多波束测深系统在河床冲淤变化分析中的应用

Application of multi-beam sounding system in river bed erosion and sedimentation analysis

采用多波束测深系统开展长江录安洲夹江段河道水下地形监测,根据2013年~2018年汛后6次测量成果,通过生成河床冲淤色块图、全河段冲淤量统计等方法,对该段水下地形监测数据进行分析研究。结果表明,长江录安洲夹江段河道整体基本稳定,近年实施的护岸工程效果较好,但局部河段可能存在冲刷和滩地坍塌风险,需要在加强监测的同时,采取一定的防护措施确保河道稳定。

The multi-beam sounding system was used to monitor the underwater topography of the river in the Jiajiang section of Lu*anzhou on the Yangtze River. Based on the results of six measurements after the flood from 2013 to 2018, the riverbed erosion and silt block map and the statistics of the river*s erosion and sedimentation were generated Methods: Analyze and research the monitoring data of the underwater terrain. The results show that the river channel of the Jiajiang section of Luanzhou on the Yangtze River is basically stable and the bank protection works have been effective in recent years. However, some river sections may have the risk of erosion and beach collapse. It is necessary to strengthen the monitoring and take certain protective measures to ensure the river channel, stable.