JPS6059031B2 - Conduit lining method - Google Patents
Conduit lining methodInfo
- Publication number
- JPS6059031B2 JPS6059031B2 JP13818380A JP13818380A JPS6059031B2 JP S6059031 B2 JPS6059031 B2 JP S6059031B2 JP 13818380 A JP13818380 A JP 13818380A JP 13818380 A JP13818380 A JP 13818380A JP S6059031 B2 JPS6059031 B2 JP S6059031B2
- Authority
- JP
- Japan
- Prior art keywords
- lining
- conduit
- cable
- running
- open end
- 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
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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
【発明の詳細な説明】
本発明は、前後一対の管内走行物体間に流動性シール剤
を充填させた状態でこれらを導管の開口端からの加圧に
より走行させて前記シール剤を導管内面に筒膜状にライ
ニングさせる方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention involves filling a pair of front and rear running objects in a pipe with a fluid sealant, and moving the objects under pressure from the open end of the pipe to apply the sealant to the inner surface of the pipe. The present invention relates to a method of lining in the form of a cylindrical membrane.
従来の導管ライニング方法には大別して次の二つが知ら
れている。The following two types of conventional conduit lining methods are known.
一つは、第4図イのように管内走行物体1から延出した
索条2を牽引することにより流動性シール剤3をライニ
ングする方法であり、他の一つは、頭記と同様で第4口
にも示すJように前後の管内走行物体1、1’間に流動
性シール剤3を充填し走行用流体圧か付与下に走行させ
てライニングする方法てある。而して、前者の方法では
牽引に先立つて索条の通線のために、又、後者の方法で
は走行終端で走行物体を取出すために、何れも導管をそ
のライニング範囲の両端で切断する必要があつて、その
切断作業およびライニング後の切断部接続作業に多大な
手間を要し、とりわけ地下埋設管の場合は土壌掘削作業
および埋戻し作業のため作業性の大巾な悪化を招いてい
た。One is a method of lining the fluid sealant 3 by pulling the cable 2 extending from the object running inside the pipe 1 as shown in Fig. 4A, and the other method is the same as above. As shown in J shown in the fourth port, there is a method of lining by filling a fluid sealing agent 3 between the front and rear running objects 1 and 1' in the pipe and running them under running fluid pressure. Therefore, in the former method, it is necessary to cut the conduit at both ends of its lining area, in order to pass the cable through the cable prior to towing, and in the latter method, to remove the traveling object at the end of its travel. However, the cutting work and the work of connecting the cut parts after lining require a great deal of effort, and in the case of underground pipes in particular, the soil excavation work and backfilling work lead to a significant deterioration in workability. .
後者の方法において導管切断を一端のみとし、元コック
等から逆方向に加圧して切断箇所に向け押し戻すことが
考えられたが、この場合、どの地点まで走行物体が移動
しているのかが不明で途中に分岐があるときには確実な
押し戻しが期待できないし、ライニング範囲外に圧力が
逃げるため相当大なる圧力をかける必要があつてそれに
起因した漏れや機器の損傷などを招くとも限らす、抜本
的な解決策とは言い難い。In the latter method, it was considered to cut the conduit only at one end and apply pressure in the opposite direction from the source cock, etc., to push it back toward the cut point, but in this case, it was unclear to what point the traveling object had traveled. If there is a branch in the middle, reliable push-back cannot be expected, and pressure will escape outside the lining area, so it will be necessary to apply a considerable amount of pressure, which may lead to leakage or damage to equipment. It's hard to call it a solution.
本発明による導管ライニング方法は、かかる問題に鑑み
て開発されたもので、頭記方法を前提として、前方走行
物体に該走行物体の引戻し用索条を取付けて、所定長さ
範囲に亘るライニング後における前記索条の引戻しによ
り、前後両走行物体を前記開口端から排出することを特
徴とする。The conduit lining method according to the present invention was developed in view of this problem, and is based on the above method, attaching a pullback rope to an object traveling in front of the object, and then lining the conduit over a predetermined length range. By pulling back the cable, both the front and rear running objects are discharged from the opening end.
即ち、索条の引戻しをもつて、前後両走行物体をライニ
ング圧加圧側開口端、即ちライニングに先立つて走行物
体を挿入した開口端から排出するので、導管に対する切
断はライニング範囲の一端のみに対して行うだけでよい
。しかも、両走行物体が所定ライニング範囲の終端に到
達したことを索条の引込み長さをもつて正確、容易に確
認できる。That is, by pulling back the cable, both the front and rear running objects are discharged from the lining pressurization side open end, that is, the open end where the running object was inserted prior to the lining, so the conduit is cut only at one end of the lining range. Just do it. Furthermore, it is possible to accurately and easily confirm that both traveling objects have reached the end of the predetermined lining range by checking the retracted length of the cable.
更に、ライニング中に走行物体によつて引きずられた索
条がライニング筒膜を乱すことがあつても、引戻しによ
り前方即ち奥側の走行物体がライニング筒膜を整形し直
すこととなるため、所定長さの導管全長、全周に亘つて
均一又はほぼ均一なライニングを行える。Furthermore, even if a cable dragged by a running object disturbs the lining tube membrane during lining, the pulling back causes the running object on the front, that is, the back side, to reshape the lining tube membrane. Uniform or almost uniform lining can be performed over the entire length of the conduit and its circumference.
又、索条をしての引戻し故に両走行物体の排出作業を迅
速、確実に行える。In addition, since it is pulled back using a cable, the work of discharging both traveling objects can be done quickly and reliably.
このように本発明によれば、所期性状のライニングを良
好に行うことができながら、切断作業の半減化、ライニ
ング長確認の容易化、ならびに両走行物体排出の迅速、
確実化をもつて全体作業性の顕著な向上を図ることがで
きるに至つた。As described above, according to the present invention, while it is possible to perform lining with the desired properties, the cutting work is halved, the lining length can be easily confirmed, and the objects traveling on both sides can be quickly discharged.
By ensuring reliability, it has become possible to significantly improve overall workability.
本発明方法の実施態様を第1図ないし第3図に基ついて
説明すると、第1図のように、前方走行物体1から延出
したワイヤー等の索条2に後方走行物体1″をそれの軸
芯部において摺動自在に挿通した状態で、これら前後一
対の走行物体1,1゛間に流動性シール剤3を充填して
それらを導管Pにそれの一側開口端4から挿入し、この
開口端4から流体圧力を印加することにより、両走行物
体1,1″、索条2、シール剤3を導管P内に走行させ
、もつてシール剤3を導管P内面に筒膜状にライニング
していく。索条2には走行距離検出用の目盛(図示略)
が付されていて、これの確認により、所定長さ範囲のラ
イニングが行われたか否かを判断し、行われるに至つた
時点で開口端4からの加圧を解除する。走行物体1,1
″を導管開口端4に挿入した初期時点で、両者1,1″
間に充填するシール剤3の量は所定長さ範囲のライニン
グに必要な量よりもやや大に設定してあつて、ライニン
グもれを未然に防止している。従つて、所定長さ範囲の
ライニング終了時点でも両走行物体1,1″間に少量の
シール剤3が残つている。しかし前方走行物体1の存在
により、この残留シール剤3がライニング範囲を越えて
前方に移行しそこで塊となつて固化することはない。前
記ライニング完了後の加圧解除ののち、第2図のように
、索条2をウインチ等で巻取りながら引戻すことにより
、両走行物体1,1″を逆方向に移動させ、開口端4よ
り排出する。このとき、ライニング時に筒膜に生じてい
た索条2のこすりあとを前方、即ち奥側の走行物体1か
整形し直ず。ライニング範囲が長い場合とか屈曲してい
る楊合など索条2に与える引戻し力のみでは所期速度の
引戻しが難しくなる条件下では、開口端4に減圧による
真空吸引作用を与えることが有効である。第1図、第2
図では開口端4が掘削ビット内にあつたが、第3図のよ
うに地上に開口端4を位置”させる場合もある。The embodiment of the method of the present invention will be explained with reference to FIGS. 1 to 3. As shown in FIG. With the axial core portion slidably inserted, fluid sealant 3 is filled between the pair of front and rear running objects 1, 1, and they are inserted into the conduit P from one open end 4 thereof. By applying fluid pressure from this open end 4, both traveling objects 1, 1'', cables 2, and sealant 3 are made to travel inside the conduit P, and the sealant 3 is formed into a cylindrical film shape on the inner surface of the conduit P. I'm going to line it up. The cable 2 has a scale for detecting travel distance (not shown)
By checking this, it is determined whether lining has been performed within a predetermined length range, and when the lining has been completed, the pressure from the open end 4 is released. Running object 1,1
At the initial point of inserting the ``" into the conduit opening end 4, both 1,1"
The amount of sealing agent 3 filled in between is set to be slightly larger than the amount required for lining within a predetermined length range, thereby preventing lining leakage. Therefore, even at the end of lining a predetermined length range, a small amount of sealant 3 remains between the two running objects 1, 1''.However, due to the presence of the forward running object 1, this residual sealant 3 may exceed the lining range. After the lining is completed and the pressure is released, as shown in Fig. 2, by pulling back the cable 2 while winding it with a winch, etc. The traveling objects 1, 1'' are moved in the opposite direction and discharged from the open end 4. At this time, the rubbing marks of the cables 2 that had appeared on the tube membrane during lining were reshaped from the running object 1 on the front side, that is, on the back side. Under conditions where it is difficult to pull back the desired speed with only the pullback force applied to the cable 2, such as when the lining range is long or when the cable is bent, it is effective to apply a vacuum suction effect by reducing pressure to the open end 4. . Figures 1 and 2
In the figure, the open end 4 is located inside the excavation bit, but the open end 4 may be located on the ground as shown in FIG.
図面は本発明に係る導管ライニング方法の実施の態様を
例示し、第1図、第2図は施工要領を順次的に示す概略
断面図、第3図は対象管が別の場合を示す断面図である
。
第4図イ,CJCま従来一般のライニング方法を示す概
略断面図である。1,1″・・・・・・管内走行物体、
2・・・・・・索条、3・・・・・・流動性シール剤、
4・・・・・・開口端、P・・・・・・導管。The drawings illustrate an embodiment of the conduit lining method according to the present invention, and FIGS. 1 and 2 are schematic cross-sectional views sequentially showing the construction procedure, and FIG. 3 is a cross-sectional view showing a case where the target pipe is different. It is. FIG. 4A is a schematic sectional view showing a conventional general lining method for CJC. 1,1″・・・Object running inside the pipe,
2... Cable, 3... Fluid sealant,
4... Open end, P... Conduit.
Claims (1)
3を充填させた状態でこれらを導管Pの開口端4からの
加圧により走行させて前記シール剤3を導管P内面に筒
膜状にライニングさせる方法であつて、前方走行物体1
に該走行物体1の引戻し用索条2を取付けて、所定長さ
範囲に亘るライニング後における前記索条2の引戻しに
より、前後両走行物体1、1′を前記開口端4から排出
することを特徴とする導管ライニング方法。 2 前記後方走行物体1′を前記索条2に対し摺動自在
な状態にして行う特許請求の範囲第1項に記載の導管ラ
イニング方法。 3 前記索条2に走行距離検出用目盛を付した状態で行
う特許請求の範囲第1項又は第2項に記載の導管ライニ
ング方法。 4 前記索条2の引戻し時に、前記開口端4からの真空
吸引を併用する特許請求の範囲第1項ないし第3項の何
れかに記載の導管ライニング方法。 5 前記前後の走行物体1、1′間に充填するシーール
剤3の量を、前記所定長さ範囲に亘るライニングに必要
な量よりもやや大に設定して行う特許請求の範囲第1項
ないし第4項の何れかに記載の導管ライニング方法。[Scope of Claims] 1. Fluid sealing agent 3 is filled between the front and rear pairs of in-pipe running objects 1 and 1', and these are moved under pressure from the open end 4 of the conduit P to remove the sealing agent 3. This is a method of lining the inner surface of the conduit P in the form of a cylindrical film.
A cable 2 for pulling back the running object 1 is attached to the lining, and by pulling back the cable 2 after lining over a predetermined length range, both the front and rear running objects 1, 1' are discharged from the opening end 4. Characteristic conduit lining method. 2. The conduit lining method according to claim 1, wherein the method is carried out in a state where the rear traveling object 1' is slidable with respect to the cable 2. 3. The conduit lining method according to claim 1 or 2, which is carried out in a state where the cable 2 is provided with a scale for detecting travel distance. 4. The conduit lining method according to any one of claims 1 to 3, which uses vacuum suction from the open end 4 when pulling back the cable 2. 5. The amount of sealant 3 filled between the front and rear running objects 1, 1' is set to be slightly larger than the amount required for lining over the predetermined length range. The method for lining a conduit according to any one of Item 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13818380A JPS6059031B2 (en) | 1980-10-01 | 1980-10-01 | Conduit lining method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13818380A JPS6059031B2 (en) | 1980-10-01 | 1980-10-01 | Conduit lining method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5763175A JPS5763175A (en) | 1982-04-16 |
JPS6059031B2 true JPS6059031B2 (en) | 1985-12-23 |
Family
ID=15215991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13818380A Expired JPS6059031B2 (en) | 1980-10-01 | 1980-10-01 | Conduit lining method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6059031B2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58112075A (en) * | 1981-12-25 | 1983-07-04 | Hakko Co Ltd | Method of lining pipe |
JPS59169581A (en) * | 1983-03-14 | 1984-09-25 | Sumitomo Metal Ind Ltd | Coating method for interior surface of pipe |
JPS6331578A (en) * | 1986-07-26 | 1988-02-10 | Osaka Gas Co Ltd | Method for lining inner wall surface of pipe |
JPH0749113B2 (en) * | 1986-10-15 | 1995-05-31 | 大阪瓦斯株式会社 | Inner pipe lining method |
JPS63162076A (en) * | 1986-12-23 | 1988-07-05 | Osaka Gas Co Ltd | Method for lining pipeline |
JPS63267481A (en) * | 1987-04-27 | 1988-11-04 | Koyo Kensetsu Kogyo Kk | Method for repairing leakage of small caliper piping |
JPH07205264A (en) * | 1994-01-11 | 1995-08-08 | Nippon Steel Chem Co Ltd | Multilayer blow molded form |
-
1980
- 1980-10-01 JP JP13818380A patent/JPS6059031B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5763175A (en) | 1982-04-16 |
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