孔—巷瞬变电磁隧道不良地质体超前预报方法研究

李贺, 李貅, 戚志鹏, 曹华科

Seismic prediction of unfavorable geobodies in tunnels using the borehole-roadway transient electromagnetic method

LI He, LI Xiu, QI Zhi-Peng, CAO Hua-Ke

图3 激发源在目标体上方的模型示意

Fig.3 The excitation source is located above the target body