Abstract: Based on the physical characteristics of underwater riprap, as well as the research, application and development of water geophysical exploration technology, the current major detection methods such as high-density resistivity method, ground penetrating radar, water seismic reflection method and side-scan sonar were applied in quality inspection of the riprap protection of Yangtze river. Moreover, detection tests were carried out at 10 underwater riprap projects along the Yangtze river section in Anhui province. Then, comparison and analysis were made. The advantages, disadvantages and application ranges of these methods were proposed, for reference.

Key words: high-density resistivity method, ground penetrating radar, water seismic reflection method, side-scan sonar, riprap protection of Yangtze river

摘要： 基于水域工程物探技术研究及应用现状和发展趋势，根据水下抛石体的物性特点、物探仪器和软件的发展水平，对高密度电法、探地雷达法和水域地震反射波法、侧扫声呐法等目前主要的工程物探方法，在长江抛石体质量检测中对其进行应用研究，在安徽省长江王家洲等10处护岸段水下抛石体工程中进行了试验。根据试验成果，对上述技术方法进行分析比较，提出各自的优缺点和使用范围。

关键词: 高密度电法, 探地雷达法, 水域地震反射波法, 侧扫声呐法, 长江抛石护岸