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Cable laying ship deck arrangement and construction method for laying long-distance submarine cables in sandbank sections

A cable-laying vessel, long-distance technology, applied in the direction of cable-laying vessels, etc.

Pending Publication Date: 2019-12-06
北京海瑞兴能源科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the construction problem of long-distance sandbar section submarine cable laying and avoid the problem that the actual cable laying route deviates from the design route, the present invention proposes a cable-laying ship deck layout and construction method for long-distance sandbar section submarine cable laying

Method used

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  • Cable laying ship deck arrangement and construction method for laying long-distance submarine cables in sandbank sections
  • Cable laying ship deck arrangement and construction method for laying long-distance submarine cables in sandbank sections
  • Cable laying ship deck arrangement and construction method for laying long-distance submarine cables in sandbank sections

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Embodiment Construction

[0044] Such as figure 1 , the present invention includes a cable laying ship 1, an electric cable storage reel 2 distributed on the deck of the cable laying ship 1, a cable laying operation line 3, and a cable embedding plow 4, and a windlass 5, an anchor cable 6, and a boat are distributed on the four corners of the deck. The mooring system composed of anchor 7 is characterized in that a crane 8, an excavator 9, and a group of ladder structures 10 for the excavator 9 to lay the cable ship 1 are arranged at the rear of the deck of the cable-laying ship 1.

[0045] The cable-laying ship 1 is selected to have a smaller no-load draft, so that it meets the requirement that the draft after loading the cable 12 is smaller than the water depth during the high tide period of the sandbar section; the structural strength of the cable-laying ship 1 meets the requirements of the beaching working condition.

[0046] The lifting capacity and arm length of the crane 8 meet the requirements f...

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Abstract

The invention relates to the technical field of submarine cable laying, and discloses a cable laying ship deck arrangement and construction method for laying long-distance submarine cables in sandbanksections. The method involves a cable laying ship, an electric cable storing reel, a cable paving working line, a cable burying plough and an anchoring system, wherein the electric cable storing reel, the cable paving working line and the cable burying plough are distributed on a cable laying ship deck; and the anchoring systems, each comprising an anchoring machine, an anchoring cable and a shipanchor, are distributed at four corners of the cable laying ship deck. The method is characterized in that a crane, an elevator, and a group of ladder climbing structure for loading and unloading theexcavator on a ship body are arranged on the deck. The invention also provides a construction method characterized by anchoring in case of low tide and exposure to the beach and laying the cables incase of high tide and water in the ship. Compared with an existing method, the method has the advantages that the tidal rule of the sandbank section is fully utilized, the method of moving the stranded cable to the ship is reserved, and the problem that an actual cable laying route is greatly deviated from the designed route is avoided.

Description

technical field [0001] The invention relates to the technical field of submarine cable laying, in particular to a cable-laying ship deck layout and construction method for laying long-distance sandbar section submarine cables. Background technique [0002] Submarine cables are important power transmission and signal transmission facilities connecting offshore facilities and land facilities. For submarine cable laying construction, it is necessary to select an appropriate construction method according to local conditions according to the marine hydrology, topography, and landform conditions of the sea area where the cable design route passes, especially the different water depth conditions. [0003] The long-distance sandbar section refers to the sandbar section characterized by water at high tide and exposed beach at low tide similar to the intertidal zone; meanwhile, the cable-laying ship cannot use a high tide to cross the past sandbar section. For the long-distance sandb...

Claims

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Application Information

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IPC IPC(8): B63B35/04
CPCB63B35/04
Inventor 柴宝亮董立军郭辉
Owner 北京海瑞兴能源科技有限责任公司
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