钻孔声呐和井间层析成像技术构建地下暗河三维模型及运用  

Construction and application of three-dimensional model of underground rivers using drilling sonar and cross well tomography technology

作　　者：李选涛 李云 罗新颖 向新志[3] 陈瑞华 Li Xuantao;Li Yun;Luo Xinying;Xiang Xinzhi;Chen Ruihua(PowerChina Kunming Engineering Co.,Ltd.,Kunming 650032,China;Guizhou Province Water Conservancy Project Construction Quality and Safety Center,Guiyang 550002,China;Sinohydro Eighth Engineering Bureau Co.,Ltd.,Changsha 410004,China)

机构地区：[1]中国电建集团昆明勘测设计研究院有限公司,云南昆明650032 [2]贵州省水利工程建设质量与安全中心,贵州贵阳550002 [3]中国水利水电第八工程局有限公司,湖南长沙410004

出　　处：《吉林水利》2025年第2期35-40,共6页Jilin Water Resources

基　　金：贵州省水利科技经费项目(KT202434)。

摘　　要：通过钻孔声呐和电磁波井间层析成像(Computed Tomography,CT)技术在地下暗河探测及暗河封堵后封堵缺陷检测中的应用,可在封堵地下暗河形成水库工程中,获得暗河的空间位置信息,构建其真实三维模型。单一方法对地下暗河(岩溶)探测成果精度低、分辨率弱、存在多解性,且缺少精确定位空间位置以及测量几何尺寸窥探暗河全貌的能力。基于综合物探框架,首次提出以钻孔声呐技术结合电磁波井间层析成像技术为主,以钻探等其它物探手段为辅的探测方法,该技术成功运用在贵州七星水库中,探明了暗河的位置信息和几何尺寸,并基于此对地下暗河封堵和封堵后堵头位置进行精细检测,圈定了堵头缺陷。This paper focuses on the application of drilling sonar and electro-magnetic waves CT(Computed Tomography)technology in underground river detection and plugging defect detection after plugging.In the project of blocking the underground underground river reservoir,the spatial location information of the underground river and the construction of the real 3D model.The single method has low accuracy,low resolution and multiple solutions of the underground river,and lacks the ability to accurately locate the spatial position and measure the geometric size to see the whole picture of the underground river.Based on the comprehensive geophysical exploration framework,for the first time,the drilling sonar technology combined with electro-magnetic wave interwell tomography technology and other geophysical means.In Qixing Reservoir in Guizhou province,proving the position information and geometric size of the underground river,and carefully detecting the plugging position of the underground river based on this,and defining the plugging defect.

关 键 词：地下暗河 钻孔声呐 电磁波井间层析成像技术 三维模型 

分 类 号：P631[天文地球—地质矿产勘探] TB52[天文地球—地质学]