Lifting method of submarine cable terminal landing platform

Abstract

The invention relates to a lifting method of a submarine cable terminal landing platform, which comprises the following steps: 1) drawing a steel wire rope of a hoist of the platform onto a deck of a cable laying ship; 2) connecting a lute head short rope on a submarine cable dragging head; 3) mounting a clamp on a submarine cable; 4) connecting the steel wire rope of the hoist of the platform with the clamp, and laying and fixing the steel wire rope on the submarine cable through a plurality of binding bands; 5) connecting the steel wire rope of the hoist with the short rope into a whole in the position of the end of the submarine cable; 6) performing smooth treatment on all connecting points; 7) starting a cable laying machine on the cable laying ship of the hoist of the platform to synchronously send out the submarine cable, removing a steel wire rope clip after the head of the submarine cable is out of a submarine cable protecting pipe, untying the binding bands one by one, and separating the steel wire rope from the submarine cable; and 8) placing the submarine cable on the deck till the clamp is out of the submarine cable protecting pipe, and enabling the submarine cable to land the platform. The whole process adopts the continuous operation almost, the head of the submarine cable is rapidly lifted in place, the operation is time-saving and labor-saving, operation ship days are reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a lifting method, in particular to a lifting method for a submarine cable terminal landing platform, and belongs to the technical field of offshore oil engineering. Background technique [0002] The construction of offshore oil fields and the development of new energy sources such as offshore wind power generation require a large number of submarine cables to connect the central control platform to each production platform or each windmill for power and communication support. The styles of submarine cables mainly include: power cables, optical cables, photoelectric composite cables and remote control umbilical cables. The laying of these submarine cables is very different from the laying of land cables, and the laying of submarine cables is relatively complicated. [0003] In the process of submarine cable laying, it is necessary to use professional cable laying ships and corresponding professional cable laying equipment. Thes...

AI Technical Summary

Problems solved by technology

[0009] (4) At this point, the pulling and lifting work of the submarine cable is far from over. In general, even if the junction box is located near the protective tube, the submarine cable needs to be pulled out of the protective tube for a length of 12 meters to 15 meters to meet the requirements of terminal production; special Under certain circumstances, some submarine cables need to be pulled out 40 meters to 50 meters to reach the junction box

In submarine cable laying projects, especially in sea areas with poor sea conditions, most of the cable laying ships are large-scale operating ships, and the daily cost is extremely high

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