JPS5817788Y2 - steel pipe sheet piles - Google Patents
steel pipe sheet pilesInfo
- Publication number
- JPS5817788Y2 JPS5817788Y2 JP2671478U JP2671478U JPS5817788Y2 JP S5817788 Y2 JPS5817788 Y2 JP S5817788Y2 JP 2671478 U JP2671478 U JP 2671478U JP 2671478 U JP2671478 U JP 2671478U JP S5817788 Y2 JPS5817788 Y2 JP S5817788Y2
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- sheet pile
- joint member
- pipe sheet
- main
- 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
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【考案の詳細な説明】
本考案は土木工事の仮締切、護岸等の連続壁に用いられ
る鋼管矢板に関する。[Detailed description of the invention] The present invention relates to steel pipe sheet piles used for temporary cofferdams in civil engineering works, continuous walls of seawalls, etc.
従来、地盤の状況等により、複数の鋼管矢板を継ぎ合せ
ながら打設する場合、第1図に示すように鋼管等からな
る矢板本管1の外周に、該矢板本管1の両端部近傍を除
いて、鋼管等からなり長手方向にスリットを有する継手
部材2をその全長にわたって溶接3すると共にその端部
において矢板本管1の周方向にも溶接した鋼管矢板を適
当な深さまで打設し、次に前記鋼管矢板と同様に矢板本
管4の外周に継手部材5を溶接6してなる鋼管矢板の矢
板本管4の下端と既に適当な深さまで打設した鋼管矢板
の矢板本管1の上端とを溶接7にて接続し、次に上側の
鋼管矢板の継手部材5と下側の鋼管矢板の継手部材2と
の間に補助継手部材8を挿入し、該補助継手部材8と矢
板本管1との接触部分および補助継手部材8と継手部材
2,5との接触部分を溶接9した後、所定の深さまで打
設し、以下接続本数に応じて上記工程を繰り返す方法が
とられていた。Conventionally, when installing multiple steel pipe sheet piles while splicing them together depending on the ground condition, etc., as shown in Fig. 1, the outer periphery of the main sheet pile 1 made of steel pipes, etc., is placed near both ends of the main sheet pile 1. A joint member 2 made of a steel pipe or the like and having a slit in the longitudinal direction is welded 3 along its entire length, and a steel pipe sheet pile is welded to an appropriate depth in the circumferential direction of the main sheet pile pipe 1 at the end thereof, Next, similarly to the steel pipe sheet pile described above, a joint member 5 is welded 6 to the outer periphery of the main sheet pile 4 of the steel pipe sheet pile, and the lower end of the main pipe 4 of the steel pipe sheet pile is connected to the main pipe 1 of the steel pipe sheet pile, which has already been driven to an appropriate depth. The upper ends are connected by welding 7, and then the auxiliary joint member 8 is inserted between the joint member 5 of the upper steel pipe sheet pile and the joint member 2 of the lower steel pipe sheet pile, and the auxiliary joint member 8 and the sheet pile are connected. After welding 9 the contact area with the pipe 1 and the contact area between the auxiliary joint member 8 and the joint members 2 and 5, the weld is cast to a predetermined depth, and the above steps are repeated depending on the number of connections. Ta.
ところが継手部材2,5と矢板本管1゜4との接触部の
溶接3,6および継手部材2,5端部の矢板本管周方向
の溶接時の熱の影響のため継手部材2,5端部近傍およ
び矢板本管1,4端部近傍において矢板本管1,4が局
部変形し、継手部材2と継手部材5との間に補助継手部
材8を挿入する際に、継手部材2,5と補助継手部材8
との間に段差を生じ、うまく溶接9できなかった。However, due to the influence of heat during welding 3, 6 at the contact portion between the joint members 2, 5 and the sheet pile main pipe 1゜4 and during welding in the circumferential direction of the sheet pile main pipe at the end of the joint members 2, 5, the joint members 2, 5 The sheet pile main pipes 1, 4 are locally deformed near the ends and near the ends of the sheet pile main pipes 1, 4, and when the auxiliary joint member 8 is inserted between the joint member 2 and the joint member 5, the joint member 2, 5 and auxiliary joint member 8
There was a difference in level between the two, and welding could not be performed successfully9.
本考案は上記欠点を解消するものであり、以下その一実
施例を図面に基づいて説明する。The present invention is intended to eliminate the above-mentioned drawbacks, and one embodiment thereof will be described below with reference to the drawings.
第2図において10は鋼管などからなる矢板本管であり
、該矢板本管10の外周面には該矢板本管10の両端よ
り約300 mmの範囲を除いて管軸心と平行に鋼管な
どからなり管軸方向にスリットを有する継手部材11が
その一端よ’)100mm程度の未溶接部12を残して
溶接13されている。In FIG. 2, reference numeral 10 indicates a main sheet pile made of steel pipes, etc., and on the outer peripheral surface of the main sheet pile 10 there are steel pipes etc. parallel to the pipe axis, except for a range of about 300 mm from both ends of the main sheet pile 10. A joint member 11 having a slit in the tube axis direction is welded 13 at one end, leaving an unwelded portion 12 of about 100 mm.
また該継手部材11他端は矢板本管10周方向にも溶接
されている。Further, the other end of the joint member 11 is also welded in the circumferential direction of the sheet pile main pipe 10.
次に施工手順を説明する。Next, the construction procedure will be explained.
まず上記構成の鋼管矢板を未溶接部12 aに近い側の
端部が上側となるように適当な深さまで打設する。First, the steel pipe sheet pile having the above structure is driven to an appropriate depth so that the end near the unwelded portion 12a is on the upper side.
次に同様な構成の鋼管矢板の矢板本管10 bを未溶接
部12bに近い側の端部が下側となるように既に適当な
深さまで打設した鋼管矢板の矢板本管10 a上に載せ
、その接触部を溶接14する。Next, a sheet pile main pipe 10b of a similar structure is placed on top of the main sheet pile 10a of a steel pipe sheet pile, which has already been driven to an appropriate depth so that the end closest to the unwelded portion 12b is on the lower side. The contact portion is welded 14.
次に下側の鋼管矢板の継手部材11 aと上側の鋼管矢
板の継手部材11 bとの間に補助継手部材15を挿入
する。Next, the auxiliary joint member 15 is inserted between the joint member 11 a of the lower steel pipe sheet pile and the joint member 11 b of the upper steel pipe sheet pile.
このとき継手部材11 a、11 bと矢板本管10a
、10bとは未溶接部12a、12bを残して溶接して
いるので、継手部材11 a、11 bノ未溶接部12
a 、12 b側の端部近傍の矢板本管10 a 、
10 b、および矢板本管10a、10bの未溶接部1
2 a 、12 bに近い側の端部は溶接13 a 、
13 b時の熱の影響を受けず局部起形していないので
、継手部材11 a、11 bと補助継手部材15との
間に段差を生じるようなことがない。At this time, the joint members 11a, 11b and the sheet pile main pipe 10a
, 10b are welded leaving the unwelded parts 12a, 12b, so the unwelded parts 12 of the joint members 11a, 11b
A, 12 Sheet pile main pipe 10a near the end on the b side,
10b, and unwelded parts 1 of sheet pile main pipes 10a and 10b
2 a , the end closer to 12 b is welded 13 a ,
Since the joint members 11a, 11b and the auxiliary joint member 15 are not affected by the heat generated during the step 13b and are not locally shaped, there is no possibility that a difference in level will occur between the joint members 11a, 11b and the auxiliary joint member 15.
次に上側の鋼管矢板を所定の深さまで打設する。Next, the upper steel pipe sheet pile is driven to the specified depth.
以上で継ぎ合わせの鋼管矢板1本の打設作業を終了し、
次に第4図のように継手部材11C,11dを互いに噛
合させて上記手順によって鋼管矢板の打設を順次行なう
ことにより、鋼管矢板による連続壁が形成される。This completes the installation of one jointed steel pipe sheet pile.
Next, as shown in FIG. 4, the joint members 11C and 11d are engaged with each other and the steel pipe sheet piles are sequentially driven according to the above procedure, thereby forming a continuous wall of the steel pipe sheet piles.
なお上記実施例においては、鋼管矢板を2本継ぎ合わせ
た場合について説明したが、3本以上継ぎ合わせる場合
には、継ぎ合わせた状態で両端に位置する鋼管矢板以外
の鋼管矢板として、継手部材11の両端部近傍に未溶接
部12を残したものを用いて順次実施例に示した如く継
ぎ合わせていけは゛良い。In the above embodiment, the case where two steel pipe sheet piles are joined together has been described, but when three or more steel pipe sheet piles are joined together, the joint member 11 is used as the steel pipe sheet pile other than the steel pipe sheet piles located at both ends in the joined state. It is preferable to leave unwelded portions 12 near both ends of the material and join them one after another as shown in the embodiment.
また上記実施例においては、矢板本管10端部から約3
QQ mm内側に継手部材11端部が位置するようにす
ると共に、未溶接部12を約100 mm設けたが、こ
れは各種設計条件により適宜流められるものであり、必
ずしも上記の寸法である必要はない。In addition, in the above embodiment, approximately 3
The end of the joint member 11 was positioned inside QQ mm, and an unwelded part 12 of about 100 mm was provided, but this can be adjusted as appropriate depending on various design conditions, and it is not necessarily necessary to have the above dimensions. There isn't.
また上記実施例においては、パイプ状の継手部材11を
用いたが、これは第5図のようにパイプ状の継手部材1
7 a 、17 bと断面T字型の継手部材18 a
、18 bとの組合せ、あるいな第6図のように断面箱
型の継手部材19 a 、19 bと断面T字型の継手
部材20a 、20 bとの組合せ等、他の形状のもの
であっても良い。Further, in the above embodiment, the pipe-shaped joint member 11 was used, but this is different from the pipe-shaped joint member 11 as shown in FIG.
7 a, 17 b and a T-shaped cross-section joint member 18 a
, 18b, or a combination of box-shaped joint members 19a, 19b and T-shaped joint members 20a, 20b as shown in FIG. It's okay.
以上説明したように、本考案にかかる鋼管矢板によれば
、鋼管の外周に管軸心と平行に継手部材を少なくとも一
方の端部より所要長さの未溶接部を残して溶接付けして
なるので、鋼管矢板を継ぎ合わせる工程で、継手部材間
に補助継手部材を挿入する際に、継手部材と補助継手部
材との間に段差を生じるようなことがないため、迅速か
つ確実に溶接し得、したがって強度が大であると共に打
設に要する工期を短縮し得る。As explained above, according to the steel pipe sheet pile according to the present invention, the joint member is welded to the outer periphery of the steel pipe parallel to the pipe axis, leaving an unwelded part of a required length from at least one end. Therefore, when inserting the auxiliary joint member between the joint members in the process of joining steel pipe sheet piles, there is no difference in level between the joint member and the auxiliary joint member, so welding can be performed quickly and reliably. Therefore, the strength is high and the construction period required for pouring can be shortened.
第1図は従来の鋼管矢板を継ぎ合わせた例を示す側面図
、第2図〜第6図は本考案の実施例を示し、第2図はそ
の側面図、第3図は継ぎ合わせた場合の側面図、第4図
〜第6図はそれぞれ異なる継手部材の噛合状態を示す模
式横断面図である。
10・・・・・・矢板本管、11・・・・・・継手部材
、12・・・・・・未溶接部、13・・・・・・溶接。Fig. 1 is a side view showing an example of conventional steel pipe sheet piles spliced together, Figs. 2 to 6 show examples of the present invention, Fig. 2 is a side view thereof, and Fig. 3 is a case where they are spliced together. The side view and FIGS. 4 to 6 are schematic cross-sectional views showing the meshing states of different joint members, respectively. 10... Sheet pile main pipe, 11... Joint member, 12... Unwelded portion, 13... Welded.
Claims (1)
なくとも一方の端部より所要長さの未溶接部を残して溶
接付けしてなる鋼管矢板。A steel pipe sheet pile formed by welding a joint member to the outer periphery of a steel pipe parallel to the pipe axis, leaving an unwelded portion of a required length from at least one end of the joint member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2671478U JPS5817788Y2 (en) | 1978-03-01 | 1978-03-01 | steel pipe sheet piles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2671478U JPS5817788Y2 (en) | 1978-03-01 | 1978-03-01 | steel pipe sheet piles |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54131310U JPS54131310U (en) | 1979-09-12 |
JPS5817788Y2 true JPS5817788Y2 (en) | 1983-04-11 |
Family
ID=28869487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2671478U Expired JPS5817788Y2 (en) | 1978-03-01 | 1978-03-01 | steel pipe sheet piles |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5817788Y2 (en) |
-
1978
- 1978-03-01 JP JP2671478U patent/JPS5817788Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS54131310U (en) | 1979-09-12 |
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