无人船搭载声呐设备在大岗山水下检测中的试验应用

Test Application of Sonar Equipment on Unmanned Ship for Underwater Inspection in Dagangshan Hydropwer Station

随着水下测绘技术手段、自动化控制技术和通信技术的发展,越来越多的先进仪器设备与无人远程智能控制设备的结合变得可能与可靠,GPS-RTK结合声呐设备的无人船水下检测技术逐步应用到水电工程中。大岗山水电站位于大渡河干流的中游,其库区属大渡河中游产沙区,坝址河段多年平均悬移质年输沙量2430万t,为准确获取大坝蓄水运行后大坝坝前泥沙淤积情况,采用无人船搭载声呐设备对大岗山水电站坝前至泄洪洞进口区域进行了水下地形测绘,获得了区域水下三维数据,为电站运行提供可靠基础数据。

With development of underwater survey and mapping technology,automation control technology and communication technology,combination of more and more advanced instruments and equipment with unmanned remote intelligent control equipment becomes possible and reliable,GPS-RTK combined with sonar equipment for unmanned ship underwater detection technology is gradually applied in hydropower engineering.Dagangshan Hydropower Station is located in the middle reaches of the trunk stream of the Dadu River.Its reservoir area is a sediment-producing area in the middle reaches of the Dadu River and the average annual sediment yield in the river section of the dam site is 24.3 million tons.To understand sediment status before the dam when it is in operation,unmanned ship equipped with sonar equipment is used to conduct underwater topographic survey and mapping from the dam to the spillway entrance of the Dagangshan Hydropower Station,thus underwater three-dimensional data of the region is obtained,and it provides reliable basic data for operation of the power station.