THE PRINCIPAL OF SEISMIC COMPUTER-AIDED TOMOGRAPHY AND ITS APPLICATION TO EXAMINATION OF TUNNEL HAZARDS IN HIGHWAY

Seismic computer-aided tomography(CT) is a new geophysical technique. This method has advantages of high resolution,high reliability and visual image features. It can be widely used in engineering-geological investigation and hazard research of highway,site, tunnel and slope. Its application to geological hazard diagnosis in Bajiaoqing tunnel of Yuanmo thruway has yidlded a good result.