Application of the opposing-coils transient electromagnetic method in detection of urban shallow cavities

WANG Liang, LONG Xia, WANG Ting-Ting, XI Zhen-Zhu, CHEN Xing-Pen, ZHONG Ming-Feng, DONG Zhi-Qiang

Geophysical and Geochemical Exploration . 2022, (5): 1289 -1295 . DOI: 10.11720/wtyht.2022.1467