Abstract
The electrical method is a sensitive technique for groundwater detection. As the tunnel develops in a deep direction, the groundwater problem becomes prominent. Thus, tunnel groundwater forecasting is particularly important. Through the advanced water exploration prediction practice in the complex geology of Gaoligongshan Tunnel, the water detection sensitivity of the complex frequency conductance (CFC) technology and the time-domain transient electromagnetic method (TEM) are compared. The advantages and disadvantages of the two methods are discussed, and the CFC technology is obtained. In accordance with the conditions of use of the time-domain transient electromagnetic method, the processing data of the CFC and the TEM method are compared with the actual excavation to reveal the groundwater development and establish a correlation.
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