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Multiphase submarine cable transversal arrangement circularly laying construction method

A submarine cable laying and submarine cable technology, which is applied in the construction field of multi-phase submarine cable horizontal arrangement and circular laying, can solve the problems that are not suitable for large-diameter submarine cable laying construction, submarine cable laying process description, etc.

Inactive Publication Date: 2013-08-14
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is not suitable for the laying construction of large-diameter submarine cables, and the process of laying submarine cables is not described

Method used

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  • Multiphase submarine cable transversal arrangement circularly laying construction method
  • Multiphase submarine cable transversal arrangement circularly laying construction method
  • Multiphase submarine cable transversal arrangement circularly laying construction method

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Experimental program
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Embodiment Construction

[0071] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0072] Such as figure 1 As shown, a brief introduction to the technological process: construction preparation (selection of submarine cable laying ship, submarine cable transfer, excavation of shore beach submarine cable trenches, certification, sea sweeping trial and laying of the main traction cable, etc.) → landing construction at the beginning → mid-sea section Cable laying construction → terminal landing construction (including circular laying construction) → submarine cable protection.

[0073] 1. On-site construction preparation

[0074] 1. Selection of submarine cable laying vessel

[0075] The construction and laying vessel is selected according to parameters such as the outer diameter R of the submarine cable drum, the maximum allowable height h of the submarine cable drum, the minimum back-twisting height and the total weight of the submari...

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Abstract

The invention discloses a multiphase transversal arrangement circular laying construction method, which adopts a major engineering barge as a submarine cable laying ship, and adopts transversal arrangement of submarine cables, back-twist of a pi-shaped back-twist rack and transverse pull of heave away anchors of the barge, and comprises the concrete steps of construction preparation, top end landing construction, middle sea segment laying construction, tail end landing construction, circularly laying construction and submarine cable protection. The method has the advantages that the effective operation area is large, the adverse environmental impact can be effectively resisted, the laying and inclination adjustment efficiency is improved, measurement and control can be accurately performed, the routing deviation is avoided, the degree of automation is high, and the construction efficiency is high.

Description

technical field [0001] The invention relates to a laying method of a submarine cable, in particular to a construction method for laying multi-phase submarine cables in a horizontal arrangement and circulation. Background technique [0002] With the development of science and technology, the demand for power in coastal areas, especially islands and cross-strait areas, and the power transmission demand of offshore wind farms are increasing, so the requirements for the laying of submarine power cables, the carrier of power transmission, are getting higher and higher. Existing cable laying methods can no longer meet the needs of reality. [0003] Chinese patent application CN102361315A discloses a three-synchronous laying construction method for underground cables in sea areas, including ship laying, cable tray installation, ground fiber installation, cable fiber direct, ship laying start, burial, marking, cable connection, etc. steps, which reduces the proportion of manual ope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G9/02H02G1/10
Inventor 刘福卿苗培青高华伟李琨单波韩义成唐爽陈新刚王伟靳书栋韩延峰屠庆波钟治艳
Owner STATE GRID CORP OF CHINA
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