摘要
海洋管线敷设预调查是确保海底管线敷设安全和有效的重要步骤。以渤海某海底电缆敷设前路由调查为例,详细介绍了多波束、侧扫声呐、浅地层剖面仪、磁力仪等4种常用海洋调查仪器的安装方法、作业流程、数据处理和工作中应注意的事项等。通过项目实践得出:多波束和侧扫声呐相结合使用能够更加准确地得到海床以上的各种数据信息,其中,多波束能够准确地提供水深和各种位置信息,侧扫声呐能够直观地对各种地物进行定性结论;浅地层剖面仪、磁力仪相结合使用能够更加完善地调查出海底泥面以下的地层厚度、管线位置和埋深等信息。综合应用多种仪器可以提高管线敷设预调查的准确性和效率,并降低潜在风险。然而,不同仪器之间的数据融合和处理也是一个挑战,需要采用合适的数据处理和分析方法,以确保获得可靠的结果。
The pre-survey of submarine cable laying is an important step to ensure the safety and effectiveness of the laying.Taking the route survey of a submarine cable in Bohai Sea as an example,this article introduces in detail the installation methods,operation procedures,data processing,and matters needing attention in the work of four commonly used marine survey instruments:multi-beam,side-scan sonar,shallow seismic profiler,and magnetometer.Through project practice,it is concluded that the combined use of multi-beam and side-scan sonar can obtain more accurate data information above the seabed.Multi-beam can provide accurate water depth and various position information,while side-scan sonar can provide qualitative conclusions on various features.The combined use of shallow seismic profiler and magnetometer can provide more comprehensive information on the thickness of subsea sediments,pipeline position,and burial depth.The comprehensive application of multiple instruments can improve the accuracy and efficiency of pipeline laying pre-survey and reduce potential risks.However,data fusion and processing between different instruments are also a challenge,and appropriate data processing and analysis methods need to be adopted to ensure reliable results.
作者
林玉国
高腾飞
王智
徐峰
崔守波
LIN Yu-guo;GAO Teng-fei;WANG Zhi;XU Feng;CUI Shou-bo(Shandong Geo-Surveying&Mapping Institute,Jinan Shandong 250002,China)
出处
《地矿测绘》
2024年第2期24-29,共6页
Surveying and Mapping of Geology and Mineral Resources
基金
山东省地质测绘院科技攻关项目(鲁地字[2022]16号)。
关键词
海底管线
电缆
多波束
侧扫声呐
submarine pipeline
cable
multi-beam
side-scan sonar
