无人船测绘系统对大宁水库的水下地形测绘

Underwater Terrain Surveying and Mapping of Daning Reservoir by Unmanned Boat Surveying and Mapping System

随着水下测绘技术手段的发展,GPS-RTK结合测深仪的无人船水下三维地形测绘技术逐渐应用到实际中。南水北调是缓解中国北方水资源短缺的战略性工程,分东线、中线、西线三条调水线,其中中线工程北上直达北京南部的大宁水库。为了保证大宁水库的饮水质量以及满足南水北调工程的要求,要在大宁水库建造围堰,现采用无人船水下地形三维测绘系统对大宁水库部分水域进行水下地形测绘,获得水下三维数据,为建造围堰提供可靠基础数据。本文介绍了利用该设备进行大宁水库水下三维地形测绘的主要原理、流程和成果。

With the development of mapping technology means,unmanned boat underwater three-dimensional terrain mapping technology,consisted by GPS-RTK combined with the depth sounder,has gradually been applied to the actu-al.South-to-North Water Diversion is a strategic project to alleviate the shortage of water resources in the northern China.It is divided into three lines:the east line,the middle line and the west line.The middle line project is directly connected to the Daning Reservoir in the south of Beijing.In order to ensure the quality of drinking water in Daning Reservoir and meet the requirements of the South-to-North Water Diversion Project,a cofferdam should be built in Daning Reservoir.The underwater terrain surveying of Daning Reservoir is carried out by using the three-dimensional surveying and mapping system of unmanned boat.The underwater three-dimensional data are obtained to provide reli-able data for the construction of cofferdam.In this paper,the principle,work flow and the main results were intro-duced.