摘要
由于地下空洞的影响,宋新庄煤矿地面发生塌陷。为研究主斜井井筒外围地下空洞的分布情况,本文采用探地雷达对主斜井顶底板及侧帮外侧进行探测。由于受到人文噪声和井筒支护材料的影响,探地雷达图像中包含干扰信息。通过二维经验模态分解算法压制干扰信息,得到真实的图像特征。经过钻孔验证,探地雷达解释结果与主斜井井筒外围空洞的实际情况基本相符。
Because of the influence of underground empty hole,ground subsidence in Songxinzhuang coalmine happered.To research the empty hole distribution around the main inclined shaft,the ground penetrating radar was used to detect the roof,floor and lateral of the main inclined shaft.Under the effect of human noise and shaft supporting material,ground penetrating radar images contained interference information,which can be removed by the bidimensional empirical mode decomposition algorithm.After the comparison with drilling holes,the results obtained from ground penetrating radar images were consistent with the underground situation,and also consistent with the geological data.
出处
《矿业科学学报》
2017年第5期482-488,共7页
Journal of Mining Science and Technology
基金
国家重大科学仪器设备开发专项(2012YQ030126)
国防科工局项目(FZ1402-08)
关键词
矿山安全
井筒
地下空洞
探地雷达
经验模态分解
干扰去除
mine security
shaft
empty hole
ground penetrating radar
empirical mode decomposition
noise removal
