基于点云的草甸型弯曲河岸的冲刷变形研究

Scouring deformation of meandering river bank on meadow based on point cloud

为研究黄河源区草甸型弯曲河流的崩岸机制,采用原位冲刷方法,以青海省黄南州河南县兰木错曲为研究对象进行草甸型弯曲河岸原位冲刷实验,使用徕卡MS50三维激光扫描全站仪进行扫描,利用Geomagic软件对扫描获取的点云数据进行处理,得到草甸型弯曲河岸原位冲刷之后准确的变形量,与传统钢尺量测冲刷变形量的方法相比,提高了测量精度和密度,对合理研究草甸型弯曲河流的崩岸机制具有一定的现实意义。

In-situ scouring was used in order to study the mechanism of meandering river bank collapse on meadow in the source area of the Yellow River. The Lanmucuoqu River in Henan county of Qinghai province was taken as the research object to do scour in situ experiments. The Leica MS50 3 D laser scanning electronic total station was used to scan the bend river bank and the Geomagic software was used to deal with the point cloud data obtained by the scanning. The obtained scouring deformation data of the bend bank were more accurate compared with traditional measuring deformation with steel ruler,the measurement accuracy and density have greatly increased. It is a practial significance to study reasonably the mechanism of bank collapse of meandering river on meadow.