Study on Realtime Ahead Detection Technology for mining roadway based on double frequency induced method

Realtime Ahead Detection Technology used in mechanized excavation of coal mine roadway adopts Dual Frequency Induced Polarization Method to predict the geologic anomalies hidden before the excavating face. In the paper, considering the characteristics of mechanized excavation of coal mine roadway, the author puts forward the features of ideal ahead detection method which could be used in geologic anomalies prediction of roadway excavation. Several detecting probes would be used to emit detecting currents and receive induced polarization information in Realtime Ahead Detection Technology. According to adjusting current intensity and close sequence of detecting probes, we could scan the geological mass before the excavating face in different angles and depths. Thus, the hidden geologic anomalies could be predicted in time. This paper also discussed the possibility to realize the integration of the detector and the roadheader machine.