WO1986001846A2 - Lining underground ducts - Google Patents
Lining underground ducts Download PDFInfo
- Publication number
- WO1986001846A2 WO1986001846A2 PCT/GB1985/000433 GB8500433W WO8601846A2 WO 1986001846 A2 WO1986001846 A2 WO 1986001846A2 GB 8500433 W GB8500433 W GB 8500433W WO 8601846 A2 WO8601846 A2 WO 8601846A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- duct
- chain
- lining
- pipe sections
- plate
- 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.)
- Ceased
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
- E21B7/30—Enlarging drilled holes, e.g. by counterboring without earth removal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
- E21B7/205—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes without earth removal
- E21B7/206—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes without earth removal using down-hole drives
-
- 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
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
- F16L55/1658—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the old pipe being ruptured prior to insertion of a new pipe
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Pipe Accessories (AREA)
Abstract
A method of lining an underground duct includes towing an assembly of duct enlarging apparatus (10) and lining pipe sections (14) through the duct (12) by passing a chain (18) through the whole assembly and attaching it to a plate (42) placed over the rearmost pipe section (14A). In this way, tensile overloading of the joints between the pipe sections (14) due to frictional contact of the sections against the wall of the duct (12) is avoided. As the assembly is moved through the duct (12), new pipe sections (14) are periodically attached at the rear by releasing the tension on the chain (18), removing the plate (42), threading the chain (18) through the new section (14), and replacing the plate (42). To reduce snaking of the lining pipe when under compression, a clamp is included inside the leading apparatus to clamp the chain (18) and limit the compression of the pipe sections (14).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8423678 | 1984-09-19 | ||
| GB848423678A GB8423678D0 (en) | 1984-09-19 | 1984-09-19 | Lining-replacing underground conduits |
| GB8428141 | 1984-11-07 | ||
| GB848428141A GB8428141D0 (en) | 1984-11-07 | 1984-11-07 | Clamping device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO1986001846A2 true WO1986001846A2 (en) | 1986-03-27 |
| WO1986001846A1 WO1986001846A1 (en) | 1986-03-27 |
| WO1986001846A3 WO1986001846A3 (en) | 1986-05-22 |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU597021B2 (en) * | 1985-11-25 | 1990-05-24 | Teerbau-Niedung Gmbh | Method for restoring underground pipelines |
| DE4328618A1 (en) * | 1993-08-26 | 1995-03-02 | Teerbau Gmbh Strassenbau | Process for renewing underground pipes and conduits |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU597021B2 (en) * | 1985-11-25 | 1990-05-24 | Teerbau-Niedung Gmbh | Method for restoring underground pipelines |
| DE4328618A1 (en) * | 1993-08-26 | 1995-03-02 | Teerbau Gmbh Strassenbau | Process for renewing underground pipes and conduits |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1986001846A3 (en) | 1986-05-22 |
| GB8523200D0 (en) | 1985-10-23 |
| AU4863985A (en) | 1986-04-08 |
| PT81154B (en) | 1992-05-29 |
| EP0195042A1 (en) | 1986-09-24 |
| PT81154A (en) | 1985-10-01 |
| GB2164718A (en) | 1986-03-26 |
| GR852253B (en) | 1986-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
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| AL | Designated countries for regional patents |
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| CFP | Corrected version of a pamphlet front page | ||
| CR1 | Correction of entry in section i |
Free format text: IN PAT.BUL.07/86,UNDER PUBLISHED REPLACE "A1" BY "A2" |
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| AK | Designated states |
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