微动勘探与高密度电法在小尺度老采空区探测中的应用
, 孙建伟Application of microtremor survey and high density electrical method in exploration of small-scale old goaf
JIA Xu1, 2 , SUN Jianwei1 , LIU Xiangdong1 , CHENG Xianda1 , HUANG Honglin1
, SUN Jianwei