Imaging ahead of Tunnel Boring Machines with DC Resistivity

To apply a geophysical method known as Direct Current (DC) resistivity to a laboratory scale Tunnel Boring Machine (TBM) for the purpose of imaging hazards ahead of tunneling. The objective is to determine the conditions under which such an approach is viable on a real TBM. Considerations include the highly conductive metal TBM and the location of any anomalous structures ahead of the tunnel face. Benefits include improved geotechnical hazard prediction ahead of tunneling and reduced operational downtime.