全空间瞬变电磁法在隧道超前预报预测中的意义

Significance of full space transient electromagnetic method in the prediction of tunnel advanced prediction

应用瞬变电磁法的基本探测原理,结合隧道超前预报预测上的实际需要,探索研究两者结合对安全生产的意义。着重论述全空间瞬变电磁技术在预报预测隧道掘进前方构造赋水的可行性,探索全空间瞬变电磁技术在公路或铁路隧道这种特殊环境应用中需注意的若干问题,并简单阐述瞬变电磁法在应用当中需要注意探测结论要与地质现实相结合。通过剖析实际案例,确定瞬变电磁法可以在隧道超前预测、预报中起到巨大的安全和经济效益。

Through applying the basic detection principle of transient electromagnetic method and combining with the actual needs of the prediction of tunnel ahead,the significance of the combination of the two methods for the safe production is explored. The feasibility of full space transient electromagnetic technique to predict water bearing tunnel front structure prediction is discussed. Some issues for the exploration with full space transient electromagnetic technique are put forward in the engineering application of highway or railway tunnels in the special environment,and the application of transient electromagnetic method which should pay attention to the conclusion of the survey and combine with the geological reality is briefly explained. By analyzing the actual cases,it is concluded that the transient electromagnetic method can lead to great safety and economic benefits in the advance forecast and the prediction of the tunnel construction.