinal direction of the main body,
The other of the joints is an arm portion extending in a lateral direction away from the main body, and extends in an oblique direction from the arm portion in a direction opposite to the detour direction of the main body and approaching the main body, and the fitting groove It is a steel sheet pile of Claim 1 which has a hook-shaped part of the shape which can be fitted by being relatively inserted from the side and being rotated relatively.
請求項４記載の発明は、請求項１から請求項３のうちいずれか一に記載の鋼矢板であって、前記本体の長手方向に垂直な断面が半円状である半円鋼矢板を製造する方法において、
前記本体の２本分に相当する鋼管の外周面の所定位置に、鋼矢板２本分の継手の各基端部の側面を接合した後、当該鋼管を長手方向に切断して断面半円状に半割りし、前記所定位置を前記側縁部の側面に相当する位置とすることで、前記半円鋼矢板を２本分製造する鋼矢板の製造方法である。
Invention of Claim 4 is a steel sheet pile as described in any one of Claims 1-3, Comprising: The cross section perpendicular | vertical to the longitudinal direction of the said main body manufactures a semicircle steel sheet pile. In the way to
After joining the side surfaces of the base end portions of the joints of two steel sheet piles at predetermined positions on the outer peripheral surface of the steel pipe corresponding to two of the main bodies, the steel pipe is cut in the longitudinal direction and is semicircular in cross section It is a steel sheet pile manufacturing method for manufacturing the two semicircular steel sheet piles by making the predetermined position a position corresponding to the side surface of the side edge portion.
本発明によれば、本体と継手とが側面同士を合せて接合されているので、十分な接合面積をとることが容易であり、本体と継手との接合強度を向上することができる。 According to the present invention, since the main body and the joint are joined with the side surfaces aligned, it is easy to take a sufficient joining area, and the joining strength between the main body and the joint can be improved.
以下に本発明の一実施形態につき図面を参照して説明する。以下は本発明の一実施形態であって本発明を限定するものではない。 An embodiment of the present invention will be described below with reference to the drawings. The following is one embodiment of the present invention and does not limit the present invention.
〔製造方法〕
まず、図１を参照して本発明の一実施形態に係る製造方法につき説明する。本製造方法は、図１(d)に示すように、本体ｃ０１Ａ，ｃ０１Ｂの長手方向に垂直な断面が半円状である半円鋼矢板ｃ２０を２本、同時並行的に製造する方法である。
〔Production method〕
First, a manufacturing method according to an embodiment of the present invention will be described with reference to FIG. As shown in FIG. 1 (d), this manufacturing method is a method of manufacturing two semicircular steel sheet piles c20 having a semicircular cross section perpendicular to the longitudinal direction of the main bodies c01A and c01B in parallel. .
（素材準備）
図１(a)に示すように、素材として鋼管ｃ０１を１本、継手ｃ０２を２本、継手ｃ０３を２本使用する。継手は左右非対称の継手を例としており、継手ｃ０２と継手ｃ０３とで構造や長さが異なる。
継手ｃ０２の基端部ｃ０４は、曲部ｃ０５を介してそれより先端側の延設部ｃ０６に繋がっている。同様に継手ｃ０３の基端部ｃ０７も、曲部ｃ０８を介してそれより先端側の延設部ｃ０９に繋がっている。延設部ｃ０６，ｃ０９の形状は、継手の嵌合構造により異なる。図示例は、上述の横入れ式の嵌合構造の継手である。
(Material preparation)
As shown in FIG. 1 (a), one steel pipe c01, two joints c02, and two joints c03 are used as materials. The joint is an asymmetrical joint, and the structure and length of the joint c02 and the joint c03 are different.
The base end portion c04 of the joint c02 is connected to the extending portion c06 on the distal end side through the curved portion c05. Similarly, the base end portion c07 of the joint c03 is also connected to the extending portion c09 on the distal end side through the curved portion c08. The shapes of the extending portions c06 and c09 vary depending on the fitting structure of the joint. An example of illustration is a joint of the above-mentioned horizontal insertion type fitting structure.
（第１溶接工程）
図１(b)に示すように、鋼管ｃ０１の外周面の所定位置に、２本の継手ｃ０２及び２本の継手ｃ０３の各基端部ｃ０４，ｃ０７の側面を合せ、溶接により接合する。ここで、所定位置は、次の通りである。
すなわち、図１(b)に示すように、鋼管ｃ０１を介して互いに反対側に２本の継手ｃ０２，ｃ０２と、２本の継手ｃ０３，ｃ０３とを配置する。本製造方法では同種の継手を同じ側に配置する。２本の継手ｃ０２，ｃ０２同士及び２本の継手ｃ０３，ｃ０３同士は、鋼管ｃ０１の中心ｃ１０を通る切断予定面ｃ１１を挟んで同じ面を向い合せに配置し、切断予定面ｃ１１の位置で鋼管ｃ０１が削られる切断しろ程度の間隔を空けて離す。ここで、基端部ｃ０４からの延設部ｃ０６の延出方向と、基端部ｃ０７からの延設部ｃ０９の延出方向とは、鋼管ｃ０１の半径方向外方であり、かつ、互いに１８０度反対方向としたい。かかる配置において、基端部ｃ０４（ｃ０７）の側面が鋼管ｃ０１の外周面に着座するように予め曲部ｃ０５（ｃ０８）を形成しておく。
溶接は、対向配置された２本の継手ｃ０２，ｃ０２（ｃ０３，ｃ０３）の外側から行う。切断予定面ｃ１１側は狭いためである。このときできる溶接部ｃ１２を図示する。
(First welding process)
As shown in FIG. 1B, the side surfaces of the base ends c04 and c07 of the two joints c02 and the two joints c03 are aligned with predetermined positions on the outer peripheral surface of the steel pipe c01, and are joined by welding. Here, the predetermined positions are as follows.
That is, as shown in FIG. 1 (b), two joints c02 and c02 and two joints c03 and c03 are arranged on the opposite sides via the steel pipe c01. In this manufacturing method, the same kind of joints are arranged on the same side. The two joints c02 and c02 and the two joints c03 and c03 are arranged so that the same surface faces each other across the planned cutting surface c11 passing through the center c10 of the steel pipe c01, and the steel pipe is positioned at the planned cutting surface c11. The c01 is separated with an interval enough to cut. Here, the extending direction of the extending part c06 from the base end part c04 and the extending direction of the extending part c09 from the base end part c07 are outward in the radial direction of the steel pipe c01 and 180 degrees from each other. I want the opposite direction. In this arrangement, the curved portion c05 (c08) is formed in advance so that the side surface of the base end portion c04 (c07) is seated on the outer peripheral surface of the steel pipe c01.
Welding is performed from the outside of the two joints c02 and c02 (c03 and c03) arranged opposite to each other. This is because the planned cutting plane c11 side is narrow. A weld c12 that can be formed at this time is illustrated.
（切断工程）
次に、図１(c)に示すように鋼管ｃ０１の切断予定面ｃ１１に交わる部位を切断する。切断方法としては、ガス切断、プラズマ切断、レーザー切断等の溶断法を適用し、鋼管ｃ０１の内側から切断するとよい。但し、２本の継手ｃ０２，ｃ０２（ｃ０３，ｃ０３）の間に、ロングチップ等を利用してトーチが入れば鋼管ｃ０１の外側からの切断も可能である。また、バンドソー等を用いて切削により切断してもよい。
切断作業時に必要があれば、適当な治具ｃ１３等を用いて、２本の継手ｃ０２，ｃ０２同士及び２本の継手ｃ０３，ｃ０３同士を拘束する。
(Cutting process)
Next, as shown in FIG.1 (c), the site | part which cross | intersects the cutting planned surface c11 of the steel pipe c01 is cut | disconnected. As a cutting method, a fusing method such as gas cutting, plasma cutting, or laser cutting may be applied, and cutting may be performed from the inside of the steel pipe c01. However, if a torch is inserted between the two joints c02, c02 (c03, c03) using a long tip or the like, the steel pipe c01 can be cut from the outside. Moreover, you may cut | disconnect by cutting using a band saw etc.
If necessary at the time of cutting work, the two joints c02 and c02 and the two joints c03 and c03 are restrained by using an appropriate jig c13 or the like.
（第２溶接工程）
最後に、図１(d)に示すように各継手ｃ０２，ｃ０３の基端部ｃ０４、ｃ０７と鋼管ｃ０１の外周面とを鋼管ｃ０１を切断した側から溶接する（すなわち、曲部ｃ０５（ｃ０８）側を溶接する）。このときできる溶接部ｃ１４を図示する。
(Second welding process)
Finally, as shown in FIG. 1 (d), the base ends c04 and c07 of the joints c02 and c03 and the outer peripheral surface of the steel pipe c01 are welded from the side where the steel pipe c01 is cut (that is, the curved part c05 (c08)). Welding side). A weld c14 that can be formed at this time is illustrated.
以上の工程により、図１(d)に示すように２本の鋼矢板ｃ２０，ｃ２０を製造することができる。２本の鋼矢板ｃ２０，ｃ２０の本体ｃ０１Ａ，ｃ０１Ｂの素材として鋼管ｃ０１を利用することができ、安価に精度、強度が良好な本体ｃ０１Ａ，ｃ０１Ｂが得られる。鋼管ｃ０１を断面半円状に切断してから継手ｃ０２，ｃ０３を溶接すると、出来上がった鋼矢板に歪みが生じやすいが、切断前の鋼管ｃ０１に対して継手ｃ０２，ｃ０３を溶接するので、鋼矢板ｃ２０，ｃ２０を歪みが少なく製造できる。
本体ｃ０１Ａ，ｃ０１Ｂと継手ｃ０２，ｃ０３とが側面同士を合せて接合されているので、その接合部分を含めて強度の高い２本の鋼矢板ｃ２０，ｃ２０が得られる。
以上により、安価で精度及び強度が良好な鋼矢板ｃ２０，ｃ２０を製造することができる。
なお、図１(d)において、２本の鋼矢板ｃ２０，ｃ２０のうちいずれか１本をひっくり返せば、継手の配置は一致するので、同構造の２本の鋼矢板ｃ２０，ｃ２０が製造されたことがわかる。
Through the above steps, two steel sheet piles c20 and c20 can be manufactured as shown in FIG. The steel pipe c01 can be used as a material for the main bodies c01A and c01B of the two steel sheet piles c20 and c20, and the main bodies c01A and c01B having good accuracy and strength can be obtained at low cost. When the joints c02 and c03 are welded after the steel pipe c01 is cut into a semicircular cross section, the resulting steel sheet pile is likely to be distorted, but the joints c02 and c03 are welded to the steel pipe c01 before cutting. c20 and c20 can be manufactured with less distortion.
Since the main bodies c01A, c01B and the joints c02, c03 are joined with their side surfaces joined together, two high-strength steel sheet piles c20, c20 are obtained including the joined parts.
As described above, steel sheet piles c20 and c20 that are inexpensive and have good accuracy and strength can be manufactured.
In FIG. 1 (d), if any one of the two steel sheet piles c20, c20 is turned over, the joint arrangement is matched, so that two steel sheet piles c20, c20 having the same structure are manufactured. I understand that.
〔鋼矢板〕
以上の製造方法を一例として、図１(d)に示すような鋼矢板ｃ２０が構成される。図２には、本体と継手の接合部分の詳細図を示す。
図１(d)に示すように、鋼矢板ｃ２０は、継手ｃ０２，ｃ０３を本体ｃ０１Ａ（ｃ０１Ｂ）の両側に備える鋼矢板である。
継手ｃ０２，ｃ０３の基端部ｃ０４，ｃ０７が、本体ｃ０１Ａ（ｃ０１Ｂ）の側縁部ｃ２１に沿って形成されている。継手ｃ０２，ｃ０３の基端部ｃ０４，ｃ０７の側面と、本体ｃ０１Ａ（ｃ０１Ｂ）の側縁部ｃ２１の側面とが接合されている。継手ｃ０２（ｃ０３）側の接合面は、基端部ｃ０４（ｃ０７）の側面のうち、曲部ｃ０５，ｃ０８の外コーナーに隣接する面である。本体ｃ０１Ａ（ｃ０１Ｂ）側の接合面は、外側の面である。基端部ｃ０４（ｃ０７）から曲部ｃ０５（ｃ０８）を介して延設部ｃ０６が本体ｃ０１Ａ（ｃ０１Ｂ）から離れる横方向に延出している。ここでは、横方向とは、本体ｃ０１Ａ（ｃ０１Ｂ）の長手方向及び迂回方向に垂直な方向である。
[Steel sheet pile]
Taking the above manufacturing method as an example, a steel sheet pile c20 as shown in FIG. In FIG. 2, the detailed drawing of the junction part of a main body and a coupling is shown.
As shown in FIG. 1 (d), the steel sheet pile c20 is a steel sheet pile provided with joints c02 and c03 on both sides of the main body c01A (c01B).
Base ends c04 and c07 of the joints c02 and c03 are formed along the side edge c21 of the main body c01A (c01B). The side surfaces of the base end portions c04 and c07 of the joints c02 and c03 and the side surface of the side edge portion c21 of the main body c01A (c01B) are joined. The joint surface on the joint c02 (c03) side is a surface adjacent to the outer corners of the curved portions c05 and c08 among the side surfaces of the base end portion c04 (c07). The joint surface on the main body c01A (c01B) side is an outer surface. An extending part c06 extends from the base end part c04 (c07) via the curved part c05 (c08) in the lateral direction away from the main body c01A (c01B). Here, the lateral direction is a direction perpendicular to the longitudinal direction and the detour direction of the main body c01A (c01B).
（変形例）
本体ｃ０１Ａ（ｃ０１Ｂ）は、断面半円状に限らず断面Ｕ形等でもよく、両側縁（両継手）を通る平面に対して片側へ迂回した形状であればよい。迂回方向を矢印ｃ２３又はｄ２３で示す。
また、製造方法は限定されず、鋼管から本体を構成した上記製造方法によらなくてもよい。
(Modification)
The main body c01A (c01B) is not limited to a semicircular cross section and may have a U shape or the like as long as it has a shape detoured to one side with respect to a plane passing through both side edges (both joints). The detour direction is indicated by an arrow c23 or d23.
Moreover, a manufacturing method is not limited and it does not need to depend on the said manufacturing method which comprised the main body from the steel pipe.
本体と継手の接合は、本体の側面と継手の基端部の側面とを合せればよいから、図３に示すように、本体ｄ０１の側縁部ｄ２１を、曲部ｄ２２を介して横方向ｄ２４，ｄ２５に延ばした構造としてもよい。
図３(a)(b)においては、曲部ｄ２２より先の部分の側面を接合面とする。図３(a)においては本体ｄ０１の迂回方向ｄ２３の側の面を接合面とする。図３(b)においては本体ｄ０１の迂回方向ｄ２３の逆方向側の面を接合面とする。
図３(a)(b)に示す接合構造の場合、基端部ｄ０４（ｄ０７）は、側縁部ｄ２１と同様に横方向ｄ２４，ｄ２５に延在する。また、図３(a)(b)に示す接合構造の場合、接合部位にある基端部ｄ０４（ｄ０７）は、それより先の延設部ｄ０６（ｄ０９）との間に曲部を有さないが、継手によっては基端部ｄ０４（ｄ０７）に曲部が連続して延設される場合もある。
図３(c)においては、曲部ｄ２２及びその両側の部分の側面を接合面とする。継手ｅ０２（ｅ０３）は、接合部位にある基端部ｅ０４（ｅ０７）内に曲部ｅ０５（ｅ０８）がある。本体ｄ０１の曲部ｄ２２の内コーナーと、継手ｅ０２（ｅ０３）の曲部ｅ０５（ｅ０８）の外コーナーとが合わされて、本体ｄ０１の側縁部ｄ２１との継手ｅ０２（ｅ０３）の基端部ｅ０４（ｅ０７）とがＬ字状に沿う形である。図３(a)に対する図３(b)の場合と同様に、本体ｄ０１の曲部ｄ２２の外コーナーと、継手ｅ０２（ｅ０３）の曲部ｅ０５（ｅ０８）の内コーナーとを合わせた構造としてもよい。
In joining the main body and the joint, the side surface of the main body and the side surface of the base end portion of the joint may be combined, and therefore, as shown in FIG. It is good also as a structure extended to d24 and d25.
3 (a) and 3 (b), the side surface of the portion ahead of the curved portion d22 is used as the bonding surface. In FIG. 3 (a), the surface on the side of the bypass direction d23 of the main body d01 is defined as a bonding surface. In FIG. 3 (b), the surface opposite to the detour direction d23 of the main body d01 is defined as a joint surface.
3A and 3B, the base end portion d04 (d07) extends in the lateral directions d24 and d25 similarly to the side edge portion d21. 3A and 3B, the base end portion d04 (d07) at the joining portion has a curved portion between the extension portion d06 (d09) ahead of it. Although there is no joint, a curved part may be continuously extended to the base end part d04 (d07) depending on the joint.
In FIG.3 (c), let the side surface of the curved part d22 and the part of the both sides be a joining surface. The joint e02 (e03) has a curved part e05 (e08) in the base end part e04 (e07) at the joining site. The inner corner of the curved portion d22 of the main body d01 and the outer corner of the curved portion e05 (e08) of the joint e02 (e03) are combined, and the base end portion e04 of the joint e02 (e03) with the side edge d21 of the main body d01. (E07) is a shape along the L-shape. Similarly to the case of FIG. 3B with respect to FIG. 3A, the outer corner of the curved portion d22 of the main body d01 and the inner corner of the curved portion e05 (e08) of the joint e02 (e03) may be combined. Good.
継手の嵌合構造は、上掲のものは一例であって特に限定されず、例えば図４に示す例も適用できる。図４に示す継手ｆ０１‐ｆ０６は、上述した縦入れ式の嵌合構造の継手である。図４(a)に示す継手ｆ０１，ｆ０２と、図４(b)(c)に示す継手ｆ０３‐ｆ０６との違いは、前者が左右対称であるのに対し、後者が左右非対称である。継手ｆ０１，ｆ０２が左右対称の図４(a)の鋼矢板を複数本用いて矢板壁を構築する場合、鋼矢板１本ずつ向きを変えて継手を嵌合させる。図４(b)(c)に示す鋼矢板では隣接する鋼矢板が同じ向きで継手は嵌合する。なお、図４(b)に示す鋼矢板は、図４(c)に示す鋼矢板に対し、本体ｃ０１Ａ（ｃ０１Ｂ）の迂回方向ｃ２３の逆方向への出っ張りを無くした「ゼロ矢板」と呼ばれるものである。 The fitting structure described above is merely an example, and is not particularly limited. For example, the example shown in FIG. 4 can also be applied. Joints f01-f06 shown in FIG. 4 are joints of the above-described vertical insertion type fitting structure. The difference between the joints f01 and f02 shown in FIG. 4 (a) and the joints f03-f06 shown in FIGS. 4 (b) and 4 (c) is that the former is symmetric while the latter is asymmetric. When constructing a sheet pile wall using a plurality of steel sheet piles in FIG. 4 (a) in which the joints f01 and f02 are symmetric, the joints are fitted by changing the direction of each steel sheet pile. In the steel sheet piles shown in FIGS. 4 (b) and 4 (c), the steel sheet piles adjacent to each other are fitted in the same direction. The steel sheet pile shown in FIG. 4 (b) is called a “zero sheet pile” in which the protrusion in the reverse direction of the detour direction c23 of the main body c01A (c01B) is eliminated from the steel sheet pile shown in FIG. 4 (c). It is.
（横入れ式についての詳細な説明）
図１から図３に示した鋼矢板は、横入れ式の嵌合構造の継手を有した構造である。かかる構造について図５から図８を参照して以下の２種を説明する。但し、本体と継手の接合構造については上述の通りであり、図示及び説明を省略する。
(Detailed explanation about horizontal loading type)
The steel sheet pile shown in FIG. 1 to FIG. 3 has a structure having a joint of a horizontal insertion type fitting structure. With respect to such a structure, the following two types will be described with reference to FIGS. However, the joint structure of the main body and the joint is as described above, and illustration and description are omitted.
図５に示すように本発明の一実施形態の鋼矢板ａ０１は、本体ａ０２と、一方の継手ａ０３と、他方の継手ａ０４とを備える。
図５(b)に示すように本体ａ０２の長手方向が縦方向ａ０５である。図５(a)は縦方向ａ０５に垂直な断面図である。
本体ａ０２の縦方向ａ０５に沿う両側縁ａ０６，ａ０７に継手ａ０３，ａ０４が延設されている。本体ａ０２は、両側縁ａ０６，ａ０７を通る平面ａ０８に対して片側へ迂回した形状を有する。図示例では、本体ａ０２は、断面半円形の構造により迂回した形状を形成しているが、断面Ｕ形等の他の構造でもよい。
継手ａ０３は、その屈曲部ａ０９により本体ａ０２の縦方向ａ０５に沿う嵌合溝ａ１０を形成している。
継手ａ０４は、図６の矢印ａ１１で示すように嵌合溝ａ１０に側方から相対的に差し入れられて、さらに図６の矢印ａ１２で示すように相対的に回転させられることで、図７に示すように嵌合可能な鉤状部ａ１３を形成している。ここで、「差し入れる」及び「回転させる」は、相対的であれば継手嵌合は成立するので、どちらの矢板を動かすこととなってもよい。
As shown in FIG. 5, a steel sheet pile a01 according to an embodiment of the present invention includes a main body a02, one joint a03, and the other joint a04.
As shown in FIG. 5B, the longitudinal direction of the main body a02 is the longitudinal direction a05. FIG. 5A is a cross-sectional view perpendicular to the longitudinal direction a05.
Joints a03 and a04 are extended to both side edges a06 and a07 along the longitudinal direction a05 of the main body a02. The main body a02 has a shape detoured to one side with respect to a plane a08 passing through both side edges a06, a07. In the illustrated example, the main body a02 has a detoured shape due to a semicircular cross-sectional structure, but may have other structures such as a U-shaped cross section.
The joint a03 forms a fitting groove a10 along the longitudinal direction a05 of the main body a02 by the bent portion a09.
The joint a04 is relatively inserted from the side into the fitting groove a10 as shown by an arrow a11 in FIG. 6, and is further rotated relatively as shown by an arrow a12 in FIG. As shown, a hook-shaped portion a13 that can be fitted is formed. Here, if “insert” and “rotate” are relative, the joint fitting is established, and thus any of the sheet piles may be moved.
さらに構造を詳細に説明する。
図５に示すように継手ａ０３は、一側縁ａ０６において本体ａ０２から離れる横方向ａ１４に延設された腕部ａ１５を有する。継手ａ０３は、一側縁ａ０６に結合する側を基端とし、その逆側を先端とする。
さらに継手ａ０３は、腕部ａ１５の先端ａ１６から本体ａ０２の迂回方向ａ１７に曲がり本体ａ０２から離れる斜め方向ａ１８に延設された第１壁部ａ１９を有する。
さらに継手ａ０３は、第１壁部ａ１９の先端ａ２０から本体ａ０２から離れる横方向ａ１４に延設された第２壁部ａ２２を有する。
さらに継手ａ０３は、第２壁部ａ２２の先端ａ２３から本体ａ０２の迂回方向ａ１７の逆方向ａ２４に曲がり本体ａ０２に近づく斜め方向ａ２５へ延設された第３壁部ａ２６を有する。
継手ａ０３は、以上の第１壁部ａ１９と第２壁部ａ２２と第３壁部ａ２６とにより本体ａ０２の縦方向ａ０５に沿う上述の嵌合溝ａ１０を形成している。
Further, the structure will be described in detail.
As shown in FIG. 5, the joint a03 has an arm portion a15 extending in the lateral direction a14 that is separated from the main body a02 at one side edge a06. The joint a03 has a base end on the side coupled to the one side edge a06 and a tip on the opposite side.
Further, the joint a03 has a first wall portion a19 that is bent in the detour direction a17 of the main body a02 from the tip end a16 of the arm portion a15 and extends in an oblique direction a18 that is separated from the main body a02.
Further, the joint a03 has a second wall portion a22 extending in the lateral direction a14 away from the main body a02 from the tip end a20 of the first wall portion a19.
Further, the joint a03 has a third wall portion a26 that is bent from the tip end a23 of the second wall portion a22 in a reverse direction a24 of the bypass direction a17 of the main body a02 and extends in an oblique direction a25 approaching the main body a02.
The joint a03 forms the above-described fitting groove a10 along the longitudinal direction a05 of the main body a02 by the first wall portion a19, the second wall portion a22, and the third wall portion a26.
一方、継手ａ０４は、他の一側縁ａ０７において本体ａ０２から離れる横方向ａ２７に延設された腕部ａ２８と、上述の鉤状部ａ１３とを有する。
鉤状部ａ１３は、腕部ａ２８の先端ａ２９から本体ａ０２の迂回方向ａ１７に曲がり本体ａ０２に近づく斜め方向ａ３０へ延設されている。
以上の構造により、図６の矢印ａ１１で示すように嵌合溝ａ１０に側方から相対的に差し入れられて、さらに図６の矢印ａ１２で示すように相対的に回転させられることで、図７に示すように嵌合可能な継手の嵌合構造が構成される。この継手の嵌合構造の基本は、特許文献１に記載の物と同様であり、同文献を参考に嵌合溝ａ１０の開口幅寸法、奥側寸法、鉤状部ａ１３の先端の爪形状、最大幅寸法などを適宜に設計して実施する。
なお、横方向（ａ１４，ａ２７）は、縦方向（ａ０５）及び迂回方向（ａ１７）に垂直な方向である。
On the other hand, the joint a04 has an arm part a28 extending in the lateral direction a27 that is separated from the main body a02 at the other one side edge a07, and the hook-like part a13 described above.
The hook-shaped portion a13 extends from the distal end a29 of the arm portion a28 in a detour direction a17 of the main body a02 and extends in an oblique direction a30 approaching the main body a02.
With the above structure, the fitting groove a10 is relatively inserted from the side as indicated by an arrow a11 in FIG. 6 and is further rotated as indicated by an arrow a12 in FIG. As shown in Fig. 2, a fitting fitting structure is formed. The basics of the fitting structure of this joint are the same as those described in Patent Document 1, and with reference to the same document, the opening width dimension of the fitting groove a10, the back dimension, the claw shape at the tip of the hook-shaped part a13, Design and implement the maximum width dimension appropriately.
The horizontal direction (a14, a27) is a direction perpendicular to the vertical direction (a05) and the detour direction (a17).
他の実施形態につき、図８を参照して説明する。
図５から図７に示した鋼矢板ａ０１にあっては、嵌合溝ａ１０が本体ａ０２の迂回方向ａ１７の逆方向ａ２４に向いており、鉤状部ａ１３が本体ａ０２の迂回方向ａ１７に向いている。
これに対し図８に示す鋼矢板ｂ０１のように、嵌合溝ｂ１０と鉤状部ｂ１３の向きを逆にしても、同様に実施することができる。
すなわち、構造を詳細に説明すると以下の通りである。
図８に示すように継手ｂ０３は、一側縁ａ０６において本体ａ０２から離れる横方向ａ１４に延設された腕部ｂ１５を有する。
さらに継手ｂ０３は、腕部ｂ１５の先端ｂ１６から本体ａ０２の迂回方向ａ１７の逆方向ａ２４に曲がり本体ａ０２から離れる斜め方向ｂ１８に延設された第１壁部ｂ１９を有する。
さらに継手ｂ０３は、第１壁部ｂ１９の先端ｂ２０から本体ａ０２から離れる横方向ａ１４に延設された第２壁部ｂ２２を有する。
さらに継手ｂ０３は、第２壁部ｂ２２の先端ｂ２３から本体ａ０２の迂回方向ａ１７に曲がり本体ａ０２に近づく斜め方向ｂ２５へ延設された第３壁部ｂ２６を有する。
継手ｂ０３は、以上の第１壁部ｂ１９と第２壁部ｂ２２と第３壁部ｂ２６とにより本体ａ０２の縦方向ａ０５に沿う嵌合溝ｂ１０を形成している。
以上のように継手ｂ０３は、その屈曲部ｂ０９により本体ａ０２の縦方向ａ０５に沿う嵌合溝ｂ１０を形成している。
一方、継手ｂ０４は、他の一側縁ａ０７において本体ａ０２から離れる横方向ａ２７に延設された腕部ｂ２８と、鉤状部ｂ１３とを有する。
鉤状部ｂ１３は、腕部ｂ２８の先端ｂ２９から本体ａ０２の迂回方向ａ１７の逆方向ａ２４に曲がり本体ａ０２に近づく斜め方向ｂ３０へ延設されている。
Another embodiment will be described with reference to FIG.
In the steel sheet pile a01 shown in FIG. 5 to FIG. 7, the fitting groove a10 faces in the reverse direction a24 of the bypass direction a17 of the main body a02, and the hook-shaped portion a13 faces in the bypass direction a17 of the main body a02. Yes.
On the other hand, even if the orientation of the fitting groove b10 and the hook-shaped portion b13 is reversed as in the steel sheet pile b01 shown in FIG.
That is, the structure will be described in detail as follows.
As shown in FIG. 8, the joint b03 has an arm portion b15 extending in the lateral direction a14 away from the main body a02 at one side edge a06.
Further, the joint b03 has a first wall portion b19 that is bent from the tip end b16 of the arm portion b15 in a reverse direction a24 of the bypass direction a17 of the main body a02 and extends in an oblique direction b18 that is away from the main body a02.
Further, the joint b03 has a second wall part b22 extending in the lateral direction a14 away from the main body a02 from the tip b20 of the first wall part b19.
Further, the joint b03 has a third wall part b26 that extends from the tip b23 of the second wall part b22 in a detour direction a17 of the main body a02 and extends in an oblique direction b25 that approaches the main body a02.
In the joint b03, the first wall portion b19, the second wall portion b22, and the third wall portion b26 described above form a fitting groove b10 along the longitudinal direction a05 of the main body a02.
As described above, the joint b03 forms the fitting groove b10 along the longitudinal direction a05 of the main body a02 by the bent portion b09.
On the other hand, the joint b04 has an arm part b28 extending in the lateral direction a27 that is separated from the main body a02 at the other one side edge a07, and a hook-like part b13.
The hook-like part b13 extends from the tip b29 of the arm part b28 in an oblique direction b30 that bends in the reverse direction a24 of the bypass direction a17 of the main body a02 and approaches the main body a02.
以上説明した鋼矢板ａ０１，ｂ０１によれば、横入れ式の継手構造を備えた鋼矢板において、迂回形状を有する本体ａ０２から両方の継手ａ０３，ａ０４（ｂ０３，ｂ０４）を独立して構成しているので、本体ａ０２から嵌合溝ａ１０（ｂ１０）、鉤状部ａ１３（ｂ１３）の離れる寸法を任意に設定できる。
また、両方の継手ａ０３，ａ０４（ｂ０３，ｂ０４）とも腕部ａ１５，ａ２８（ｂ１５，ｂ２８）を有し、腕部の長さを任意に設定することができる。
以上により、矢板壁構築において、例えば左右の継手ａ０３，ａ０４（ｂ０３，ｂ０４）の腕部ａ１５，ａ２８（ｂ１５，ｂ２８）の長さを均等にしたり不均等にしたりなど構造的に多様性を持たせることができる。
また、オーガ併用工法において、オーガ軸は、本体ａ０２の内側に配置される、すなわち、図５に示す本体ａ０２の両側縁ａ０６，ａ０７の間の中央にオーガ軸が配置されるので、オーガの掘削範囲に対して両方の継手ａ０３，ａ０４（ｂ０３，ｂ０４）をそれぞれどのように配置するかを設定することができ工法的に多様性を持たせることができる。
According to the steel sheet piles a01 and b01 described above, in the steel sheet pile having a transverse insertion type joint structure, both joints a03 and a04 (b03 and b04) are configured independently from the body a02 having a detour shape. Therefore, the dimension in which the fitting groove a10 (b10) and the flanged part a13 (b13) are separated from the main body a02 can be arbitrarily set.
Moreover, both joints a03, a04 (b03, b04) have arm portions a15, a28 (b15, b28), and the length of the arm portions can be arbitrarily set.
As described above, in the sheet pile wall construction, for example, the lengths of the arm portions a15, a28 (b15, b28) of the left and right joints a03, a04 (b03, b04) are structurally diverse. Can be made.
Further, in the auger combined construction method, the auger shaft is arranged inside the main body a02, that is, the auger shaft is arranged at the center between both side edges a06 and a07 of the main body a02 shown in FIG. It is possible to set how both the joints a03, a04 (b03, b04) are arranged with respect to the range, and it is possible to provide diversity in the construction method.
ｃ０１ 鋼管
ｃ０１Ａ，ｃ０１Ｂ 鋼矢板の本体
ｃ０２ 継手
ｃ０３ 継手
ｃ０４，ｃ０７基端部
ｃ２０ 鋼矢板
ｃ２１ 側縁部
ｃ２３ 迂回方向
c01 Steel pipe c01A, c01B Steel sheet pile main body c02 Joint c03 Joint c04, c07 Base end c20 Steel sheet pile c21 Side edge c23 Detour direction
Claims (4)
前記継手の基端部が、前記本体の側縁部に沿って形成され、
前記継手の基端部の側面と、前記本体の側縁部の側面とが接合されている鋼矢板。 A steel sheet pile with joints on both sides of the body,
The base end of the joint is formed along the side edge of the body;
The steel sheet pile in which the side surface of the base end part of the said joint and the side surface of the side edge part of the said main body are joined.
前記継手の一方は、前記本体から離れる横方向に延設された腕部と、当該腕部から前記本体の迂回方向に曲がり前記本体から離れる斜め方向に延設された第１壁部と、当該第１壁部から前記本体から離れる横方向に延設された第２壁部と、当該第２壁部から前記本体の迂回方向の逆方向に曲がり前記本体に近づく斜め方向へ延設された第３壁部とを有し、当該第１壁部と当該第２壁部と当該第３壁部とにより前記本体の縦方向に沿う嵌合溝を形成し、
前記継手の他方は、前記本体から離れる横方向に延設された腕部と、当該腕部から前記本体の迂回方向に曲がり前記本体に近づく斜め方向へ延設され、前記嵌合溝に側方から相対的に差し入れられて相対的に回転させられることで嵌合可能な形状の鉤状部とを有する請求項１に記載の鋼矢板。 A joint is extended to both side edges along the longitudinal direction of the main body, and the main body has a shape detoured to one side with respect to a plane passing through the both side edges,
One of the joints includes an arm part extending in a lateral direction away from the main body, a first wall part extending from the arm part in a detour direction of the main body and extending in an oblique direction away from the main body, A second wall portion extending in a lateral direction away from the main body from the first wall portion, and a second wall portion extending in an oblique direction from the second wall portion in a direction opposite to the detour direction of the main body and approaching the main body. Three wall portions, and the first wall portion, the second wall portion and the third wall portion form a fitting groove along the longitudinal direction of the main body,
The other of the joints is an arm portion extending in a lateral direction away from the main body, and is bent in a detour direction of the main body from the arm portion and extending in an oblique direction approaching the main body, and laterally enters the fitting groove. The steel sheet pile according to claim 1, wherein the steel sheet pile has a hook-like portion that can be fitted by being relatively inserted and rotated.
前記継手の一方は、前記本体から離れる横方向に延設された腕部と、当該腕部から前記本体の迂回方向の逆方向に曲がり前記本体から離れる斜め方向に延設された第１壁部と、当該第１壁部から前記本体から離れる横方向に延設された第２壁部と、当該第２壁部から前記本体の迂回方向に曲がり前記本体に近づく斜め方向へ延設された第３壁部とを有し、当該第１壁部と当該第２壁部と当該第３壁部とにより前記本体の縦方向に沿う嵌合溝を形成し、
前記継手の他方は、前記本体から離れる横方向に延設された腕部と、当該腕部から前記本体の迂回方向の逆方向に曲がり前記本体に近づく斜め方向へ延設され、前記嵌合溝に側方から相対的に差し入れられて相対的に回転させられることで嵌合可能な形状の鉤状部とを有する請求項１に記載の鋼矢板。 A joint is extended to both side edges along the longitudinal direction of the main body, and the main body has a shape detoured to one side with respect to a plane passing through the both side edges,
One of the joints is an arm portion extending in a lateral direction away from the main body, and a first wall portion extending in an oblique direction away from the main body by bending in the opposite direction of the bypass direction of the main body from the arm portion. And a second wall portion extending in a lateral direction away from the main body from the first wall portion, and a second wall portion extending in an oblique direction from the second wall portion in a detour direction of the main body and approaching the main body. Three wall portions, and the first wall portion, the second wall portion and the third wall portion form a fitting groove along the longitudinal direction of the main body,
The other of the joints is an arm portion extending in a lateral direction away from the main body, and extends in an oblique direction from the arm portion in a direction opposite to the detour direction of the main body and approaching the main body, and the fitting groove The steel sheet pile according to claim 1, wherein the steel sheet pile has a hook-shaped portion that can be fitted by being relatively inserted from the side and rotated relatively.
前記本体の２本分に相当する鋼管の外周面の所定位置に、鋼矢板２本分の継手の各基端部の側面を接合した後、当該鋼管を長手方向に切断して断面半円状に半割りし、前記所定位置を前記側縁部の側面に相当する位置とすることで、前記半円鋼矢板を２本分製造する鋼矢板の製造方法。 It is a steel sheet pile as described in any one of Claims 1-3, Comprising: In the method of manufacturing the semicircle steel sheet pile whose section perpendicular to the longitudinal direction of the main part is semicircle shape,
After joining the side surfaces of the base end portions of the joints of two steel sheet piles at predetermined positions on the outer peripheral surface of the steel pipe corresponding to two of the main bodies, the steel pipe is cut in the longitudinal direction and is semicircular in cross section The method for manufacturing a steel sheet pile, in which the two half-circular steel sheet piles are manufactured by dividing the sheet into half and dividing the predetermined position into a position corresponding to the side surface of the side edge.
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| EP3882510A1 (en) * | 2020-03-17 | 2021-09-22 | Enzo Catellani | Heat sink for lamp and method of realization of said heat sink for lamp |
| RU212082U1 (en) * | 2021-10-04 | 2022-07-05 | Алексей Леонидович Калинин | PILE FOR CONSTRUCTION OF SINUSOIDAL PILING WALL |
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