拟流场法智能堤坝渗漏探测技术研究  

Research onintelligent dam leakage detection technology using quasi-flow field method

作　　者：胡远鑫 蒋奇云 裴婧[1,2,3] HU YuanXin;JIANG QiYun;PEI Jing(Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring(Central South University),Ministry of Education,Changsha 410083,China;Key Laboratory of Non-ferrous Resources and Geological Hazard Detection,Changsha 410083,China;School of Geosciences and Info-Physics,Central South University,South Lushan Road,Changsha 410083,China;The Chinese University of Hong Kong,Shenzhen,Shenzhen 518172,China;Institute of Urban Underground Space and Energy Studies,The Chinese University of Hong Kong,Shenzhen,Shenzhen 518172,China)

机构地区：[1]中南大学,有色金属成矿预测与地质环境监测教育部重点实验室,长沙410083 [2]中南大学,有色资源与地质灾害探查湖南省重点实验室,长沙410083 [3]中南大学地球科学与信息物理学院,长沙410083 [4]香港中文大学(深圳),深圳518172 [5]香港中文大学(深圳)城市地下空间及能源研究院,深圳518172

出　　处：《地球物理学进展》2024年第2期781-787,共7页Progress in Geophysics

摘　　要：堤坝隐患探测是堤防安全中重要的一环,拟流场法作为一种准确性高、实时性强的地球物理无损检测方法,在堤坝隐患探测中应用广泛.目前人工拖曳测量施工方式操作复杂,拖曳时探头容易倾斜,影响原始数据质量.本文构建了三维堤坝管涌模型,利用Comsol有限元分析软件进行拟流场法数值正演模拟,探讨了堤坝探测最佳观测分量,分析了探头倾斜对数据质量的影响;通过对正演模拟结果进行分析计算,并以工程经验为参考,得到结论:拟流场法堤坝管涌探测的最佳观测分量是竖直分量;探头倾斜对竖直分量的影响表现在两个方面:大角度的倾斜容易造成数据失真,无规律的急剧倾斜容易造成数据紊乱.最后本文提出了一种姿态校正手段,结合水下潜航器研究现状,为未来拟流场法施工智能化与自动化提出改进方向.Detecting hidden risks in embankments is an important aspect of dam safety.The pseudo-flow field method,known for its high accuracy and real-time capabilities,is widely used for geophysical non-destructive testing in embankment hazard detection.Currently,the manual towing measurement method is complex,and the tilting of the probe during towing affects the quality of the raw data.In this study,we constructed a three-dimensional model of embankment seepage and conducted numerical forward simulation using Comsol finite element analysis software to explore the optimal observation component for embankment detection and analyze the impact of probe tilting on data quality.By analyzing and calculating the results of the forward simulation and drawing on engineering experience,we concluded that the vertical component is the optimal observation component for pseudo-flow field detection of embankment seepage.The influence of probe tilting on the vertical component manifests in two aspects:large-angle tilting can cause data distortion,while irregular and sharp tilting can result in data disorder.Finally,we proposed an attitude correction method and suggested improvements for the future intelligent and automated construction of the pseudo-flow field method,taking into account the current research status of underwater submersibles.

关 键 词：堤坝隐患探测 拟流场法 水下潜航器 三分量 

分 类 号：P631[天文地球—地质矿产勘探]