Underwater cable laying system and method

Abstract

The invention belongs to the field of underwater cable laying, and particularly relates to an underwater cable laying system and method.The underwater cable laying system comprises a trencher and a coulter assembly arranged at the tail of the trencher, the coulter assembly comprises a support, jet coulters arranged on the two sides of the support and a cable pressing device arranged between the two jet coulters, and the underwater cable laying system further comprises a linear moving assembly and a rotating assembly; the two jet coulters are arranged on the support through a linear moving assembly and a rotating assembly respectively, the ditcher further comprises a base connecting the support and the ditcher, a rotating seat is arranged on the base, the support is rotationally arranged on the rotating seat, and the ditcher further comprises a driving part and a locking structure used for controlling the support and the base to rotate freely or lock. The two jet coulters can independently adjust the transverse position and lowering and lifting actions of the two jet coulters, the situation that underwater cables are crushed in the lowering process of the jet coulters is avoided, meanwhile, the support can freely rotate along the base or lock the adjustment angle, and in the cable burying process and the turning process, the mechanical structure of the coulter assembly cannot be damaged.

Description

technical field [0001] The invention belongs to the field of underwater cable laying, and in particular relates to an underwater cable laying system and method. Background technique [0002] The submarine cable is buried under the seabed. The operation process is very complicated. In the marine environment with very poor visibility, find the cable pre-laid on the seabed. Directly above. Then slowly lower the trench digging equipment to dig out the trench, and bury the submarine cable in the submarine cable. If the relative position of the buried equipment and the submarine cable is unfriendly, it is very likely that the submarine cable will be directly crushed during this process, causing huge losses. In addition, during the embedding process, there will always be a need for steering work, that is, when the cable is slightly bent, the vehicle should follow the cable for trenching operations. At this time, there will be a need to adjust the angle between the spray coulter a...

AI Technical Summary

Problems solved by technology

If the relative position of the buried equipment and the submarine cable is not friendly, it is very likely that the submarine cable will be directly crushed in the process, causing huge losses

In addition, during the embedding process, there will always be a need for steering work, that is, when the cable is slightly bent, the vehicle should follow the cable for trenching operations. At this time, there will be a need to adjust the angle between the spray coulter and the vehicle body. At present It is difficult to accurately control the angle range of adjustment, so the coulter will bear the extrusion force of the soil on both sides of the trench and the stress connected with the whole vehicle, which will cause deformation and damage of mechanical parts

Images