无人船在拦沙导堤施工水下地形勘测中的应用

Application of unmanned ships in underwater topographic survey of sand barrier dike construction

介绍无人船在水下地形勘测中的技术原理,通过无人船技术在兆河口拦沙导堤施工水下地形勘测中的实例应用,将作业测区所得经纬度和高程数据导入卫图软件生成水下拦沙导堤形态剖面图,结合数学软件(Matlab)读取各测量点坐标,形成相应的散点分布图与水下地形图,同时结合构建的水下地形进行拦沙导堤施工水下抛填状态分析。结果表明,三维视图下能较形象地呈现出测量区域的高低起伏状况,反映了无人船在拦沙导堤施工中进行水下地形勘测的实用性,说明无人船可辅助过程施工且保证施工质量。

This paper introduces the principle of using unmanned survey vessel technology in underwater topography survey.Through the example application of unmanned vessel technology in underwater topography survey of sand barrier dike construction in Zhaohekou,the longitude,latitude and elevation data obtained from the operational survey area were imported into satellite map to generate underwater sand barrier dike morphology profile,combined with Matlab to read the coordinates of each measurement point to form the corresponding scatter distribution map and underwater terrain map.The underwater topography of the constructed sand barrier construction was combined with the analysis of the underwater filling state.The results show that the three-dimensional view can present the high and low undulating conditions of the surveyed area,and also reflect the practicality of the unmanned vessel for underwater terrain survey in the sand barrier guide dike construction,indicating that the unmanned vessel can assist the construction process and ensure the construction quality.