矿业科学学报2025，Vol.10Issue(1)：14-23,10.DOI:10.19606/j.cnki.jmst.2024937
矿井钻孔雷达定向探测技术研究
Research on directional detection technology of mine borehole radar
摘要
Abstract
To address the problem that conventional borehole radar has difficulties in performing direc-tional detection of surrounding targets due to the effects of radar wave propagation characteristics and complex geological conditions in mines,research on directional borehole radar antenna technology and directional detection methods has been conducted.First,through the simulation design of the radiation surface and shielding structure,the antenna structure was optimized to improve its focusing radiation a-bility and effectively reduce signal interference in the mine environment.Next,impedance matching was achieved through resistance loading simulation analysis to improve the antenna's radiation efficiency and optimize its structural parameters.Finally,the radiation surface aperture angle was selected to be 60°,and the shielding shell height was set to 40 mm.A borehole radar directional recognition model was then constructed,and a detection method based on the amplitude spectrum ratio method was pro-posed to determine the anomalous azimuth angle within the mine borehole.Experimental results in the mine show that this directional borehole radar can accurately detect and identify the radial detection depth,distance from the borehole opening,and relative azimuth of coal-rock interfaces and small fault structures.The detection depth error is less than 0.01 m,and the deviation between the detected and actual target azimuth is less than 1°.关键词
钻孔雷达/定向探测/聚焦辐射/PID算法/定向识别模型Key words
borehole radar/directional detection/focused radiation/PID algorithm/directional identifi-cation model分类
矿山工程引用本文复制引用
许献磊,朱小松,李涛涛,刘芳奕,梁鹏..矿井钻孔雷达定向探测技术研究[J].矿业科学学报,2025,10(1):14-23,10.基金项目
国家重点研发计划(2023YFC3008902,2023YFB3211002) （2023YFC3008902,2023YFB3211002）
国家自然科学基金(52174155) （52174155）
