基于多波勘探的跨孔CT交叉梯度联合反演算法  

Cross-gradient joint inversion algorithm of cross-hole CT based on multi wave exploration

作　　者：王少博 商祥 WANG Shaobo;SHANG Xiang(Changjiang Geophysical Exploration&Testing Co.,Ltd.(Wuhan),Wuhan 430010,China;School of Geophysics and Geomatics,China University of Geosciences,Wuhan 430074,China)

机构地区：[1]长江地球物理探测(武汉)有限公司,武汉430010 [2]中国地质大学地球物理与空间信息学院,武汉430074

出　　处：《世界地质》2023年第1期146-152,共7页World Geology

基　　金：犬木塘水库工程科技创新项目(W-2022-72)。

摘　　要：为了提高城市地下空间探测的准确性和可靠性,通过研究交叉梯度结构约束的联合CT反演方法,针对性地开展了跨孔电磁波CT与跨孔地震波CT的交叉梯度联合反演算法研究。通过试算结构不一致的双异常体模型,证明本算法有效降低了反演的多解性,改善了不同模型的结构一致性。In order to improve the accuracy and reliability of urban underground space exploration,the research on cross-gradient joint inversion algorithm of cross-hole electromagnetic wave CT and cross-hole seismic wave CT has been carried out by studying the joint CT inversion method of cross-gradient structure constraint.Through inversing double anomaly body geological model with inconsistent structure,the authors prove that the strategy of cross-gradient joint inversion can effectively reduce the multi-solution of inversion results and improve the structural consistency of different models.

关 键 词：电磁波CT 地震波CT 交叉梯度联合反演 

分 类 号：P631[天文地球—地质矿产勘探]