JPS62253816A - Welder for reinforcing bar cage in continuous underground wall construction - Google Patents
Welder for reinforcing bar cage in continuous underground wall constructionInfo
- Publication number
- JPS62253816A JPS62253816A JP9549186A JP9549186A JPS62253816A JP S62253816 A JPS62253816 A JP S62253816A JP 9549186 A JP9549186 A JP 9549186A JP 9549186 A JP9549186 A JP 9549186A JP S62253816 A JPS62253816 A JP S62253816A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing bar
- underground wall
- bar cage
- guide rails
- lifting platform
- 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
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 34
- 238000010276 construction Methods 0.000 title claims abstract description 12
- 238000003466 welding Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000003028 elevating effect Effects 0.000 abstract description 5
- 230000001595 contractor effect Effects 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- MCBBFDNTCVNDCE-UHFFFAOYSA-N cyclopenta-1,3-diene cyclopenta-2,4-diene-1-carbonyl cyanide iron(2+) Chemical compound [Fe++].c1cc[cH-]c1.O=C(C#N)[c-]1cccc1 MCBBFDNTCVNDCE-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、先行地中壁と後行地中壁間の打ち継ぎ部に
おいて、両者に設けられた鉄筋籠の端部同士を水中溶接
により溶接できるようにした鉄筋籠の溶接装置に関する
。Detailed Description of the Invention (Field of Industrial Application) The present invention is directed to underwater welding of the ends of reinforcing bar cages provided at the joint between a leading underground wall and a trailing underground wall by underwater welding. This invention relates to a welding device for reinforcing bar cages that can be welded.
（発明の背景）
連続地中壁工法は、地中を掘削しつつ該掘削孔内に泥水
を満たし、次に鉄筋籠を掘削孔内に配置し、次に掘削孔
内にコンクリートを打設して泥水をコンクリートに置換
することにより地中壁を構築し、その後前記と同様の手
順を繰返すことにより先行地中壁に後行地中壁を打ち継
ぐようにしたものである。(Background of the invention) The continuous underground wall construction method involves filling the excavated hole with muddy water while excavating underground, then placing a reinforcing bar cage in the excavated hole, and then pouring concrete into the excavated hole. The underground wall is constructed by replacing the muddy water with concrete, and then the following steps are repeated to connect the preceding underground wall with the succeeding underground wall.
この種の連続地中壁においては、１工区毎に地中壁を順
次構築するため、各工区間の打ち継ぎ部での鉄筋籠の横
筋同士は一体化されていない。In this type of continuous underground wall, because the underground wall is built sequentially for each section, the horizontal bars of the reinforcing bar cages at the joints between each section are not integrated.
従って連続地中壁の強度がこの打ち継ぎ部で減殺される
慣れが生じていた。Therefore, the strength of the continuous underground wall was reduced at this joint.
この対策として、従来では ■隣り合う工区間の横筋同士をオーバーラツプさせる。As a countermeasure, conventionally ■Overlap horizontal bars in adjacent sections.
あるいは■実開昭４８−４１１号公報、特開昭５２−３
８７２３号公報、特開昭５９−１０２０１４号公報に示
すように横筋間を継ぎ手金物を介して機械的に連結する
。Or ■ Utility Model Publication No. 48-411, Japanese Patent Application Publication No. 52-3
As shown in Japanese Patent Application Laid-open No. 8723 and Japanese Patent Application Laid-open No. 59-102014, the transverse reinforcements are mechanically connected via joint hardware.
ことで解決を図っていた。I was trying to solve this problem.
（発明が解決しようとする問題点）
しかしながら、■の構造にあっては打ち継ぎ部において
横筋同士の応力伝達は全くなく、依然として強度上の不
安は残る。(Problems to be Solved by the Invention) However, in the structure (2), there is no stress transmission between the horizontal reinforcements at the spliced portion, and there still remain concerns regarding strength.
また、■の構造にあっては、鉄筋間の建て込みに際して
充分な機械強度で結合しようとすると、継ぎ手金物量の
嵌合が困難となり、逆に嵌合を緩くした場合には横筋同
士の応力伝達が不連続となるため完全一体化とはならな
かった。In addition, in the structure (■), if an attempt is made to connect the reinforcing bars with sufficient mechanical strength, it will be difficult to fit the joint hardware, and conversely, if the fitting is loose, stress will be applied between the horizontal bars. Complete integration was not achieved because the transmission was discontinuous.
以上の機械的結合に代えて溶接により結合することも従
来から提案されている。In place of the mechanical connection described above, connection by welding has also been proposed.
こめ方法では、横筋同士の打ち継ぎ部分あるいは継ぎ手
金物を地中壁の一方の壁面の表面より露出させる構造と
し、連続地中壁構築後、地中壁の片面を掘削して壁面を
露出させた後、金属露出面を溶接するようにしている。In this method, the joints between horizontal reinforcements or joint hardware are exposed from the surface of one wall of the underground wall, and after constructing a continuous underground wall, one side of the underground wall is excavated to expose the wall surface. After that, the exposed metal surfaces are welded.
しかしながら、この方法では溶接後の後処理が面倒であ
る上に、一方の面の横筋同士しか溶接しないため、前記
と同様に強度上の不安があった。However, with this method, the post-treatment after welding is troublesome, and since only the horizontal stripes on one side are welded together, there are concerns about the strength as described above.
この発明は、鉄筋間の建て込み時に鉄筋間の幅方向両端
部同士の重合部を自動的に溶接でき、これによって打ち
継ぎ部の強度向上を図れるようにした溶接装置の提供を
目的とする。An object of the present invention is to provide a welding device that can automatically weld the overlapping portions of both ends of the reinforcing bars in the width direction when installing the reinforcing bars, thereby improving the strength of the spliced joint.
（問題点を解決するための手段） １前記目的を達成
するため、この発明は、先行工区の鉄筋間の端部と後行
工区の鉄筋間端部の重合部近傍における一方の鉄筋間の
幅方向両側に縦方向に沿って一対のガイドレールを設け
、該ガイドレールに沿って昇降可能にガイドされる昇降
台上に前記各重合部にトーチ端を向けた一対の水中溶接
トーチを設ける一方、地上部には用具を介して前記昇降
台と連結し、該用具を巻取１巻戻し操作して昇降台をＲ
降させるリフト装置を配置したことを特徴とする。(Means for Solving the Problems) 1 In order to achieve the above object, the present invention provides a method for reducing the width between one reinforcing bar in the vicinity of the overlapping part of the end between the reinforcing bars in the preceding work section and the end between the reinforcing bars in the following work section. A pair of guide rails are provided along the longitudinal direction on both sides of the direction, and a pair of underwater welding torches are provided on a lifting platform that is guided so as to be movable up and down along the guide rails, and a pair of underwater welding torches are provided with torch ends facing the respective overlapping parts, The above-ground part is connected to the lifting platform through a tool, and the lifting platform is rotated by winding and rewinding the tool.
It is characterized by the provision of a lift device for lowering the vehicle.
（作 用）
リフト装置を駆動し、昇降台を上昇または下降させつつ
水中トーチを駆動することによって、重合部は溶接され
、隣工区同士の鉄筋間は完全に一体化する。(Function) By driving the lift device and driving the underwater torch while raising or lowering the platform, the overlapping parts are welded and the reinforcing bars in adjacent sections are completely integrated.
（実施例）
以下、この発明の一実施例を図面を用いて詳細に説明す
る。(Example) Hereinafter, an example of the present invention will be described in detail using the drawings.
第１図、第２図はこの発明を適用した連続地中壁工法に
おける鉄筋間の建て込み工程を示す。Figures 1 and 2 show the construction process between reinforcing bars in the continuous underground wall construction method to which this invention is applied.
図において、鉄筋コンクリート製のガイドトレンチ１に
よって所定幅に位置決めされた区間内にはその幅で、所
定の長さの掘削孔２が形成されている。In the figure, an excavated hole 2 having a predetermined length and width is formed within a section positioned at a predetermined width by a guide trench 1 made of reinforced concrete.
掘削孔２の掘削手段としては、泥水を満たしつつパケッ
ト式その他の掘削機により掘削することで所定深度の掘
削孔２が完成する。The excavation hole 2 is completed at a predetermined depth by filling the excavation hole 2 with muddy water and using a packet type or other excavator.
そして、この掘削孔２内には鉄筋間が建て込まれる。Then, a reinforcing bar gap is built in this excavated hole 2.
また、第２図に示すように先行工区（Ａ＞内はコンクリ
ートが満たされ、泥水と置換され、前記鉄筋間３を一体
に埋設した地中壁４が完成している状態を示す。Further, as shown in FIG. 2, the preliminary construction area (A>) is filled with concrete and replaced with muddy water, and the underground wall 4 in which the reinforcing bars 3 are integrally buried is completed.
そして、先行工区（Ａ）と後行工区（８）との間には、
各工区（Ａ）、＜８）内に建て込まれた鉄筋間３の横ｗ
Ｊ３ａを貫通する堰板６を有する函体５によって囲われ
ており、先行工区（Ａ）側から突出した横筋３ａと、後
行工区（Ｂ）の後端部の横筋３ａは継ぎ手品７を介して
機械的に結合されている。And between the preceding work area (A) and the following work area (8),
Width of 3 between reinforcing bars built in each construction section (A), <8)
It is surrounded by a box 5 having a weir plate 6 that penetrates J3a, and the horizontal reinforcement 3a protruding from the preceding work section (A) side and the horizontal reinforcement 3a at the rear end of the following work section (B) are connected via the joint product 7. mechanically connected.
前記継ぎ手品７は第３．第４図に示す如く一方の横鉄筋
３ａの両端部にあって、各横鉄筋３ａを縦一列に結ぶＳ
字形継手金具８と、他方の横鉄筋３ａの両端にあって、
これらを縦一列に固着したＬ字形継手金具とからなって
いる。The joint item 7 is the third. As shown in Fig. 4, S is located at both ends of one horizontal reinforcing bar 3a and connects each horizontal reinforcing bar 3a in a vertical line.
At both ends of the shape joint fitting 8 and the other horizontal reinforcing bar 3a,
It consists of an L-shaped joint fitting in which these are fixed in a vertical line.
そして、前記先行工区（Ａ）側の鉄筋篭３と後行工区（
Ｂ）側の鉄筋間３とを連結するには１−字形継手金具９
をＳ字形継手金具８上に嵌合し、その状態で鉛直にａｌ
ｌ！！３を下せば両者が嵌め合うことで礪械的に結合す
る。Then, the reinforcing bar cage 3 on the preceding work section (A) side and the following work section (
To connect the reinforcing bars 3 on the B) side, use the 1-shaped joint fitting 9.
Fit onto the S-shaped joint fitting 8, and in that state vertically align the
l! ! If 3 is lowered, the two will fit together and be mechanically connected.
また、前記Ｓ字形継手金具８の内側には第５図に示すよ
うに向かい合うかたちでＴ彫金具からなるガイドレール
１０が縦−直線に溶接されている。Furthermore, guide rails 10 made of T-carved metal fittings are vertically and linearly welded to the inside of the S-shaped joint fitting 8 in such a manner that they face each other as shown in FIG.
そして、このガイドレール１０には昇降台１１が昇降可
能に装着される。昇降台１１は第１図の如くガイドトレ
ンチ１上をまたぐようにして架台１３上に固定されたリ
フト装置１２に対し、チ、工一ン１４を介して連結され
、チェーン１４の巻上げおよび巻戻しによって上下昇降
可能となっている。An elevating table 11 is mounted on the guide rail 10 so as to be movable up and down. As shown in FIG. 1, the lifting platform 11 is connected to a lifting device 12 fixed on a pedestal 13 so as to straddle the guide trench 1 through a tool 14, and is capable of hoisting and unwinding the chain 14. It can be raised and lowered by.
前記昇降台１１は両ガイドレール１０間にあって、上下
平行に配置された一対の横フレーム１６と、横フレーム
１６間を連結するＸ字形交叉フレーム１８と、前記横フ
レーム１６と交叉フレーム１８との接合部に軸１９を介
して揺動可能に配置されたイコライザーフレーム２０と
、各イコライザーフレームの上下に前記ガイドレール１
０を挾んで対向するそれぞれ一対のガイドローラ２２と
を備えている。The lifting platform 11 is located between both guide rails 10 and includes a pair of horizontal frames 16 arranged vertically in parallel, an X-shaped cross frame 18 connecting the horizontal frames 16, and a joint between the horizontal frames 16 and the cross frame 18. An equalizer frame 20 is arranged to be swingable through a shaft 19 at the top and bottom of each equalizer frame, and the guide rails 1 are arranged above and below each equalizer frame.
0, and a pair of guide rollers 22 facing each other with the rollers in between.
前記交叉フレーム１８はその中心軸２４を中心にして１
ｚ動可能となっており、また横フレーム１６の中央には
フレーム幅調整器具２６が取付けられている。The cross frame 18 has a central axis 24 as its center.
Z-movement is possible, and a frame width adjustment device 26 is attached to the center of the horizontal frame 16.
従って、昇降台１１は交叉フレーム１８およびフレーム
幅調整具２６による伸縮作用によって、前記ガイドレー
ル１０間の縦および横の平行度誤差を吸収するようにな
っている。Therefore, the elevating table 11 is adapted to absorb vertical and horizontal parallelism errors between the guide rails 10 by the expansion and contraction effects of the cross frame 18 and the frame width adjuster 26.
また、前記ガイドローラ２２０回転中心軸２２ａは図示
しないバネ手段を内蔵し、このバネ手段によってこのロ
ーラ端部を常時ガイドレール１０の中心位置側に付勢し
ており、これによって各ガイドレール１０間のねじれ等
の吸収を行なっている。Further, the rotation center shaft 22a of the guide roller 220 has a built-in spring means (not shown), and this spring means always urges the end of the roller toward the center position of the guide rail 10. It absorbs twists, etc.
そして、昇降台１１は前記中心軸２４に下端を一体的に
接合した品金具２８を介して前述のチェーン１４の下端
に連結している。The lifting platform 11 is connected to the lower end of the chain 14 via a metal fitting 28 whose lower end is integrally joined to the central shaft 24.
前記昇降台１１の上部側横フレーム１６の左右には水中
溶接トーチ３０が固定用ブラケット３２を介して固定さ
れている。Underwater welding torches 30 are fixed to the left and right sides of the upper horizontal frame 16 of the lifting table 11 via fixing brackets 32.
固定用ブラケット３２は横フレーム側に固定される長さ
調整用の第１ブラケツト３４の先端に角度調整部３５を
介して角度調整用の第２ブラケツト３６を設けたもので
、水中溶接トーチ３ｏはこの第２ブラケツト３６の先端
に所定の角度をなして固定され、そのトーチ端を前記Ｓ
形継手金具８とＬ形継手金具９の入隅部接合縁に対向し
ている。The fixing bracket 32 has a first bracket 34 for adjusting the length fixed to the horizontal frame, and a second bracket 36 for adjusting the angle provided at the tip of the bracket 34 for adjusting the angle via an angle adjusting part 35. It is fixed to the tip of the second bracket 36 at a predetermined angle, and the torch end is connected to the S
It faces the joining edge of the inner corner of the joint fitting 8 and the L-shaped fitting 9.
この水中溶接トーチ３０の取付は調整方法としては、前
記第１ブラケツト３４に形成された長孔３４ａに螺合さ
れた取付用ネジ３４ｂを緩めて取付長さを調整し、取付
ネジ３４ｂを固定した後前記角変調整部３５を回動させ
ることによりトーチ端を前記入隅部に向けることができ
る。The adjustment method for installing the underwater welding torch 30 is to adjust the installation length by loosening the installation screw 34b screwed into the elongated hole 34a formed in the first bracket 34, and then fixing the installation screw 34b. By rotating the rear angle adjustment section 35, the torch end can be directed toward the corner.
前記水中溶接トーチ３０の後端には供給コード３８に接
続されている。この供給コード３８は前記リフト装置１
２側からチェーン１４の巻上げおよび巻戻し速度に同期
して巻上げおよび巻取られるものである。A supply cord 38 is connected to the rear end of the underwater welding torch 30 . This supply cord 38 is connected to the lift device 1
The chain 14 is wound up and taken up from the second side in synchronization with the winding and unwinding speed of the chain 14.
次に、前記リフト装置１２の内部構成について再び第１
図を用いて説明する。Next, the internal structure of the lift device 12 will be explained in the first section again.
This will be explained using figures.
リフト装置１２の中央部には前記チェーン１４を巻上げ
１巻戻し駆動するためのスプロケット４０が設けられ、
その巻取り端にチェーン巻取り礪４２が配置されている
。A sprocket 40 is provided in the center of the lift device 12 to drive the chain 14 up and back once.
A chain winding recess 42 is arranged at the winding end.
また、前記供給コード３８はリフト装置１２の左右に設
けたプーリー４４．アイドラプーリー４６および駆動用
キャプスタン４８を経てり°７ト装置１２の側部に耐直
固定されたワイヤ供給装置５０に接続している。Further, the supply cord 38 is connected to pulleys 44 provided on the left and right sides of the lift device 12. It is connected via an idler pulley 46 and a drive capstan 48 to a wire feeder 50 rigidly fixed to the side of the tort device 12.
ワイヤ供給袋＠５０はそれぞれ燃料ガスボンベ５２に接
続している。Each wire supply bag @50 is connected to a fuel gas cylinder 52.
前記スプロケット４０およびキャプスタン４８およびワ
イヤ供給装置５０の駆動モータはリフト装置１２に設け
た専用パネル４３内に配置された制御部４３によってそ
れぞれ駆動制御される。The drive motors of the sprocket 40, capstan 48, and wire supply device 50 are each driven and controlled by a control section 43 disposed within a dedicated panel 43 provided in the lift device 12.
第６図はその制御部の原理構成を示すもので、６０は前
記スプロケットに設けたセンサーである。FIG. 6 shows the basic structure of the control section, and 60 is a sensor provided on the sprocket.
このセンサー６０は前記スプロケット４ｏがチェーン１
４の一つを搬送する毎にこれを検出してパルスを発生す
る。This sensor 60 indicates that the sprocket 4o is connected to the chain 1.
Each time one of 4 is conveyed, this is detected and a pulse is generated.
センサ６０からの出力は加減算器６２および速度変換器
６４に入力される。The output from sensor 60 is input to adder/subtractor 62 and speed converter 64.
加減算器６２はセンサの出力に応じて上昇位置から下降
位置までの間の距離を加減算するもので、この（直は表
示器６６によって表示される。また、速度変換器６４は
前記センサの１パルス毎の信号をクロックパルスで割っ
たものであり、その出力は表示器６８によって表示され
るとともに、比較器７０にも入力される。The adder/subtractor 62 adds or subtracts the distance from the raised position to the lowered position according to the output of the sensor, and this distance is displayed on the display 66. The output is displayed by the display 68 and is also input to the comparator 70.
比較器７０の他方側入力端には設定器７２からの設定信
号が入力される。A setting signal from a setting device 72 is input to the other side input terminal of the comparator 70 .
この設定器７２の設定値は、前記昇降台１１の昇降速度
を水中溶接トーチ３０による溶接作業の最適速度に応じ
て出力するものであり、比較器７０では、現在の昇降台
１１の速度と設定器７２からの入力された速度信号とを
比較し、その差をＯに近付けるべくモータ駆動部７４を
駆動する。The setting value of this setting device 72 is to output the lifting speed of the lifting platform 11 according to the optimum speed of welding work by the underwater welding torch 30. The motor drive section 74 is driven to bring the difference closer to O.
モータ駆動部７４は前記スプロケット４０用の駆動モー
タＭ１キヤプスタン駆動用モータＭ２およびワイヤ供給
装置５０の駆動モータＭ３とを前記比較器７０からの信
号に応じて駆動制御する。The motor drive section 74 drives and controls the drive motor M1 for the sprocket 40, the capstan drive motor M2, and the drive motor M3 of the wire supply device 50 in accordance with the signal from the comparator 70.
なお、前記加減算器６２の値は上下限設定器７６に入力
され、ここで、設定された値と常に比較されている。す
なわち、昇降台１１が地表面からある状態から前記モー
タ駆動部７４を駆動して各モーラダＭｌ 、Ｍ２ 、Ｍ
３を正転させるが、加減算器６２の値が掘削孔２の°孔
底に至った状態では、上下限設定器７６からは直ちに反
転指令が出力され、モータ駆動部７４が各モータＭ１〜
Ｍ３間を反転させ、チェーン１４および供給コード３８
を巻上げつつ昇降台１１を上昇させる。なお、この状態
で同時に図示しない点火装置等を介して水中１・−チ３
０より溶接ワイヤとともに溶接ガスを噴出させ、前記継
手金具８，９の入隅部を溶接するものである。この溶接
速度と上昇速度とは前述の如く比較入力によりモータＭ
１ 、Ｍ２ 、Ｍ３をそれぞれ駆動制御することによっ
て良好な溶接を期待できる。The value of the adder/subtractor 62 is input to an upper/lower limit setter 76, where it is constantly compared with the set value. That is, from the state where the lifting platform 11 is above the ground surface, the motor drive unit 74 is driven to move each morada Ml, M2, M.
However, when the value of the adder/subtractor 62 reaches the bottom of the borehole 2, the upper and lower limit setter 76 immediately outputs a reversal command, and the motor drive unit 74 rotates each motor M1 to M1.
Reverse M3 and connect chain 14 and supply cord 38
The lifting platform 11 is raised while hoisting up. In addition, in this state, at the same time, the underwater 1, - 3, etc.
Welding gas is ejected from the welding wire along with the welding wire to weld the inner corners of the fittings 8 and 9. The welding speed and rising speed are determined by the comparison input of the motor M as described above.
Good welding can be expected by controlling the drive of 1, M2, and M3, respectively.
そして、昇降台１１が最上昇位置に位置すると、上下限
設定器７６からはモータ駆動部７４に対し停止指令出力
が出力され、モータＭｌ 、 Ｍ２ 、 Ｍ３および溶
接トーチ３０の稼働は停止する。When the lifting platform 11 is at the highest position, the upper and lower limit setter 76 outputs a stop command to the motor drive section 74, and the motors M1, M2, M3 and the welding torch 30 stop operating.
（発明の効果）
以上実施例により詳細に説明したように、この発明によ
る連続地中壁工法における鉄筋籠の溶接装置では、鉄筋
籠の建て込み時において、両者の両側の重合部を自動溶
接できるため、従来の横筋をオーバーラツプさせるか、
継手金具を介して機械的接合を行なう、あるいは連続地
中壁構築後に壁面に露出した金属部分を溶接する場合に
比べて、打ち継ぎ部における大幅な強度の向上を期待で
きる。(Effects of the Invention) As explained in detail in the examples above, the reinforcing bar cage welding device for the continuous underground wall construction method according to the present invention can automatically weld the overlapping portions on both sides when the reinforcing bar cage is erected. Therefore, whether to overlap the conventional transverse muscles or
Compared to mechanically joining via fittings or welding exposed metal parts on the wall surface after constructing a continuous underground wall, it is expected that the strength of the joint will be significantly improved.
また、鉄筋籠の接合時において両端重合部を自動溶接で
きるので、溶接作業などの手間がかからず、設置および
撤去作業のみで容易に実施することができるものとなる
。In addition, since the overlapping portions at both ends can be automatically welded when joining the reinforcing bar cages, it does not take much time and effort to perform welding work, and the work can be easily carried out by simply installing and removing the cages.
第１図はこの発明を適用した連続地中工法における鉄筋
能建て込み時を示す縦断面図、第２図は第１図における
Ｉ−ＩＦ線線面面図第３図はこの発明の要部を示す部分
平面図、第４図は同要部斜視図、第５図は昇降台の全体
を示す側面図、第６図はリフト装置の制御部の電気的構
成を示すブロック図である。
２・・・・・・掘削孔 ３・・・・・・鉄筋
籠３ａ・・・横 筋 ° ４・・目・・地中壁
７・・・・・・継手部 ８・旧・−Ｓ字形継
手金具９・・・・・・Ｌ字形継手金具 １０・・・ガ
イドレール１１・・・昇降台 １２・・・リ
フト装置１４・・・チェーン（用具） ３０・・・水中
溶接トーチ３８・・・供給コードFig. 1 is a vertical cross-sectional view showing reinforcing bars installed in the continuous underground construction method to which this invention is applied, Fig. 2 is a plane view taken along the I-IF line in Fig. 1, and Fig. 3 is a main part of the present invention. 4 is a perspective view of the essential parts, FIG. 5 is a side view showing the entire lifting platform, and FIG. 6 is a block diagram showing the electrical configuration of the control section of the lift device. 2...Drilling hole 3...Rebar cage 3a...Horizontal reinforcement ° 4...Eye...Underground wall 7...Joint part 8.Old...-S shape Joint fittings 9... L-shaped fittings 10... Guide rail 11... Elevating platform 12... Lift device 14... Chain (tool) 30... Underwater welding torch 38... supply code
Claims (1)
に鉄筋籠を掘削孔内に配置し、次に掘削孔内にコンクリ
ートを打設して泥水をコンクリートに置換することによ
り地中壁を構築し、その後前記と同様の手順を繰返すこ
とにより先行地中壁に後行地中壁を打ち継ぐようにした
連続地中壁工法において、先行工区の鉄筋籠の端部と後
行工区の鉄筋籠端部との重合部近傍における一方の鉄筋
籠の幅方向両側に縦方向に沿って一対のガイドレールを
設け、該ガイドレールに沿って昇降可能にガイドされる
昇降台上に前記各重合部にトーチ端を向けた一対の水中
溶接トーチを設ける一方、地上部には用具を介して前記
昇降台と連結し、該用具を巻取、巻戻し操作して昇降台
を昇降させるリフト装置を配置したことを特徴とする連
続地中壁工法における鉄筋籠の溶接装置。(1) Filling the borehole with muddy water while excavating underground, then placing a reinforcing bar cage in the borehole, and then placing concrete in the borehole to replace the muddy water with concrete. In the continuous underground wall construction method, in which an underground wall is built and then a trailing underground wall is connected to the preceding underground wall by repeating the same steps as above, the ends of the reinforcing bar cage in the preceding section and the rear A pair of guide rails are provided along the longitudinal direction on both sides of one reinforcing bar cage in the width direction near the overlapped part with the end of the reinforcing bar cage in the work area, and a lifting platform that is guided so as to be movable up and down along the guide rails is provided. A pair of underwater welding torches with the torch ends facing each of the overlapping parts is provided, while the above-ground part is connected to the lifting platform via a tool, and the lifting platform is raised and lowered by winding and unwinding the tool. A welding device for reinforcing bar cages in a continuous underground wall construction method, characterized by the arrangement of a lift device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9549186A JPS62253816A (en) | 1986-04-24 | 1986-04-24 | Welder for reinforcing bar cage in continuous underground wall construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9549186A JPS62253816A (en) | 1986-04-24 | 1986-04-24 | Welder for reinforcing bar cage in continuous underground wall construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62253816A true JPS62253816A (en) | 1987-11-05 |
| JPH0371532B2 JPH0371532B2 (en) | 1991-11-13 |
Family
ID=14139068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9549186A Granted JPS62253816A (en) | 1986-04-24 | 1986-04-24 | Welder for reinforcing bar cage in continuous underground wall construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62253816A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522204A (en) * | 2016-11-30 | 2017-03-22 | 上海市机械施工集团有限公司 | Double-layer four-wheel groove milling device and milling method based on same |
| CN109514114A (en) * | 2018-11-15 | 2019-03-26 | 五冶集团上海有限公司 | One kind is for storing concrete test block fabrication of reinforcing cage method |
| CN110670585A (en) * | 2019-10-23 | 2020-01-10 | 中建七局安装工程有限公司 | Pile extension construction method |
| CN113245784A (en) * | 2021-06-29 | 2021-08-13 | 中建五局安装工程有限公司 | Pipe cage pipeline welding construction method |
-
1986
- 1986-04-24 JP JP9549186A patent/JPS62253816A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522204A (en) * | 2016-11-30 | 2017-03-22 | 上海市机械施工集团有限公司 | Double-layer four-wheel groove milling device and milling method based on same |
| CN106522204B (en) * | 2016-11-30 | 2018-09-18 | 上海市机械施工集团有限公司 | A kind of bilayer four-wheel slotting attachment and its method for milling |
| CN109514114A (en) * | 2018-11-15 | 2019-03-26 | 五冶集团上海有限公司 | One kind is for storing concrete test block fabrication of reinforcing cage method |
| CN110670585A (en) * | 2019-10-23 | 2020-01-10 | 中建七局安装工程有限公司 | Pile extension construction method |
| CN110670585B (en) * | 2019-10-23 | 2021-03-26 | 中建七局安装工程有限公司 | Pile extension construction method |
| CN113245784A (en) * | 2021-06-29 | 2021-08-13 | 中建五局安装工程有限公司 | Pipe cage pipeline welding construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0371532B2 (en) | 1991-11-13 |
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