多波束测深系统在西江九江险段汛前汛后监测分析中的应用

Application of Multibeam Bathymetry System to Monitoring and Analysis in Jiujiang Bridge Section of Xijiang River During 2014 Pre-Flood and Post-Flood

利用多波束测深系统开展西江干流九江大桥段河道汛前、汛后水下地形测量,并生成了水下地形三维图,利用GIS强大的空间分析技术开展汛前、汛后监测数据分析研究,结果表明该段河床是稳定的,但河床险段下游存在小幅河床冲刷,长期的冲刷可能会对河床产生危害,可采取一定的河床加固措施用以长期稳定该处河床。

The paper carried out underwater topographic survey in Jiujiang bridge section of XIjiang River during 2014 Pre-Flood and after flood by multibeam bathymetry system,and created 3D maps of the underwater terrain,and carried out the analysis and research of the monitoring data in Jiujiang bridge section of XIjiang River during 2014 Pre-Flood and after flood with the GIS spatial analysis technique.The results obviously indicated: The river bed was stable,but There was a small river bed scouring in the downstream of the dangerous river section,long term erosion may cause damage to the river bed,we Can take a certain river bed reinforcement measures in order to stabilize the river bed for a long time.