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Subsea pipeline channel door-type block

A submarine pipeline and door-type technology, which is applied in pipeline laying and maintenance, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problem that the concrete weight layer cannot be arranged at will, and achieve convenient adjustment of installation layout without affecting the environment. Elevation has no effect

Inactive Publication Date: 2014-02-26
SHANGHAI FOUND ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, sometimes it is often limited by the production, processing and laying of pipes, so that the concrete weighting layer covered by the pipes cannot be arranged arbitrarily.

Method used

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  • Subsea pipeline channel door-type block
  • Subsea pipeline channel door-type block
  • Subsea pipeline channel door-type block

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0012] Such as figure 1 As shown, the door-shaped block in the submarine pipeline groove of the present invention includes a concrete briquette 1 and a rubber sheet 2 .

[0013] The concrete briquetting block 1 is provided with a groove, and a rubber sheet 2 is pasted on the wall of the groove. Both the width and height of the groove are greater than the diameter of the subsea pipeline. The upper end surface of the concrete briquette 1 is provided with lifting lugs 3 . The door block is made of concrete above C20, and can be properly reinforced to meet the hoisting requirements, that is, the durability requirements.

[0014] Such as figure 2 As shown, the concrete compact 1 is a reinforced concrete structure, and its cross-sectional size matches the cross-sectional size of the trench. The size of the door block is determined according to the secti...

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Abstract

The invention relates to a subsea pipeline channel door-type block. A concrete pressing block is provided with a groove, and a rubber sheet is adhesive to the wall of the groove. The concrete pressing block is in a reinforced concrete structure, and the size of the cross section matches with that of the groove. The width and height of the groove are larger than the diameter of a subsea pipeline. The upper end face of the concrete pressing block is provided with lugs. Combined with pipeline embedding deeply, the stability of the pipeline is improved. The door-type block is a block manufactured independently to the pipeline, is in a reinforced concrete structure, and is regular in shape and easy go manufacture; the single block is light in weight and convenient to transport; the block is separated from subsea pipeline pavement, the main construction progress is free of influence, and mounting layout can be adjusted conveniently; the block can be inserted into the groove firmly and is not prone to capsizing, and has the advantages of no influences on seafloor elevation and environment.

Description

technical field [0001] The invention relates to a door-shaped block installed in a trench after a submarine pipeline is deeply buried. Background technique [0002] Due to the action and influence of natural environmental factors such as strong waves, seabed scour, etc., even after the submarine pipeline is buried deep, the pipeline on the seabed will sometimes lose its in-situ stability. In order to maintain the in-position stability of the submarine pipeline, it is generally necessary to increase the negative buoyancy of the pipeline. [0003] The usual way to increase the negative buoyancy of the pipe is to wrap the pipe with a concrete weighting layer to make up for the lack of the pipe's own weight, and to maintain its stability in place by the counterweight. However, sometimes it is often restricted by pipe manufacturing, processing and laying operations, so that the concrete weighting layer wrapped by the pipe cannot be arranged arbitrarily. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/12
CPCF16L1/24
Inventor 祝成龙李俊赵彦钊周海彬
Owner SHANGHAI FOUND ENG GRP
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