Research onintelligent dam leakage detection technology using quasi-flow field method
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.
Dam hazard detectionQuasi-flow field methodUnderwater submersiblesThree-component
NETL
NSTL
万方数据
