长江口排水板水下成像检测技术

Underwater imaging detection technology for plastic drainage belt in the Yangtze estuary

针对长江口深水区域塑料排水板施工检测手段不足的问题,提出水下声学成像检测的新方法,采用高分辨率侧扫声呐和双频识别声呐,实现了水下排水板检测的可视化与可量测。获取水下排水板清晰的影像资料,并且通过双频识别声呐水下定点全环摄像方式能够实现排水板定量检测。新方法弥补了现有检测手段的不足,可作为现有检测手段的重要补充。

Aiming at the problem of inadequate detection method of the plastic drainage belt in the deepwater area of the Yangtze estuary,we propose a new method of underwater acoustic imaging detection,by which we realize the visualization and measurement of underwater drainage belt adopting the high-resolution side-scan sonar system and DIDSON(dual-frequency identification sonar),obtain the clear image of the underwater drainage belt,and realize the quantitative detection of the plastic drainage belt by the DIDSON using a fixed-point full loop imaging mode.The new method makes up the insufficiency of the existing detection means,and can be used as an important supplement to the existing detection methods.