船载海陆一体化三维地形测量技术在海岸带侵蚀淤积监测中的应用

Application of shipborne sea-land integrated three-dimensional terrain surveying technology in monitoring of coastal zone erosion and deposition

海岸带作为陆地与海洋的分界线,是海陆相互作用最强烈的地带,海岸带地形测量是海洋测绘任务的重要组成部分。为实现海岸带地形高效率、高精度、一体化测量,本文提出了海岸带船载海陆一体化三维地形测量技术。论文详细介绍了该测量技术的设备组成、工作原理及工作流程,并重点阐述了其关键技术。在此基础上,应用该技术对渤海湾津冀沿海两处典型海岸带开展海陆一体化三维地形测量,结果表明该技术可用于海岸带地区水上岸堤护坡及防潮坝位移监测,以及水下岸坡侵蚀淤积调查。

The coastal zone,as the boundary between the land and sea,is area with the most intense sea-land interaction.Moreover,the terrain survey in coastal zone is an important part of the marine surveying and mapping mission.In order to survey the coastal zone terrain with high-efficiency,high-precision,and integrated measurement,this paper proposes a shipborne sea-land integrated three-dimensional terrain surveying technology in the coastal zone.In addition,the paper introduces the equipment composition,operating principle and working process of the surveying technology in detail,and focuses on its key technologies.On that basis,this technology was used to carry out sea-land integrated three-dimensional terrain surveying on two typical coastal zones in the Tianjin-Hebei coast,Bohai Bay.The results show that this technology can be effectively applied to monitor the displacement of slope protection structure and sea embankment,and to investigate the underwater erosion and siltation along the coastal zone.