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7 |
Fig.7 Overlay of dBx/dt and dBy/dt distributions in |
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