参量阵浅剖探测技术在海底管线探测中的应用

Application of Parametric Array Sub-bottom Profile Detection Technology in Pipeline Detection

以航道、港口海底管线为探测目标,以浅地层剖面( sub-bottom profile)探测技术为主要技术手段,结合SES2000 系列浅地层剖面探测系统在近海航道、港口海底管线探测中的应用案例,探讨 SBP 探测技术在管线探测中的应用。就浅剖图像中的航道、港口海底埋深管线识别定位中存在的技术难题,提出了基于波路径的偏移处理定性分析法和基于信号分析的管道反射弧识别定量计算法进行管道埋深的分析与计算,结合 DGPS 导航系统可准确获取管线所在平面位置与埋深深度。对于航道适航安全、港口安全建设具有积极意义。

This paper takes the channel and port submarine pipelines as the detection target,and uses the subbottom profile detection technology as the main technical means,and combines with the application case of SES2000 series sub-bottom profile detection system in offshore channel and port submarine pipeline detection, the application of SBP detection technology in pipeline detection is discussed.Aiming at the technical problems in the location identification of the navigation channel and the seabed buried depth pipelines in the sub-bottom profile image,the wave path-based migration processing qualitative analysis method and the pipeline reflection arc recognition quantitative calculation method based on signal analysis are proposed to analyze and calculate the buried depth of the pipelines,and combines with the DGPS navigation system can accurately obtain the plane position and depth of the pipeline. It' s of positive significance for airworthiness safety and port safety construction of navigation channels.