Acta Scientiarum Polonorum

Abstract: The influence of the foundation pad reinforcement on bearing capacity and stiffness increasing was described in the paper. The procedure of designing the reinforced foundation pad according to EBGEO was given. The calculations for chosen strip foundation of a two-storey administration building, constructed on organic ground with thickness of 3 m, were shown. Pads with different width, determined by the value of stress distribution angle β = 0°, 30° and 45°, reinforced by four layers of geogrid were designed based on EBGEO. Foundation pad reinforcement affects the subgrade bearing capacity, and the impact is the greatest in the case of pad with width equalled to strip foundation width. The stiffness pad increase, calculated according to EBGEO, is mainly due to pad loading and strength of the geosynthetics.