JPH0152637B2 - - Google Patents
Info
- Publication number
- JPH0152637B2 JPH0152637B2 JP12008483A JP12008483A JPH0152637B2 JP H0152637 B2 JPH0152637 B2 JP H0152637B2 JP 12008483 A JP12008483 A JP 12008483A JP 12008483 A JP12008483 A JP 12008483A JP H0152637 B2 JPH0152637 B2 JP H0152637B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- steel strip
- flat steel
- uninverted
- extension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 42
- 239000010959 steel Substances 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、管路の一端に未反転チユーブの先端
を固定し、流体圧と未反転チユーブ内に挿入した
平帯鋼を管路の出側から牽引することにより管路
内に未反転チユーブを反転進行させて管路の内壁
面にチユーブのライニング膜を形成するチユーブ
反転ライニング工法に関するものである。Detailed Description of the Invention The present invention fixes the tip of an uninverted tube to one end of the conduit, and uses fluid pressure to pull a flat steel strip inserted into the uninverted tube from the exit side of the conduit. The present invention relates to a tube inversion lining method in which a tube lining film is formed on the inner wall surface of the conduit by inverting an uninverted tube into the conduit.
ガスの導管（管路）内にライニング膜を形成し
てガス洩れを防止する工法の一つとして、チユー
ブライニング工法が提案されている。第１図はこ
の工法の一例の概略を示すもので、導管０１の一
端入口側にライニング用の未反転チユーブ０２の
一端を固定し、反転器と称される器内に巻き込ま
れ、偏平に押し潰された未反転チユーブ０２内に
反転器０１内から流体圧を負荷すると共に未反転
チユーブ０２内に挿入されたテグス等の牽引ロー
プ０３を導管０１の出側からウインチで牽引し、
第１図に示すように管内を反転進行させるもので
ある。 A tube lining method has been proposed as one method of forming a lining film inside a gas conduit to prevent gas leakage. Figure 1 shows an outline of an example of this construction method, in which one end of a non-inverted tube 02 for lining is fixed to the entrance side of one end of a conduit 01, and the tube is rolled up in a container called an inverter and pushed flat. Fluid pressure is applied from inside the inverter 01 into the crushed uninverted tube 02, and a pull rope 03 such as a wire rod inserted into the uninverted tube 02 is pulled by a winch from the exit side of the conduit 01.
As shown in FIG. 1, the tube is moved backwards inside the tube.
上記牽引ロープ０３を使用したチユーブ反転ラ
イニング工法は小径管であつて、曲り部の多い管
路用として開発されたものであるが、第３図に示
すように管路内にエルボ或いはソケツト等を利用
した接続部があると共にこの接続部に管路の切断
に際してできたバリ０４が存すると、牽引ロープ
０３に張力が作用したとき、このバリ０４にてロ
ープ０３が切断されたり、ロープにバリが喰い込
んで牽引力が未反転チユーブ側に伝わらないとい
う問題がある。 The tube inversion lining method using the above-mentioned traction rope 03 was developed for small-diameter pipes with many bends, but as shown in Fig. If there is a used connection and there is a burr 04 created when the pipe was cut at this connection, when tension is applied to the towing rope 03, the rope 03 may be cut by the burr 04 or the rope may have a burr. There is a problem in that the traction force is not transmitted to the uninverted tube side because it digs in.
そこで、この問題を解決する手段として、バリ
に負けない細いピアノ線を撚り合わせたワイヤー
の場合でも、素線は細いためにバリで折れてしま
い、伝達率が悪くなり所要の伝達力が伝えられな
くなると共に撚り線であるため張力がかかると撚
りの戻りが生じ、反転がスムーズに行なわれない
という問題がある。又、管路の曲り部であつて反
転の終了した部分においてはワイヤーが反転した
チユーブ及び未反転チユーブを擦るため、チユー
ブに擦り傷をつけてしまうという問題もある。更
にその他の提案として、未反転チユーブ内に平帯
鋼を挿入するバリに影響されない牽引手段の提案
もあるが、平帯鋼に撚れがあるとこの撚れにより
平帯鋼のエツジで反転したチユーブに傷をつけた
り、撚れ部に未反転チユーブが巻きついたりして
平帯鋼の場合には実施が不可能である。 Therefore, as a means to solve this problem, even in the case of a wire made by twisting thin piano wires that are resistant to burrs, the wires are thin and will break due to burrs, resulting in poor transmission rate and not being able to transmit the required transmission force. In addition, since the wire is a stranded wire, when tension is applied, the twist will untwist and the reversal will not be carried out smoothly. Furthermore, at the bent portion of the conduit where the inversion has been completed, the wire rubs the inverted tube and the uninverted tube, resulting in the problem of scratches on the tube. Furthermore, there is another proposal for a traction method that is not affected by burrs by inserting a flat steel strip into an uninverted tube, but if the flat steel strip is twisted, the twist causes the flat strip to be reversed at the edge. This is impossible in the case of flat steel strips because it would damage the tubes or cause the uninverted tubes to wrap around the twisted portions.
本発明は上記平帯鋼を未反転チユーブ内に挿入
してこの平帯鋼を牽引する工法において、平帯鋼
を撚れのない状態で牽引することのできる工法に
ついて新規な提案を行うものである。 The present invention proposes a new method for pulling the flat steel strip in an untwisted state by inserting the flat steel strip into an uninverted tube. be.
以下本発明の構成を詳記すると、被ライニング
管路の入口側に平帯鋼を挿入した未反転チユーブ
の先端を固定し、流体圧と未反転チユーブ内に挿
入した平帯鋼を出口側から牽引することにより管
路内に未反転チユーブを反転進行させて管路の内
壁面にチユーブのライニング膜を形成するチユー
ブ反転ライニング工法において、前記未反転チユ
ーブ内に挿入した平帯鋼の先端側を管路の長さと
略等しくなる程度延長して延長部を形成し、次に
管路内にピグを用いて柔軟性に富んだ先導平帯鋼
を通線し、次にこの先導平帯鋼の端に前記未反転
チユーブ側の平帯鋼の延長部端を接続して先導平
帯鋼を牽引することにより平帯鋼の延長部を管路
内に引き込み、次にこの延長部をウインチにて直
接牽引することにより未反転チユーブ内に挿入し
た平帯鋼側に対して、牽引力を伝達するチユーブ
反転ライニング工法である。 The configuration of the present invention will be described in detail below. The tip of a non-inverted tube with a flat steel strip inserted into the inlet side of the pipeline to be lined is fixed, and the fluid pressure is applied to the flat steel strip inserted into the non-inverted tube from the outlet side. In the tube reversal lining method, in which an uninverted tube is reversed into a conduit by being pulled and a lining film of the tube is formed on the inner wall surface of the conduit, the tip side of the flat steel strip inserted into the uninverted tube is An extension is formed by extending the length of the conduit to a length approximately equal to the length of the conduit, and then a highly flexible leading flat strip is passed through the conduit using a pig. Connect the extension end of the flat strip steel on the non-inverted tube side to the end and pull the leading flat strip steel to draw the extension part of the flat steel strip into the pipe, and then pull this extension part with a winch. This is a tube inversion lining construction method that transmits traction force to the flat steel strip inserted into the uninverted tube by direct traction.
第４図は上記本発明を実施するために構成され
た未反転チユーブを示し、未反転チユーブ１内に
は鋼管、鋳鉄管よりも硬度の高い高硬度平帯鋼２
が挿入されている。又、この平帯鋼２の先端側に
は被ライニング管路３の長さ第５図L′とほゞ等し
い長さＬだけ延長した延長部４が形成してある。 FIG. 4 shows a non-inverted tube configured to carry out the above-mentioned invention, and inside the non-inverted tube 1 there is a steel pipe, a high hardness flat steel strip 2 which is harder than a cast iron pipe.
has been inserted. Further, on the tip side of the flat steel strip 2, an extension portion 4 is formed which extends by a length L which is approximately equal to the length L' in FIG. 5 of the pipe line 3 to be lined.
未反転チユーブ１は以上の如き構成であつて、
これを用いて反転ライニングを行なう場合には、
先ず管路３内に空気圧により進行するピグを利用
して柔軟性に富んだ先導平帯鋼５を通線し、次に
管路３の入口側において反転器から引き出した未
反転チユーブ１側の平帯鋼２の延長部４と先導平
帯鋼５を接続し、先導平帯鋼５を管路３の出口側
において引いて延長部４を管路３内に撚れが生じ
ないように気をつけて引き込む。 The non-inverted tube 1 has the above configuration,
When performing inversion lining using this,
First, the highly flexible leading flat steel strip 5 is threaded into the pipe line 3 using a pig advanced by air pressure, and then the uninverted tube 1 side pulled out from the inverter at the entrance side of the pipe line 3 is passed through. Connect the extension 4 of the flat steel strip 2 and the leading flat steel strip 5, and pull the leading flat steel strip 5 at the outlet side of the pipe line 3, taking care not to twist the extension part 4 inside the pipe line 3. and pull it in.
この引き込みが終了したなら、延長部４をウイ
ンチにかけ、延長部４を介して未反転チユーブ１
内の平帯鋼２に牽引力を伝達し、流体圧との相乗
作用で管路３内に未反転チユーブ１を反転進行さ
せるもので、第６図はこの反転進行中の一部を示
す断面図である。 When this retraction is completed, the extension part 4 is winched and the uninverted tube 1 is passed through the extension part 4.
Traction force is transmitted to the flat steel strip 2 inside the pipe, and the uninverted tube 1 is reversed into the pipe line 3 by a synergistic effect with fluid pressure. Fig. 6 is a cross-sectional view showing a part of this reversal in progress. It is.
本発明は以上のように柔軟性に富んだ先導平帯
鋼を利用して管路内に通線するから、空気圧とピ
グを利用して曲り部の多い管路でも容易に通線作
業ができると共に平帯鋼のために管路内のバリに
も影響されない。 As described above, the present invention utilizes a highly flexible lead flat steel strip to thread the wire into the pipe, so it is possible to easily thread the wire even in a pipe with many bends using air pressure and pigs. Also, since it is made of flat strip steel, it is not affected by burrs inside the pipe.
又、先導平帯鋼は断面偏平のため、管路内にピ
グを用いて撚れることなく通線が可能である。次
に、この撚れのない先導平帯鋼に未反転チユーブ
側の平帯鋼の延長部を接続して管路内に引き込む
ものであるから、この延長部には引き込み時に撚
れは生じない。 Further, since the leading flat steel strip has a flat cross section, it is possible to run the wire into the pipe without twisting it using a pig. Next, the extension of the flat steel strip on the uninverted tube side is connected to this untwisted lead flat steel strip and drawn into the pipe, so no twist occurs in this extension when it is drawn in. .
そして、上記のようにして撚れのない状態で引
き込まれた延長部をウインチで直接牽引するの
で、未反転チユーブ内の平帯鋼側にも撚れは生じ
ない。 Since the extended portion pulled in without twisting as described above is directly pulled by a winch, twisting does not occur on the flat steel strip side in the uninverted tube.
よつて、平帯鋼を牽引用として使用し、管路内
のバリに対抗し、撚れのない状態で平帯鋼を牽引
しながら反転進行ができるので、従来実施の不可
能であつた平帯鋼を未反転チユーブ内に牽引用と
して挿入したチユーブ反転ライニング工法の実施
が可能となる。 Therefore, flat steel strips can be used for traction, countering burrs in the pipeline, and can be reversed while being pulled in an untwisted state. It becomes possible to implement the tube inversion lining method in which a steel strip is inserted into an uninverted tube for traction.
第１図は従来の牽引ロープ使用のチユーブ反転
ライニング工法の説明図、第２図はＡ―Ａ線断面
図、第３図は管路内のバリ部の説明図、第４図は
本発明工法に使用される未反転チユーブと平帯鋼
の説明図、第５図は管路の説明図、第６図は本発
明工法の説明図である。
１……未反転チユーブ、２……平帯鋼、３……
管路、４……延長部、５……先導平帯鋼。
Figure 1 is an explanatory diagram of the conventional tube inversion lining method using a traction rope, Figure 2 is a cross-sectional view taken along line A-A, Figure 3 is an explanatory diagram of the burr in the pipe, and Figure 4 is the method of the present invention. Fig. 5 is an explanatory view of the pipe line, and Fig. 6 is an explanatory view of the construction method of the present invention. 1...Uninverted tube, 2...Flat steel strip, 3...
Pipeline, 4...extension part, 5...leading flat steel strip.
Claims (1)
た未反転チユーブの先端を固定し、流体圧と未反
転チユーブ内に挿入した平帯鋼を出口側から牽引
することにより管路内に未反転チユーブを反転進
行させて管路の内壁面にチユーブのライニング膜
を形成するチユーブ反転ライニング工法におい
て、前記未反転チユーブ内に挿入した平帯鋼の先
端側を管路の長さと略等しくなる程度延長して延
長部を形成し、次に管路内にピグを用いて柔軟性
に富んだ先導平帯鋼を通線し、次にこの先導平帯
鋼の端に前記未反転チユーブ側の平帯鋼の延長部
端を接続して先導平帯鋼を牽引することにより平
帯鋼の延長部を管路内に引き込み、次にこの延長
部をウインチにて直接牽引することにより未反転
チユーブ内に挿入した平帯鋼側に対して牽引力を
伝達するチユーブ反転ライニング工法。1. Fix the tip of an uninverted tube with a flat steel strip inserted into the inlet side of the pipeline to be lined, and use fluid pressure to pull the flat steel strip inserted into the uninverted tube from the outlet side to line the pipeline. In the tube inversion lining method in which a tube lining film is formed on the inner wall surface of the conduit by inverting the inverted tube, the length of the flat steel strip inserted into the uninverted tube is approximately equal to the length of the conduit. Extend to form an extension, then run a flexible lead flat steel strip into the pipe using a pig, and then attach the flat lead steel strip on the non-inverted tube side to the end of the lead flat steel strip. The extension of the flat steel strip is drawn into the pipeline by connecting the ends of the extension of the steel strip and pulling the leading flat steel strip, and then the extension of the steel strip is directly pulled with a winch to draw it into the uninverted tube. A tube inversion lining method that transmits traction force to the flat steel strip inserted into the tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12008483A JPS6014681A (en) | 1983-07-01 | 1983-07-01 | Method of construction of tube turn-over lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12008483A JPS6014681A (en) | 1983-07-01 | 1983-07-01 | Method of construction of tube turn-over lining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6014681A JPS6014681A (en) | 1985-01-25 |
| JPH0152637B2 true JPH0152637B2 (en) | 1989-11-09 |
Family
ID=14777506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12008483A Granted JPS6014681A (en) | 1983-07-01 | 1983-07-01 | Method of construction of tube turn-over lining |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6014681A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4726535B2 (en) * | 2005-05-02 | 2011-07-20 | 東京瓦斯株式会社 | Method for inserting a flexible cylindrical body into a conduit |
-
1983
- 1983-07-01 JP JP12008483A patent/JPS6014681A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6014681A (en) | 1985-01-25 |
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