SEGJ Technical Conference


Induction Loggings in Tunnel Advanced Borehole for Geological Fore Search


Abstract
The results of the induction loggings in the tunnel advanced borehole was compared with electrical resistivity of tunnel ground by HEM for confirmation or fore prediction of geological features properties. Additionally, the applicability of the method of evaluating the tunnel geological features properties was arranged by comparing the lithofacies in an advanced bore core with the logging results.