CRACKING AND DESTRUCTION SCHEME OF GRILLAGE UNDER THE COLUMN WITH MULTI-ROW PILES ARRANGEMENT
The data of physical experiment of reinforced concrete grillages under the column with multi-row arrangement of piles are presented. The character of formation and development of cracks at change of the main factors (the scheme of application of loading, percent and the scheme of reinforcement, movement of piles and their partial exclusion from work) is revealed. The classification of cracks is presented. Three schemes of destruction of foundations: on the compressed area, in the stretched zone and mixed failure are described.