The Utilisation of Electrical Resistivity Imaging (ERI) for Geological Structures Mapping in Rock Mass: A Review

Electrical Resistivity Imaging (ERI) is an in-situ geophysical method widely used in environmental, engineering and hydrogeological explorations due to cost, time, data coverage efficiency. Traditionally, geotechnical parameters such as discontinuities properties are obtained from rock samples acquired a borehole. However, it only provides single information point, costly time-consuming. Thus, approach using electrical resistivity detect the presence of geological structure mass alternative that can be applied. Discontinuities include joints, bedding planes, blasting cracks, fractures, faults, folds. This paper aims present utilisation geoelectrical imaging for structures mapping based on review previous research. The effective tool obtain structural differentiation medium by interpreting 2D even 3D models. automated acquisition system, inversion codes, non-invasive user-friendly. raw received was analysed Res2DINV software. done applying robust finite element grid accommodate steep topography. interpretation included numerical modelling assess suitability all electrode arrays relation setting.