深海抗风浪网箱锚泊系统的设计

Mooring System Design for Storm-Proof Aquaculture Cages in Deep Sea Areas

通过对网箱框架、网衣在风、浪、流作用下的受力分析 ,建立网箱锚泊系统缆绳受力计算的数学模型。以国家十五“86 3”计划课题—“深海抗风浪网箱的研制”所设计的网箱为例 ,选定山东荣成市寻山海域 1 0年一遇的灾害海况为设计计算条件 ,根据 Morison公式 ,采用 Goodman- L ance方法求得单个网箱的锚泊力为 6 5 .6 7k N。在此基础上对网箱的锚泊系统进行设计 ,确定了锚泊系统每只锚重 2 5 0 kg,锚链重为 1 5 0 kg,缆绳长度为 33m。

The Morison formula and Goodman Lance method were employed to calculate the hydrodynamic loads acting on the cage and the tension of the mooring rope system. The experimental aquaculture cage, placed in the Xunshan sea area, Rongcheng City, Shandong Province for the project was used as an example for numerical calculation. The results show that the total load on the cage is about 65.67kN, and four anchors (4kg×250kg), four mooring chains (4kg×150kg) and four mooring ropes(4m×33m) are needed for operation in safety.