基于声学相机的水下潜坝三维信息重建试验研究  

Experimental study on 3D information reconstruction of submerged spur dike by acoustic camera

作　　者：李豪 张鹏[2] 杨胜发[2] 胡江[2] 李文杰[2] LI Hao;ZHANG Peng;YANG Sheng-fa;HU Jiang;LI Wen-jie(School of River&Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China;National Engineering Research Center of Inland Waterway Regulation,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]重庆交通大学河海学院,重庆400074 [2]重庆交通大学国家内河航道整治工程技术研究中心,重庆400074

出　　处：《水运工程》2022年第11期202-207,226,共7页Port & Waterway Engineering

基　　金：国家重点研发计划资助项目(2018YFB1600400)。

摘　　要：针对潜坝在水下毁坏情况难以实时监测的问题,引入声学相机对水下潜坝外形进行实时监测。基于声学相机的映射原理,提出采用多视角声学图像,建立多视点高度弧,并依据视点间约束关系,确定潜坝外形特征点三维信息的方法。结合该方法,开展室内潜坝模型外形特征点三维信息重建试验,结果表明:基于4个视点的声学图像重建的水下潜坝模型外形尺寸误差在0.8%~8.6%范围内,将该设备及方法应用于潜坝外形水毁情况实时监测具备实际可行性,可为航道部门进行整治建筑物维护提供可行的参考及思路。Regarding the problem that it is difficult to monitor the water-destruction of submerged spur dike in real time, this paper introduces acoustic camera to monitor the shape of submerged spur dike in real time. Based on the mapping principle of acoustic camera, a method is proposed to establish multi-view height arc using multi-view acoustic image and to determine the three-dimensional information of external structural feature points of submerged spur dike according to the constraint relationship between views. Combined with this method, the three-dimensional information reconstruction experiment of the shape feature points of the indoor submerged spur dike model is carried out. The results show that the external dimension error of the submerged super dike model reconstructed based on the acoustic image of four viewpoints is in the range of 0.8%~8.6%. It is feasible to apply the equipment and method to the real-time monitoring of submerged spur dike shape damage, which can provide a feasible reference and idea for the waterway department to maintain the regulation buildings.

关 键 词：潜坝 水毁监测 声学相机 三维信息重建 

分 类 号：TV698.1[水利工程—水利水电工程] U617.91[交通运输工程—船舶及航道工程]