X-ray CT, geocomposite, FEM, homogenization

The paper describes some experience with the X-ray CT-FEM analysis. It focuses on geocomposites arising by chemical grouting of coal substances and on using mathematical modelling of response to a load. The application potential of this new methodology is found in utilization of the obtained properties for solving the stability problems by numerical modelling of geotechnical projects. The following research activities are touched: i) application of X-ray computed tomography (CT) for visualization of geo-materials structures, mainly geocomposites consisting of rocks (coal substance) and chemical grout materials (polyurethane resin), ii) finding correspondence between CT values and local material properties, iii) numerical testing of digitalized samples for obtaining homogenized properties, iv) experimental validation by means of laboratory tests of calculated homogenized properties.