Fractures location on karstified limestone surfaces by Electrical Resistivity Tomography Characterization

Abstract

The location of main surface fault zones, identified by means of the geophysical technique is nowadays being resolved successfully. The aim of this research is to develop a suitable methodology for the interpretation of Electrical Resistivity Tomography (ERT) 2D images, specifically applied to the preliminary detection of surface faults and structural characterization of active and non-active fault on limestone sites. This work compiles tests and research performed on well-known objectives and analyses the effects of the main factors that condition resistivity images, in order to help in the resistivity profile interpretation. In relation to the study, we highlight the good correlation between the laboratory test and the field works. © 2016 Australian Geomechanics Society.