水利信息化Issue(1)：59-62,70,5.DOI:10.19364/j.1674-9405.2026.01.009
基于跨孔雷达CT技术的大直沟水库大坝渗漏缺陷探测研究
Research on leakage defect detection of Dazhigou Reservoir dam based on cross-hole radar CT technology
夏春1
作者信息
- 1. 湖南湘建智科工程技术有限公司,湖南 长沙 410200
- 折叠
摘要
Abstract
To improve the detection accuracy of dam leakage defects,a detection method for leakage defects in the Dazhigou Reservoir dam based on cross-hole radar CT technology was proposed.This study combined geological survey and hydrological monitoring data from the Dazhigou Reservoir to construct a cross-hole radar CT detection model.By selecting a high-frequency antenna cross-hole radar system and appropriately arranging three high-density electrical survey lines,and taking the apparent resistivity change rate as the key indicator,the location and size of leakage defects were accurately determined by comparing the variation in apparent resistivity between two adjacent points.The experimental results demonstrated that cross-hole radar CT technology can clearly identify small-scale leakage defects inside the dam body,with a positioning error of less than 40 mm,and can accurately detect the crack width of seepage defects.This study has significant theoretical importance and practical value for improving dam safety monitoring and ensuring the stable operation of the reservoir.关键词
跨孔雷达CT技术/渗漏缺陷探测/高密度电法测线/水库大坝/大直沟水库Key words
cross-hole radar CT technology/leakage defect detection/high-density electrical survey line/reservoir dam/Dazhigou Reservoir分类
建筑与水利引用本文复制引用
夏春..基于跨孔雷达CT技术的大直沟水库大坝渗漏缺陷探测研究[J].水利信息化,2026,(1):59-62,70,5.
