The Application of GPRMax^2D in the Quality Testing of Tunnels

The paper briefly introduces the principle of geological radar. The simulation software of the GPRMAX^2D ground penetrating radar is applied to the 2D forward simulation of voids and reinforcing bars behind the tunnel lining. The image features of ground penetrating radar of the defect are obtained, which is further used to the detection of coal mine tunnels, and analyzes the radar image features of tunnel lining.