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Geotechnical investigations in lignite open pit mine using electrical tomography (2D&3D) and seismic reflection methods

Andronikidis Nikolaos, Kritikakis Georgios, Vafeidis Antonios, Hamdan Hamdan, Agioutantis Zacharias, Steiakakis C., Oikonomou Nikolaos

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Περίληψη

The application of seismic reflection and electrical resistivity methods (2D and 3D) in geotechnical investigations is explored through a case study in Northern Greece. These methods were employed to Mavropigi lignite open pit mine and the surveyed area is the next step in mining expansion. The main aim of the geophysical survey was to map the bedrock, the contact between the Neogene and Schist/Carbonate formations as well as to estimate the thickness of the carbonate rocks on top of the Schist formations in order to study the stability of the final mine slopes. These geophysical data provides a geotechnical model which will be used in mine planning from Greek Public Power Corporation.

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