长江大桥桥墩水域监测和分析

Monitoring and Analysis of the Yangtze River Bridge Pier Water Area

长江大桥桥墩受水流冲刷和泥沙淤积的影响,需要定期对桥墩水域地形进行监测和分析。结合安庆长江公路大桥水域监测实例,阐述了使用多波束测深系统和声学多普勒流速剖面仪(ADCP)对大桥水域进行联合监测,采用GIS软件对大桥水域地形进行冲淤计算,并制作了桥墩的立体图和大桥区域的水域冲淤变化图,分析了桥墩及附近水下地形与水流的变化,对桥墩的冲刷研究具有非常重要的意义,监测成果为大桥的安全运营提供了有益的安全保障。

The piers of the Yangtze River Bridge are affected by water erosion and sedimentation,and it is necessary to regularly monitor and analyze the topography of the pier water area.Combined with an example of monitoring the water area of the Anqing Yangtze River Highway Bridge,the multi-beam sounding system and the Acoustic Doppler Velocity Profiler(ADCP)are used to jointly monitor the water area of the bridge.The GIS software is used to calculate the erosion and deposition of the water area of the bridge.The three-dimensional map of the bridge pier and the erosion and deposition change map of the water area of the bridge area are made,the changes of the bridge pier and the nearby underwater terrain and water flow are analyzed,these are of great significance to the study of the erosion of the bridge pier,and the monitoring results provide a useful safety guarantee for the safe operation of the bridge.