几种海底电缆断裂点外部探测方法及对比  

Several methods and comparison of external detection of submarine cable breaking points

作　　者：龙成 季祥坤 LONG Cheng;JI Xiangkun(Tianjin Research Institute for Water Transport Engineering,M.O.T,Tianjin 300456,China;Tianjin Survey and Design Institute for Water Transport Engineering Co,Ltd,Tianjin 300456,China;Tianjin Key Laboratory of Water Transport Engineering Survey Technology,Tianjin 300456,China)

机构地区：[1]交通运输部天津水运工程科学研究所,天津300456 [2]天津水运工程勘察设计院有限公司,天津300456 [3]天津市水运工程测绘技术企业重点实验室,天津300456

出　　处：《海洋测绘》2023年第5期27-30,40,共5页Hydrographic Surveying and Charting

基　　金：广东省海洋经济发展(海洋六大产业)专项资金(粤自然资合[2021]001号);中国南方电网有限责任公司超高压输电公司科技项目(CGYKJXM202102)。

摘　　要：针对目前海上风电场运维阶段海缆断点快速探测及修复的需求,研究了海底电缆断点探测技术。结合具体案例,在判别特征、探测效率、干扰因素、定位精度等方面分析了声学和电磁学在海缆断点的探测能力。声学探测法具有断点判别特征明显、探测效率快、精度高、易受底质扰动影响等特点,电磁法与声学探测法存在较好的互补。实际作业中根据具体环境制定合适的探测方案,可有效提高断点探测效率和准确度。上述方法可广泛用于海底电缆断点检测领域,促进我国海上风电资源开发利用。Submarine cable breaking point detection technologies were studied in response to the current demand for rapid detection and repairment of submarine cable breakpoints during the operation and maintenance period of offshore wind farms.By combining concrete cases,the detection capabilities of acoustics and electromagnetism methods in submarine cable breakpoints were analyzed in terms of discriminative features,detection efficiency,interference factors,positioning accuracy,etc.The acoustic detection method has the characteristics of obvious breakpoint discrimination,good detection efficiency,high accuracy,and susceptibility to sediment disturbances.Good complementarity exists between the electromagnetic method and the acoustic detection method.The efficiency and accuracy of breakpoint detection can be effectively improved by making appropriate detection plans according to the specific environment at practical work.The methods mentioned above can be widely used in the field of submarine cable breakpoint detection and help improve the development and utilization of offshore wind power resources in China.

关 键 词：海洋测绘 海底电缆 断裂点 合成孔径声纳 侧扫声纳 电磁法 

分 类 号：P229.5[天文地球—大地测量学与测量工程]