海底电缆铺设回泥面的水动力分析

针对实际电缆铺设工程成本过大及耗时太长的问题,基于理论分析和数值模拟对文昌海底电缆铺设回泥面进行比较分析。通过水动力分析软件Orca Flex建立电缆铺设的数值模型,重点讨论吊缆的吊放长度和施工船舶在不同阶段的航行速度对电缆安全性能的影响,根据电缆的最大有效张力和最小弯曲半径对电缆铺设提出相应的建议,得到的结论对实际工程有一定的参考价值。

Hydrodynamic Analysis of Sub-sea Cable during Process of Laying Back to Seabed

According to the problem of large cost and long time of the actual cable-laying engineering, the Wenchang sub-sea cable-laying of laying back to the seabed is compared and analyzed based on the theoretical analysis and numerical simulation. An equivalent model of the submarine cable laying is established by hydrodynamic analysis software OrcaFlex. The effects of the cable hanging length and the headway of engineering ship at the different stages on the safety of cable are discussed. With the basis of the maximum effective tension and the minimum bending radius of the cable, the relative suggestions are presented for cable laying. The conclusion can be used as a reference in the practical engineering.