JPS6128629A - Repairing method for underground pipeline - Google Patents

Repairing method for underground pipeline

Info

Publication number
JPS6128629A
JPS6128629A JP14899984A JP14899984A JPS6128629A JP S6128629 A JPS6128629 A JP S6128629A JP 14899984 A JP14899984 A JP 14899984A JP 14899984 A JP14899984 A JP 14899984A JP S6128629 A JPS6128629 A JP S6128629A
Authority
JP
Japan
Prior art keywords
pipeline
cylinder
head
cable
underground
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
Application number
JP14899984A
Other languages
Japanese (ja)
Other versions
JPH0368974B2 (en
Inventor
Motoyuki Koga
基之 古賀
Akira Shimada
晃 島田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hakko Co Ltd
Original Assignee
Hakko Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hakko Co Ltd filed Critical Hakko Co Ltd
Priority to JP14899984A priority Critical patent/JPS6128629A/en
Publication of JPS6128629A publication Critical patent/JPS6128629A/en
Publication of JPH0368974B2 publication Critical patent/JPH0368974B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/18—Appliances for use in repairing pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

PURPOSE:To repair a pipeline to enable a cable to be led-in, by a method wherein a cylindrical apparatus consisting of a propeller head, a cylinder, a rubber collar and a pressure-proof hose is led into the pipeline prior to the insertion of the cable. CONSTITUTION:A traction wire 2 is inserted into an underground pipeline A through one side manhole to the other side manhole, and when the wire 2 is tracked, then a cylindrical apparatus consisting of a propeller head 1, a cylinder 4, rubber collar 10 and a pressure-proof hose 8 is led into the pipeline A. And when the propeller head 1 hits a bulging section X in the pipeline a, then compressed air is fed into the cylinder 4 via the pressure-proof hose 8 and the bulging section X is stuck by the propeller head 1 and is expanded outside. And prior to the insertion of a cable, the cylindrical apparatus is inserted into the pipeline and the bulgind section X in the pipeline is forcibly corrected and the pipeline is repaired to enable the cable to be led-in.

Description

【発明の詳細な説明】[Detailed description of the invention]

【産業上の利用分野１ 本発明は、地下に布設された電気通信用ケーブル等の引
込み管路となる地下管路の補修工法に関するもので、詳
しくは布設後の経年変化によって管本体が折損あるいは
管継手部が離脱する等して段違い等を生じケーブルの引
込みが不通になった不良個所の管路を、埋設状態のまま
で矯正し、ケーブル等を引ぎ込む空間を確保しようとす
る補修工法に関するものである。 【発明の技術的課題１ この秤の地下管路は、通常、複数本の管体をマンホール
間にわたって上下に複数段、左右に複数列、集合整列し
た形態でもって道路下などの地下に布設しであるもので
、最初の布設施工に際して将来、増設が見込まれている
余分の管路を同時に布設しておき、配線すべきケーブル
をその空管路となっている任意の管路を選んで引込み布
設する形態を採っている。 ところで、このような地下管路は、布設後の経年におい
て、地盤のゆるみ、振動などで管本体が折れ曲ったり、
あるいは折損により段違い状態を生ずることがある。ま
た、管継手部についても同じ理由で、接合部が外れ現象
を起して折れ曲り状態１段違い状態になることがあり、
また他の工事に伴なう繋岩機や掘削機の爪等で管本体が
局部的に破損されて偏平変形を起したり、また、局部的
　　　′に内側に窪むなどの不良個所が出現し、空の地
下管路に対して、新たにケーブルを引込む場合、ケーブ
ルの引込みが不能になる等の不都合があった。 【発明の目的１ 本発明は、上記の不都合な点を課題としてこれを解決す
べく提案されたもので、ケーブルの引込みに先立って地
下管路内に器具を通し、挿通を妨げられ葛個所、いわゆ
る不良個所に到達した時、これを強制的に矯正して引込
み可能な状態に管路を補修するようにした地下管路の補
修工法を提供しようとするものである。 【発明の構成】 この目的のため、本発明は、先端にコーン形又はある特
殊な形状をもたせた推進ヘッドを具備するシリンダ装置
を、地下管路中に挿通し、推進ヘッドの進行が妨げられ
た時、上記シリンダに設けたピストンを移動して上記推
進ヘッドに前方への叩打作用を与え、上記推進ヘッドを
強制挿通させて管路の段違い等を矯正するようにしたこ
とを特徴とするものである。[Industrial Application Field 1] The present invention relates to a method for repairing underground conduits that serve as lead-in conduits for telecommunication cables, etc. laid underground.Specifically, the present invention relates to a method for repairing underground conduits that are used as lead-in conduits for telecommunication cables, etc. A repair method that attempts to straighten a faulty conduit where a pipe fitting has come off, resulting in unevenness, etc., making it impossible for cables to be drawn in, while still buried, in order to secure space for cables, etc. to be drawn in. It is related to. [Technical Problem 1 of the Invention] The underground conduit of this scale is usually constructed by laying a plurality of pipes underground, such as under a road, in multiple rows vertically and in multiple rows horizontally between manholes. Therefore, during the initial installation, extra conduits that are expected to be added in the future are laid at the same time, and the cables to be routed are drawn into any empty conduit. The method is to install the cables. By the way, over time after installation, underground pipes like this can bend due to loosening of the ground, vibration, etc.
Alternatively, an uneven state may occur due to breakage. Also, for the same reason, pipe joints may come off and become bent one step apart.
In addition, the pipe body may be locally damaged by the nails of tethering machines or excavators during other construction work, resulting in flattening deformation, or defects such as local depressions may appear. However, when new cables were to be drawn into an empty underground conduit, there were inconveniences such as the cable becoming impossible to pull in. OBJECTIVE OF THE INVENTION 1 The present invention was proposed to solve the above-mentioned disadvantages.The present invention aims to solve the above-mentioned disadvantages. The purpose of this invention is to provide a repair method for underground pipes in which when a so-called defective point is reached, the fault is forcibly corrected and the pipe is repaired to a state where it can be retracted. [Structure of the Invention] For this purpose, the present invention involves inserting a cylinder device equipped with a propulsion head having a cone shape or a certain special shape at the tip into an underground pipe, so that the progress of the propulsion head is prevented. When the piston is moved, a piston provided in the cylinder is moved to apply a forward striking action to the propulsion head, and the propulsion head is forcibly inserted through the pipe to correct unevenness in the conduit. It is.

【実　施　例】【Example】

以下、本発明の一実施例を図面を参照して具体的に説明
する。 ここで使用される器具は、第１図にみられるように、先
端にコーン形の推進ヘッド１を備えたもので、上記推進
ヘッド１の前傾には牽引用ワイヤ２が連結しである。上
記推進ヘッド１の後端にはハンマロッド３が連設してあ
り、上記ハンマロッド３はシリンダ４内に挿通しである
。上記ハンマロッド３の後端にはハンマヘッド５があり
、上記ハンマヘッド５とシリンダ４の前端壁との間には
圧縮コイルスプリング６が介装しである。上記シリンダ
４内にはピストン７が摺動自在に嵌挿してあり、シリン
ダ４の後端からは、上記シリンダ４内に、耐圧ホース８
を介してコンプレッサ９から例えば７ｋｇ／Ｇｍ２程度
の圧搾空気が供給できるようになっている。なお上記シ
リンダ４内に加えられた圧搾空気は、シリンダ４前端の
空隙から外部に漏出されるようになっている。また上記
シリンダ４の後部外周には、器具を既設管内の中心に保
持するための保持具としてゴムカラー１０が取付けられ
ている。 このような構成の器具を、第２図ないし第４図にみられ
るように、地下管路Ａ内に挿通するため地下管路Ａの１
区間であるマンホール８．０間について、−りのマンホ
ールＢから上記牽引用ワイヤ２を他方のマンホールＣに
挿通させる。しかして反対側マンホールＣからワイヤ２
を取出しウィン″ｆ１１などで牽引すると、上記器具は
、マンホールＢより地下管路Ａ中に導入される。 例えば第３図のような局部変形状態の不良個所にくると
、推進ヘッド１は内部膨出部分Ｘに当ってその進行を妨
げられる。この時、コンプレッサ９より耐圧ホース８を
介して圧搾空気がシリンダ４内に供給され、ピストン７
はハンマヘッド５を叩打する。これによって衝撃力が推
進ヘッド１に加わり、そのテーバ面で内部膨出部分Ｘを
外側に押し拡げる。この叩打の繰返しにより、強制的に
上記内部膨出部分Ｘを矯正して、推進ヘッド１を挿通さ
せるのである。偏平変形の部分も同様にして矯正する。 また第４図のように、段違い状態の管継手部の不良個所
については、上述のような推進ヘッド１への叩打作用で
、平行状態に矯正される。Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings. As shown in FIG. 1, the instrument used here is equipped with a cone-shaped propulsion head 1 at its tip, and a traction wire 2 is connected to the forward tilt of the propulsion head 1. A hammer rod 3 is connected to the rear end of the propulsion head 1, and the hammer rod 3 is inserted into the cylinder 4. A hammer head 5 is provided at the rear end of the hammer rod 3, and a compression coil spring 6 is interposed between the hammer head 5 and the front end wall of the cylinder 4. A piston 7 is slidably inserted into the cylinder 4, and a pressure hose 8 is inserted into the cylinder 4 from the rear end of the cylinder 4.
For example, about 7 kg/Gm2 of compressed air can be supplied from the compressor 9 via the compressor 9. The compressed air applied to the cylinder 4 is leaked to the outside from a gap at the front end of the cylinder 4. Further, a rubber collar 10 is attached to the rear outer periphery of the cylinder 4 as a holder for holding the instrument in the center of the existing pipe. In order to insert a device having such a configuration into underground pipe A, as shown in Figures 2 to 4,
Regarding the section between manholes 8.0, the traction wire 2 is inserted from one manhole B to the other manhole C. However, wire 2 from the opposite side manhole C
When the device is taken out and pulled by a winch "f11", the device is introduced into the underground conduit A through the manhole B. For example, when it comes to a defective area with local deformation as shown in FIG. It hits the exit part X and is blocked from advancing.At this time, compressed air is supplied from the compressor 9 into the cylinder 4 via the pressure hose 8, and the piston 7
hits the hammer head 5. As a result, an impact force is applied to the propulsion head 1, and its tapered surface pushes the internal bulge portion X outwardly. By repeating this tapping, the internal bulging portion X is forcibly corrected and the propulsion head 1 is inserted through it. The flat deformed portion is also corrected in the same manner. Further, as shown in FIG. 4, the defective portion of the pipe joint section which is in an uneven state is corrected to a parallel state by the above-mentioned tapping action on the propulsion head 1.

【発明の効果】【Effect of the invention】

本発明は、以上詳述したように、地下管路内に推進ヘッ
ドを入れ、不良個所では、上記推進ヘッドに叩打力を作
用さゼて強制的に管路の矯正を行なうものであるから、
例えば地下管路が、前述したように地盤のゆるみ、振動
などで管本体が折れ曲ったり、あるいは、管継手部の接
合状態が外れ現象を起して段違い状態を生じた場合、ま
た他の工事に伴なう繋岩機や掘削機の爪等で管本体が破
損されて不良個所が出現した場合など、その管路の補修
が可能となり、以後のケーブル引込み作業を容易にさせ
るという優れた補修効果を上げることができる。As described in detail above, the present invention places a propulsion head inside an underground conduit, and in the case of defective areas, a striking force is applied to the propulsion head to forcibly correct the conduit.
For example, when an underground pipe is bent due to loosening of the ground or vibrations, as mentioned above, or when the joint of a pipe joint comes loose, resulting in an uneven condition, or when other construction work is being carried out, This is an excellent repair method that allows the pipe to be repaired in cases where the main body of the pipe is damaged by the nails of tethering machines or excavators, etc., and defects appear, making it possible to repair the pipe and making subsequent cable pulling work easier. You can increase the effect.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の補修工法を実現するための器具の一例
を示す縦断側面図、第２図は地下管路に上記器具を導入
した状態を示す縦断側面図、第３図および第４図は補修
個所での器具の使用態様を示す縦断側面図である。 １・・・推進ヘッド、２・・・ワイヤ、３・・・ハンマ
ロッド、４４１．シリング、５・・・ハンマヘッド、６
°゛°圧縮コイルスプリング、１・・・ピストン、８・
・・耐圧ホース、７・・・二１ンプレツサ、１０・・・
ゴムカラー、１１・・・ウィンチ、Δ・・・地Ｔ管路、
Ｂ、Ｃ・・・マンホール、Ｘ・・・内部膨出部分。Fig. 1 is a longitudinal side view showing an example of the equipment for implementing the repair method of the present invention, Fig. 2 is a longitudinal side view showing the state in which the above equipment is introduced into an underground pipe, and Figs. 3 and 4. FIG. 2 is a longitudinal side view showing how the instrument is used at a repair site. DESCRIPTION OF SYMBOLS 1... Propulsion head, 2... Wire, 3... Hammer rod, 441. Schilling, 5...Hammerhead, 6
°゛°Compression coil spring, 1... Piston, 8.
...Pressure hose, 7...21 pump, 10...
Rubber collar, 11... winch, Δ... ground T pipe,
B, C...manhole, X...internal bulge.

Claims (1)

【特許請求の範囲】[Claims] 先端にコーン形又はある特殊な形状を有する推進ヘッド
を具備するシリンダ装置を、地下管路中に挿通し、推進
ヘッドの進行が妨げられた時、上記シリンダに設けたピ
ストンを動作させて上記推進ヘッドに前方への叩打作用
を与え、上記推進ヘッドを強制挿通させて管路の変形を
矯正するようにしたことを特徴とする地下管路の補修工
法。A cylinder device equipped with a propulsion head having a cone shape or a certain special shape at the tip is inserted into the underground pipeline, and when the propulsion head is obstructed, the piston provided in the cylinder is operated to carry out the propulsion. A method for repairing an underground pipeline, characterized in that a forward striking action is applied to the head to forcibly insert the propulsion head to correct deformation of the pipeline.
JP14899984A 1984-07-17 1984-07-17 Repairing method for underground pipeline Granted JPS6128629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14899984A JPS6128629A (en) 1984-07-17 1984-07-17 Repairing method for underground pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14899984A JPS6128629A (en) 1984-07-17 1984-07-17 Repairing method for underground pipeline

Publications (2)

Publication Number Publication Date
JPS6128629A true JPS6128629A (en) 1986-02-08
JPH0368974B2 JPH0368974B2 (en) 1991-10-30

Family

ID=15465439

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14899984A Granted JPS6128629A (en) 1984-07-17 1984-07-17 Repairing method for underground pipeline

Country Status (1)

Country Link
JP (1) JPS6128629A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120091032A (en) 2009-09-30 2012-08-17 테루모 가부시키가이샤 Injection needle assembly and drug injection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120091032A (en) 2009-09-30 2012-08-17 테루모 가부시키가이샤 Injection needle assembly and drug injection device

Also Published As

Publication number Publication date
JPH0368974B2 (en) 1991-10-30

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