Optimization of building site category determination in an undermined area prior to and after exhausting coal seams

► Intensity of undermining effects existing and planned engineering work projects is examined. ► These are determined according to prognostic predicted parameters of ground deformation. ► Parameters were inclination, radius of curvature and linear unit deformation. ► This paper deals with evaluation of real ground deformation parameters. ► Methodology was found as capable of much more precise determination of critical zones.