FIELD: construction.
SUBSTANCE: pipeline is installed, and plugs are installed at its ends. The pipeline is equipped with pontoons or placed in a transit of the underwater transition. At the same time pontoons are connected to each other by flexible pipes, and the first pontoon is kinematically connected by a rope with a hoist. Then they give negative evenly distributed buoyancy to the pipeline, and it is submerged to the bottom by increasing weight of the pontoons by means of filling with water pumped from the water reservoir with the help of a pump. The injection nozzle of the pump is connected to the hole of the extreme pontoon with the help of a flexible pipeline, the length of which is accepted as more than the depth of pipeline submersion. After fixation of the pipeline in the design position they perform unslinging of pontoons.
EFFECT: reduction of costs for production.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD TO INSTALL UNDERWATER PIPELINE | 2010 |
|
RU2455552C2 |
| METHOD TO INSTALL UNDERWATER PIPELINE | 2010 |
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SU1002466A1 |
