三维成像声呐在重力式码头工程中的应用

Application of three-dimensional imaging sonar in gravity wharf engineering

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。

In view of the underwater detection problem of gravity wharf , we probe into the application ofthree-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 wharfstructure size measurement , underwater obstacle recognition , caisson placin quality testing and caving detection.