FR2264924A1 - Method of placing sea bed conduits - involves tensioning conduits and using floatation-ballast units - Google Patents
Method of placing sea bed conduits - involves tensioning conduits and using floatation-ballast unitsInfo
- Publication number
- FR2264924A1 FR2264924A1 FR7409238A FR7409238A FR2264924A1 FR 2264924 A1 FR2264924 A1 FR 2264924A1 FR 7409238 A FR7409238 A FR 7409238A FR 7409238 A FR7409238 A FR 7409238A FR 2264924 A1 FR2264924 A1 FR 2264924A1
- Authority
- FR
- France
- Prior art keywords
- conduits
- floatation
- conduit
- ballast units
- sea bed
- 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
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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/16—Laying or reclaiming pipes on or under water on the bottom
- F16L1/163—Laying or reclaiming pipes on or under water on the bottom by varying the apparent weight of the pipe during the laying operation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
-
- 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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats, weights
- F16L1/24—Floats; Weights
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The method of transporting and placing long conduits underwater e.g. on sea bed, alleviates the dependency of the towing operation on calm seas, and entails the towing of tensioned submerged lengths with controllable air-water floatation-ballast units maintaining the conduit at the desired station beneath surface water level. Tension is applied by long calbes terminally supported by tugs the greater tractive force being applied by the leading tug to achieve the desired displacement. Floatation-ballast units attach to the conduit at intervals of several hundred metres and conduit depth is maintained by suspension cables from subsidiary tugs. Swell compensators act with each suspension cable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7409238A FR2264924A1 (en) | 1974-03-19 | 1974-03-19 | Method of placing sea bed conduits - involves tensioning conduits and using floatation-ballast units |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7409238A FR2264924A1 (en) | 1974-03-19 | 1974-03-19 | Method of placing sea bed conduits - involves tensioning conduits and using floatation-ballast units |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2264924A1 true FR2264924A1 (en) | 1975-10-17 |
FR2264924B1 FR2264924B1 (en) | 1978-03-31 |
Family
ID=9136515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7409238A Granted FR2264924A1 (en) | 1974-03-19 | 1974-03-19 | Method of placing sea bed conduits - involves tensioning conduits and using floatation-ballast units |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2264924A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2388716A1 (en) * | 1977-04-28 | 1978-11-24 | Shibata Ind Co Ltd |
-
1974
- 1974-03-19 FR FR7409238A patent/FR2264924A1/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2388716A1 (en) * | 1977-04-28 | 1978-11-24 | Shibata Ind Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
FR2264924B1 (en) | 1978-03-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |