摘要
通过无人机倾斜摄影和三维探地雷达技术的融合应用,构建水库大坝的透彻型三维可视化数字模型,以提升水利工程的安全评估与维护水平,推动数字孪生技术在水利工程中的应用。采用无人机倾斜摄影技术获取水库大坝的表观三维模型,结合三维探地雷达技术探测其内部结构,通过点云化处理和配准融合,实现大坝内部隐蔽缺陷的精确定位与三维数字化展示,数据处理与分析(包括多视影像匹配、三维雷达切片及异常区域识别)。研究提出的多源数据融合方法成功构建了某水库大坝的透彻三维数字化模型,直观展示了大坝表观及内部结构,并对坝体内部疑似空洞区域的大小和位置进行了精确标注,实现了物理工程的同步直观表达,为大坝的维修养护提供了科学依据。相关成果不仅提升了水库大坝的安全评估精度,还为水利工程的数字孪生建设提供了技术支撑,促进了具有“四预”功能的数字孪生水库大坝仿真系统的建设,对提升水库大坝的服役韧性和水利信息化水平具有重要意义。
This study aims to construct a comprehensive three-dimensional visual digital model of reservoir dams through the integrated application of drone oblique photography and three-dimensional ground-penetrating radar technology,thereby enhancing the safety assessment and maintenance level of hydraulic engineering and promoting the application of digital twin technology in this field.By utilizing drone oblique photography to capture the external three-dimensional model of the reservoir dam and combining it with three-dimensional ground-penetrating radar to detect its internal structure,the study achieves precise localization and three-dimensional digital representation of hidden defects within the dam through point cloud processing and registration fusion.Data processing and analysis include multi-view image matching,three-dimensional radar slicing,and anomaly identification.The proposed multi-source data fusion method successfully constructs a comprehensive three-dimensional digital model of a reservoir dam,visually presenting both the external and internal structures of the dam,and accurately annotating the size and location of suspected voids within the dam body.This enables synchronous and intuitive representation of physical engineering,providing a scientific basis for dam maintenance and repair.The method not only improves the accuracy of safety assessments for reservoir dams but also offers technical support for the digital twin construction of hydraulic engineering.It advances the development of a digital twin reservoir dam simulation system with“four-pre”functions(prediction,prevention,preparedness,and response),significantly enhancing the operational resilience of reservoir dams and the informatization level of hydraulic engineering.
作者
张舒
徐云乾
黄文康
刘建文
袁明道
ZHANG Shu;XU Yunqian;HUANG Wenkang;LIU Jianwen;YUAN Mingdao(Guangdong Research Institute of Water Resources and Hydropower,Guangzhou 510635,China;State and Local Joint Engineering Laboratory of Estuarine Hydraulic Technology,Guangzhou 510635,China)
出处
《广东水利水电》
2025年第9期49-53,共5页
Guangdong Water Resources and Hydropower
基金
广东省水利科技创新项目(编号:2024-07)
关键词
无人机倾斜摄影
三维地质雷达
三维重建
隐患探测
水库大坝
drone-acquired oblique photography
3D Georadar
3D reconstruction
hazard detection
reservoir dams
