三维成像声呐在重力式码头工程中的应用

针对重力式码头水下结构检测的难题,开展三维成像声呐技术应用研究。分析三维成像声呐的工作原理和仪器构成,研究三维成像声呐应用于重力式码头工程时的测站布置、参数设置、数据处理等。通过点云图像,定性检测了水下障碍物、沉箱安放质量及冲刷淘空;定量检测了构件尺寸、沉箱错台和沉箱间隙;绘制了水下地形图。本文研究结果可为其他水下工程检测提供借鉴参考。实现了重力式码头水下结构外形测量、前沿障碍物识别、沉箱安放质量检测和基础局部冲刷淘空检测。

Application of three-dimensional imaging sonar in gravity wharf engineering

In view of the underwater detection problem of gravity wharf,we probe into the application of three-dimensional imaging sonar.We analyze the working principle and instruments,and study the station layout,parameter settings and data processing of three-dimensional imaging sonar in gravity wharf engineering.By point cloud image,we realize the qualitative detection of the underwater obstacle,caisson placing quality and caving,and quantitative detection of the component size,caisson fault and caisson clearance.Moreover,the underwater topographic maps are drawn.The article can provide reference for other under water enineering inspection.Applying this technology to the gravity wharf in the detection of underwater structure,it is implemented of the gravity wharf structure size measurement,underwater obstacle recognition,caisson placin quality testing and caving detection.