Study on the application of TRT about roadway excavation and lining in tianxing iron mine

In this paper,author expounds the operational principle and function of tunnel reflection tomography.Through forward probe to tunnel of northwest return air shaft of Tianxing iron mine,author analyses truely the geological condition in front of the working face.Then,the reasonable statement of arrange such as grouting treatment and Surrounding rock supporting could be ensured,and construction safety of tunnel could be guaranteed.