Abstract: During the operation of concrete face rockfill dams, seepage caused by factors such as uncoordinated deformation of dam body and material aging may seriously threaten the dam safety. Traditional detection methods such as diver inspection and single geophysical technique detection are limited by their restricted coverage and low reliability, making them inadequate for precise detection in complex underwater environments. This paper proposes a detection system centered on the integration of "acoustic-optical-electrical" multiple technologies. a complete detection technology chain of "monitoring and analysis- wide- area survey- local detailed investigation- precise verification" is constructed. Furthermore, taking a concrete face rockfill dam in Southeast Asia as an example, the applicability and reliability of this technology are verified.

Key words: concrete face rockfill dam, seepage detection, acoustic seepage detection, underwater robot, integration of acoustic-optical-electrical detection

摘要： 混凝土面板堆石坝运行过程中，因坝体变形不协调、材料老化等因素引发的渗漏问题严重威胁大坝安全。传统检测手段如潜水员探摸、单一物探法等，因检测范围局限、结果可靠性低，难以满足复杂水下环境的精准检测需求。笔者提出以“声-光-电”多技术融合为核心的检测体系，通过声波渗漏探测法（声法）、水下机器人高清摄像及示踪技术（光学）、伪随机流场法（电法）的协同作业，构建“监测分析-广域普查-局部详查-精准验证”的完整检测技术链条，并以东南亚某面板堆石坝为工程案例，验证了该技术的适用性与可靠性。

关键词: 面板堆石坝, 渗漏检测, 声波渗漏探测, 水下机器人, 声-光-电融合