Abstract:The change situation and change trend of river are the important factors in the analysis on the flood control, navigation and hydrology of river. Especially in the river water situation complex and dangerous sections, the changes of the riverbed are complicated and the rules are difficult to find, which have a far-reaching influence on the navigation safety, flood control, waterlogging drainage, and the stability of hydraulic engineering facilities. The application of multi-beam sounding system in the analysis of riverbed change is studied according to the detailed measured data. The methods of multi-beam sounding system in the topographic data collection, data processing and data analysis of the inland river bottoms are explored. And a method of inverse analysis of riverbed changes based on the data of river bottom topography from the multi-beam sounding system is developed.
