海底光缆锚害成因的实验研究

Experimental Research on Submarine Fiber Optic Cable Faults Caused by Anchor

造成海底光缆故障的主要原因是船锚的钩挂。为研究海底光缆锚害的成因,根据现有的经验及理论基础,设计了相关的研究实验。实验分为压扁试验和钩挂试验两部分。检测海底光缆受力时光功率衰减的变化,研究了海底光缆的结构与其抗侧压性能的关系;设计了模拟海底光缆受船锚钩挂的受力装置,研究了不同锚齿直径对海底光缆的损伤影响。该实验的结果为海底光缆的结构设计和制造、施工提供了有意义的指导,为进一步的研究积累了可靠的数据。

The main course of the faults for submarine fiber optic cable is the dragging by anchor. In order to study the courses of anchor caused faults. An experiment is designed based on the existing experience and theoretical basis. The experiment is divided into two parts： crush test and anchor towing （tensile） test. Through detecting the optical power loss variation of the submarine fiber optic cable when it is subject to force, the relation between the structure and the crush property of the submarine fiber optic cable is studied, and the force applying device to simulate the cable being applied force due to anchor dragging is designed, in addition the effect of different anchor diameters on the damage of submarine fiber optic cable. The experiment results offer significant guidance for the structure design, manufacturing, and installation of submarine fiber optic cable, and accumulate some reliable data for further study.