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Seabed PE pipe rim spreading and imbedding construction method

A construction method and pipeline laying technology, which is applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems that steel wire mesh cannot be used to wrap high-density polyethylene composite pipes, etc. Faster silting, avoiding flange joints, and saving construction costs

Active Publication Date: 2008-10-08
SHANGHAI FOUND ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] Therefore, the existing PE pipe construction technology cannot be used for the construction of steel wire mesh-wound high-density polyethylene composite pipe (SPE), with a diameter of 450mm, a wall thickness of 22mm, and a total length of 17996m.

Method used

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  • Seabed PE pipe rim spreading and imbedding construction method
  • Seabed PE pipe rim spreading and imbedding construction method
  • Seabed PE pipe rim spreading and imbedding construction method

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Embodiment Construction

[0061] The present invention will be further described below with reference to the drawings and embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0062] Such as figure 1 As shown, the method for laying and burying a submarine PE pipeline of the present invention includes:

[0063] 1. Construction procedure for pipe laying:

[0064] Before starting the construction of the deep sea section pipeline installation, the construction auxiliary work boat (anchor boat) cooperates with the pipeline laying work boat to install the stinger and the hydraulic mechanical embedding machine.

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Abstract

The invention relates to an ocean floor PE tube edge application edge burying construction method, the method integrates submerged pipeline and undersea cable construction technique, the PE tubes solders segment by segment on the application tube ship, then applied into ocean floor with support tube frames, meanwhile the tails of the support tube frames directly connect to a submerged pipeline burying machine, the tube application reaches the plough groove bottom at same time of reaching the ocean floor, then the pipeline is buried under sea floor by nature back silting. The method may secure continuous welding construction of the whole pipeline, and prevent flange connector of pipeline in medium sea; the invention conserves plentiful manpower, physical resources, reduces destruction to surroundings, and resolves problem that the underwater plough groove digging back silting is quick at same time; application and depth of burial of the pipeline can be achieved by integrating the pipe-laying ship and the burying vessel into one, and construction cost is greatly reduced.

Description

Technical field [0001] The invention relates to a construction method for laying a submarine pipeline, in particular to a construction method for laying a submarine PE pipeline. Background technique [0002] At present, long-distance submarine water pipelines are mainly made of steel pipes. The steel pipes are anticorrosive inside and outside, first laid on the seabed and then buried deep. However, steel pipes are prone to rust and scale, causing corrosion on the seabed. [0003] The new type of PE material is used as the pipe material. It has the characteristics of explosion-proof, shock-proof, anti-corrosion, non-toxic, odorless, non-rusting, non-scaling, and long service life. It has been widely used in urban underground water pipe network systems on land. Plastic pipes have been laid in water since the 1950s and are widely used all over the world. [0004] PE material is required to be welded with a sleeve during the entire process of pipe construction, and flange butt joints...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/16
Inventor 沈光柳立群
Owner SHANGHAI FOUND ENG GRP
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