黄金坪水电站泄洪建筑物水下检查技术探索与实践  

Exploration and Practice of Underwater Inspection Technology of Flood Discharge Structures of Huangjinping Hydropower Station

作　　者：刘玥 LIU Yue(Datang International Power Generation Ganzi Hydropower Development Co.,Ltd.,Ganzi Sichuan 626001)

机构地区：[1]四川大唐国际甘孜水电开发有限公司,四川甘孜626001

出　　处：《四川水力发电》2023年第S02期130-138,共9页Sichuan Hydropower

摘　　要：在高速水流的长期冲刷下,泄洪建筑物混凝土易出现冲蚀,下游易出现冲坑,这些问题往往都隐藏在水下,平常不易被人发现,对水电站的安全稳定运行造成了威胁。传统的潜水员水下检查技术受下潜时间和下潜深度的限制,作业范围有限,难以对水工建筑物的水下部分进行大范围的检查,同时由于水下环境复杂,潜水员在水下作业时会有生命危险,采用多波束声呐系统和水下无人潜航器的方法对黄金坪水电站溢洪道消力池进行水下检查,测量得到了消力池水下冲坑的精确数据。该技术突破了水下检查作业范围的限制,在保证人员安全的情况下,提高了工作效率,也为消力池水下缺陷修复提供了可靠的数据支撑,为同类水下建筑物检查提供参考。Under the long-term erosion of high-speed water flow,the concrete of flood discharge buildings is prone to erosion,and downstream erosion pits are prone to occur.These problems are often hidden underwater and are not easily discovered,posing a threat to the safe and stable operation of hydropower stations.The traditional underwater inspection technology for divers is limited by the diving time and depth,and the scope of operation is limited,making it difficult to conduct large-scale inspections of the underwater parts of hydraulic structures.At the same time,due to the complex underwater environment,divers may face life risks when working underwater.Therefore,a multi-beam sonar system and an underwater unmanned underwater vehicle were used to conduct underwater inspections of the spillway stilling pool of the Huangjinping Hydropower Station,and accurate data of the underwater flushing pit of the stilling pool was obtained through measurement.This technology breaks through the limitations of the scope of underwater inspection operations,improves work efficiency while ensuring personnel safety,and provides reliable data support for repairing underwater defects in the stilling basin,providing reference for similar underwater building inspections.

关 键 词：水工建筑物 消力池 水下检查 多波束声呐系统 水下无人潜航器 

分 类 号：TV698.1[水利工程—水利水电工程] U666.75[交通运输工程—船舶及航道工程] TM622[交通运输工程—船舶与海洋工程]