Landing section cable laying system and laying method

Abstract

The invention relates to the submarine cable laying technology field and especially relates to a landing section cable laying system and a laying method. The system comprises a land terminal, a cable-laying ship, and multiple cable pulling brackets. A lower end of each cable pulling bracket is a pipe pile used for fixing in a soil interface, and an upper end is provided with a holding groove structure for holding and supporting a cable. The multiple cable pulling brackets are arranged along a cable design route which is connected between the land terminal and the cable-laying ship at intervalsto form a cable pulling channel. The cable pulling channel includes a plurality of straight segments, and the plurality of straight segments form a broken line shape. A pulling device is arranged ateach straight segment of the cable pulling channel, and a pulling device is used to pull the cable from the cable-laying ship towards the land terminal. The landing section cable laying system and thelaying method of the invention do not rely on a tidal action of sea through pulling the cable in the cable pulling channel and avoid a tide restriction, and operation time is increased, which is goodfor reducing a construction period and reasonably arranging a construction schedule.

Description

technical field [0001] The invention relates to the technical field of submarine cable laying, in particular to a cable laying system and a laying method for a landing section. Background technique [0002] The laying of the submarine cable landing section usually adopts the method of first pulling and then laying. Its basic method steps are: [0003] 1. Landing on the beach: the cable-laying ship uses the high tide period to land on the beach to shorten the distance of the cable landing section as much as possible; the cable-laying ship is in place through the mooring system as the starting point for cable landing pull; [0004] 2. Landing pulling: use the pulling equipment of the land terminal and the transfer platform to pull the cable released from the cable laying ship to the land terminal along the cable design route; [0005] 3. Cable laying and burial: dig a trench at the cable design route, lift the cable into the trench, and then lay and bury it. [0006] Landin...

AI Technical Summary

Problems solved by technology

On the other hand, for the long-distance intertidal zone, it generally takes 5 to 10 days or even longer to lay cables. The time in which cable laying work can be carried out is further shortened

[0018] Finally, when carrying out the cable pulling operation, it is necessary to bind the floating tire on the cable at the beginning of the transition ditch, and to remove the floating tire from the cable at the end of the transition ditch, which not only increases the manpower workload, but also limits the cable pull. pulling speed

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