某水利枢纽消力池底板及海漫水下检测方法及工程应用  

Underwater Detection Method and Engineering Application for Stilling Basin Apron and Riprap of a Water Conservancy Project

作　　者：许吉羊 杨光 刘畅 耿梓涵 XU Jiyang;YANG Guang;LIU Chang;GENG Zihan(Wuhan Changjiang Waterway Rescue and Salvage Bureau,Wuhan,430014;China Water Resources Beifang Investigation,Design and Research Co.Ltd.,Tianjin,300222)

机构地区：[1]武汉长江航道救助打捞局,湖北武汉430014 [2]中水北方勘测设计研究有限责任公司,天津300222

出　　处：《水利水电工程设计》2024年第2期45-47,共3页Design of Water Resources & Hydroelectric Engineering

基　　金：国家服务业引导基金项目(编号:2018-120103-74-03-129388)。

摘　　要：随着水利枢纽的长期运行,大坝坝体、消能设施、隧洞、护岸等表观磨损问题将日趋严重,尤其是对消力池底板、海漫等消能设施而言,淘蚀、冲刷、淤积等问题时常存在,如果定期/不定期进行检测并采取相应的维修、维护措施,一旦问题严重,将会影响水利工程的安全运行。以某水利枢纽消力池底板及海漫为研究对象,采用“初步探查—重点详查—问题判断—综合描述”的一体化检测思路,对消力池底板及海漫表面的混凝土缺陷及淤积情况展开研究。在具体实施过程中,充分利用声学探测技术“精度低但定位准确”及水下影像探测技术“精度高但定位精度差”的特点,将2种方法相结合并有效应用于消力池底板水下检测。实践证明,该技术思路及技术方法在消力池底板及海漫水下检测中取得很好的应用效果,值得在实践中进行推广。With the long-term operation of the water conservancy project,the apparent wear on the dam body,energy dissipation facilities,tunnels,revetments will become increasingly severe.Especially for energy dissipation facilities such as the apron and riprap of stilling basin,problems like scouring,erosion,and sedimentation often occur.If no periodic inspections are conducted and corresponding maintenance measures are taken,serious issues may affect the safe operation of water conservancy projects.This paper takes the apron and riprap of stilling basin as the research object,and adopts an integrated detection approach of"preliminary exploration-detailed investigation-problem identification-comprehensive description"to investigate concrete defects and sedimentation on the surface of the apron and riprap.In the specific implementation process,the advantages of acoustic detection technology("low accuracy but accurate positioning")and the underwater imaging detection technology("high accuracy but poor positioning")are fully utilized,and effectively combining the two methods for underwater detection of the apron.Practice has proven that this this technical approach and methods have achieved good application effect in underwater detection of apron and riprap,and it is worth promoting in practice.

关 键 词：ROV搭载 水下检测 声学探测技术 水下影像探测技术 

分 类 号：TV698[水利工程—水利水电工程]