Compound pipeline for improving pipeline strength and non-deformability of ultra-deep buried steel pipe

A composite technology with anti-deformation ability, applied in the direction of pipes/pipe joints/fittings, pipeline protection, pipeline damage/wear prevention, etc., can solve problems such as unretrieved technical solutions, increase economy and applicability, and avoid Direct contact, effect of reducing wall thickness

Pending Publication Date: 2019-11-15
TIANJIN CHENGJIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] No technical solution similar to this patent was found after searching the prior art

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  • Compound pipeline for improving pipeline strength and non-deformability of ultra-deep buried steel pipe
  • Compound pipeline for improving pipeline strength and non-deformability of ultra-deep buried steel pipe
  • Compound pipeline for improving pipeline strength and non-deformability of ultra-deep buried steel pipe

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0022] A composite pipeline that improves the strength and deformation resistance of ultra-deep buried steel pipe pipelines, the invention points of which are:

[0023] It includes a pipe body 2 and a concrete outer reinforcement sleeve 3 . The pipeline body adopts a steel pipe structure, and the concrete reinforcement sleeve is wrapped and poured on the outside of the pipeline body, specifically, C25 concrete is used for pouring. The two ends of the pipe body are exposed to the outside of the concrete reinforcement sleeve to form the joint end. For example, the length of a steel pipe is 6m, and the pouring length of the concrete reinforcement sleeve is 5.5m. In this way, the length of the two joint ...

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Abstract

The invention relates to a compound pipeline for improving pipeline strength and non-deformability of an ultra-deep buried steel pipe. The compound pipeline comprises a pipeline body and a concrete outer reinforcing sleeve. The pipeline body is of a steel pipe structure. The concrete outer reinforcing sleeve is poured out of the pipeline body. Two ends of the pipeline body are exposed out of the concrete outer reinforcing sleeve to form a joint end. The compound pipeline improves the anti-pressure ability of the pipeline effectively, enhances the anti-floating ability of the pipeline effectively, improves the stability of the pipeline in a using process, improves the corrosion resistance of the steel pipe and prolongs the service life of the steel pipe.

Description

technical field [0001] The invention belongs to the technical field of ultra-deep buried pipelines, and relates to pipeline strength and deformation resistance technologies, in particular to a composite pipeline for improving the strength and deformation resistance of ultra-deep buried steel pipes. Background technique [0002] In the daily laying of ultra-deep buried steel pipes, the pipes are arranged horizontally. Under the vertical pressure of the fill and the ground load, due to the small rigidity of the thin-walled pipe shell, it is easy to produce large deformation, and the cross-section of the pipe ring loses its perfect circle and becomes slightly The flat oval shape greatly affects the service life of buried steel pipes and the safety of underground pipelines, and also increases the maintenance cost of pipelines in the later stage. [0003] According to the calculation theory of the strength and deformation of buried steel pipes, the greater the depth of the buried...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/153F16L57/02F16L58/06
CPCF16L9/006F16L9/153F16L57/02F16L58/06
Inventor 周燕张凯刘中宪李琦
Owner TIANJIN CHENGJIAN UNIV
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