JPH01204724A - Hard tube lining technique of inside of branch pipe part of buried pipe - Google Patents
Hard tube lining technique of inside of branch pipe part of buried pipeInfo
- Publication number
- JPH01204724A JPH01204724A JP63028437A JP2843788A JPH01204724A JP H01204724 A JPH01204724 A JP H01204724A JP 63028437 A JP63028437 A JP 63028437A JP 2843788 A JP2843788 A JP 2843788A JP H01204724 A JPH01204724 A JP H01204724A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- hard tube
- heat
- branch pipe
- resistant
- 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
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000010276 construction Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 abstract description 8
- 230000037431 insertion Effects 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 239000000853 adhesive Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/26—Lining or sheathing of internal surfaces
- B29C63/28—Lining or sheathing of internal surfaces applied by "rubber" bag or diaphragm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/24—Pipe joints or couplings
- B29L2031/246—T-joints
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Pipe Accessories (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は埋設管枝管部内面の硬質チューブライニング工
法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a hard tube lining method for the inner surface of a branch pipe section of a buried pipe.
従来の技術とその問題点
埋設管枝管部、例えば地下に埋設の下水本管と地表部に
形成の下水溝とを連結する枝管部は、継目部などよりの
地下水浸入防止を目的として、硬質チューブによる内面
ライニングを施すことが望まれる。上記枝管部は、先端
側が下水溝内に開口されているとはいえ、基端側は地下
埋設の本管に接続されているので、内面ライニング施工
の作業口としては片側の先端開口のみとなり、このよう
な片側施工は、非常に困難である。この場合地面を掘削
し、枝管部の基端部を切断し作業口を形成すれば、両側
よりの作業となり施工可能となるが、これでは地面の掘
削と管切断に多大の時間と手数を要することになり、好
ましい解決策ではない。Conventional technology and its problems Buried pipe branch pipes, for example, branch pipes that connect underground sewage main pipes and sewage grooves formed on the surface, are designed to prevent groundwater from entering through joints, etc. It is desirable to provide an inner lining with a hard tube. Although the tip of the above branch pipe opens into the sewer ditch, the base end is connected to the underground main pipe, so only one end of the branch can be opened as a working opening for inner lining construction. , such one-sided construction is extremely difficult. In this case, if the ground is excavated and the proximal end of the branch pipe section is cut to form a work opening, the work can be done from both sides, but this requires a lot of time and effort to excavate the ground and cut the pipe. This is not the preferred solution.
本発明はこのような従来の問題点を一掃することを目的
としてなされたものである。The present invention has been made with the aim of eliminating such conventional problems.
本発明は、基端が地下埋設の本管に接続され、先端が実
質的に地上に開口された枝管部内面に硬質チューブライ
ニングを形成するための工法であって、上記枝管部の先
端開口を作業口として枝管部基端管口まで挿入された硬
質チューブを、該チューブ内に挿入された拡縮自在な耐
熱性チューブを介して内部より加熱加圧して膨張させて
枝管部内面に内張し、硬質チューブの冷却固化後に、耐
熱性チューブを縮小させ硬質チューブ内より回収するこ
とを特徴とする埋設管枝管部内面の硬質チューブライニ
ング工法に係る。The present invention is a construction method for forming a hard tube lining on the inner surface of a branch pipe whose base end is connected to a main pipe buried underground and whose tip is opened substantially above ground, the method comprising: A hard tube is inserted into the proximal port of the branch pipe using the opening as a working port, and is heated and pressurized from the inside via a heat-resistant tube that can be expanded and contracted to expand it to the inner surface of the branch pipe. The present invention relates to a hard tube lining method for the inner surface of a buried pipe branch pipe, which is characterized in that after the hard tube is lined and the hard tube is cooled and solidified, the heat-resistant tube is shrunk and recovered from inside the hard tube.
実施例
以下に本発明工法の一実施例を添附図面にもとづき説明
すると、次の通りである。EXAMPLE An example of the construction method of the present invention will be described below based on the accompanying drawings.
図面は本発明工法を基端側か地下埋設の下水本管（ａ）
に接続され、先端側が地表部に設置の下水Ｍ（ｂ）内に
開口された枝管部（ｃ）の内面ライニングに適用した場
合に一例を示している。The drawing shows a sewage main (a) where the construction method of the present invention is installed at the base end or underground.
An example is shown in which the present invention is applied to the inner lining of a branch pipe (c) which is connected to a sewage pipe M(b) installed on the ground surface and whose tip end is opened into a sewage M(b) installed on the ground surface.
本発明工法に於て、内面ライニング材としては、硬質チ
ューブ（１）が用いられ、該チューブ（１）は、熱可塑
性合成樹脂製にして、円形断面を持つように押出し成形
されている。円形断面のチューブ（１）を用いることに
より、膨張内張り後に於ても円形断面を安定確実に保持
させることができる。In the construction method of the present invention, a hard tube (1) is used as the inner lining material, and the tube (1) is made of thermoplastic synthetic resin and extruded to have a circular cross section. By using the tube (1) with a circular cross section, the circular cross section can be stably and reliably maintained even after the inflatable lining.
硬質チューブ（１）は円形断面を基準にして、枝管部（
Ｃ）の内径と略々同一か或はこれより５０％程度を限度
として小さい外径を有し、枝管部（Ｃ）の内径に比較的
近い外径を有する場合には、枝管部（Ｃ）内への挿通性
を考慮し、外径寸法が減するよう管半径方向に押し潰し
、略々Ｕ字状断面を呈するように変形加工してもよい。The rigid tube (1) has a branch pipe section (
If it has an outer diameter that is approximately the same as the inner diameter of the branch pipe (C) or smaller by up to 50%, and has an outer diameter that is relatively close to the inner diameter of the branch pipe (C), the branch pipe ( C) Considering the ease of insertion into the tube, the tube may be crushed in the radial direction so as to reduce the outer diameter dimension, and deformed so as to have a substantially U-shaped cross section.
図に示された実施例に於ては、硬質チューブ（１）とし
て、枝管部（Ｃ）の内径の略々７５％程度の外径の円形
断面のものが、変形加工することなしに用いられている
。In the embodiment shown in the figure, a rigid tube (1) having a circular cross section with an outer diameter of approximately 75% of the inner diameter of the branch pipe portion (C) can be used without deformation. It is being
枝管部（Ｃ）内への挿入工程前に、硬質チューブ（１）
内の全長に亘り、拡縮自在な耐熱性チューブ（２）が挿
入される。チューブ（２）としては耐熱性ゴムのものが
適当である。Before the insertion process into the branch pipe section (C), insert the hard tube (1)
A heat-resistant tube (2) that can be expanded and contracted is inserted over the entire length of the tube. The tube (2) is suitably made of heat-resistant rubber.
耐熱性チューブ（２）の先端部は、硬質チューブ（１）
より外方へ突出され、この突出部（２ａ）の先端に、前
枠（３）が施されている。前枠（３）の外径は、膨張内
張り後の硬質チューブ（１）の内径よりも小さい。耐熱
性チューブ（２）内には、一端が上記前枠（３）の内端
に固設され、他端が該チューブ（２）より外方へ引出さ
れた耐熱ホース（４）が挿装され、耐熱ホース（４）の
先端には、上記チューブ（２）内と、ホース（４）内を
連通ずるための連通口（５ａ）を有する金物（５）が備
えられている。尚耐熱性チューブ（２）としては、第２
図の断面図に示されるように、硬質チューブ（１）の内
径よりも外径の大きいものを用い、これをＵ字型しわ寄
り部（２ｂ）により外径寸法の減じられた状態で、硬質
チューブ（１）内に挿入するようにしてもよい。The tip of the heat-resistant tube (2) is a hard tube (1)
A front frame (3) is provided at the tip of this protrusion (2a). The outer diameter of the front frame (3) is smaller than the inner diameter of the rigid tube (1) after inflation lining. A heat-resistant hose (4) is inserted into the heat-resistant tube (2), with one end fixed to the inner end of the front frame (3) and the other end drawn out from the tube (2). A metal fitting (5) having a communication port (5a) for communicating the inside of the tube (2) and the inside of the hose (4) is provided at the tip of the heat-resistant hose (4). In addition, as the heat-resistant tube (2), the second
As shown in the cross-sectional view of the figure, a hard tube (1) with an outer diameter larger than the inner diameter is used, and the outer diameter is reduced by the U-shaped wrinkled part (2b). It may also be inserted into the tube (1).
枝管部（Ｃ）に硬質チューブライニングを施すに隙して
は、第１図に示されるように枝管部（Ｃ）の下水溝（ｂ
）側の先端管口を作業口として、硬質チューブ（１）が
該チューブ（１）内挿入の耐熱性チューブ（２）と共に
、枝管部（Ｃ）内に挿入される。この挿入により硬質チ
ューブ（１）の挿入方向前端が枝管部（ｃ）の基端管口
に一致すると、挿入が停止される。尚枝管部（Ｃ）の長
さは予め測定されており、枝管部（Ｃ）の長さ分だけ、
硬質チューブ（１）を挿入することにより、その前端を
枝管部（Ｃ）の基端管口に一致させることができる。ま
た耐熱性チューブ（２）の突出部（２ａ）の長さを、本
管（ａ）の直径と等しくしておくことによっても、同じ
目的を達成できる。If the hard tube lining is applied to the branch pipe section (C), the drain groove (b) of the branch pipe section (C) should be
The hard tube (1) is inserted into the branch pipe section (C) along with the heat-resistant tube (2) inserted into the tube (1), using the tip port on the ) side as a working port. As a result of this insertion, when the front end of the hard tube (1) in the insertion direction matches the proximal port of the branch tube section (c), the insertion is stopped. The length of the branch pipe part (C) is measured in advance, and the length of the branch pipe part (C) is
By inserting the hard tube (1), its front end can be aligned with the proximal port of the branch tube section (C). The same objective can also be achieved by making the length of the protrusion (2a) of the heat-resistant tube (2) equal to the diameter of the main pipe (a).
硬質チューブ（１）の挿入工程に於て、枝管部（Ｃ）が
屈曲部を有するような場合には、硬質チューブ（１）は
内部よりスチームなどで加熱され、軟化状態のちとに枝
管部（Ｃ）内に挿入される。In the process of inserting the hard tube (1), if the branch pipe part (C) has a bent part, the hard tube (1) is heated from the inside with steam or the like, and after being softened, the branch pipe is inserted. It is inserted into section (C).
この場合硬質チューブ（１）を内部よりバックアップし
ておかないと形部れを生ずる虞れがあるので、該チュー
ブ（１）内に挿入の耐熱性チューブ（２）を硬質チュー
ブ（１）が拡張されない程度の膨張圧のもとに膨らませ
、硬質チューブ（１）を内側から支持しつつ枝管部（ｃ
）内に挿入することが好ましい。In this case, if the hard tube (1) is not backed up from the inside, there is a risk of deformation, so the heat-resistant tube (2) inserted into the tube (1) is expanded so that the hard tube (1) expands. The hard tube (1) is inflated under such an inflation pressure that it will not be damaged, and the branch tube section (c
) is preferably inserted.
枝管部（Ｃ）内に硬質チューブ（１）及び耐熱性チュー
ブ（２）を挿入した後は、第３図に示されるように、２
等チューブ（１）及び（２）の後端に後枠（６）が施さ
れる。ゴムホース（４）の後端部は後枠（６）を貫通し
て外部に引出され、この引出し端（４ａ）に開閉バルブ
（７）が備えられる。After inserting the hard tube (1) and the heat-resistant tube (2) into the branch pipe section (C), as shown in FIG.
A rear frame (6) is provided at the rear ends of the tubes (1) and (2). A rear end portion of the rubber hose (4) passes through the rear frame (6) and is drawn out to the outside, and an on-off valve (7) is provided at this drawn-out end (4a).
第３図に示す状態で、スチームをボイラー（図示せず）
、導管（８）及び後枠（６）の供給口（６ａ）を順次経
て耐熱性チューブ（２）内に供給すると、スチームは該
チューブ（２）内を後端から前端方に向は流れ、この間
耐熱性チューブ（２）を介してその外側の硬質チューブ
（１）を加熱しつつ、金物（５）の連通口（５ａ）及び
ゴムホース（４）内を順次経て外部に排出されて行く。In the state shown in Figure 3, steam is transferred to the boiler (not shown).
When the steam is supplied into the heat-resistant tube (2) through the conduit (8) and the supply port (6a) of the rear frame (6) sequentially, the steam flows in the tube (2) from the rear end to the front end. During this time, the outer hard tube (1) is heated through the heat-resistant tube (2) and is discharged to the outside through the communication port (5a) of the hardware (5) and the rubber hose (4).
スチームの排出はゴムホース（４）を経由させることな
しに、前衿（３）に設けた排出口（図示せず）より行な
ってもよい。Steam may be discharged from a discharge port (not shown) provided in the front collar (3) without passing through the rubber hose (4).
このようなスチーム加熱により硬質チューブ（１）が加
熱軟化された後は、バルブ（７）を開度調整し、耐熱性
チューブ（２）内のスチーム圧力を上昇させると、該チ
ューブ（２）ひいてはその外側の硬質チューブ（１）は
、管半径方向に膨張し、枝管部（Ｃ）の内面に内張すさ
れる。After the hard tube (1) is heated and softened by such steam heating, adjusting the opening of the valve (7) and increasing the steam pressure inside the heat-resistant tube (2) causes the tube (2) to become softer. The outer hard tube (1) expands in the tube radial direction and lines the inner surface of the branch tube section (C).
枝管部（Ｃ）内面への硬質チューブ（１）の内張りを終
えた後はチューブ（２）内圧力を保持したままで、スチ
ームを外気と置換し、外気によって硬質チューブ（１）
を冷却固化し、次いでチューブ（２）内の圧力を解放し
て、該チューブ（２）を縮小させ、硬質チューブ（１）
内より回収することにより、全ての作業を終了する。After lining the inner surface of the branch pipe (C) with the hard tube (1), while maintaining the pressure inside the tube (2), replace the steam with outside air, and use the outside air to line the hard tube (1).
is cooled and solidified, and then the pressure inside the tube (2) is released to shrink the tube (2) and form a rigid tube (1).
All work is completed by collecting it from within.
第４図は枝管部（ｃ）内面の硬質チューブ（１）の内張
り状況を示し、このチューブ（１）は硬質で保形性を有
しているので、以後この内張り状態を安定確実に保持す
る。Figure 4 shows the lining condition of the hard tube (1) on the inner surface of the branch pipe part (c).Since this tube (1) is hard and has shape-retaining properties, this lining condition will be maintained stably and reliably from now on. do.
効 果
本発明工法に於ては、枝管部（Ｃ）の下水溝（ｂ）の管
口を作業口として利用し内面ライニング施工できるので
、地面の掘削などの煩雑な手数は一切必要でなくなり、
施工性を改善できる。更に内面ライニングは硬質チュー
ブ（１）から構成されるので、接着剤の適用なしに地下
水圧に充分に耐え得られ、内張り状態を長期間安定確実
に持続保持できる。Effects In the construction method of the present invention, the inner lining can be constructed by using the pipe mouth of the sewage groove (b) of the branch pipe part (C) as a work opening, so there is no need for complicated labor such as digging the ground. ,
Workability can be improved. Further, since the inner lining is composed of a hard tube (1), it can sufficiently withstand underground water pressure without applying an adhesive, and the inner lining can be maintained stably and reliably for a long period of time.
第１図は本発明工法に於ける硬質チューブ挿入工程の状
況を概略的に示す全体図、第２図は挿入時の状況を示す
拡大断面図、第３図は本発明工法に於ける硬質チューブ
膨張工程の状況を概略的に示す全体図、第４図は硬質チ
ューブの内張り状況を示す断面図である。
図に於て、（１）は硬質チューブ、（２）は耐熱性チュ
ーブ、（３）は前衿、（４）はゴムホース、（５）は金
具、（６）は後枠である。
（以 上）Figure 1 is an overall view schematically showing the hard tube insertion process in the method of the present invention, Figure 2 is an enlarged sectional view showing the situation during insertion, and Figure 3 is a hard tube in the method of the present invention. FIG. 4 is an overall view schematically showing the state of the expansion process, and FIG. 4 is a sectional view showing the lining state of the hard tube. In the figure, (1) is a hard tube, (2) is a heat-resistant tube, (3) is a front collar, (4) is a rubber hose, (5) is a metal fitting, and (6) is a rear frame. (that's all)
Claims (1)
に地上に開口された枝管部内面に硬質チューブライニン
グを形成するための工法であって、上記枝管部の先端開
口を作業口として枝管部基端管口まで挿入された硬質チ
ューブを、該チューブ内に挿入された拡縮自在な耐熱性
チューブを介して内部より加熱加圧して膨張させて枝管
部内面に内張し、硬質チューブの冷却固化後に、耐熱性
チューブを縮小させ硬質チューブ内より回収することを
特徴とする埋設管枝管部内面の硬質チューブライニング
工法。(1) A method for forming a hard tube lining on the inner surface of a branch pipe whose base end is connected to a main pipe buried underground and whose tip is substantially opened above ground, the method comprising: opening the tip of the branch pipe; A hard tube is inserted into the proximal port of the branch pipe using the work opening, and is heated and pressurized from the inside through a heat-resistant tube that can be expanded and contracted to expand it inside the branch pipe. A hard tube lining construction method for the inner surface of a buried pipe branch section, which is characterized in that after the hard tube is stretched and cooled and solidified, the heat-resistant tube is shrunk and recovered from inside the hard tube.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63028437A JPH0617070B2 (en) | 1988-02-09 | 1988-02-09 | Hard tube lining method for inner surface of buried pipe branch |
| GB8830020A GB2213230B (en) | 1987-12-28 | 1988-12-22 | Method of lining branch pipe portion of underground main pipe with rigid plastics tube |
| US07/288,832 US4956041A (en) | 1987-12-28 | 1988-12-23 | Method of lining branch pipe portion of underground main pipe with rigid plastics tube |
| DE3844136A DE3844136C2 (en) | 1987-12-28 | 1988-12-28 | Device for feeding branch line sections |
| KR1019880017693A KR910005159B1 (en) | 1987-12-28 | 1988-12-28 | Method of lining branch pipe portion of underground main pipe with rigid plastic tube |
| FR888817324A FR2625290B1 (en) | 1987-12-28 | 1988-12-28 | METHOD FOR LINING A SECTION OF A BRANCHING PIPE OF A SUBTERRANEAN MAIN PIPE USING A RIGID OR SEMI-RIGID PLASTIC TUBE |
| US07/527,971 US5108228A (en) | 1987-12-28 | 1990-05-24 | Method of lining branch pipe portion of underground main pipe with rigid plastics tube |
| GB9116520A GB2244537B (en) | 1987-12-28 | 1991-07-31 | Method of lining branch pipe portion of underground main pipe with rigid plastics tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63028437A JPH0617070B2 (en) | 1988-02-09 | 1988-02-09 | Hard tube lining method for inner surface of buried pipe branch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01204724A true JPH01204724A (en) | 1989-08-17 |
| JPH0617070B2 JPH0617070B2 (en) | 1994-03-09 |
Family
ID=12248644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63028437A Expired - Fee Related JPH0617070B2 (en) | 1987-12-28 | 1988-02-09 | Hard tube lining method for inner surface of buried pipe branch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617070B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003042340A (en) * | 2001-07-31 | 2003-02-13 | Sekisui Chem Co Ltd | Regeneration pipe for embedded fitting pipe |
| JP2014034175A (en) * | 2012-08-10 | 2014-02-24 | Shonan Plastic Mfg Co Ltd | Pipe lining material and method for producing the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5358580A (en) * | 1976-11-08 | 1978-05-26 | Yuujirou Matsumoto | Method of lining |
| JPS59131448A (en) * | 1983-01-17 | 1984-07-28 | 住友電気工業株式会社 | Tube for coating inner surface of pipe |
| JPS61100437A (en) * | 1984-10-24 | 1986-05-19 | Osaka Gas Co Ltd | Method of lining branch pipe of city gas conduit |
-
1988
- 1988-02-09 JP JP63028437A patent/JPH0617070B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5358580A (en) * | 1976-11-08 | 1978-05-26 | Yuujirou Matsumoto | Method of lining |
| JPS59131448A (en) * | 1983-01-17 | 1984-07-28 | 住友電気工業株式会社 | Tube for coating inner surface of pipe |
| JPS61100437A (en) * | 1984-10-24 | 1986-05-19 | Osaka Gas Co Ltd | Method of lining branch pipe of city gas conduit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003042340A (en) * | 2001-07-31 | 2003-02-13 | Sekisui Chem Co Ltd | Regeneration pipe for embedded fitting pipe |
| JP2014034175A (en) * | 2012-08-10 | 2014-02-24 | Shonan Plastic Mfg Co Ltd | Pipe lining material and method for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0617070B2 (en) | 1994-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR910005159B1 (en) | Method of lining branch pipe portion of underground main pipe with rigid plastic tube | |
| CA1115917A (en) | Lining of passageways | |
| JP2640103B2 (en) | How to fit a thermoplastic pipe inside an existing pipeline | |
| GB2188695A (en) | Lining pipes | |
| GB2260180A (en) | Repairing undergroud pipe | |
| CA2462853A1 (en) | Installation assemblies for pipeline liners, pipeline liners and methods for installing the same | |
| KR0178146B1 (en) | Method for everting a tubular liner bag | |
| JPH0768643A (en) | Lining method for installed pipe | |
| JPH01204724A (en) | Hard tube lining technique of inside of branch pipe part of buried pipe | |
| JP2002303376A (en) | Reclaiming method of existing pipe and pipe end sealing member used for the method | |
| JP2683598B2 (en) | Lining method and lining material for pipeline having branch pipe | |
| JP3224246B2 (en) | Pipe branch and repair method for pipe having branch | |
| EP0101712B1 (en) | A lining hose for restoring or making a conveyor channel | |
| JP3473781B2 (en) | How to line branch pipes | |
| JPH0714618B2 (en) | Hard tube lining method for inner surface of buried sewer pipe | |
| JPH01171926A (en) | Hard tube lining method of inside of branch pipe part of underground pipe | |
| Yasuo et al. | Lining Branch Pipes | |
| GB2244537A (en) | Lining underground branch pipe with rigid plastics tube | |
| JP4570803B2 (en) | Rehabilitation pipe rehabilitation materials | |
| JPH11351490A (en) | Partial repairing method and jig for existing conduit | |
| JP3179074B1 (en) | Branch pipe branch connection method | |
| JP2002303378A (en) | Drawing method of reclaiming pipe | |
| JP3534930B2 (en) | Repair method of branch pipeline, repair bag and repair material | |
| JPH06143423A (en) | Method of rigid tube lining on inside of existing pipe under flowing water | |
| JP4700377B2 (en) | Rehabilitation method for buried pipes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |