Fracture Characterisation Using the NA Inversion Algorithm on Synthetic GPR Signals

A028 FRACTURE CHARACTERISATION USING THE NA INVERSION ALGORITHM ON SYNTHETIC GPR SIGNALS Abstract 1 The geometry and properties of discontinuities are very important in the rock mass stability assessment. The GPR method which is able to yield information about the internal structure of resistive rocks was applied in extreme conditions to image sub-vertical cliffs. The profile interpretation allowed to locate several discontinuities whose characterisation required an analysis based on the frequency content of the radar reflection. The possibilities and the limitations of the reflectivity inversion were previously tested with a grid search within the parameter space. In this paper we